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Based on kernel version 3.2. Page generated on 2012-01-05 23:28 EST.
1 2 LINUX ALLOCATED DEVICES (2.6+ version) 3 4 Maintained by Alan Cox <device@lanana.org> 5 6 Last revised: 6th April 2009 7 8 This list is the Linux Device List, the official registry of allocated 9 device numbers and /dev directory nodes for the Linux operating 10 system. 11 12 The latest version of this list is available from 13 http://www.lanana.org/docs/device-list/ or 14 ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be 15 newer than the one distributed with the Linux kernel. 16 17 The LaTeX version of this document is no longer maintained. 18 19 This document is included by reference into the Filesystem Hierarchy 20 Standard (FHS). The FHS is available from http://www.pathname.com/fhs/. 21 22 Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga 23 platform only. Allocations marked (68k/Atari) apply to Linux/68k on 24 the Atari platform only. 25 26 The symbol {2.6} means the allocation is obsolete and scheduled for 27 removal once kernel version 2.6 (or equivalent) is released. Some of these 28 allocations have already been removed. 29 30 This document is in the public domain. The author requests, however, 31 that semantically altered versions are not distributed without 32 permission of the author, assuming the author can be contacted without 33 an unreasonable effort. 34 35 In particular, please don't sent patches for this list to Linus, at 36 least not without contacting me first. 37 38 I do not have any information about these devices beyond what appears 39 on this list. Any such information requests will be deleted without 40 reply. 41 42 43 **** DEVICE DRIVERS AUTHORS PLEASE READ THIS **** 44 45 To have a major number allocated, or a minor number in situations 46 where that applies (e.g. busmice), please contact me with the 47 appropriate device information. Also, if you have additional 48 information regarding any of the devices listed below, or if I have 49 made a mistake, I would greatly appreciate a note. 50 51 I do, however, make a few requests about the nature of your report. 52 This is necessary for me to be able to keep this list up to date and 53 correct in a timely manner. First of all, *please* send it to the 54 correct address... <device@lanana.org>. I receive hundreds of email 55 messages a day, so mail sent to other addresses may very well get lost 56 in the avalanche. Please put in a descriptive subject, so I can find 57 your mail again should I need to. Too many people send me email 58 saying just "device number request" in the subject. 59 60 Second, please include a description of the device *in the same format 61 as this list*. The reason for this is that it is the only way I have 62 found to ensure I have all the requisite information to publish your 63 device and avoid conflicts. 64 65 Third, please don't assume that the distributed version of the list is 66 up to date. Due to the number of registrations I have to maintain it 67 in "batch mode", so there is likely additional registrations that 68 haven't been listed yet. 69 70 Fourth, remember that Linux now has extensive support for dynamic allocation 71 of device numbering and can use sysfs and udev to handle the naming needs. 72 There are still some exceptions in the serial and boot device area. Before 73 asking for a device number make sure you actually need one. 74 75 Finally, sometimes I have to play "namespace police." Please don't be 76 offended. I often get submissions for /dev names that would be bound 77 to cause conflicts down the road. I am trying to avoid getting in a 78 situation where we would have to suffer an incompatible forward 79 change. Therefore, please consult with me *before* you make your 80 device names and numbers in any way public, at least to the point 81 where it would be at all difficult to get them changed. 82 83 Your cooperation is appreciated. 84 85 86 0 Unnamed devices (e.g. non-device mounts) 87 0 = reserved as null device number 88 See block major 144, 145, 146 for expansion areas. 89 90 1 char Memory devices 91 1 = /dev/mem Physical memory access 92 2 = /dev/kmem Kernel virtual memory access 93 3 = /dev/null Null device 94 4 = /dev/port I/O port access 95 5 = /dev/zero Null byte source 96 6 = /dev/core OBSOLETE - replaced by /proc/kcore 97 7 = /dev/full Returns ENOSPC on write 98 8 = /dev/random Nondeterministic random number gen. 99 9 = /dev/urandom Faster, less secure random number gen. 100 10 = /dev/aio Asynchronous I/O notification interface 101 11 = /dev/kmsg Writes to this come out as printk's 102 12 = /dev/oldmem Used by crashdump kernels to access 103 the memory of the kernel that crashed. 104 105 1 block RAM disk 106 0 = /dev/ram0 First RAM disk 107 1 = /dev/ram1 Second RAM disk 108 ... 109 250 = /dev/initrd Initial RAM disk 110 111 Older kernels had /dev/ramdisk (1, 1) here. 112 /dev/initrd refers to a RAM disk which was preloaded 113 by the boot loader; newer kernels use /dev/ram0 for 114 the initrd. 115 116 2 char Pseudo-TTY masters 117 0 = /dev/ptyp0 First PTY master 118 1 = /dev/ptyp1 Second PTY master 119 ... 120 255 = /dev/ptyef 256th PTY master 121 122 Pseudo-tty's are named as follows: 123 * Masters are "pty", slaves are "tty"; 124 * the fourth letter is one of pqrstuvwxyzabcde indicating 125 the 1st through 16th series of 16 pseudo-ttys each, and 126 * the fifth letter is one of 0123456789abcdef indicating 127 the position within the series. 128 129 These are the old-style (BSD) PTY devices; Unix98 130 devices are on major 128 and above and use the PTY 131 master multiplex (/dev/ptmx) to acquire a PTY on 132 demand. 133 134 2 block Floppy disks 135 0 = /dev/fd0 Controller 0, drive 0, autodetect 136 1 = /dev/fd1 Controller 0, drive 1, autodetect 137 2 = /dev/fd2 Controller 0, drive 2, autodetect 138 3 = /dev/fd3 Controller 0, drive 3, autodetect 139 128 = /dev/fd4 Controller 1, drive 0, autodetect 140 129 = /dev/fd5 Controller 1, drive 1, autodetect 141 130 = /dev/fd6 Controller 1, drive 2, autodetect 142 131 = /dev/fd7 Controller 1, drive 3, autodetect 143 144 To specify format, add to the autodetect device number: 145 0 = /dev/fd? Autodetect format 146 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1) 147 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1) 148 48 = /dev/fd?h410 5.25" 410K in a 1200K drive 149 64 = /dev/fd?h420 5.25" 420K in a 1200K drive 150 24 = /dev/fd?h720 5.25" 720K in a 1200K drive 151 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1) 152 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1) 153 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1) 154 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive 155 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive 156 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1) 157 158 12 = /dev/fd?u360 3.5" 360K Double Density(2) 159 16 = /dev/fd?u720 3.5" 720K Double Density(1) 160 120 = /dev/fd?u800 3.5" 800K Double Density(2) 161 52 = /dev/fd?u820 3.5" 820K Double Density 162 68 = /dev/fd?u830 3.5" 830K Double Density 163 84 = /dev/fd?u1040 3.5" 1040K Double Density(1) 164 88 = /dev/fd?u1120 3.5" 1120K Double Density(1) 165 28 = /dev/fd?u1440 3.5" 1440K High Density(1) 166 124 = /dev/fd?u1600 3.5" 1600K High Density(1) 167 44 = /dev/fd?u1680 3.5" 1680K High Density(3) 168 60 = /dev/fd?u1722 3.5" 1722K High Density 169 76 = /dev/fd?u1743 3.5" 1743K High Density 170 96 = /dev/fd?u1760 3.5" 1760K High Density 171 116 = /dev/fd?u1840 3.5" 1840K High Density(3) 172 100 = /dev/fd?u1920 3.5" 1920K High Density(1) 173 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1) 174 104 = /dev/fd?u3200 3.5" 3200K Extra Density 175 108 = /dev/fd?u3520 3.5" 3520K Extra Density 176 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1) 177 178 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete? 179 180 (1) Autodetectable format 181 (2) Autodetectable format in a Double Density (720K) drive only 182 (3) Autodetectable format in a High Density (1440K) drive only 183 184 NOTE: The letter in the device name (d, q, h or u) 185 signifies the type of drive: 5.25" Double Density (d), 186 5.25" Quad Density (q), 5.25" High Density (h) or 3.5" 187 (any model, u). The use of the capital letters D, H 188 and E for the 3.5" models have been deprecated, since 189 the drive type is insignificant for these devices. 190 191 3 char Pseudo-TTY slaves 192 0 = /dev/ttyp0 First PTY slave 193 1 = /dev/ttyp1 Second PTY slave 194 ... 195 255 = /dev/ttyef 256th PTY slave 196 197 These are the old-style (BSD) PTY devices; Unix98 198 devices are on major 136 and above. 199 200 3 block First MFM, RLL and IDE hard disk/CD-ROM interface 201 0 = /dev/hda Master: whole disk (or CD-ROM) 202 64 = /dev/hdb Slave: whole disk (or CD-ROM) 203 204 For partitions, add to the whole disk device number: 205 0 = /dev/hd? Whole disk 206 1 = /dev/hd?1 First partition 207 2 = /dev/hd?2 Second partition 208 ... 209 63 = /dev/hd?63 63rd partition 210 211 For Linux/i386, partitions 1-4 are the primary 212 partitions, and 5 and above are logical partitions. 213 Other versions of Linux use partitioning schemes 214 appropriate to their respective architectures. 215 216 4 char TTY devices 217 0 = /dev/tty0 Current virtual console 218 219 1 = /dev/tty1 First virtual console 220 ... 221 63 = /dev/tty63 63rd virtual console 222 64 = /dev/ttyS0 First UART serial port 223 ... 224 255 = /dev/ttyS191 192nd UART serial port 225 226 UART serial ports refer to 8250/16450/16550 series devices. 227 228 Older versions of the Linux kernel used this major 229 number for BSD PTY devices. As of Linux 2.1.115, this 230 is no longer supported. Use major numbers 2 and 3. 231 232 4 block Aliases for dynamically allocated major devices to be used 233 when its not possible to create the real device nodes 234 because the root filesystem is mounted read-only. 235 236 0 = /dev/root 237 238 5 char Alternate TTY devices 239 0 = /dev/tty Current TTY device 240 1 = /dev/console System console 241 2 = /dev/ptmx PTY master multiplex 242 3 = /dev/ttyprintk User messages via printk TTY device 243 64 = /dev/cua0 Callout device for ttyS0 244 ... 245 255 = /dev/cua191 Callout device for ttyS191 246 247 (5,1) is /dev/console starting with Linux 2.1.71. See 248 the section on terminal devices for more information 249 on /dev/console. 250 251 6 char Parallel printer devices 252 0 = /dev/lp0 Parallel printer on parport0 253 1 = /dev/lp1 Parallel printer on parport1 254 ... 255 256 Current Linux kernels no longer have a fixed mapping 257 between parallel ports and I/O addresses. Instead, 258 they are redirected through the parport multiplex layer. 259 260 7 char Virtual console capture devices 261 0 = /dev/vcs Current vc text contents 262 1 = /dev/vcs1 tty1 text contents 263 ... 264 63 = /dev/vcs63 tty63 text contents 265 128 = /dev/vcsa Current vc text/attribute contents 266 129 = /dev/vcsa1 tty1 text/attribute contents 267 ... 268 191 = /dev/vcsa63 tty63 text/attribute contents 269 270 NOTE: These devices permit both read and write access. 271 272 7 block Loopback devices 273 0 = /dev/loop0 First loop device 274 1 = /dev/loop1 Second loop device 275 ... 276 277 The loop devices are used to mount filesystems not 278 associated with block devices. The binding to the 279 loop devices is handled by mount(8) or losetup(8). 280 281 8 block SCSI disk devices (0-15) 282 0 = /dev/sda First SCSI disk whole disk 283 16 = /dev/sdb Second SCSI disk whole disk 284 32 = /dev/sdc Third SCSI disk whole disk 285 ... 286 240 = /dev/sdp Sixteenth SCSI disk whole disk 287 288 Partitions are handled in the same way as for IDE 289 disks (see major number 3) except that the limit on 290 partitions is 15. 291 292 9 char SCSI tape devices 293 0 = /dev/st0 First SCSI tape, mode 0 294 1 = /dev/st1 Second SCSI tape, mode 0 295 ... 296 32 = /dev/st0l First SCSI tape, mode 1 297 33 = /dev/st1l Second SCSI tape, mode 1 298 ... 299 64 = /dev/st0m First SCSI tape, mode 2 300 65 = /dev/st1m Second SCSI tape, mode 2 301 ... 302 96 = /dev/st0a First SCSI tape, mode 3 303 97 = /dev/st1a Second SCSI tape, mode 3 304 ... 305 128 = /dev/nst0 First SCSI tape, mode 0, no rewind 306 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind 307 ... 308 160 = /dev/nst0l First SCSI tape, mode 1, no rewind 309 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind 310 ... 311 192 = /dev/nst0m First SCSI tape, mode 2, no rewind 312 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind 313 ... 314 224 = /dev/nst0a First SCSI tape, mode 3, no rewind 315 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind 316 ... 317 318 "No rewind" refers to the omission of the default 319 automatic rewind on device close. The MTREW or MTOFFL 320 ioctl()'s can be used to rewind the tape regardless of 321 the device used to access it. 322 323 9 block Metadisk (RAID) devices 324 0 = /dev/md0 First metadisk group 325 1 = /dev/md1 Second metadisk group 326 ... 327 328 The metadisk driver is used to span a 329 filesystem across multiple physical disks. 330 331 10 char Non-serial mice, misc features 332 0 = /dev/logibm Logitech bus mouse 333 1 = /dev/psaux PS/2-style mouse port 334 2 = /dev/inportbm Microsoft Inport bus mouse 335 3 = /dev/atibm ATI XL bus mouse 336 4 = /dev/jbm J-mouse 337 4 = /dev/amigamouse Amiga mouse (68k/Amiga) 338 5 = /dev/atarimouse Atari mouse 339 6 = /dev/sunmouse Sun mouse 340 7 = /dev/amigamouse1 Second Amiga mouse 341 8 = /dev/smouse Simple serial mouse driver 342 9 = /dev/pc110pad IBM PC-110 digitizer pad 343 10 = /dev/adbmouse Apple Desktop Bus mouse 344 11 = /dev/vrtpanel Vr41xx embedded touch panel 345 13 = /dev/vpcmouse Connectix Virtual PC Mouse 346 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen 347 15 = /dev/touchscreen/mk712 MK712 touchscreen 348 128 = /dev/beep Fancy beep device 349 129 = 350 130 = /dev/watchdog Watchdog timer port 351 131 = /dev/temperature Machine internal temperature 352 132 = /dev/hwtrap Hardware fault trap 353 133 = /dev/exttrp External device trap 354 134 = /dev/apm_bios Advanced Power Management BIOS 355 135 = /dev/rtc Real Time Clock 356 139 = /dev/openprom SPARC OpenBoot PROM 357 140 = /dev/relay8 Berkshire Products Octal relay card 358 141 = /dev/relay16 Berkshire Products ISO-16 relay card 359 142 = 360 143 = /dev/pciconf PCI configuration space 361 144 = /dev/nvram Non-volatile configuration RAM 362 145 = /dev/hfmodem Soundcard shortwave modem control 363 146 = /dev/graphics Linux/SGI graphics device 364 147 = /dev/opengl Linux/SGI OpenGL pipe 365 148 = /dev/gfx Linux/SGI graphics effects device 366 149 = /dev/input/mouse Linux/SGI Irix emulation mouse 367 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard 368 151 = /dev/led Front panel LEDs 369 152 = /dev/kpoll Kernel Poll Driver 370 153 = /dev/mergemem Memory merge device 371 154 = /dev/pmu Macintosh PowerBook power manager 372 155 = /dev/isictl MultiTech ISICom serial control 373 156 = /dev/lcd Front panel LCD display 374 157 = /dev/ac Applicom Intl Profibus card 375 158 = /dev/nwbutton Netwinder external button 376 159 = /dev/nwdebug Netwinder debug interface 377 160 = /dev/nwflash Netwinder flash memory 378 161 = /dev/userdma User-space DMA access 379 162 = /dev/smbus System Management Bus 380 163 = /dev/lik Logitech Internet Keyboard 381 164 = /dev/ipmo Intel Intelligent Platform Management 382 165 = /dev/vmmon VMWare virtual machine monitor 383 166 = /dev/i2o/ctl I2O configuration manager 384 167 = /dev/specialix_sxctl Specialix serial control 385 168 = /dev/tcldrv Technology Concepts serial control 386 169 = /dev/specialix_rioctl Specialix RIO serial control 387 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices 388 171 = /dev/srripc QNX4 API IPC manager 389 172 = /dev/usemaclone Semaphore clone device 390 173 = /dev/ipmikcs Intelligent Platform Management 391 174 = /dev/uctrl SPARCbook 3 microcontroller 392 175 = /dev/agpgart AGP Graphics Address Remapping Table 393 176 = /dev/gtrsc Gorgy Timing radio clock 394 177 = /dev/cbm Serial CBM bus 395 178 = /dev/jsflash JavaStation OS flash SIMM 396 179 = /dev/xsvc High-speed shared-mem/semaphore service 397 180 = /dev/vrbuttons Vr41xx button input device 398 181 = /dev/toshiba Toshiba laptop SMM support 399 182 = /dev/perfctr Performance-monitoring counters 400 183 = /dev/hwrng Generic random number generator 401 184 = /dev/cpu/microcode CPU microcode update interface 402 186 = /dev/atomicps Atomic shapshot of process state data 403 187 = /dev/irnet IrNET device 404 188 = /dev/smbusbios SMBus BIOS 405 189 = /dev/ussp_ctl User space serial port control 406 190 = /dev/crash Mission Critical Linux crash dump facility 407 191 = /dev/pcl181 <information missing> 408 192 = /dev/nas_xbus NAS xbus LCD/buttons access 409 193 = /dev/d7s SPARC 7-segment display 410 194 = /dev/zkshim Zero-Knowledge network shim control 411 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201 412 198 = /dev/sexec Signed executable interface 413 199 = /dev/scanners/cuecat :CueCat barcode scanner 414 200 = /dev/net/tun TAP/TUN network device 415 201 = /dev/button/gulpb Transmeta GULP-B buttons 416 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control 417 204 = /dev/video/em8300 EM8300 DVD decoder control 418 205 = /dev/video/em8300_mv EM8300 DVD decoder video 419 206 = /dev/video/em8300_ma EM8300 DVD decoder audio 420 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture 421 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller 422 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver 423 210 = /dev/impi/bt IMPI coprocessor block transfer 424 211 = /dev/impi/smic IMPI coprocessor stream interface 425 212 = /dev/watchdogs/0 First watchdog device 426 213 = /dev/watchdogs/1 Second watchdog device 427 214 = /dev/watchdogs/2 Third watchdog device 428 215 = /dev/watchdogs/3 Fourth watchdog device 429 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel 430 217 = /dev/ni/natmotn National Instruments Motion 431 218 = /dev/kchuid Inter-process chuid control 432 219 = /dev/modems/mwave MWave modem firmware upload 433 220 = /dev/mptctl Message passing technology (MPT) control 434 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver 435 222 = /dev/mvista/hasi Montavista PICMG high availability 436 223 = /dev/input/uinput User level driver support for input 437 224 = /dev/tpm TCPA TPM driver 438 225 = /dev/pps Pulse Per Second driver 439 226 = /dev/systrace Systrace device 440 227 = /dev/mcelog X86_64 Machine Check Exception driver 441 228 = /dev/hpet HPET driver 442 229 = /dev/fuse Fuse (virtual filesystem in user-space) 443 230 = /dev/midishare MidiShare driver 444 231 = /dev/snapshot System memory snapshot device 445 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions) 446 233 = /dev/kmview View-OS A process with a view 447 234 = /dev/btrfs-control Btrfs control device 448 235 = /dev/autofs Autofs control device 449 236 = /dev/mapper/control Device-Mapper control device 450 240-254 Reserved for local use 451 255 Reserved for MISC_DYNAMIC_MINOR 452 453 11 char Raw keyboard device (Linux/SPARC only) 454 0 = /dev/kbd Raw keyboard device 455 456 11 char Serial Mux device (Linux/PA-RISC only) 457 0 = /dev/ttyB0 First mux port 458 1 = /dev/ttyB1 Second mux port 459 ... 460 461 11 block SCSI CD-ROM devices 462 0 = /dev/scd0 First SCSI CD-ROM 463 1 = /dev/scd1 Second SCSI CD-ROM 464 ... 465 466 The prefix /dev/sr (instead of /dev/scd) has been deprecated. 467 468 12 char QIC-02 tape 469 2 = /dev/ntpqic11 QIC-11, no rewind-on-close 470 3 = /dev/tpqic11 QIC-11, rewind-on-close 471 4 = /dev/ntpqic24 QIC-24, no rewind-on-close 472 5 = /dev/tpqic24 QIC-24, rewind-on-close 473 6 = /dev/ntpqic120 QIC-120, no rewind-on-close 474 7 = /dev/tpqic120 QIC-120, rewind-on-close 475 8 = /dev/ntpqic150 QIC-150, no rewind-on-close 476 9 = /dev/tpqic150 QIC-150, rewind-on-close 477 478 The device names specified are proposed -- if there 479 are "standard" names for these devices, please let me know. 480 481 12 block 482 483 13 char Input core 484 0 = /dev/input/js0 First joystick 485 1 = /dev/input/js1 Second joystick 486 ... 487 32 = /dev/input/mouse0 First mouse 488 33 = /dev/input/mouse1 Second mouse 489 ... 490 63 = /dev/input/mice Unified mouse 491 64 = /dev/input/event0 First event queue 492 65 = /dev/input/event1 Second event queue 493 ... 494 495 Each device type has 5 bits (32 minors). 496 497 13 block 8-bit MFM/RLL/IDE controller 498 0 = /dev/xda First XT disk whole disk 499 64 = /dev/xdb Second XT disk whole disk 500 501 Partitions are handled in the same way as IDE disks 502 (see major number 3). 503 504 14 char Open Sound System (OSS) 505 0 = /dev/mixer Mixer control 506 1 = /dev/sequencer Audio sequencer 507 2 = /dev/midi00 First MIDI port 508 3 = /dev/dsp Digital audio 509 4 = /dev/audio Sun-compatible digital audio 510 6 = 511 7 = /dev/audioctl SPARC audio control device 512 8 = /dev/sequencer2 Sequencer -- alternate device 513 16 = /dev/mixer1 Second soundcard mixer control 514 17 = /dev/patmgr0 Sequencer patch manager 515 18 = /dev/midi01 Second MIDI port 516 19 = /dev/dsp1 Second soundcard digital audio 517 20 = /dev/audio1 Second soundcard Sun digital audio 518 33 = /dev/patmgr1 Sequencer patch manager 519 34 = /dev/midi02 Third MIDI port 520 50 = /dev/midi03 Fourth MIDI port 521 522 14 block 523 524 15 char Joystick 525 0 = /dev/js0 First analog joystick 526 1 = /dev/js1 Second analog joystick 527 ... 528 128 = /dev/djs0 First digital joystick 529 129 = /dev/djs1 Second digital joystick 530 ... 531 15 block Sony CDU-31A/CDU-33A CD-ROM 532 0 = /dev/sonycd Sony CDU-31a CD-ROM 533 534 16 char Non-SCSI scanners 535 0 = /dev/gs4500 Genius 4500 handheld scanner 536 537 16 block GoldStar CD-ROM 538 0 = /dev/gscd GoldStar CD-ROM 539 540 17 char OBSOLETE (was Chase serial card) 541 0 = /dev/ttyH0 First Chase port 542 1 = /dev/ttyH1 Second Chase port 543 ... 544 17 block Optics Storage CD-ROM 545 0 = /dev/optcd Optics Storage CD-ROM 546 547 18 char OBSOLETE (was Chase serial card - alternate devices) 548 0 = /dev/cuh0 Callout device for ttyH0 549 1 = /dev/cuh1 Callout device for ttyH1 550 ... 551 18 block Sanyo CD-ROM 552 0 = /dev/sjcd Sanyo CD-ROM 553 554 19 char Cyclades serial card 555 0 = /dev/ttyC0 First Cyclades port 556 ... 557 31 = /dev/ttyC31 32nd Cyclades port 558 559 19 block "Double" compressed disk 560 0 = /dev/double0 First compressed disk 561 ... 562 7 = /dev/double7 Eighth compressed disk 563 128 = /dev/cdouble0 Mirror of first compressed disk 564 ... 565 135 = /dev/cdouble7 Mirror of eighth compressed disk 566 567 See the Double documentation for the meaning of the 568 mirror devices. 569 570 20 char Cyclades serial card - alternate devices 571 0 = /dev/cub0 Callout device for ttyC0 572 ... 573 31 = /dev/cub31 Callout device for ttyC31 574 575 20 block Hitachi CD-ROM (under development) 576 0 = /dev/hitcd Hitachi CD-ROM 577 578 21 char Generic SCSI access 579 0 = /dev/sg0 First generic SCSI device 580 1 = /dev/sg1 Second generic SCSI device 581 ... 582 583 Most distributions name these /dev/sga, /dev/sgb...; 584 this sets an unnecessary limit of 26 SCSI devices in 585 the system and is counter to standard Linux 586 device-naming practice. 587 588 21 block Acorn MFM hard drive interface 589 0 = /dev/mfma First MFM drive whole disk 590 64 = /dev/mfmb Second MFM drive whole disk 591 592 This device is used on the ARM-based Acorn RiscPC. 593 Partitions are handled the same way as for IDE disks 594 (see major number 3). 595 596 22 char Digiboard serial card 597 0 = /dev/ttyD0 First Digiboard port 598 1 = /dev/ttyD1 Second Digiboard port 599 ... 600 22 block Second IDE hard disk/CD-ROM interface 601 0 = /dev/hdc Master: whole disk (or CD-ROM) 602 64 = /dev/hdd Slave: whole disk (or CD-ROM) 603 604 Partitions are handled the same way as for the first 605 interface (see major number 3). 606 607 23 char Digiboard serial card - alternate devices 608 0 = /dev/cud0 Callout device for ttyD0 609 1 = /dev/cud1 Callout device for ttyD1 610 ... 611 23 block Mitsumi proprietary CD-ROM 612 0 = /dev/mcd Mitsumi CD-ROM 613 614 24 char Stallion serial card 615 0 = /dev/ttyE0 Stallion port 0 card 0 616 1 = /dev/ttyE1 Stallion port 1 card 0 617 ... 618 64 = /dev/ttyE64 Stallion port 0 card 1 619 65 = /dev/ttyE65 Stallion port 1 card 1 620 ... 621 128 = /dev/ttyE128 Stallion port 0 card 2 622 129 = /dev/ttyE129 Stallion port 1 card 2 623 ... 624 192 = /dev/ttyE192 Stallion port 0 card 3 625 193 = /dev/ttyE193 Stallion port 1 card 3 626 ... 627 24 block Sony CDU-535 CD-ROM 628 0 = /dev/cdu535 Sony CDU-535 CD-ROM 629 630 25 char Stallion serial card - alternate devices 631 0 = /dev/cue0 Callout device for ttyE0 632 1 = /dev/cue1 Callout device for ttyE1 633 ... 634 64 = /dev/cue64 Callout device for ttyE64 635 65 = /dev/cue65 Callout device for ttyE65 636 ... 637 128 = /dev/cue128 Callout device for ttyE128 638 129 = /dev/cue129 Callout device for ttyE129 639 ... 640 192 = /dev/cue192 Callout device for ttyE192 641 193 = /dev/cue193 Callout device for ttyE193 642 ... 643 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM 644 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0 645 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1 646 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2 647 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3 648 649 26 char 650 651 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM 652 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0 653 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1 654 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2 655 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3 656 657 27 char QIC-117 tape 658 0 = /dev/qft0 Unit 0, rewind-on-close 659 1 = /dev/qft1 Unit 1, rewind-on-close 660 2 = /dev/qft2 Unit 2, rewind-on-close 661 3 = /dev/qft3 Unit 3, rewind-on-close 662 4 = /dev/nqft0 Unit 0, no rewind-on-close 663 5 = /dev/nqft1 Unit 1, no rewind-on-close 664 6 = /dev/nqft2 Unit 2, no rewind-on-close 665 7 = /dev/nqft3 Unit 3, no rewind-on-close 666 16 = /dev/zqft0 Unit 0, rewind-on-close, compression 667 17 = /dev/zqft1 Unit 1, rewind-on-close, compression 668 18 = /dev/zqft2 Unit 2, rewind-on-close, compression 669 19 = /dev/zqft3 Unit 3, rewind-on-close, compression 670 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression 671 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression 672 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression 673 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression 674 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks 675 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks 676 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks 677 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks 678 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks 679 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks 680 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks 681 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks 682 683 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM 684 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0 685 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1 686 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2 687 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3 688 689 28 char Stallion serial card - card programming 690 0 = /dev/staliomem0 First Stallion card I/O memory 691 1 = /dev/staliomem1 Second Stallion card I/O memory 692 2 = /dev/staliomem2 Third Stallion card I/O memory 693 3 = /dev/staliomem3 Fourth Stallion card I/O memory 694 695 28 char Atari SLM ACSI laser printer (68k/Atari) 696 0 = /dev/slm0 First SLM laser printer 697 1 = /dev/slm1 Second SLM laser printer 698 ... 699 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM 700 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0 701 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1 702 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2 703 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3 704 705 28 block ACSI disk (68k/Atari) 706 0 = /dev/ada First ACSI disk whole disk 707 16 = /dev/adb Second ACSI disk whole disk 708 32 = /dev/adc Third ACSI disk whole disk 709 ... 710 240 = /dev/adp 16th ACSI disk whole disk 711 712 Partitions are handled in the same way as for IDE 713 disks (see major number 3) except that the limit on 714 partitions is 15, like SCSI. 715 716 29 char Universal frame buffer 717 0 = /dev/fb0 First frame buffer 718 1 = /dev/fb1 Second frame buffer 719 ... 720 31 = /dev/fb31 32nd frame buffer 721 722 29 block Aztech/Orchid/Okano/Wearnes CD-ROM 723 0 = /dev/aztcd Aztech CD-ROM 724 725 30 char iBCS-2 compatibility devices 726 0 = /dev/socksys Socket access 727 1 = /dev/spx SVR3 local X interface 728 32 = /dev/inet/ip Network access 729 33 = /dev/inet/icmp 730 34 = /dev/inet/ggp 731 35 = /dev/inet/ipip 732 36 = /dev/inet/tcp 733 37 = /dev/inet/egp 734 38 = /dev/inet/pup 735 39 = /dev/inet/udp 736 40 = /dev/inet/idp 737 41 = /dev/inet/rawip 738 739 Additionally, iBCS-2 requires the following links: 740 741 /dev/ip -> /dev/inet/ip 742 /dev/icmp -> /dev/inet/icmp 743 /dev/ggp -> /dev/inet/ggp 744 /dev/ipip -> /dev/inet/ipip 745 /dev/tcp -> /dev/inet/tcp 746 /dev/egp -> /dev/inet/egp 747 /dev/pup -> /dev/inet/pup 748 /dev/udp -> /dev/inet/udp 749 /dev/idp -> /dev/inet/idp 750 /dev/rawip -> /dev/inet/rawip 751 /dev/inet/arp -> /dev/inet/udp 752 /dev/inet/rip -> /dev/inet/udp 753 /dev/nfsd -> /dev/socksys 754 /dev/X0R -> /dev/null (? apparently not required ?) 755 756 30 block Philips LMS CM-205 CD-ROM 757 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM 758 759 /dev/lmscd is an older name for this device. This 760 driver does not work with the CM-205MS CD-ROM. 761 762 31 char MPU-401 MIDI 763 0 = /dev/mpu401data MPU-401 data port 764 1 = /dev/mpu401stat MPU-401 status port 765 766 31 block ROM/flash memory card 767 0 = /dev/rom0 First ROM card (rw) 768 ... 769 7 = /dev/rom7 Eighth ROM card (rw) 770 8 = /dev/rrom0 First ROM card (ro) 771 ... 772 15 = /dev/rrom7 Eighth ROM card (ro) 773 16 = /dev/flash0 First flash memory card (rw) 774 ... 775 23 = /dev/flash7 Eighth flash memory card (rw) 776 24 = /dev/rflash0 First flash memory card (ro) 777 ... 778 31 = /dev/rflash7 Eighth flash memory card (ro) 779 780 The read-write (rw) devices support back-caching 781 written data in RAM, as well as writing to flash RAM 782 devices. The read-only devices (ro) support reading 783 only. 784 785 32 char Specialix serial card 786 0 = /dev/ttyX0 First Specialix port 787 1 = /dev/ttyX1 Second Specialix port 788 ... 789 32 block Philips LMS CM-206 CD-ROM 790 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM 791 792 33 char Specialix serial card - alternate devices 793 0 = /dev/cux0 Callout device for ttyX0 794 1 = /dev/cux1 Callout device for ttyX1 795 ... 796 33 block Third IDE hard disk/CD-ROM interface 797 0 = /dev/hde Master: whole disk (or CD-ROM) 798 64 = /dev/hdf Slave: whole disk (or CD-ROM) 799 800 Partitions are handled the same way as for the first 801 interface (see major number 3). 802 803 34 char Z8530 HDLC driver 804 0 = /dev/scc0 First Z8530, first port 805 1 = /dev/scc1 First Z8530, second port 806 2 = /dev/scc2 Second Z8530, first port 807 3 = /dev/scc3 Second Z8530, second port 808 ... 809 810 In a previous version these devices were named 811 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so 812 on. 813 814 34 block Fourth IDE hard disk/CD-ROM interface 815 0 = /dev/hdg Master: whole disk (or CD-ROM) 816 64 = /dev/hdh Slave: whole disk (or CD-ROM) 817 818 Partitions are handled the same way as for the first 819 interface (see major number 3). 820 821 35 char tclmidi MIDI driver 822 0 = /dev/midi0 First MIDI port, kernel timed 823 1 = /dev/midi1 Second MIDI port, kernel timed 824 2 = /dev/midi2 Third MIDI port, kernel timed 825 3 = /dev/midi3 Fourth MIDI port, kernel timed 826 64 = /dev/rmidi0 First MIDI port, untimed 827 65 = /dev/rmidi1 Second MIDI port, untimed 828 66 = /dev/rmidi2 Third MIDI port, untimed 829 67 = /dev/rmidi3 Fourth MIDI port, untimed 830 128 = /dev/smpte0 First MIDI port, SMPTE timed 831 129 = /dev/smpte1 Second MIDI port, SMPTE timed 832 130 = /dev/smpte2 Third MIDI port, SMPTE timed 833 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed 834 835 35 block Slow memory ramdisk 836 0 = /dev/slram Slow memory ramdisk 837 838 36 char Netlink support 839 0 = /dev/route Routing, device updates, kernel to user 840 1 = /dev/skip enSKIP security cache control 841 3 = /dev/fwmonitor Firewall packet copies 842 16 = /dev/tap0 First Ethertap device 843 ... 844 31 = /dev/tap15 16th Ethertap device 845 846 36 block MCA ESDI hard disk 847 0 = /dev/eda First ESDI disk whole disk 848 64 = /dev/edb Second ESDI disk whole disk 849 ... 850 851 Partitions are handled in the same way as IDE disks 852 (see major number 3). 853 854 37 char IDE tape 855 0 = /dev/ht0 First IDE tape 856 1 = /dev/ht1 Second IDE tape 857 ... 858 128 = /dev/nht0 First IDE tape, no rewind-on-close 859 129 = /dev/nht1 Second IDE tape, no rewind-on-close 860 ... 861 862 Currently, only one IDE tape drive is supported. 863 864 37 block Zorro II ramdisk 865 0 = /dev/z2ram Zorro II ramdisk 866 867 38 char Myricom PCI Myrinet board 868 0 = /dev/mlanai0 First Myrinet board 869 1 = /dev/mlanai1 Second Myrinet board 870 ... 871 872 This device is used for status query, board control 873 and "user level packet I/O." This board is also 874 accessible as a standard networking "eth" device. 875 876 38 block OBSOLETE (was Linux/AP+) 877 878 39 char ML-16P experimental I/O board 879 0 = /dev/ml16pa-a0 First card, first analog channel 880 1 = /dev/ml16pa-a1 First card, second analog channel 881 ... 882 15 = /dev/ml16pa-a15 First card, 16th analog channel 883 16 = /dev/ml16pa-d First card, digital lines 884 17 = /dev/ml16pa-c0 First card, first counter/timer 885 18 = /dev/ml16pa-c1 First card, second counter/timer 886 19 = /dev/ml16pa-c2 First card, third counter/timer 887 32 = /dev/ml16pb-a0 Second card, first analog channel 888 33 = /dev/ml16pb-a1 Second card, second analog channel 889 ... 890 47 = /dev/ml16pb-a15 Second card, 16th analog channel 891 48 = /dev/ml16pb-d Second card, digital lines 892 49 = /dev/ml16pb-c0 Second card, first counter/timer 893 50 = /dev/ml16pb-c1 Second card, second counter/timer 894 51 = /dev/ml16pb-c2 Second card, third counter/timer 895 ... 896 39 block 897 898 40 char 899 900 40 block 901 902 41 char Yet Another Micro Monitor 903 0 = /dev/yamm Yet Another Micro Monitor 904 905 41 block 906 907 42 char Demo/sample use 908 909 42 block Demo/sample use 910 911 This number is intended for use in sample code, as 912 well as a general "example" device number. It 913 should never be used for a device driver that is being 914 distributed; either obtain an official number or use 915 the local/experimental range. The sudden addition or 916 removal of a driver with this number should not cause 917 ill effects to the system (bugs excepted.) 918 919 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A 920 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT. 921 922 43 char isdn4linux virtual modem 923 0 = /dev/ttyI0 First virtual modem 924 ... 925 63 = /dev/ttyI63 64th virtual modem 926 927 43 block Network block devices 928 0 = /dev/nb0 First network block device 929 1 = /dev/nb1 Second network block device 930 ... 931 932 Network Block Device is somehow similar to loopback 933 devices: If you read from it, it sends packet across 934 network asking server for data. If you write to it, it 935 sends packet telling server to write. It could be used 936 to mounting filesystems over the net, swapping over 937 the net, implementing block device in userland etc. 938 939 44 char isdn4linux virtual modem - alternate devices 940 0 = /dev/cui0 Callout device for ttyI0 941 ... 942 63 = /dev/cui63 Callout device for ttyI63 943 944 44 block Flash Translation Layer (FTL) filesystems 945 0 = /dev/ftla FTL on first Memory Technology Device 946 16 = /dev/ftlb FTL on second Memory Technology Device 947 32 = /dev/ftlc FTL on third Memory Technology Device 948 ... 949 240 = /dev/ftlp FTL on 16th Memory Technology Device 950 951 Partitions are handled in the same way as for IDE 952 disks (see major number 3) except that the partition 953 limit is 15 rather than 63 per disk (same as SCSI.) 954 955 45 char isdn4linux ISDN BRI driver 956 0 = /dev/isdn0 First virtual B channel raw data 957 ... 958 63 = /dev/isdn63 64th virtual B channel raw data 959 64 = /dev/isdnctrl0 First channel control/debug 960 ... 961 127 = /dev/isdnctrl63 64th channel control/debug 962 963 128 = /dev/ippp0 First SyncPPP device 964 ... 965 191 = /dev/ippp63 64th SyncPPP device 966 967 255 = /dev/isdninfo ISDN monitor interface 968 969 45 block Parallel port IDE disk devices 970 0 = /dev/pda First parallel port IDE disk 971 16 = /dev/pdb Second parallel port IDE disk 972 32 = /dev/pdc Third parallel port IDE disk 973 48 = /dev/pdd Fourth parallel port IDE disk 974 975 Partitions are handled in the same way as for IDE 976 disks (see major number 3) except that the partition 977 limit is 15 rather than 63 per disk. 978 979 46 char Comtrol Rocketport serial card 980 0 = /dev/ttyR0 First Rocketport port 981 1 = /dev/ttyR1 Second Rocketport port 982 ... 983 46 block Parallel port ATAPI CD-ROM devices 984 0 = /dev/pcd0 First parallel port ATAPI CD-ROM 985 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM 986 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM 987 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM 988 989 47 char Comtrol Rocketport serial card - alternate devices 990 0 = /dev/cur0 Callout device for ttyR0 991 1 = /dev/cur1 Callout device for ttyR1 992 ... 993 47 block Parallel port ATAPI disk devices 994 0 = /dev/pf0 First parallel port ATAPI disk 995 1 = /dev/pf1 Second parallel port ATAPI disk 996 2 = /dev/pf2 Third parallel port ATAPI disk 997 3 = /dev/pf3 Fourth parallel port ATAPI disk 998 999 This driver is intended for floppy disks and similar 1000 devices and hence does not support partitioning. 1001 1002 48 char SDL RISCom serial card 1003 0 = /dev/ttyL0 First RISCom port 1004 1 = /dev/ttyL1 Second RISCom port 1005 ... 1006 48 block Mylex DAC960 PCI RAID controller; first controller 1007 0 = /dev/rd/c0d0 First disk, whole disk 1008 8 = /dev/rd/c0d1 Second disk, whole disk 1009 ... 1010 248 = /dev/rd/c0d31 32nd disk, whole disk 1011 1012 For partitions add: 1013 0 = /dev/rd/c?d? Whole disk 1014 1 = /dev/rd/c?d?p1 First partition 1015 ... 1016 7 = /dev/rd/c?d?p7 Seventh partition 1017 1018 49 char SDL RISCom serial card - alternate devices 1019 0 = /dev/cul0 Callout device for ttyL0 1020 1 = /dev/cul1 Callout device for ttyL1 1021 ... 1022 49 block Mylex DAC960 PCI RAID controller; second controller 1023 0 = /dev/rd/c1d0 First disk, whole disk 1024 8 = /dev/rd/c1d1 Second disk, whole disk 1025 ... 1026 248 = /dev/rd/c1d31 32nd disk, whole disk 1027 1028 Partitions are handled as for major 48. 1029 1030 50 char Reserved for GLINT 1031 1032 50 block Mylex DAC960 PCI RAID controller; third controller 1033 0 = /dev/rd/c2d0 First disk, whole disk 1034 8 = /dev/rd/c2d1 Second disk, whole disk 1035 ... 1036 248 = /dev/rd/c2d31 32nd disk, whole disk 1037 1038 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem 1039 0 = /dev/bc0 First Baycom radio modem 1040 1 = /dev/bc1 Second Baycom radio modem 1041 ... 1042 51 block Mylex DAC960 PCI RAID controller; fourth controller 1043 0 = /dev/rd/c3d0 First disk, whole disk 1044 8 = /dev/rd/c3d1 Second disk, whole disk 1045 ... 1046 248 = /dev/rd/c3d31 32nd disk, whole disk 1047 1048 Partitions are handled as for major 48. 1049 1050 52 char Spellcaster DataComm/BRI ISDN card 1051 0 = /dev/dcbri0 First DataComm card 1052 1 = /dev/dcbri1 Second DataComm card 1053 2 = /dev/dcbri2 Third DataComm card 1054 3 = /dev/dcbri3 Fourth DataComm card 1055 1056 52 block Mylex DAC960 PCI RAID controller; fifth controller 1057 0 = /dev/rd/c4d0 First disk, whole disk 1058 8 = /dev/rd/c4d1 Second disk, whole disk 1059 ... 1060 248 = /dev/rd/c4d31 32nd disk, whole disk 1061 1062 Partitions are handled as for major 48. 1063 1064 53 char BDM interface for remote debugging MC683xx microcontrollers 1065 0 = /dev/pd_bdm0 PD BDM interface on lp0 1066 1 = /dev/pd_bdm1 PD BDM interface on lp1 1067 2 = /dev/pd_bdm2 PD BDM interface on lp2 1068 4 = /dev/icd_bdm0 ICD BDM interface on lp0 1069 5 = /dev/icd_bdm1 ICD BDM interface on lp1 1070 6 = /dev/icd_bdm2 ICD BDM interface on lp2 1071 1072 This device is used for the interfacing to the MC683xx 1073 microcontrollers via Background Debug Mode by use of a 1074 Parallel Port interface. PD is the Motorola Public 1075 Domain Interface and ICD is the commercial interface 1076 by P&E. 1077 1078 53 block Mylex DAC960 PCI RAID controller; sixth controller 1079 0 = /dev/rd/c5d0 First disk, whole disk 1080 8 = /dev/rd/c5d1 Second disk, whole disk 1081 ... 1082 248 = /dev/rd/c5d31 32nd disk, whole disk 1083 1084 Partitions are handled as for major 48. 1085 1086 54 char Electrocardiognosis Holter serial card 1087 0 = /dev/holter0 First Holter port 1088 1 = /dev/holter1 Second Holter port 1089 2 = /dev/holter2 Third Holter port 1090 1091 A custom serial card used by Electrocardiognosis SRL 1092 <mseritan@ottonel.pub.ro> to transfer data from Holter 1093 24-hour heart monitoring equipment. 1094 1095 54 block Mylex DAC960 PCI RAID controller; seventh controller 1096 0 = /dev/rd/c6d0 First disk, whole disk 1097 8 = /dev/rd/c6d1 Second disk, whole disk 1098 ... 1099 248 = /dev/rd/c6d31 32nd disk, whole disk 1100 1101 Partitions are handled as for major 48. 1102 1103 55 char DSP56001 digital signal processor 1104 0 = /dev/dsp56k First DSP56001 1105 1106 55 block Mylex DAC960 PCI RAID controller; eighth controller 1107 0 = /dev/rd/c7d0 First disk, whole disk 1108 8 = /dev/rd/c7d1 Second disk, whole disk 1109 ... 1110 248 = /dev/rd/c7d31 32nd disk, whole disk 1111 1112 Partitions are handled as for major 48. 1113 1114 56 char Apple Desktop Bus 1115 0 = /dev/adb ADB bus control 1116 1117 Additional devices will be added to this number, all 1118 starting with /dev/adb. 1119 1120 56 block Fifth IDE hard disk/CD-ROM interface 1121 0 = /dev/hdi Master: whole disk (or CD-ROM) 1122 64 = /dev/hdj Slave: whole disk (or CD-ROM) 1123 1124 Partitions are handled the same way as for the first 1125 interface (see major number 3). 1126 1127 57 char Hayes ESP serial card 1128 0 = /dev/ttyP0 First ESP port 1129 1 = /dev/ttyP1 Second ESP port 1130 ... 1131 1132 57 block Sixth IDE hard disk/CD-ROM interface 1133 0 = /dev/hdk Master: whole disk (or CD-ROM) 1134 64 = /dev/hdl Slave: whole disk (or CD-ROM) 1135 1136 Partitions are handled the same way as for the first 1137 interface (see major number 3). 1138 1139 58 char Hayes ESP serial card - alternate devices 1140 0 = /dev/cup0 Callout device for ttyP0 1141 1 = /dev/cup1 Callout device for ttyP1 1142 ... 1143 1144 58 block Reserved for logical volume manager 1145 1146 59 char sf firewall package 1147 0 = /dev/firewall Communication with sf kernel module 1148 1149 59 block Generic PDA filesystem device 1150 0 = /dev/pda0 First PDA device 1151 1 = /dev/pda1 Second PDA device 1152 ... 1153 1154 The pda devices are used to mount filesystems on 1155 remote pda's (basically slow handheld machines with 1156 proprietary OS's and limited memory and storage 1157 running small fs translation drivers) through serial / 1158 IRDA / parallel links. 1159 1160 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc 1161 1162 60-63 char LOCAL/EXPERIMENTAL USE 1163 1164 60-63 block LOCAL/EXPERIMENTAL USE 1165 Allocated for local/experimental use. For devices not 1166 assigned official numbers, these ranges should be 1167 used in order to avoid conflicting with future assignments. 1168 1169 64 char ENskip kernel encryption package 1170 0 = /dev/enskip Communication with ENskip kernel module 1171 1172 64 block Scramdisk/DriveCrypt encrypted devices 1173 0 = /dev/scramdisk/master Master node for ioctls 1174 1 = /dev/scramdisk/1 First encrypted device 1175 2 = /dev/scramdisk/2 Second encrypted device 1176 ... 1177 255 = /dev/scramdisk/255 255th encrypted device 1178 1179 The filename of the encrypted container and the passwords 1180 are sent via ioctls (using the sdmount tool) to the master 1181 node which then activates them via one of the 1182 /dev/scramdisk/x nodes for loop mounting (all handled 1183 through the sdmount tool). 1184 1185 Requested by: andy@scramdisklinux.org 1186 1187 65 char Sundance "plink" Transputer boards (obsolete, unused) 1188 0 = /dev/plink0 First plink device 1189 1 = /dev/plink1 Second plink device 1190 2 = /dev/plink2 Third plink device 1191 3 = /dev/plink3 Fourth plink device 1192 64 = /dev/rplink0 First plink device, raw 1193 65 = /dev/rplink1 Second plink device, raw 1194 66 = /dev/rplink2 Third plink device, raw 1195 67 = /dev/rplink3 Fourth plink device, raw 1196 128 = /dev/plink0d First plink device, debug 1197 129 = /dev/plink1d Second plink device, debug 1198 130 = /dev/plink2d Third plink device, debug 1199 131 = /dev/plink3d Fourth plink device, debug 1200 192 = /dev/rplink0d First plink device, raw, debug 1201 193 = /dev/rplink1d Second plink device, raw, debug 1202 194 = /dev/rplink2d Third plink device, raw, debug 1203 195 = /dev/rplink3d Fourth plink device, raw, debug 1204 1205 This is a commercial driver; contact James Howes 1206 <jth@prosig.demon.co.uk> for information. 1207 1208 65 block SCSI disk devices (16-31) 1209 0 = /dev/sdq 17th SCSI disk whole disk 1210 16 = /dev/sdr 18th SCSI disk whole disk 1211 32 = /dev/sds 19th SCSI disk whole disk 1212 ... 1213 240 = /dev/sdaf 32nd SCSI disk whole disk 1214 1215 Partitions are handled in the same way as for IDE 1216 disks (see major number 3) except that the limit on 1217 partitions is 15. 1218 1219 66 char YARC PowerPC PCI coprocessor card 1220 0 = /dev/yppcpci0 First YARC card 1221 1 = /dev/yppcpci1 Second YARC card 1222 ... 1223 1224 66 block SCSI disk devices (32-47) 1225 0 = /dev/sdag 33th SCSI disk whole disk 1226 16 = /dev/sdah 34th SCSI disk whole disk 1227 32 = /dev/sdai 35th SCSI disk whole disk 1228 ... 1229 240 = /dev/sdav 48nd SCSI disk whole disk 1230 1231 Partitions are handled in the same way as for IDE 1232 disks (see major number 3) except that the limit on 1233 partitions is 15. 1234 1235 67 char Coda network file system 1236 0 = /dev/cfs0 Coda cache manager 1237 1238 See http://www.coda.cs.cmu.edu for information about Coda. 1239 1240 67 block SCSI disk devices (48-63) 1241 0 = /dev/sdaw 49th SCSI disk whole disk 1242 16 = /dev/sdax 50th SCSI disk whole disk 1243 32 = /dev/sday 51st SCSI disk whole disk 1244 ... 1245 240 = /dev/sdbl 64th SCSI disk whole disk 1246 1247 Partitions are handled in the same way as for IDE 1248 disks (see major number 3) except that the limit on 1249 partitions is 15. 1250 1251 68 char CAPI 2.0 interface 1252 0 = /dev/capi20 Control device 1253 1 = /dev/capi20.00 First CAPI 2.0 application 1254 2 = /dev/capi20.01 Second CAPI 2.0 application 1255 ... 1256 20 = /dev/capi20.19 19th CAPI 2.0 application 1257 1258 ISDN CAPI 2.0 driver for use with CAPI 2.0 1259 applications; currently supports the AVM B1 card. 1260 1261 68 block SCSI disk devices (64-79) 1262 0 = /dev/sdbm 65th SCSI disk whole disk 1263 16 = /dev/sdbn 66th SCSI disk whole disk 1264 32 = /dev/sdbo 67th SCSI disk whole disk 1265 ... 1266 240 = /dev/sdcb 80th SCSI disk whole disk 1267 1268 Partitions are handled in the same way as for IDE 1269 disks (see major number 3) except that the limit on 1270 partitions is 15. 1271 1272 69 char MA16 numeric accelerator card 1273 0 = /dev/ma16 Board memory access 1274 1275 69 block SCSI disk devices (80-95) 1276 0 = /dev/sdcc 81st SCSI disk whole disk 1277 16 = /dev/sdcd 82nd SCSI disk whole disk 1278 32 = /dev/sdce 83th SCSI disk whole disk 1279 ... 1280 240 = /dev/sdcr 96th SCSI disk whole disk 1281 1282 Partitions are handled in the same way as for IDE 1283 disks (see major number 3) except that the limit on 1284 partitions is 15. 1285 1286 70 char SpellCaster Protocol Services Interface 1287 0 = /dev/apscfg Configuration interface 1288 1 = /dev/apsauth Authentication interface 1289 2 = /dev/apslog Logging interface 1290 3 = /dev/apsdbg Debugging interface 1291 64 = /dev/apsisdn ISDN command interface 1292 65 = /dev/apsasync Async command interface 1293 128 = /dev/apsmon Monitor interface 1294 1295 70 block SCSI disk devices (96-111) 1296 0 = /dev/sdcs 97th SCSI disk whole disk 1297 16 = /dev/sdct 98th SCSI disk whole disk 1298 32 = /dev/sdcu 99th SCSI disk whole disk 1299 ... 1300 240 = /dev/sddh 112nd SCSI disk whole disk 1301 1302 Partitions are handled in the same way as for IDE 1303 disks (see major number 3) except that the limit on 1304 partitions is 15. 1305 1306 71 char Computone IntelliPort II serial card 1307 0 = /dev/ttyF0 IntelliPort II board 0, port 0 1308 1 = /dev/ttyF1 IntelliPort II board 0, port 1 1309 ... 1310 63 = /dev/ttyF63 IntelliPort II board 0, port 63 1311 64 = /dev/ttyF64 IntelliPort II board 1, port 0 1312 65 = /dev/ttyF65 IntelliPort II board 1, port 1 1313 ... 1314 127 = /dev/ttyF127 IntelliPort II board 1, port 63 1315 128 = /dev/ttyF128 IntelliPort II board 2, port 0 1316 129 = /dev/ttyF129 IntelliPort II board 2, port 1 1317 ... 1318 191 = /dev/ttyF191 IntelliPort II board 2, port 63 1319 192 = /dev/ttyF192 IntelliPort II board 3, port 0 1320 193 = /dev/ttyF193 IntelliPort II board 3, port 1 1321 ... 1322 255 = /dev/ttyF255 IntelliPort II board 3, port 63 1323 1324 71 block SCSI disk devices (112-127) 1325 0 = /dev/sddi 113th SCSI disk whole disk 1326 16 = /dev/sddj 114th SCSI disk whole disk 1327 32 = /dev/sddk 115th SCSI disk whole disk 1328 ... 1329 240 = /dev/sddx 128th SCSI disk whole disk 1330 1331 Partitions are handled in the same way as for IDE 1332 disks (see major number 3) except that the limit on 1333 partitions is 15. 1334 1335 72 char Computone IntelliPort II serial card - alternate devices 1336 0 = /dev/cuf0 Callout device for ttyF0 1337 1 = /dev/cuf1 Callout device for ttyF1 1338 ... 1339 63 = /dev/cuf63 Callout device for ttyF63 1340 64 = /dev/cuf64 Callout device for ttyF64 1341 65 = /dev/cuf65 Callout device for ttyF65 1342 ... 1343 127 = /dev/cuf127 Callout device for ttyF127 1344 128 = /dev/cuf128 Callout device for ttyF128 1345 129 = /dev/cuf129 Callout device for ttyF129 1346 ... 1347 191 = /dev/cuf191 Callout device for ttyF191 1348 192 = /dev/cuf192 Callout device for ttyF192 1349 193 = /dev/cuf193 Callout device for ttyF193 1350 ... 1351 255 = /dev/cuf255 Callout device for ttyF255 1352 1353 72 block Compaq Intelligent Drive Array, first controller 1354 0 = /dev/ida/c0d0 First logical drive whole disk 1355 16 = /dev/ida/c0d1 Second logical drive whole disk 1356 ... 1357 240 = /dev/ida/c0d15 16th logical drive whole disk 1358 1359 Partitions are handled the same way as for Mylex 1360 DAC960 (see major number 48) except that the limit on 1361 partitions is 15. 1362 1363 73 char Computone IntelliPort II serial card - control devices 1364 0 = /dev/ip2ipl0 Loadware device for board 0 1365 1 = /dev/ip2stat0 Status device for board 0 1366 4 = /dev/ip2ipl1 Loadware device for board 1 1367 5 = /dev/ip2stat1 Status device for board 1 1368 8 = /dev/ip2ipl2 Loadware device for board 2 1369 9 = /dev/ip2stat2 Status device for board 2 1370 12 = /dev/ip2ipl3 Loadware device for board 3 1371 13 = /dev/ip2stat3 Status device for board 3 1372 1373 73 block Compaq Intelligent Drive Array, second controller 1374 0 = /dev/ida/c1d0 First logical drive whole disk 1375 16 = /dev/ida/c1d1 Second logical drive whole disk 1376 ... 1377 240 = /dev/ida/c1d15 16th logical drive whole disk 1378 1379 Partitions are handled the same way as for Mylex 1380 DAC960 (see major number 48) except that the limit on 1381 partitions is 15. 1382 1383 74 char SCI bridge 1384 0 = /dev/SCI/0 SCI device 0 1385 1 = /dev/SCI/1 SCI device 1 1386 ... 1387 1388 Currently for Dolphin Interconnect Solutions' PCI-SCI 1389 bridge. 1390 1391 74 block Compaq Intelligent Drive Array, third controller 1392 0 = /dev/ida/c2d0 First logical drive whole disk 1393 16 = /dev/ida/c2d1 Second logical drive whole disk 1394 ... 1395 240 = /dev/ida/c2d15 16th logical drive whole disk 1396 1397 Partitions are handled the same way as for Mylex 1398 DAC960 (see major number 48) except that the limit on 1399 partitions is 15. 1400 1401 75 char Specialix IO8+ serial card 1402 0 = /dev/ttyW0 First IO8+ port, first card 1403 1 = /dev/ttyW1 Second IO8+ port, first card 1404 ... 1405 8 = /dev/ttyW8 First IO8+ port, second card 1406 ... 1407 1408 75 block Compaq Intelligent Drive Array, fourth controller 1409 0 = /dev/ida/c3d0 First logical drive whole disk 1410 16 = /dev/ida/c3d1 Second logical drive whole disk 1411 ... 1412 240 = /dev/ida/c3d15 16th logical drive whole disk 1413 1414 Partitions are handled the same way as for Mylex 1415 DAC960 (see major number 48) except that the limit on 1416 partitions is 15. 1417 1418 76 char Specialix IO8+ serial card - alternate devices 1419 0 = /dev/cuw0 Callout device for ttyW0 1420 1 = /dev/cuw1 Callout device for ttyW1 1421 ... 1422 8 = /dev/cuw8 Callout device for ttyW8 1423 ... 1424 1425 76 block Compaq Intelligent Drive Array, fifth controller 1426 0 = /dev/ida/c4d0 First logical drive whole disk 1427 16 = /dev/ida/c4d1 Second logical drive whole disk 1428 ... 1429 240 = /dev/ida/c4d15 16th logical drive whole disk 1430 1431 Partitions are handled the same way as for Mylex 1432 DAC960 (see major number 48) except that the limit on 1433 partitions is 15. 1434 1435 1436 77 char ComScire Quantum Noise Generator 1437 0 = /dev/qng ComScire Quantum Noise Generator 1438 1439 77 block Compaq Intelligent Drive Array, sixth controller 1440 0 = /dev/ida/c5d0 First logical drive whole disk 1441 16 = /dev/ida/c5d1 Second logical drive whole disk 1442 ... 1443 240 = /dev/ida/c5d15 16th logical drive whole disk 1444 1445 Partitions are handled the same way as for Mylex 1446 DAC960 (see major number 48) except that the limit on 1447 partitions is 15. 1448 1449 78 char PAM Software's multimodem boards 1450 0 = /dev/ttyM0 First PAM modem 1451 1 = /dev/ttyM1 Second PAM modem 1452 ... 1453 1454 78 block Compaq Intelligent Drive Array, seventh controller 1455 0 = /dev/ida/c6d0 First logical drive whole disk 1456 16 = /dev/ida/c6d1 Second logical drive whole disk 1457 ... 1458 240 = /dev/ida/c6d15 16th logical drive whole disk 1459 1460 Partitions are handled the same way as for Mylex 1461 DAC960 (see major number 48) except that the limit on 1462 partitions is 15. 1463 1464 79 char PAM Software's multimodem boards - alternate devices 1465 0 = /dev/cum0 Callout device for ttyM0 1466 1 = /dev/cum1 Callout device for ttyM1 1467 ... 1468 1469 79 block Compaq Intelligent Drive Array, eighth controller 1470 0 = /dev/ida/c7d0 First logical drive whole disk 1471 16 = /dev/ida/c7d1 Second logical drive whole disk 1472 ... 1473 240 = /dev/ida/c715 16th logical drive whole disk 1474 1475 Partitions are handled the same way as for Mylex 1476 DAC960 (see major number 48) except that the limit on 1477 partitions is 15. 1478 1479 80 char Photometrics AT200 CCD camera 1480 0 = /dev/at200 Photometrics AT200 CCD camera 1481 1482 80 block I2O hard disk 1483 0 = /dev/i2o/hda First I2O hard disk, whole disk 1484 16 = /dev/i2o/hdb Second I2O hard disk, whole disk 1485 ... 1486 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk 1487 1488 Partitions are handled in the same way as for IDE 1489 disks (see major number 3) except that the limit on 1490 partitions is 15. 1491 1492 81 char video4linux 1493 0 = /dev/video0 Video capture/overlay device 1494 ... 1495 63 = /dev/video63 Video capture/overlay device 1496 64 = /dev/radio0 Radio device 1497 ... 1498 127 = /dev/radio63 Radio device 1499 224 = /dev/vbi0 Vertical blank interrupt 1500 ... 1501 255 = /dev/vbi31 Vertical blank interrupt 1502 1503 81 block I2O hard disk 1504 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk 1505 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk 1506 ... 1507 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk 1508 1509 Partitions are handled in the same way as for IDE 1510 disks (see major number 3) except that the limit on 1511 partitions is 15. 1512 1513 82 char WiNRADiO communications receiver card 1514 0 = /dev/winradio0 First WiNRADiO card 1515 1 = /dev/winradio1 Second WiNRADiO card 1516 ... 1517 1518 The driver and documentation may be obtained from 1519 http://www.winradio.com/ 1520 1521 82 block I2O hard disk 1522 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk 1523 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk 1524 ... 1525 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk 1526 1527 Partitions are handled in the same way as for IDE 1528 disks (see major number 3) except that the limit on 1529 partitions is 15. 1530 1531 83 char Matrox mga_vid video driver 1532 0 = /dev/mga_vid0 1st video card 1533 1 = /dev/mga_vid1 2nd video card 1534 2 = /dev/mga_vid2 3rd video card 1535 ... 1536 15 = /dev/mga_vid15 16th video card 1537 1538 83 block I2O hard disk 1539 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk 1540 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk 1541 ... 1542 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk 1543 1544 Partitions are handled in the same way as for IDE 1545 disks (see major number 3) except that the limit on 1546 partitions is 15. 1547 1548 84 char Ikon 1011[57] Versatec Greensheet Interface 1549 0 = /dev/ihcp0 First Greensheet port 1550 1 = /dev/ihcp1 Second Greensheet port 1551 1552 84 block I2O hard disk 1553 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk 1554 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk 1555 ... 1556 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk 1557 1558 Partitions are handled in the same way as for IDE 1559 disks (see major number 3) except that the limit on 1560 partitions is 15. 1561 1562 85 char Linux/SGI shared memory input queue 1563 0 = /dev/shmiq Master shared input queue 1564 1 = /dev/qcntl0 First device pushed 1565 2 = /dev/qcntl1 Second device pushed 1566 ... 1567 1568 85 block I2O hard disk 1569 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk 1570 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk 1571 ... 1572 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk 1573 1574 Partitions are handled in the same way as for IDE 1575 disks (see major number 3) except that the limit on 1576 partitions is 15. 1577 1578 86 char SCSI media changer 1579 0 = /dev/sch0 First SCSI media changer 1580 1 = /dev/sch1 Second SCSI media changer 1581 ... 1582 1583 86 block I2O hard disk 1584 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk 1585 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk 1586 ... 1587 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk 1588 1589 Partitions are handled in the same way as for IDE 1590 disks (see major number 3) except that the limit on 1591 partitions is 15. 1592 1593 87 char Sony Control-A1 stereo control bus 1594 0 = /dev/controla0 First device on chain 1595 1 = /dev/controla1 Second device on chain 1596 ... 1597 1598 87 block I2O hard disk 1599 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk 1600 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk 1601 ... 1602 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk 1603 1604 Partitions are handled in the same way as for IDE 1605 disks (see major number 3) except that the limit on 1606 partitions is 15. 1607 1608 88 char COMX synchronous serial card 1609 0 = /dev/comx0 COMX channel 0 1610 1 = /dev/comx1 COMX channel 1 1611 ... 1612 1613 88 block Seventh IDE hard disk/CD-ROM interface 1614 0 = /dev/hdm Master: whole disk (or CD-ROM) 1615 64 = /dev/hdn Slave: whole disk (or CD-ROM) 1616 1617 Partitions are handled the same way as for the first 1618 interface (see major number 3). 1619 1620 89 char I2C bus interface 1621 0 = /dev/i2c-0 First I2C adapter 1622 1 = /dev/i2c-1 Second I2C adapter 1623 ... 1624 1625 89 block Eighth IDE hard disk/CD-ROM interface 1626 0 = /dev/hdo Master: whole disk (or CD-ROM) 1627 64 = /dev/hdp Slave: whole disk (or CD-ROM) 1628 1629 Partitions are handled the same way as for the first 1630 interface (see major number 3). 1631 1632 90 char Memory Technology Device (RAM, ROM, Flash) 1633 0 = /dev/mtd0 First MTD (rw) 1634 1 = /dev/mtdr0 First MTD (ro) 1635 ... 1636 30 = /dev/mtd15 16th MTD (rw) 1637 31 = /dev/mtdr15 16th MTD (ro) 1638 1639 90 block Ninth IDE hard disk/CD-ROM interface 1640 0 = /dev/hdq Master: whole disk (or CD-ROM) 1641 64 = /dev/hdr Slave: whole disk (or CD-ROM) 1642 1643 Partitions are handled the same way as for the first 1644 interface (see major number 3). 1645 1646 91 char CAN-Bus devices 1647 0 = /dev/can0 First CAN-Bus controller 1648 1 = /dev/can1 Second CAN-Bus controller 1649 ... 1650 1651 91 block Tenth IDE hard disk/CD-ROM interface 1652 0 = /dev/hds Master: whole disk (or CD-ROM) 1653 64 = /dev/hdt Slave: whole disk (or CD-ROM) 1654 1655 Partitions are handled the same way as for the first 1656 interface (see major number 3). 1657 1658 92 char Reserved for ith Kommunikationstechnik MIC ISDN card 1659 1660 92 block PPDD encrypted disk driver 1661 0 = /dev/ppdd0 First encrypted disk 1662 1 = /dev/ppdd1 Second encrypted disk 1663 ... 1664 1665 Partitions are handled in the same way as for IDE 1666 disks (see major number 3) except that the limit on 1667 partitions is 15. 1668 1669 93 char 1670 1671 93 block NAND Flash Translation Layer filesystem 1672 0 = /dev/nftla First NFTL layer 1673 16 = /dev/nftlb Second NFTL layer 1674 ... 1675 240 = /dev/nftlp 16th NTFL layer 1676 1677 94 char 1678 1679 94 block IBM S/390 DASD block storage 1680 0 = /dev/dasda First DASD device, major 1681 1 = /dev/dasda1 First DASD device, block 1 1682 2 = /dev/dasda2 First DASD device, block 2 1683 3 = /dev/dasda3 First DASD device, block 3 1684 4 = /dev/dasdb Second DASD device, major 1685 5 = /dev/dasdb1 Second DASD device, block 1 1686 6 = /dev/dasdb2 Second DASD device, block 2 1687 7 = /dev/dasdb3 Second DASD device, block 3 1688 ... 1689 1690 95 char IP filter 1691 0 = /dev/ipl Filter control device/log file 1692 1 = /dev/ipnat NAT control device/log file 1693 2 = /dev/ipstate State information log file 1694 3 = /dev/ipauth Authentication control device/log file 1695 ... 1696 1697 96 char Parallel port ATAPI tape devices 1698 0 = /dev/pt0 First parallel port ATAPI tape 1699 1 = /dev/pt1 Second parallel port ATAPI tape 1700 ... 1701 128 = /dev/npt0 First p.p. ATAPI tape, no rewind 1702 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind 1703 ... 1704 1705 96 block Inverse NAND Flash Translation Layer 1706 0 = /dev/inftla First INFTL layer 1707 16 = /dev/inftlb Second INFTL layer 1708 ... 1709 240 = /dev/inftlp 16th INTFL layer 1710 1711 97 char Parallel port generic ATAPI interface 1712 0 = /dev/pg0 First parallel port ATAPI device 1713 1 = /dev/pg1 Second parallel port ATAPI device 1714 2 = /dev/pg2 Third parallel port ATAPI device 1715 3 = /dev/pg3 Fourth parallel port ATAPI device 1716 1717 These devices support the same API as the generic SCSI 1718 devices. 1719 1720 98 char Control and Measurement Device (comedi) 1721 0 = /dev/comedi0 First comedi device 1722 1 = /dev/comedi1 Second comedi device 1723 ... 1724 1725 See http://stm.lbl.gov/comedi. 1726 1727 98 block User-mode virtual block device 1728 0 = /dev/ubda First user-mode block device 1729 16 = /dev/udbb Second user-mode block device 1730 ... 1731 1732 Partitions are handled in the same way as for IDE 1733 disks (see major number 3) except that the limit on 1734 partitions is 15. 1735 1736 This device is used by the user-mode virtual kernel port. 1737 1738 99 char Raw parallel ports 1739 0 = /dev/parport0 First parallel port 1740 1 = /dev/parport1 Second parallel port 1741 ... 1742 1743 99 block JavaStation flash disk 1744 0 = /dev/jsfd JavaStation flash disk 1745 1746 100 char Telephony for Linux 1747 0 = /dev/phone0 First telephony device 1748 1 = /dev/phone1 Second telephony device 1749 ... 1750 1751 101 char Motorola DSP 56xxx board 1752 0 = /dev/mdspstat Status information 1753 1 = /dev/mdsp1 First DSP board I/O controls 1754 ... 1755 16 = /dev/mdsp16 16th DSP board I/O controls 1756 1757 101 block AMI HyperDisk RAID controller 1758 0 = /dev/amiraid/ar0 First array whole disk 1759 16 = /dev/amiraid/ar1 Second array whole disk 1760 ... 1761 240 = /dev/amiraid/ar15 16th array whole disk 1762 1763 For each device, partitions are added as: 1764 0 = /dev/amiraid/ar? Whole disk 1765 1 = /dev/amiraid/ar?p1 First partition 1766 2 = /dev/amiraid/ar?p2 Second partition 1767 ... 1768 15 = /dev/amiraid/ar?p15 15th partition 1769 1770 102 char 1771 1772 102 block Compressed block device 1773 0 = /dev/cbd/a First compressed block device, whole device 1774 16 = /dev/cbd/b Second compressed block device, whole device 1775 ... 1776 240 = /dev/cbd/p 16th compressed block device, whole device 1777 1778 Partitions are handled in the same way as for IDE 1779 disks (see major number 3) except that the limit on 1780 partitions is 15. 1781 1782 103 char Arla network file system 1783 0 = /dev/nnpfs0 First NNPFS device 1784 1 = /dev/nnpfs1 Second NNPFS device 1785 1786 Arla is a free clone of the Andrew File System, AFS. 1787 The NNPFS device gives user mode filesystem 1788 implementations a kernel presence for caching and easy 1789 mounting. For more information about the project, 1790 write to <arla-drinkers@stacken.kth.se> or see 1791 http://www.stacken.kth.se/project/arla/ 1792 1793 103 block Audit device 1794 0 = /dev/audit Audit device 1795 1796 104 char Flash BIOS support 1797 1798 104 block Compaq Next Generation Drive Array, first controller 1799 0 = /dev/cciss/c0d0 First logical drive, whole disk 1800 16 = /dev/cciss/c0d1 Second logical drive, whole disk 1801 ... 1802 240 = /dev/cciss/c0d15 16th logical drive, whole disk 1803 1804 Partitions are handled the same way as for Mylex 1805 DAC960 (see major number 48) except that the limit on 1806 partitions is 15. 1807 1808 105 char Comtrol VS-1000 serial controller 1809 0 = /dev/ttyV0 First VS-1000 port 1810 1 = /dev/ttyV1 Second VS-1000 port 1811 ... 1812 1813 105 block Compaq Next Generation Drive Array, second controller 1814 0 = /dev/cciss/c1d0 First logical drive, whole disk 1815 16 = /dev/cciss/c1d1 Second logical drive, whole disk 1816 ... 1817 240 = /dev/cciss/c1d15 16th logical drive, whole disk 1818 1819 Partitions are handled the same way as for Mylex 1820 DAC960 (see major number 48) except that the limit on 1821 partitions is 15. 1822 1823 106 char Comtrol VS-1000 serial controller - alternate devices 1824 0 = /dev/cuv0 First VS-1000 port 1825 1 = /dev/cuv1 Second VS-1000 port 1826 ... 1827 1828 106 block Compaq Next Generation Drive Array, third controller 1829 0 = /dev/cciss/c2d0 First logical drive, whole disk 1830 16 = /dev/cciss/c2d1 Second logical drive, whole disk 1831 ... 1832 240 = /dev/cciss/c2d15 16th logical drive, whole disk 1833 1834 Partitions are handled the same way as for Mylex 1835 DAC960 (see major number 48) except that the limit on 1836 partitions is 15. 1837 1838 107 char 3Dfx Voodoo Graphics device 1839 0 = /dev/3dfx Primary 3Dfx graphics device 1840 1841 107 block Compaq Next Generation Drive Array, fourth controller 1842 0 = /dev/cciss/c3d0 First logical drive, whole disk 1843 16 = /dev/cciss/c3d1 Second logical drive, whole disk 1844 ... 1845 240 = /dev/cciss/c3d15 16th logical drive, whole disk 1846 1847 Partitions are handled the same way as for Mylex 1848 DAC960 (see major number 48) except that the limit on 1849 partitions is 15. 1850 1851 108 char Device independent PPP interface 1852 0 = /dev/ppp Device independent PPP interface 1853 1854 108 block Compaq Next Generation Drive Array, fifth controller 1855 0 = /dev/cciss/c4d0 First logical drive, whole disk 1856 16 = /dev/cciss/c4d1 Second logical drive, whole disk 1857 ... 1858 240 = /dev/cciss/c4d15 16th logical drive, whole disk 1859 1860 Partitions are handled the same way as for Mylex 1861 DAC960 (see major number 48) except that the limit on 1862 partitions is 15. 1863 1864 109 char Reserved for logical volume manager 1865 1866 109 block Compaq Next Generation Drive Array, sixth controller 1867 0 = /dev/cciss/c5d0 First logical drive, whole disk 1868 16 = /dev/cciss/c5d1 Second logical drive, whole disk 1869 ... 1870 240 = /dev/cciss/c5d15 16th logical drive, whole disk 1871 1872 Partitions are handled the same way as for Mylex 1873 DAC960 (see major number 48) except that the limit on 1874 partitions is 15. 1875 1876 110 char miroMEDIA Surround board 1877 0 = /dev/srnd0 First miroMEDIA Surround board 1878 1 = /dev/srnd1 Second miroMEDIA Surround board 1879 ... 1880 1881 110 block Compaq Next Generation Drive Array, seventh controller 1882 0 = /dev/cciss/c6d0 First logical drive, whole disk 1883 16 = /dev/cciss/c6d1 Second logical drive, whole disk 1884 ... 1885 240 = /dev/cciss/c6d15 16th logical drive, whole disk 1886 1887 Partitions are handled the same way as for Mylex 1888 DAC960 (see major number 48) except that the limit on 1889 partitions is 15. 1890 1891 111 char 1892 1893 111 block Compaq Next Generation Drive Array, eighth controller 1894 0 = /dev/cciss/c7d0 First logical drive, whole disk 1895 16 = /dev/cciss/c7d1 Second logical drive, whole disk 1896 ... 1897 240 = /dev/cciss/c7d15 16th logical drive, whole disk 1898 1899 Partitions are handled the same way as for Mylex 1900 DAC960 (see major number 48) except that the limit on 1901 partitions is 15. 1902 1903 112 char ISI serial card 1904 0 = /dev/ttyM0 First ISI port 1905 1 = /dev/ttyM1 Second ISI port 1906 ... 1907 1908 There is currently a device-naming conflict between 1909 these and PAM multimodems (major 78). 1910 1911 112 block IBM iSeries virtual disk 1912 0 = /dev/iseries/vda First virtual disk, whole disk 1913 8 = /dev/iseries/vdb Second virtual disk, whole disk 1914 ... 1915 200 = /dev/iseries/vdz 26th virtual disk, whole disk 1916 208 = /dev/iseries/vdaa 27th virtual disk, whole disk 1917 ... 1918 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk 1919 1920 Partitions are handled in the same way as for IDE 1921 disks (see major number 3) except that the limit on 1922 partitions is 7. 1923 1924 113 char ISI serial card - alternate devices 1925 0 = /dev/cum0 Callout device for ttyM0 1926 1 = /dev/cum1 Callout device for ttyM1 1927 ... 1928 1929 113 block IBM iSeries virtual CD-ROM 1930 0 = /dev/iseries/vcda First virtual CD-ROM 1931 1 = /dev/iseries/vcdb Second virtual CD-ROM 1932 ... 1933 1934 114 char Picture Elements ISE board 1935 0 = /dev/ise0 First ISE board 1936 1 = /dev/ise1 Second ISE board 1937 ... 1938 128 = /dev/isex0 Control node for first ISE board 1939 129 = /dev/isex1 Control node for second ISE board 1940 ... 1941 1942 The ISE board is an embedded computer, optimized for 1943 image processing. The /dev/iseN nodes are the general 1944 I/O access to the board, the /dev/isex0 nodes command 1945 nodes used to control the board. 1946 1947 114 block IDE BIOS powered software RAID interfaces such as the 1948 Promise Fastrak 1949 1950 0 = /dev/ataraid/d0 1951 1 = /dev/ataraid/d0p1 1952 2 = /dev/ataraid/d0p2 1953 ... 1954 16 = /dev/ataraid/d1 1955 17 = /dev/ataraid/d1p1 1956 18 = /dev/ataraid/d1p2 1957 ... 1958 255 = /dev/ataraid/d15p15 1959 1960 Partitions are handled in the same way as for IDE 1961 disks (see major number 3) except that the limit on 1962 partitions is 15. 1963 1964 115 char TI link cable devices (115 was formerly the console driver speaker) 1965 0 = /dev/tipar0 Parallel cable on first parallel port 1966 ... 1967 7 = /dev/tipar7 Parallel cable on seventh parallel port 1968 1969 8 = /dev/tiser0 Serial cable on first serial port 1970 ... 1971 15 = /dev/tiser7 Serial cable on seventh serial port 1972 1973 16 = /dev/tiusb0 First USB cable 1974 ... 1975 47 = /dev/tiusb31 32nd USB cable 1976 1977 115 block NetWare (NWFS) Devices (0-255) 1978 1979 The NWFS (NetWare) devices are used to present a 1980 collection of NetWare Mirror Groups or NetWare 1981 Partitions as a logical storage segment for 1982 use in mounting NetWare volumes. A maximum of 1983 256 NetWare volumes can be supported in a single 1984 machine. 1985 1986 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/ 1987 1988 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume 1989 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume 1990 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume 1991 ... 1992 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume 1993 1994 116 char Advanced Linux Sound Driver (ALSA) 1995 1996 116 block MicroMemory battery backed RAM adapter (NVRAM) 1997 Supports 16 boards, 15 partitions each. 1998 Requested by neilb at cse.unsw.edu.au. 1999 2000 0 = /dev/umem/d0 Whole of first board 2001 1 = /dev/umem/d0p1 First partition of first board 2002 2 = /dev/umem/d0p2 Second partition of first board 2003 15 = /dev/umem/d0p15 15th partition of first board 2004 2005 16 = /dev/umem/d1 Whole of second board 2006 17 = /dev/umem/d1p1 First partition of second board 2007 ... 2008 255= /dev/umem/d15p15 15th partition of 16th board. 2009 2010 117 char COSA/SRP synchronous serial card 2011 0 = /dev/cosa0c0 1st board, 1st channel 2012 1 = /dev/cosa0c1 1st board, 2nd channel 2013 ... 2014 16 = /dev/cosa1c0 2nd board, 1st channel 2015 17 = /dev/cosa1c1 2nd board, 2nd channel 2016 ... 2017 2018 117 block Enterprise Volume Management System (EVMS) 2019 2020 The EVMS driver uses a layered, plug-in model to provide 2021 unparalleled flexibility and extensibility in managing 2022 storage. This allows for easy expansion or customization 2023 of various levels of volume management. Requested by 2024 Mark Peloquin (peloquin at us.ibm.com). 2025 2026 Note: EVMS populates and manages all the devnodes in 2027 /dev/evms. 2028 2029 http://sf.net/projects/evms 2030 2031 0 = /dev/evms/block_device EVMS block device 2032 1 = /dev/evms/legacyname1 First EVMS legacy device 2033 2 = /dev/evms/legacyname2 Second EVMS legacy device 2034 ... 2035 Both ranges can grow (down or up) until they meet. 2036 ... 2037 254 = /dev/evms/EVMSname2 Second EVMS native device 2038 255 = /dev/evms/EVMSname1 First EVMS native device 2039 2040 Note: legacyname(s) are derived from the normal legacy 2041 device names. For example, /dev/hda5 would become 2042 /dev/evms/hda5. 2043 2044 118 char IBM Cryptographic Accelerator 2045 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators 2046 1 = /dev/ica0 IBMCA Device 0 2047 2 = /dev/ica1 IBMCA Device 1 2048 ... 2049 2050 119 char VMware virtual network control 2051 0 = /dev/vnet0 1st virtual network 2052 1 = /dev/vnet1 2nd virtual network 2053 ... 2054 2055 120-127 char LOCAL/EXPERIMENTAL USE 2056 2057 120-127 block LOCAL/EXPERIMENTAL USE 2058 Allocated for local/experimental use. For devices not 2059 assigned official numbers, these ranges should be 2060 used in order to avoid conflicting with future assignments. 2061 2062 128-135 char Unix98 PTY masters 2063 2064 These devices should not have corresponding device 2065 nodes; instead they should be accessed through the 2066 /dev/ptmx cloning interface. 2067 2068 128 block SCSI disk devices (128-143) 2069 0 = /dev/sddy 129th SCSI disk whole disk 2070 16 = /dev/sddz 130th SCSI disk whole disk 2071 32 = /dev/sdea 131th SCSI disk whole disk 2072 ... 2073 240 = /dev/sden 144th SCSI disk whole disk 2074 2075 Partitions are handled in the same way as for IDE 2076 disks (see major number 3) except that the limit on 2077 partitions is 15. 2078 2079 129 block SCSI disk devices (144-159) 2080 0 = /dev/sdeo 145th SCSI disk whole disk 2081 16 = /dev/sdep 146th SCSI disk whole disk 2082 32 = /dev/sdeq 147th SCSI disk whole disk 2083 ... 2084 240 = /dev/sdfd 160th SCSI disk whole disk 2085 2086 Partitions are handled in the same way as for IDE 2087 disks (see major number 3) except that the limit on 2088 partitions is 15. 2089 2090 130 char (Misc devices) 2091 2092 130 block SCSI disk devices (160-175) 2093 0 = /dev/sdfe 161st SCSI disk whole disk 2094 16 = /dev/sdff 162nd SCSI disk whole disk 2095 32 = /dev/sdfg 163rd SCSI disk whole disk 2096 ... 2097 240 = /dev/sdft 176th SCSI disk whole disk 2098 2099 Partitions are handled in the same way as for IDE 2100 disks (see major number 3) except that the limit on 2101 partitions is 15. 2102 2103 131 block SCSI disk devices (176-191) 2104 0 = /dev/sdfu 177th SCSI disk whole disk 2105 16 = /dev/sdfv 178th SCSI disk whole disk 2106 32 = /dev/sdfw 179th SCSI disk whole disk 2107 ... 2108 240 = /dev/sdgj 192nd SCSI disk whole disk 2109 2110 Partitions are handled in the same way as for IDE 2111 disks (see major number 3) except that the limit on 2112 partitions is 15. 2113 2114 132 block SCSI disk devices (192-207) 2115 0 = /dev/sdgk 193rd SCSI disk whole disk 2116 16 = /dev/sdgl 194th SCSI disk whole disk 2117 32 = /dev/sdgm 195th SCSI disk whole disk 2118 ... 2119 240 = /dev/sdgz 208th SCSI disk whole disk 2120 2121 Partitions are handled in the same way as for IDE 2122 disks (see major number 3) except that the limit on 2123 partitions is 15. 2124 2125 133 block SCSI disk devices (208-223) 2126 0 = /dev/sdha 209th SCSI disk whole disk 2127 16 = /dev/sdhb 210th SCSI disk whole disk 2128 32 = /dev/sdhc 211th SCSI disk whole disk 2129 ... 2130 240 = /dev/sdhp 224th SCSI disk whole disk 2131 2132 Partitions are handled in the same way as for IDE 2133 disks (see major number 3) except that the limit on 2134 partitions is 15. 2135 2136 134 block SCSI disk devices (224-239) 2137 0 = /dev/sdhq 225th SCSI disk whole disk 2138 16 = /dev/sdhr 226th SCSI disk whole disk 2139 32 = /dev/sdhs 227th SCSI disk whole disk 2140 ... 2141 240 = /dev/sdif 240th SCSI disk whole disk 2142 2143 Partitions are handled in the same way as for IDE 2144 disks (see major number 3) except that the limit on 2145 partitions is 15. 2146 2147 135 block SCSI disk devices (240-255) 2148 0 = /dev/sdig 241st SCSI disk whole disk 2149 16 = /dev/sdih 242nd SCSI disk whole disk 2150 32 = /dev/sdih 243rd SCSI disk whole disk 2151 ... 2152 240 = /dev/sdiv 256th SCSI disk whole disk 2153 2154 Partitions are handled in the same way as for IDE 2155 disks (see major number 3) except that the limit on 2156 partitions is 15. 2157 2158 136-143 char Unix98 PTY slaves 2159 0 = /dev/pts/0 First Unix98 pseudo-TTY 2160 1 = /dev/pts/1 Second Unix98 pseudo-TTY 2161 ... 2162 2163 These device nodes are automatically generated with 2164 the proper permissions and modes by mounting the 2165 devpts filesystem onto /dev/pts with the appropriate 2166 mount options (distribution dependent, however, on 2167 *most* distributions the appropriate options are 2168 "mode=0620,gid=<gid of the "tty" group>".) 2169 2170 136 block Mylex DAC960 PCI RAID controller; ninth controller 2171 0 = /dev/rd/c8d0 First disk, whole disk 2172 8 = /dev/rd/c8d1 Second disk, whole disk 2173 ... 2174 248 = /dev/rd/c8d31 32nd disk, whole disk 2175 2176 Partitions are handled as for major 48. 2177 2178 137 block Mylex DAC960 PCI RAID controller; tenth controller 2179 0 = /dev/rd/c9d0 First disk, whole disk 2180 8 = /dev/rd/c9d1 Second disk, whole disk 2181 ... 2182 248 = /dev/rd/c9d31 32nd disk, whole disk 2183 2184 Partitions are handled as for major 48. 2185 2186 138 block Mylex DAC960 PCI RAID controller; eleventh controller 2187 0 = /dev/rd/c10d0 First disk, whole disk 2188 8 = /dev/rd/c10d1 Second disk, whole disk 2189 ... 2190 248 = /dev/rd/c10d31 32nd disk, whole disk 2191 2192 Partitions are handled as for major 48. 2193 2194 139 block Mylex DAC960 PCI RAID controller; twelfth controller 2195 0 = /dev/rd/c11d0 First disk, whole disk 2196 8 = /dev/rd/c11d1 Second disk, whole disk 2197 ... 2198 248 = /dev/rd/c11d31 32nd disk, whole disk 2199 2200 Partitions are handled as for major 48. 2201 2202 140 block Mylex DAC960 PCI RAID controller; thirteenth controller 2203 0 = /dev/rd/c12d0 First disk, whole disk 2204 8 = /dev/rd/c12d1 Second disk, whole disk 2205 ... 2206 248 = /dev/rd/c12d31 32nd disk, whole disk 2207 2208 Partitions are handled as for major 48. 2209 2210 141 block Mylex DAC960 PCI RAID controller; fourteenth controller 2211 0 = /dev/rd/c13d0 First disk, whole disk 2212 8 = /dev/rd/c13d1 Second disk, whole disk 2213 ... 2214 248 = /dev/rd/c13d31 32nd disk, whole disk 2215 2216 Partitions are handled as for major 48. 2217 2218 142 block Mylex DAC960 PCI RAID controller; fifteenth controller 2219 0 = /dev/rd/c14d0 First disk, whole disk 2220 8 = /dev/rd/c14d1 Second disk, whole disk 2221 ... 2222 248 = /dev/rd/c14d31 32nd disk, whole disk 2223 2224 Partitions are handled as for major 48. 2225 2226 143 block Mylex DAC960 PCI RAID controller; sixteenth controller 2227 0 = /dev/rd/c15d0 First disk, whole disk 2228 8 = /dev/rd/c15d1 Second disk, whole disk 2229 ... 2230 248 = /dev/rd/c15d31 32nd disk, whole disk 2231 2232 Partitions are handled as for major 48. 2233 2234 144 char Encapsulated PPP 2235 0 = /dev/pppox0 First PPP over Ethernet 2236 ... 2237 63 = /dev/pppox63 64th PPP over Ethernet 2238 2239 This is primarily used for ADSL. 2240 2241 The SST 5136-DN DeviceNet interface driver has been 2242 relocated to major 183 due to an unfortunate conflict. 2243 2244 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts 2245 0 = mounted device 256 2246 255 = mounted device 511 2247 2248 145 char SAM9407-based soundcard 2249 0 = /dev/sam0_mixer 2250 1 = /dev/sam0_sequencer 2251 2 = /dev/sam0_midi00 2252 3 = /dev/sam0_dsp 2253 4 = /dev/sam0_audio 2254 6 = /dev/sam0_sndstat 2255 18 = /dev/sam0_midi01 2256 34 = /dev/sam0_midi02 2257 50 = /dev/sam0_midi03 2258 64 = /dev/sam1_mixer 2259 ... 2260 128 = /dev/sam2_mixer 2261 ... 2262 192 = /dev/sam3_mixer 2263 ... 2264 2265 Device functions match OSS, but offer a number of 2266 addons, which are sam9407 specific. OSS can be 2267 operated simultaneously, taking care of the codec. 2268 2269 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts 2270 0 = mounted device 512 2271 255 = mounted device 767 2272 2273 146 char SYSTRAM SCRAMNet mirrored-memory network 2274 0 = /dev/scramnet0 First SCRAMNet device 2275 1 = /dev/scramnet1 Second SCRAMNet device 2276 ... 2277 2278 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts 2279 0 = mounted device 768 2280 255 = mounted device 1023 2281 2282 147 char Aureal Semiconductor Vortex Audio device 2283 0 = /dev/aureal0 First Aureal Vortex 2284 1 = /dev/aureal1 Second Aureal Vortex 2285 ... 2286 2287 147 block Distributed Replicated Block Device (DRBD) 2288 0 = /dev/drbd0 First DRBD device 2289 1 = /dev/drbd1 Second DRBD device 2290 ... 2291 2292 148 char Technology Concepts serial card 2293 0 = /dev/ttyT0 First TCL port 2294 1 = /dev/ttyT1 Second TCL port 2295 ... 2296 2297 149 char Technology Concepts serial card - alternate devices 2298 0 = /dev/cut0 Callout device for ttyT0 2299 1 = /dev/cut0 Callout device for ttyT1 2300 ... 2301 2302 150 char Real-Time Linux FIFOs 2303 0 = /dev/rtf0 First RTLinux FIFO 2304 1 = /dev/rtf1 Second RTLinux FIFO 2305 ... 2306 2307 151 char DPT I2O SmartRaid V controller 2308 0 = /dev/dpti0 First DPT I2O adapter 2309 1 = /dev/dpti1 Second DPT I2O adapter 2310 ... 2311 2312 152 char EtherDrive Control Device 2313 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive 2314 1 = /dev/etherd/err Monitor errors 2315 2 = /dev/etherd/raw Raw AoE packet monitor 2316 2317 152 block EtherDrive Block Devices 2318 0 = /dev/etherd/0 EtherDrive 0 2319 ... 2320 255 = /dev/etherd/255 EtherDrive 255 2321 2322 153 char SPI Bus Interface (sometimes referred to as MicroWire) 2323 0 = /dev/spi0 First SPI device on the bus 2324 1 = /dev/spi1 Second SPI device on the bus 2325 ... 2326 15 = /dev/spi15 Sixteenth SPI device on the bus 2327 2328 153 block Enhanced Metadisk RAID (EMD) storage units 2329 0 = /dev/emd/0 First unit 2330 1 = /dev/emd/0p1 Partition 1 on First unit 2331 2 = /dev/emd/0p2 Partition 2 on First unit 2332 ... 2333 15 = /dev/emd/0p15 Partition 15 on First unit 2334 2335 16 = /dev/emd/1 Second unit 2336 32 = /dev/emd/2 Third unit 2337 ... 2338 240 = /dev/emd/15 Sixteenth unit 2339 2340 Partitions are handled in the same way as for IDE 2341 disks (see major number 3) except that the limit on 2342 partitions is 15. 2343 2344 154 char Specialix RIO serial card 2345 0 = /dev/ttySR0 First RIO port 2346 ... 2347 255 = /dev/ttySR255 256th RIO port 2348 2349 155 char Specialix RIO serial card - alternate devices 2350 0 = /dev/cusr0 Callout device for ttySR0 2351 ... 2352 255 = /dev/cusr255 Callout device for ttySR255 2353 2354 156 char Specialix RIO serial card 2355 0 = /dev/ttySR256 257th RIO port 2356 ... 2357 255 = /dev/ttySR511 512th RIO port 2358 2359 157 char Specialix RIO serial card - alternate devices 2360 0 = /dev/cusr256 Callout device for ttySR256 2361 ... 2362 255 = /dev/cusr511 Callout device for ttySR511 2363 2364 158 char Dialogic GammaLink fax driver 2365 0 = /dev/gfax0 GammaLink channel 0 2366 1 = /dev/gfax1 GammaLink channel 1 2367 ... 2368 2369 159 char RESERVED 2370 2371 159 block RESERVED 2372 2373 160 char General Purpose Instrument Bus (GPIB) 2374 0 = /dev/gpib0 First GPIB bus 2375 1 = /dev/gpib1 Second GPIB bus 2376 ... 2377 2378 160 block Carmel 8-port SATA Disks on First Controller 2379 0 = /dev/carmel/0 SATA disk 0 whole disk 2380 1 = /dev/carmel/0p1 SATA disk 0 partition 1 2381 ... 2382 31 = /dev/carmel/0p31 SATA disk 0 partition 31 2383 2384 32 = /dev/carmel/1 SATA disk 1 whole disk 2385 64 = /dev/carmel/2 SATA disk 2 whole disk 2386 ... 2387 224 = /dev/carmel/7 SATA disk 7 whole disk 2388 2389 Partitions are handled in the same way as for IDE 2390 disks (see major number 3) except that the limit on 2391 partitions is 31. 2392 2393 161 char IrCOMM devices (IrDA serial/parallel emulation) 2394 0 = /dev/ircomm0 First IrCOMM device 2395 1 = /dev/ircomm1 Second IrCOMM device 2396 ... 2397 16 = /dev/irlpt0 First IrLPT device 2398 17 = /dev/irlpt1 Second IrLPT device 2399 ... 2400 2401 161 block Carmel 8-port SATA Disks on Second Controller 2402 0 = /dev/carmel/8 SATA disk 8 whole disk 2403 1 = /dev/carmel/8p1 SATA disk 8 partition 1 2404 ... 2405 31 = /dev/carmel/8p31 SATA disk 8 partition 31 2406 2407 32 = /dev/carmel/9 SATA disk 9 whole disk 2408 64 = /dev/carmel/10 SATA disk 10 whole disk 2409 ... 2410 224 = /dev/carmel/15 SATA disk 15 whole disk 2411 2412 Partitions are handled in the same way as for IDE 2413 disks (see major number 3) except that the limit on 2414 partitions is 31. 2415 2416 162 char Raw block device interface 2417 0 = /dev/rawctl Raw I/O control device 2418 1 = /dev/raw/raw1 First raw I/O device 2419 2 = /dev/raw/raw2 Second raw I/O device 2420 ... 2421 2422 163 char 2423 2424 164 char Chase Research AT/PCI-Fast serial card 2425 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0 2426 ... 2427 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15 2428 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0 2429 ... 2430 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15 2431 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0 2432 ... 2433 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15 2434 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0 2435 ... 2436 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15 2437 2438 165 char Chase Research AT/PCI-Fast serial card - alternate devices 2439 0 = /dev/cuch0 Callout device for ttyCH0 2440 ... 2441 63 = /dev/cuch63 Callout device for ttyCH63 2442 2443 166 char ACM USB modems 2444 0 = /dev/ttyACM0 First ACM modem 2445 1 = /dev/ttyACM1 Second ACM modem 2446 ... 2447 2448 167 char ACM USB modems - alternate devices 2449 0 = /dev/cuacm0 Callout device for ttyACM0 2450 1 = /dev/cuacm1 Callout device for ttyACM1 2451 ... 2452 2453 168 char Eracom CSA7000 PCI encryption adaptor 2454 0 = /dev/ecsa0 First CSA7000 2455 1 = /dev/ecsa1 Second CSA7000 2456 ... 2457 2458 169 char Eracom CSA8000 PCI encryption adaptor 2459 0 = /dev/ecsa8-0 First CSA8000 2460 1 = /dev/ecsa8-1 Second CSA8000 2461 ... 2462 2463 170 char AMI MegaRAC remote access controller 2464 0 = /dev/megarac0 First MegaRAC card 2465 1 = /dev/megarac1 Second MegaRAC card 2466 ... 2467 2468 171 char Reserved for IEEE 1394 (Firewire) 2469 2470 172 char Moxa Intellio serial card 2471 0 = /dev/ttyMX0 First Moxa port 2472 1 = /dev/ttyMX1 Second Moxa port 2473 ... 2474 127 = /dev/ttyMX127 128th Moxa port 2475 128 = /dev/moxactl Moxa control port 2476 2477 173 char Moxa Intellio serial card - alternate devices 2478 0 = /dev/cumx0 Callout device for ttyMX0 2479 1 = /dev/cumx1 Callout device for ttyMX1 2480 ... 2481 127 = /dev/cumx127 Callout device for ttyMX127 2482 2483 174 char SmartIO serial card 2484 0 = /dev/ttySI0 First SmartIO port 2485 1 = /dev/ttySI1 Second SmartIO port 2486 ... 2487 2488 175 char SmartIO serial card - alternate devices 2489 0 = /dev/cusi0 Callout device for ttySI0 2490 1 = /dev/cusi1 Callout device for ttySI1 2491 ... 2492 2493 176 char nCipher nFast PCI crypto accelerator 2494 0 = /dev/nfastpci0 First nFast PCI device 2495 1 = /dev/nfastpci1 First nFast PCI device 2496 ... 2497 2498 177 char TI PCILynx memory spaces 2499 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card 2500 ... 2501 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card 2502 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card 2503 ... 2504 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card 2505 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card 2506 ... 2507 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card 2508 2509 178 char Giganet cLAN1xxx virtual interface adapter 2510 0 = /dev/clanvi0 First cLAN adapter 2511 1 = /dev/clanvi1 Second cLAN adapter 2512 ... 2513 2514 179 block MMC block devices 2515 0 = /dev/mmcblk0 First SD/MMC card 2516 1 = /dev/mmcblk0p1 First partition on first MMC card 2517 8 = /dev/mmcblk1 Second SD/MMC card 2518 ... 2519 2520 The start of next SD/MMC card can be configured with 2521 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe 2522 time using the mmcblk.perdev_minors option. That would 2523 bump the offset between each card to be the configured 2524 value instead of the default 8. 2525 2526 179 char CCube DVXChip-based PCI products 2527 0 = /dev/dvxirq0 First DVX device 2528 1 = /dev/dvxirq1 Second DVX device 2529 ... 2530 2531 180 char USB devices 2532 0 = /dev/usb/lp0 First USB printer 2533 ... 2534 15 = /dev/usb/lp15 16th USB printer 2535 48 = /dev/usb/scanner0 First USB scanner 2536 ... 2537 63 = /dev/usb/scanner15 16th USB scanner 2538 64 = /dev/usb/rio500 Diamond Rio 500 2539 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) 2540 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) 2541 96 = /dev/usb/hiddev0 1st USB HID device 2542 ... 2543 111 = /dev/usb/hiddev15 16th USB HID device 2544 112 = /dev/usb/auer0 1st auerswald ISDN device 2545 ... 2546 127 = /dev/usb/auer15 16th auerswald ISDN device 2547 128 = /dev/usb/brlvgr0 First Braille Voyager device 2548 ... 2549 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device 2550 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device 2551 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device 2552 ... 2553 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device 2554 144 = /dev/usb/lcd USB LCD device 2555 160 = /dev/usb/legousbtower0 1st USB Legotower device 2556 ... 2557 175 = /dev/usb/legousbtower15 16th USB Legotower device 2558 176 = /dev/usb/usbtmc1 First USB TMC device 2559 ... 2560 191 = /dev/usb/usbtmc16 16th USB TMC device 2561 192 = /dev/usb/yurex1 First USB Yurex device 2562 ... 2563 209 = /dev/usb/yurex16 16th USB Yurex device 2564 240 = /dev/usb/dabusb0 First daubusb device 2565 ... 2566 243 = /dev/usb/dabusb3 Fourth dabusb device 2567 2568 180 block USB block devices 2569 0 = /dev/uba First USB block device 2570 8 = /dev/ubb Second USB block device 2571 16 = /dev/ubc Third USB block device 2572 ... 2573 2574 181 char Conrad Electronic parallel port radio clocks 2575 0 = /dev/pcfclock0 First Conrad radio clock 2576 1 = /dev/pcfclock1 Second Conrad radio clock 2577 ... 2578 2579 182 char Picture Elements THR2 binarizer 2580 0 = /dev/pethr0 First THR2 board 2581 1 = /dev/pethr1 Second THR2 board 2582 ... 2583 2584 183 char SST 5136-DN DeviceNet interface 2585 0 = /dev/ss5136dn0 First DeviceNet interface 2586 1 = /dev/ss5136dn1 Second DeviceNet interface 2587 ... 2588 2589 This device used to be assigned to major number 144. 2590 It had to be moved due to an unfortunate conflict. 2591 2592 184 char Picture Elements' video simulator/sender 2593 0 = /dev/pevss0 First sender board 2594 1 = /dev/pevss1 Second sender board 2595 ... 2596 2597 185 char InterMezzo high availability file system 2598 0 = /dev/intermezzo0 First cache manager 2599 1 = /dev/intermezzo1 Second cache manager 2600 ... 2601 2602 See http://web.archive.org/web/20080115195241/ 2603 http://inter-mezzo.org/index.html 2604 2605 186 char Object-based storage control device 2606 0 = /dev/obd0 First obd control device 2607 1 = /dev/obd1 Second obd control device 2608 ... 2609 2610 See ftp://ftp.lustre.org/pub/obd for code and information. 2611 2612 187 char DESkey hardware encryption device 2613 0 = /dev/deskey0 First DES key 2614 1 = /dev/deskey1 Second DES key 2615 ... 2616 2617 188 char USB serial converters 2618 0 = /dev/ttyUSB0 First USB serial converter 2619 1 = /dev/ttyUSB1 Second USB serial converter 2620 ... 2621 2622 189 char USB serial converters - alternate devices 2623 0 = /dev/cuusb0 Callout device for ttyUSB0 2624 1 = /dev/cuusb1 Callout device for ttyUSB1 2625 ... 2626 2627 190 char Kansas City tracker/tuner card 2628 0 = /dev/kctt0 First KCT/T card 2629 1 = /dev/kctt1 Second KCT/T card 2630 ... 2631 2632 191 char Reserved for PCMCIA 2633 2634 192 char Kernel profiling interface 2635 0 = /dev/profile Profiling control device 2636 1 = /dev/profile0 Profiling device for CPU 0 2637 2 = /dev/profile1 Profiling device for CPU 1 2638 ... 2639 2640 193 char Kernel event-tracing interface 2641 0 = /dev/trace Tracing control device 2642 1 = /dev/trace0 Tracing device for CPU 0 2643 2 = /dev/trace1 Tracing device for CPU 1 2644 ... 2645 2646 194 char linVideoStreams (LINVS) 2647 0 = /dev/mvideo/status0 Video compression status 2648 1 = /dev/mvideo/stream0 Video stream 2649 2 = /dev/mvideo/frame0 Single compressed frame 2650 3 = /dev/mvideo/rawframe0 Raw uncompressed frame 2651 4 = /dev/mvideo/codec0 Direct codec access 2652 5 = /dev/mvideo/video4linux0 Video4Linux compatibility 2653 2654 16 = /dev/mvideo/status1 Second device 2655 ... 2656 32 = /dev/mvideo/status2 Third device 2657 ... 2658 ... 2659 240 = /dev/mvideo/status15 16th device 2660 ... 2661 2662 195 char Nvidia graphics devices 2663 0 = /dev/nvidia0 First Nvidia card 2664 1 = /dev/nvidia1 Second Nvidia card 2665 ... 2666 255 = /dev/nvidiactl Nvidia card control device 2667 2668 196 char Tormenta T1 card 2669 0 = /dev/tor/0 Master control channel for all cards 2670 1 = /dev/tor/1 First DS0 2671 2 = /dev/tor/2 Second DS0 2672 ... 2673 48 = /dev/tor/48 48th DS0 2674 49 = /dev/tor/49 First pseudo-channel 2675 50 = /dev/tor/50 Second pseudo-channel 2676 ... 2677 2678 197 char OpenTNF tracing facility 2679 0 = /dev/tnf/t0 Trace 0 data extraction 2680 1 = /dev/tnf/t1 Trace 1 data extraction 2681 ... 2682 128 = /dev/tnf/status Tracing facility status 2683 130 = /dev/tnf/trace Tracing device 2684 2685 198 char Total Impact TPMP2 quad coprocessor PCI card 2686 0 = /dev/tpmp2/0 First card 2687 1 = /dev/tpmp2/1 Second card 2688 ... 2689 2690 199 char Veritas volume manager (VxVM) volumes 2691 0 = /dev/vx/rdsk/*/* First volume 2692 1 = /dev/vx/rdsk/*/* Second volume 2693 ... 2694 2695 199 block Veritas volume manager (VxVM) volumes 2696 0 = /dev/vx/dsk/*/* First volume 2697 1 = /dev/vx/dsk/*/* Second volume 2698 ... 2699 2700 The namespace in these directories is maintained by 2701 the user space VxVM software. 2702 2703 200 char Veritas VxVM configuration interface 2704 0 = /dev/vx/config Configuration access node 2705 1 = /dev/vx/trace Volume i/o trace access node 2706 2 = /dev/vx/iod Volume i/o daemon access node 2707 3 = /dev/vx/info Volume information access node 2708 4 = /dev/vx/task Volume tasks access node 2709 5 = /dev/vx/taskmon Volume tasks monitor daemon 2710 2711 201 char Veritas VxVM dynamic multipathing driver 2712 0 = /dev/vx/rdmp/* First multipath device 2713 1 = /dev/vx/rdmp/* Second multipath device 2714 ... 2715 201 block Veritas VxVM dynamic multipathing driver 2716 0 = /dev/vx/dmp/* First multipath device 2717 1 = /dev/vx/dmp/* Second multipath device 2718 ... 2719 2720 The namespace in these directories is maintained by 2721 the user space VxVM software. 2722 2723 202 char CPU model-specific registers 2724 0 = /dev/cpu/0/msr MSRs on CPU 0 2725 1 = /dev/cpu/1/msr MSRs on CPU 1 2726 ... 2727 2728 202 block Xen Virtual Block Device 2729 0 = /dev/xvda First Xen VBD whole disk 2730 16 = /dev/xvdb Second Xen VBD whole disk 2731 32 = /dev/xvdc Third Xen VBD whole disk 2732 ... 2733 240 = /dev/xvdp Sixteenth Xen VBD whole disk 2734 2735 Partitions are handled in the same way as for IDE 2736 disks (see major number 3) except that the limit on 2737 partitions is 15. 2738 2739 203 char CPU CPUID information 2740 0 = /dev/cpu/0/cpuid CPUID on CPU 0 2741 1 = /dev/cpu/1/cpuid CPUID on CPU 1 2742 ... 2743 2744 204 char Low-density serial ports 2745 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0 2746 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1 2747 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2 2748 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3 2749 4 = /dev/ttyFB0 Intel Footbridge (ARM) 2750 5 = /dev/ttySA0 StrongARM builtin serial port 0 2751 6 = /dev/ttySA1 StrongARM builtin serial port 1 2752 7 = /dev/ttySA2 StrongARM builtin serial port 2 2753 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0 2754 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1 2755 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2 2756 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3 2757 12 = /dev/ttyFW0 Firmware console - port 0 2758 13 = /dev/ttyFW1 Firmware console - port 1 2759 14 = /dev/ttyFW2 Firmware console - port 2 2760 15 = /dev/ttyFW3 Firmware console - port 3 2761 16 = /dev/ttyAM0 ARM "AMBA" serial port 0 2762 ... 2763 31 = /dev/ttyAM15 ARM "AMBA" serial port 15 2764 32 = /dev/ttyDB0 DataBooster serial port 0 2765 ... 2766 39 = /dev/ttyDB7 DataBooster serial port 7 2767 40 = /dev/ttySG0 SGI Altix console port 2768 41 = /dev/ttySMX0 Motorola i.MX - port 0 2769 42 = /dev/ttySMX1 Motorola i.MX - port 1 2770 43 = /dev/ttySMX2 Motorola i.MX - port 2 2771 44 = /dev/ttyMM0 Marvell MPSC - port 0 2772 45 = /dev/ttyMM1 Marvell MPSC - port 1 2773 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0 2774 ... 2775 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5 2776 50 = /dev/ttyIOC0 Altix serial card 2777 ... 2778 81 = /dev/ttyIOC31 Altix serial card 2779 82 = /dev/ttyVR0 NEC VR4100 series SIU 2780 83 = /dev/ttyVR1 NEC VR4100 series DSIU 2781 84 = /dev/ttyIOC84 Altix ioc4 serial card 2782 ... 2783 115 = /dev/ttyIOC115 Altix ioc4 serial card 2784 116 = /dev/ttySIOC0 Altix ioc3 serial card 2785 ... 2786 147 = /dev/ttySIOC31 Altix ioc3 serial card 2787 148 = /dev/ttyPSC0 PPC PSC - port 0 2788 ... 2789 153 = /dev/ttyPSC5 PPC PSC - port 5 2790 154 = /dev/ttyAT0 ATMEL serial port 0 2791 ... 2792 169 = /dev/ttyAT15 ATMEL serial port 15 2793 170 = /dev/ttyNX0 Hilscher netX serial port 0 2794 ... 2795 185 = /dev/ttyNX15 Hilscher netX serial port 15 2796 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation 2797 187 = /dev/ttyUL0 Xilinx uartlite - port 0 2798 ... 2799 190 = /dev/ttyUL3 Xilinx uartlite - port 3 2800 191 = /dev/xvc0 Xen virtual console - port 0 2801 192 = /dev/ttyPZ0 pmac_zilog - port 0 2802 ... 2803 195 = /dev/ttyPZ3 pmac_zilog - port 3 2804 196 = /dev/ttyTX0 TX39/49 serial port 0 2805 ... 2806 204 = /dev/ttyTX7 TX39/49 serial port 7 2807 205 = /dev/ttySC0 SC26xx serial port 0 2808 206 = /dev/ttySC1 SC26xx serial port 1 2809 207 = /dev/ttySC2 SC26xx serial port 2 2810 208 = /dev/ttySC3 SC26xx serial port 3 2811 209 = /dev/ttyMAX0 MAX3100 serial port 0 2812 210 = /dev/ttyMAX1 MAX3100 serial port 1 2813 211 = /dev/ttyMAX2 MAX3100 serial port 2 2814 212 = /dev/ttyMAX3 MAX3100 serial port 3 2815 2816 205 char Low-density serial ports (alternate device) 2817 0 = /dev/culu0 Callout device for ttyLU0 2818 1 = /dev/culu1 Callout device for ttyLU1 2819 2 = /dev/culu2 Callout device for ttyLU2 2820 3 = /dev/culu3 Callout device for ttyLU3 2821 4 = /dev/cufb0 Callout device for ttyFB0 2822 5 = /dev/cusa0 Callout device for ttySA0 2823 6 = /dev/cusa1 Callout device for ttySA1 2824 7 = /dev/cusa2 Callout device for ttySA2 2825 8 = /dev/cusc0 Callout device for ttySC0 2826 9 = /dev/cusc1 Callout device for ttySC1 2827 10 = /dev/cusc2 Callout device for ttySC2 2828 11 = /dev/cusc3 Callout device for ttySC3 2829 12 = /dev/cufw0 Callout device for ttyFW0 2830 13 = /dev/cufw1 Callout device for ttyFW1 2831 14 = /dev/cufw2 Callout device for ttyFW2 2832 15 = /dev/cufw3 Callout device for ttyFW3 2833 16 = /dev/cuam0 Callout device for ttyAM0 2834 ... 2835 31 = /dev/cuam15 Callout device for ttyAM15 2836 32 = /dev/cudb0 Callout device for ttyDB0 2837 ... 2838 39 = /dev/cudb7 Callout device for ttyDB7 2839 40 = /dev/cusg0 Callout device for ttySG0 2840 41 = /dev/ttycusmx0 Callout device for ttySMX0 2841 42 = /dev/ttycusmx1 Callout device for ttySMX1 2842 43 = /dev/ttycusmx2 Callout device for ttySMX2 2843 46 = /dev/cucpm0 Callout device for ttyCPM0 2844 ... 2845 49 = /dev/cucpm5 Callout device for ttyCPM5 2846 50 = /dev/cuioc40 Callout device for ttyIOC40 2847 ... 2848 81 = /dev/cuioc431 Callout device for ttyIOC431 2849 82 = /dev/cuvr0 Callout device for ttyVR0 2850 83 = /dev/cuvr1 Callout device for ttyVR1 2851 2852 206 char OnStream SC-x0 tape devices 2853 0 = /dev/osst0 First OnStream SCSI tape, mode 0 2854 1 = /dev/osst1 Second OnStream SCSI tape, mode 0 2855 ... 2856 32 = /dev/osst0l First OnStream SCSI tape, mode 1 2857 33 = /dev/osst1l Second OnStream SCSI tape, mode 1 2858 ... 2859 64 = /dev/osst0m First OnStream SCSI tape, mode 2 2860 65 = /dev/osst1m Second OnStream SCSI tape, mode 2 2861 ... 2862 96 = /dev/osst0a First OnStream SCSI tape, mode 3 2863 97 = /dev/osst1a Second OnStream SCSI tape, mode 3 2864 ... 2865 128 = /dev/nosst0 No rewind version of /dev/osst0 2866 129 = /dev/nosst1 No rewind version of /dev/osst1 2867 ... 2868 160 = /dev/nosst0l No rewind version of /dev/osst0l 2869 161 = /dev/nosst1l No rewind version of /dev/osst1l 2870 ... 2871 192 = /dev/nosst0m No rewind version of /dev/osst0m 2872 193 = /dev/nosst1m No rewind version of /dev/osst1m 2873 ... 2874 224 = /dev/nosst0a No rewind version of /dev/osst0a 2875 225 = /dev/nosst1a No rewind version of /dev/osst1a 2876 ... 2877 2878 The OnStream SC-x0 SCSI tapes do not support the 2879 standard SCSI SASD command set and therefore need 2880 their own driver "osst". Note that the IDE, USB (and 2881 maybe ParPort) versions may be driven via ide-scsi or 2882 usb-storage SCSI emulation and this osst device and 2883 driver as well. The ADR-x0 drives are QIC-157 2884 compliant and don't need osst. 2885 2886 207 char Compaq ProLiant health feature indicate 2887 0 = /dev/cpqhealth/cpqw Redirector interface 2888 1 = /dev/cpqhealth/crom EISA CROM 2889 2 = /dev/cpqhealth/cdt Data Table 2890 3 = /dev/cpqhealth/cevt Event Log 2891 4 = /dev/cpqhealth/casr Automatic Server Recovery 2892 5 = /dev/cpqhealth/cecc ECC Memory 2893 6 = /dev/cpqhealth/cmca Machine Check Architecture 2894 7 = /dev/cpqhealth/ccsm Deprecated CDT 2895 8 = /dev/cpqhealth/cnmi NMI Handling 2896 9 = /dev/cpqhealth/css Sideshow Management 2897 10 = /dev/cpqhealth/cram CMOS interface 2898 11 = /dev/cpqhealth/cpci PCI IRQ interface 2899 2900 208 char User space serial ports 2901 0 = /dev/ttyU0 First user space serial port 2902 1 = /dev/ttyU1 Second user space serial port 2903 ... 2904 2905 209 char User space serial ports (alternate devices) 2906 0 = /dev/cuu0 Callout device for ttyU0 2907 1 = /dev/cuu1 Callout device for ttyU1 2908 ... 2909 2910 210 char SBE, Inc. sync/async serial card 2911 0 = /dev/sbei/wxcfg0 Configuration device for board 0 2912 1 = /dev/sbei/dld0 Download device for board 0 2913 2 = /dev/sbei/wan00 WAN device, port 0, board 0 2914 3 = /dev/sbei/wan01 WAN device, port 1, board 0 2915 4 = /dev/sbei/wan02 WAN device, port 2, board 0 2916 5 = /dev/sbei/wan03 WAN device, port 3, board 0 2917 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0 2918 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0 2919 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0 2920 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0 2921 10 = /dev/sbei/wxcfg1 Configuration device for board 1 2922 11 = /dev/sbei/dld1 Download device for board 1 2923 12 = /dev/sbei/wan10 WAN device, port 0, board 1 2924 13 = /dev/sbei/wan11 WAN device, port 1, board 1 2925 14 = /dev/sbei/wan12 WAN device, port 2, board 1 2926 15 = /dev/sbei/wan13 WAN device, port 3, board 1 2927 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1 2928 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1 2929 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1 2930 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1 2931 ... 2932 2933 Yes, each board is really spaced 10 (decimal) apart. 2934 2935 211 char Addinum CPCI1500 digital I/O card 2936 0 = /dev/addinum/cpci1500/0 First CPCI1500 card 2937 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card 2938 ... 2939 2940 212 char LinuxTV.org DVB driver subsystem 2941 0 = /dev/dvb/adapter0/video0 first video decoder of first card 2942 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card 2943 2 = /dev/dvb/adapter0/sec0 (obsolete/unused) 2944 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card 2945 4 = /dev/dvb/adapter0/demux0 first demux device of first card 2946 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card 2947 6 = /dev/dvb/adapter0/ca0 first common access port of first card 2948 7 = /dev/dvb/adapter0/net0 first network device of first card 2949 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card 2950 9 = /dev/dvb/adapter0/video1 second video decoder of first card 2951 ... 2952 64 = /dev/dvb/adapter1/video0 first video decoder of second card 2953 ... 2954 128 = /dev/dvb/adapter2/video0 first video decoder of third card 2955 ... 2956 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card 2957 2958 216 char Bluetooth RFCOMM TTY devices 2959 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device 2960 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device 2961 ... 2962 2963 217 char Bluetooth RFCOMM TTY devices (alternate devices) 2964 0 = /dev/curf0 Callout device for rfcomm0 2965 1 = /dev/curf1 Callout device for rfcomm1 2966 ... 2967 2968 218 char The Logical Company bus Unibus/Qbus adapters 2969 0 = /dev/logicalco/bci/0 First bus adapter 2970 1 = /dev/logicalco/bci/1 First bus adapter 2971 ... 2972 2973 219 char The Logical Company DCI-1300 digital I/O card 2974 0 = /dev/logicalco/dci1300/0 First DCI-1300 card 2975 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card 2976 ... 2977 2978 220 char Myricom Myrinet "GM" board 2979 0 = /dev/myricom/gm0 First Myrinet GM board 2980 1 = /dev/myricom/gmp0 First board "root access" 2981 2 = /dev/myricom/gm1 Second Myrinet GM board 2982 3 = /dev/myricom/gmp1 Second board "root access" 2983 ... 2984 2985 221 char VME bus 2986 0 = /dev/bus/vme/m0 First master image 2987 1 = /dev/bus/vme/m1 Second master image 2988 2 = /dev/bus/vme/m2 Third master image 2989 3 = /dev/bus/vme/m3 Fourth master image 2990 4 = /dev/bus/vme/s0 First slave image 2991 5 = /dev/bus/vme/s1 Second slave image 2992 6 = /dev/bus/vme/s2 Third slave image 2993 7 = /dev/bus/vme/s3 Fourth slave image 2994 8 = /dev/bus/vme/ctl Control 2995 2996 It is expected that all VME bus drivers will use the 2997 same interface. For interface documentation see 2998 http://www.vmelinux.org/. 2999 3000 224 char A2232 serial card 3001 0 = /dev/ttyY0 First A2232 port 3002 1 = /dev/ttyY1 Second A2232 port 3003 ... 3004 3005 225 char A2232 serial card (alternate devices) 3006 0 = /dev/cuy0 Callout device for ttyY0 3007 1 = /dev/cuy1 Callout device for ttyY1 3008 ... 3009 3010 226 char Direct Rendering Infrastructure (DRI) 3011 0 = /dev/dri/card0 First graphics card 3012 1 = /dev/dri/card1 Second graphics card 3013 ... 3014 3015 227 char IBM 3270 terminal Unix tty access 3016 1 = /dev/3270/tty1 First 3270 terminal 3017 2 = /dev/3270/tty2 Seconds 3270 terminal 3018 ... 3019 3020 228 char IBM 3270 terminal block-mode access 3021 0 = /dev/3270/tub Controlling interface 3022 1 = /dev/3270/tub1 First 3270 terminal 3023 2 = /dev/3270/tub2 Second 3270 terminal 3024 ... 3025 3026 229 char IBM iSeries/pSeries virtual console 3027 0 = /dev/hvc0 First console port 3028 1 = /dev/hvc1 Second console port 3029 ... 3030 3031 230 char IBM iSeries virtual tape 3032 0 = /dev/iseries/vt0 First virtual tape, mode 0 3033 1 = /dev/iseries/vt1 Second virtual tape, mode 0 3034 ... 3035 32 = /dev/iseries/vt0l First virtual tape, mode 1 3036 33 = /dev/iseries/vt1l Second virtual tape, mode 1 3037 ... 3038 64 = /dev/iseries/vt0m First virtual tape, mode 2 3039 65 = /dev/iseries/vt1m Second virtual tape, mode 2 3040 ... 3041 96 = /dev/iseries/vt0a First virtual tape, mode 3 3042 97 = /dev/iseries/vt1a Second virtual tape, mode 3 3043 ... 3044 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind 3045 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind 3046 ... 3047 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind 3048 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind 3049 ... 3050 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind 3051 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind 3052 ... 3053 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind 3054 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind 3055 ... 3056 3057 "No rewind" refers to the omission of the default 3058 automatic rewind on device close. The MTREW or MTOFFL 3059 ioctl()'s can be used to rewind the tape regardless of 3060 the device used to access it. 3061 3062 231 char InfiniBand 3063 0 = /dev/infiniband/umad0 3064 1 = /dev/infiniband/umad1 3065 ... 3066 63 = /dev/infiniband/umad63 63rd InfiniBandMad device 3067 64 = /dev/infiniband/issm0 First InfiniBand IsSM device 3068 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device 3069 ... 3070 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device 3071 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device 3072 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device 3073 ... 3074 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device 3075 3076 232 char Biometric Devices 3077 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device 3078 1 = /dev/biometric/sensor0/iris first iris sensor on first device 3079 2 = /dev/biometric/sensor0/retina first retina sensor on first device 3080 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device 3081 4 = /dev/biometric/sensor0/facial first facial sensor on first device 3082 5 = /dev/biometric/sensor0/hand first hand sensor on first device 3083 ... 3084 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device 3085 ... 3086 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device 3087 ... 3088 3089 233 char PathScale InfiniPath interconnect 3090 0 = /dev/ipath Primary device for programs (any unit) 3091 1 = /dev/ipath0 Access specifically to unit 0 3092 2 = /dev/ipath1 Access specifically to unit 1 3093 ... 3094 4 = /dev/ipath3 Access specifically to unit 3 3095 129 = /dev/ipath_sma Device used by Subnet Management Agent 3096 130 = /dev/ipath_diag Device used by diagnostics programs 3097 3098 234-239 UNASSIGNED 3099 3100 240-254 char LOCAL/EXPERIMENTAL USE 3101 3102 240-254 block LOCAL/EXPERIMENTAL USE 3103 Allocated for local/experimental use. For devices not 3104 assigned official numbers, these ranges should be 3105 used in order to avoid conflicting with future assignments. 3106 3107 255 char RESERVED 3108 3109 255 block RESERVED 3110 3111 This major is reserved to assist the expansion to a 3112 larger number space. No device nodes with this major 3113 should ever be created on the filesystem. 3114 (This is probably not true anymore, but I'll leave it 3115 for now /Torben) 3116 3117 ---LARGE MAJORS!!!!!--- 3118 3119 256 char Equinox SST multi-port serial boards 3120 0 = /dev/ttyEQ0 First serial port on first Equinox SST board 3121 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board 3122 128 = /dev/ttyEQ128 First serial port on second Equinox SST board 3123 ... 3124 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board 3125 3126 256 block Resident Flash Disk Flash Translation Layer 3127 0 = /dev/rfda First RFD FTL layer 3128 16 = /dev/rfdb Second RFD FTL layer 3129 ... 3130 240 = /dev/rfdp 16th RFD FTL layer 3131 3132 257 char Phoenix Technologies Cryptographic Services Driver 3133 0 = /dev/ptlsec Crypto Services Driver 3134 3135 257 block SSFDC Flash Translation Layer filesystem 3136 0 = /dev/ssfdca First SSFDC layer 3137 8 = /dev/ssfdcb Second SSFDC layer 3138 16 = /dev/ssfdcc Third SSFDC layer 3139 24 = /dev/ssfdcd 4th SSFDC layer 3140 32 = /dev/ssfdce 5th SSFDC layer 3141 40 = /dev/ssfdcf 6th SSFDC layer 3142 48 = /dev/ssfdcg 7th SSFDC layer 3143 56 = /dev/ssfdch 8th SSFDC layer 3144 3145 258 block ROM/Flash read-only translation layer 3146 0 = /dev/blockrom0 First ROM card's translation layer interface 3147 1 = /dev/blockrom1 Second ROM card's translation layer interface 3148 ... 3149 3150 259 block Block Extended Major 3151 Used dynamically to hold additional partition minor 3152 numbers and allow large numbers of partitions per device 3153 3154 259 char FPGA configuration interfaces 3155 0 = /dev/icap0 First Xilinx internal configuration 3156 1 = /dev/icap1 Second Xilinx internal configuration 3157 3158 260 char OSD (Object-based-device) SCSI Device 3159 0 = /dev/osd0 First OSD Device 3160 1 = /dev/osd1 Second OSD Device 3161 ... 3162 255 = /dev/osd255 256th OSD Device 3163 3164 **** ADDITIONAL /dev DIRECTORY ENTRIES 3165 3166 This section details additional entries that should or may exist in 3167 the /dev directory. It is preferred that symbolic links use the same 3168 form (absolute or relative) as is indicated here. Links are 3169 classified as "hard" or "symbolic" depending on the preferred type of 3170 link; if possible, the indicated type of link should be used. 3171 3172 3173 Compulsory links 3174 3175 These links should exist on all systems: 3176 3177 /dev/fd /proc/self/fd symbolic File descriptors 3178 /dev/stdin fd/0 symbolic stdin file descriptor 3179 /dev/stdout fd/1 symbolic stdout file descriptor 3180 /dev/stderr fd/2 symbolic stderr file descriptor 3181 /dev/nfsd socksys symbolic Required by iBCS-2 3182 /dev/X0R null symbolic Required by iBCS-2 3183 3184 Note: /dev/X0R is <letter X>-<digit 0>-<letter R>. 3185 3186 Recommended links 3187 3188 It is recommended that these links exist on all systems: 3189 3190 /dev/core /proc/kcore symbolic Backward compatibility 3191 /dev/ramdisk ram0 symbolic Backward compatibility 3192 /dev/ftape qft0 symbolic Backward compatibility 3193 /dev/bttv0 video0 symbolic Backward compatibility 3194 /dev/radio radio0 symbolic Backward compatibility 3195 /dev/i2o* /dev/i2o/* symbolic Backward compatibility 3196 /dev/scd? sr? hard Alternate SCSI CD-ROM name 3197 3198 Locally defined links 3199 3200 The following links may be established locally to conform to the 3201 configuration of the system. This is merely a tabulation of existing 3202 practice, and does not constitute a recommendation. However, if they 3203 exist, they should have the following uses. 3204 3205 /dev/mouse mouse port symbolic Current mouse device 3206 /dev/tape tape device symbolic Current tape device 3207 /dev/cdrom CD-ROM device symbolic Current CD-ROM device 3208 /dev/cdwriter CD-writer symbolic Current CD-writer device 3209 /dev/scanner scanner symbolic Current scanner device 3210 /dev/modem modem port symbolic Current dialout device 3211 /dev/root root device symbolic Current root filesystem 3212 /dev/swap swap device symbolic Current swap device 3213 3214 /dev/modem should not be used for a modem which supports dialin as 3215 well as dialout, as it tends to cause lock file problems. If it 3216 exists, /dev/modem should point to the appropriate primary TTY device 3217 (the use of the alternate callout devices is deprecated). 3218 3219 For SCSI devices, /dev/tape and /dev/cdrom should point to the 3220 ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas 3221 /dev/cdwriter and /dev/scanner should point to the appropriate generic 3222 SCSI devices (/dev/sg*). 3223 3224 /dev/mouse may point to a primary serial TTY device, a hardware mouse 3225 device, or a socket for a mouse driver program (e.g. /dev/gpmdata). 3226 3227 Sockets and pipes 3228 3229 Non-transient sockets and named pipes may exist in /dev. Common entries are: 3230 3231 /dev/printer socket lpd local socket 3232 /dev/log socket syslog local socket 3233 /dev/gpmdata socket gpm mouse multiplexer 3234 3235 Mount points 3236 3237 The following names are reserved for mounting special filesystems 3238 under /dev. These special filesystems provide kernel interfaces that 3239 cannot be provided with standard device nodes. 3240 3241 /dev/pts devpts PTY slave filesystem 3242 /dev/shm tmpfs POSIX shared memory maintenance access 3243 3244 **** TERMINAL DEVICES 3245 3246 Terminal, or TTY devices are a special class of character devices. A 3247 terminal device is any device that could act as a controlling terminal 3248 for a session; this includes virtual consoles, serial ports, and 3249 pseudoterminals (PTYs). 3250 3251 All terminal devices share a common set of capabilities known as line 3252 disciplines; these include the common terminal line discipline as well 3253 as SLIP and PPP modes. 3254 3255 All terminal devices are named similarly; this section explains the 3256 naming and use of the various types of TTYs. Note that the naming 3257 conventions include several historical warts; some of these are 3258 Linux-specific, some were inherited from other systems, and some 3259 reflect Linux outgrowing a borrowed convention. 3260 3261 A hash mark (#) in a device name is used here to indicate a decimal 3262 number without leading zeroes. 3263 3264 Virtual consoles and the console device 3265 3266 Virtual consoles are full-screen terminal displays on the system video 3267 monitor. Virtual consoles are named /dev/tty#, with numbering 3268 starting at /dev/tty1; /dev/tty0 is the current virtual console. 3269 /dev/tty0 is the device that should be used to access the system video 3270 card on those architectures for which the frame buffer devices 3271 (/dev/fb*) are not applicable. Do not use /dev/console 3272 for this purpose. 3273 3274 The console device, /dev/console, is the device to which system 3275 messages should be sent, and on which logins should be permitted in 3276 single-user mode. Starting with Linux 2.1.71, /dev/console is managed 3277 by the kernel; for previous versions it should be a symbolic link to 3278 either /dev/tty0, a specific virtual console such as /dev/tty1, or to 3279 a serial port primary (tty*, not cu*) device, depending on the 3280 configuration of the system. 3281 3282 Serial ports 3283 3284 Serial ports are RS-232 serial ports and any device which simulates 3285 one, either in hardware (such as internal modems) or in software (such 3286 as the ISDN driver.) Under Linux, each serial ports has two device 3287 names, the primary or callin device and the alternate or callout one. 3288 Each kind of device is indicated by a different letter. For any 3289 letter X, the names of the devices are /dev/ttyX# and /dev/cux#, 3290 respectively; for historical reasons, /dev/ttyS# and /dev/ttyC# 3291 correspond to /dev/cua# and /dev/cub#. In the future, it should be 3292 expected that multiple letters will be used; all letters will be upper 3293 case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the 3294 "cu" device (e.g. /dev/cudp#). 3295 3296 The names /dev/ttyQ# and /dev/cuq# are reserved for local use. 3297 3298 The alternate devices provide for kernel-based exclusion and somewhat 3299 different defaults than the primary devices. Their main purpose is to 3300 allow the use of serial ports with programs with no inherent or broken 3301 support for serial ports. Their use is deprecated, and they may be 3302 removed from a future version of Linux. 3303 3304 Arbitration of serial ports is provided by the use of lock files with 3305 the names /var/lock/LCK..ttyX#. The contents of the lock file should 3306 be the PID of the locking process as an ASCII number. 3307 3308 It is common practice to install links such as /dev/modem 3309 which point to serial ports. In order to ensure proper locking in the 3310 presence of these links, it is recommended that software chase 3311 symlinks and lock all possible names; additionally, it is recommended 3312 that a lock file be installed with the corresponding alternate 3313 device. In order to avoid deadlocks, it is recommended that the locks 3314 are acquired in the following order, and released in the reverse: 3315 3316 1. The symbolic link name, if any (/var/lock/LCK..modem) 3317 2. The "tty" name (/var/lock/LCK..ttyS2) 3318 3. The alternate device name (/var/lock/LCK..cua2) 3319 3320 In the case of nested symbolic links, the lock files should be 3321 installed in the order the symlinks are resolved. 3322 3323 Under no circumstances should an application hold a lock while waiting 3324 for another to be released. In addition, applications which attempt 3325 to create lock files for the corresponding alternate device names 3326 should take into account the possibility of being used on a non-serial 3327 port TTY, for which no alternate device would exist. 3328 3329 Pseudoterminals (PTYs) 3330 3331 Pseudoterminals, or PTYs, are used to create login sessions or provide 3332 other capabilities requiring a TTY line discipline (including SLIP or 3333 PPP capability) to arbitrary data-generation processes. Each PTY has 3334 a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named 3335 /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by 3336 allowing each master side to be opened only once. 3337 3338 Once the master side has been opened, the corresponding slave device 3339 can be used in the same manner as any TTY device. The master and 3340 slave devices are connected by the kernel, generating the equivalent 3341 of a bidirectional pipe with TTY capabilities. 3342 3343 Recent versions of the Linux kernels and GNU libc contain support for 3344 the System V/Unix98 naming scheme for PTYs, which assigns a common 3345 device, /dev/ptmx, to all the masters (opening it will automatically 3346 give you a previously unassigned PTY) and a subdirectory, /dev/pts, 3347 for the slaves; the slaves are named with decimal integers (/dev/pts/# 3348 in our notation). This removes the problem of exhausting the 3349 namespace and enables the kernel to automatically create the device 3350 nodes for the slaves on demand using the "devpts" filesystem.
- [ Documentation ]
- 00-INDEX
- [ ABI ]
- [ accounting ]
- [ acpi ]
- [ aoe ]
- applying-patches.txt
- [ arm ]
- atomic_ops.txt
- [ auxdisplay ]
- bad_memory.txt
- basic_profiling.txt
- binfmt_misc.txt
- [ blackfin ]
- [ block ]
- [ blockdev ]
- braille-console.txt
- bt8xxgpio.txt
- btmrvl.txt
- BUG-HUNTING
- bus-virt-phys-mapping.txt
- cachetlb.txt
- [ cdrom ]
- [ cgroups ]
- Changes
- circular-buffers.txt
- coccinelle.txt
- CodingStyle
- [ connector ]
- [ console ]
- [ cpu-freq ]
- cpu-hotplug.txt
- cpu-load.txt
- [ cpuidle ]
- cputopology.txt
- [ cris ]
- [ crypto ]
- dcdbas.txt
- debugging-modules.txt
- debugging-via-ohci1394.txt
- dell_rbu.txt
- [ development-process ]
- [ device-mapper ]
- devices.txt
- [ devicetree ]
- DMA-API-HOWTO.txt
- DMA-API.txt
- DMA-attributes.txt
- DMA-ISA-LPC.txt
- dmaengine.txt
- [ DocBook ]
- dontdiff
- [ driver-model ]
- [ dvb ]
- dynamic-debug-howto.txt
- [ early-userspace ]
- edac.txt
- eisa.txt
- email-clients.txt
- [ fault-injection ]
- [ fb ]
- feature-removal-schedule.txt
- [ filesystems ]
- [ firmware_class ]
- flexible-arrays.txt
- [ frv ]
- futex-requeue-pi.txt
- gcov.txt
- gpio.txt
- [ hid ]
- highuid.txt
- HOWTO
- hw_random.txt
- [ hwmon ]
- hwspinlock.txt
- [ i2c ]
- [ i2o ]
- [ ia64 ]
- [ ide ]
- [ infiniband ]
- init.txt
- initrd.txt
- [ input ]
- Intel-IOMMU.txt
- intel_txt.txt
- io-mapping.txt
- io_ordering.txt
- [ ioctl ]
- iostats.txt
- IPMI.txt
- IRQ-affinity.txt
- IRQ.txt
- irqflags-tracing.txt
- isapnp.txt
- [ isdn ]
- [ ja_JP ]
- java.txt
- [ kbuild ]
- [ kdump ]
- kernel-doc-nano-HOWTO.txt
- kernel-docs.txt
- kernel-parameters.txt
- kmemcheck.txt
- kmemleak.txt
- [ ko_KR ]
- kobject.txt
- kprobes.txt
- kref.txt
- [ laptops ]
- ldm.txt
- [ leds ]
- local_ops.txt
- lockdep-design.txt
- lockstat.txt
- logo.gif
- logo.txt
- [ m68k ]
- magic-number.txt
- [ make ]
- Makefile
- ManagementStyle
- mca.txt
- md.txt
- media-framework.txt
- memory-barriers.txt
- memory-hotplug.txt
- memory.txt
- [ mips ]
- [ misc-devices ]
- [ mmc ]
- [ mn10300 ]
- mono.txt
- [ mtd ]
- mutex-design.txt
- [ namespaces ]
- [ netlabel ]
- [ networking ]
- [ nfc ]
- nmi_watchdog.txt
- nommu-mmap.txt
- numastat.txt
- oops-tracing.txt
- padata.txt
- [ parisc ]
- parport-lowlevel.txt
- parport.txt
- [ PCI ]
- [ pcmcia ]
- pi-futex.txt
- pinctrl.txt
- pnp.txt
- [ power ]
- [ powerpc ]
- [ pps ]
- [ prctl ]
- preempt-locking.txt
- printk-formats.txt
- prio_tree.txt
- [ pti ]
- [ ptp ]
- ramoops.txt
- [ rapidio ]
- rbtree.txt
- [ RCU ]
- rfkill.txt
- robust-futex-ABI.txt
- robust-futexes.txt
- rt-mutex-design.txt
- rt-mutex.txt
- rtc.txt
- [ s390 ]
- SAK.txt
- [ scheduler ]
- [ scsi ]
- [ security ]
- SecurityBugs
- [ serial ]
- serial-console.txt
- sgi-ioc4.txt
- sgi-visws.txt
- [ sh ]
- SM501.txt
- [ sound ]
- [ sparc ]
- sparse.txt
- [ spi ]
- spinlocks.txt
- stable_api_nonsense.txt
- stable_kernel_rules.txt
- SubmitChecklist
- SubmittingDrivers
- SubmittingPatches
- svga.txt
- [ sysctl ]
- sysfs-rules.txt
- sysrq.txt
- [ target ]
- [ telephony ]
- [ thermal ]
- [ timers ]
- [ trace ]
- unaligned-memory-access.txt
- unicode.txt
- unshare.txt
- [ usb ]
- [ vDSO ]
- VGA-softcursor.txt
- vgaarbiter.txt
- video-output.txt
- [ video4linux ]
- [ virtual ]
- [ vm ]
- volatile-considered-harmful.txt
- [ w1 ]
- [ watchdog ]
- [ wimax ]
- workqueue.txt
- [ x86 ]
- xz.txt
- [ zh_CN ]
- zorro.txt
Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.