Based on kernel version 2.6.30. Page generated on 2009-06-11 10:13 EST.
1 2 Advanced Linux Sound Architecture - Driver 3 ========================================== 4 Configuration guide 5 6 7 Kernel Configuration 8 ==================== 9 10 To enable ALSA support you need at least to build the kernel with 11 primary sound card support (CONFIG_SOUND). Since ALSA can emulate OSS, 12 you don't have to choose any of the OSS modules. 13 14 Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and 15 PCM supports if you want to run OSS applications with ALSA. 16 17 If you want to support the WaveTable functionality on cards such as 18 SB Live! then you need to enable "Sequencer support" 19 (CONFIG_SND_SEQUENCER). 20 21 To make ALSA debug messages more verbose, enable the "Verbose printk" 22 and "Debug" options. To check for memory leaks, turn on "Debug memory" 23 too. "Debug detection" will add checks for the detection of cards. 24 25 Please note that all the ALSA ISA drivers support the Linux isapnp API 26 (if the card supports ISA PnP). You don't need to configure the cards 27 using isapnptools. 28 29 30 Creating ALSA devices 31 ===================== 32 33 This depends on your distribution, but normally you use the /dev/MAKEDEV 34 script to create the necessary device nodes. On some systems you use a 35 script named 'snddevices'. 36 37 38 Module parameters 39 ================= 40 41 The user can load modules with options. If the module supports more than 42 one card and you have more than one card of the same type then you can 43 specify multiple values for the option separated by commas. 44 45 Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. 46 47 Module snd 48 ---------- 49 50 The core ALSA module. It is used by all ALSA card drivers. 51 It takes the following options which have global effects. 52 53 major - major number for sound driver 54 - Default: 116 55 cards_limit 56 - limiting card index for auto-loading (1-8) 57 - Default: 1 58 - For auto-loading more than one card, specify this 59 option together with snd-card-X aliases. 60 slots - Reserve the slot index for the given driver. 61 This option takes multiple strings. 62 See "Module Autoloading Support" section for details. 63 64 Module snd-pcm-oss 65 ------------------ 66 67 The PCM OSS emulation module. 68 This module takes options which change the mapping of devices. 69 70 dsp_map - PCM device number maps assigned to the 1st OSS device. 71 - Default: 0 72 adsp_map - PCM device number maps assigned to the 2st OSS device. 73 - Default: 1 74 nonblock_open 75 - Don't block opening busy PCM devices. Default: 1 76 77 For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of 78 the card #0. Similarly, when adsp_map=0, /dev/adsp will be mapped 79 to PCM #0 of the card #0. 80 For changing the second or later card, specify the option with 81 commas, such like "dsp_map=0,1". 82 83 nonblock_open option is used to change the behavior of the PCM 84 regarding opening the device. When this option is non-zero, 85 opening a busy OSS PCM device won't be blocked but return 86 immediately with EAGAIN (just like O_NONBLOCK flag). 87 88 Module snd-rawmidi 89 ------------------ 90 91 This module takes options which change the mapping of devices. 92 similar to those of the snd-pcm-oss module. 93 94 midi_map - MIDI device number maps assigned to the 1st OSS device. 95 - Default: 0 96 amidi_map - MIDI device number maps assigned to the 2st OSS device. 97 - Default: 1 98 99 Common parameters for top sound card modules 100 -------------------------------------------- 101 102 Each of top level sound card module takes the following options. 103 104 index - index (slot #) of sound card 105 - Values: 0 through 31 or negative 106 - If nonnegative, assign that index number 107 - if negative, interpret as a bitmask of permissible 108 indices; the first free permitted index is assigned 109 - Default: -1 110 id - card ID (identifier or name) 111 - Can be up to 15 characters long 112 - Default: the card type 113 - A directory by this name is created under /proc/asound/ 114 containing information about the card 115 - This ID can be used instead of the index number in 116 identifying the card 117 enable - enable card 118 - Default: enabled, for PCI and ISA PnP cards 119 120 Module snd-adlib 121 ---------------- 122 123 Module for AdLib FM cards. 124 125 port - port # for OPL chip 126 127 This module supports multiple cards. It does not support autoprobe, so 128 the port must be specified. For actual AdLib FM cards it will be 0x388. 129 Note that this card does not have PCM support and no mixer; only FM 130 synthesis. 131 132 Make sure you have "sbiload" from the alsa-tools package available and, 133 after loading the module, find out the assigned ALSA sequencer port 134 number through "sbiload -l". Example output: 135 136 Port Client name Port name 137 64:0 OPL2 FM synth OPL2 FM Port 138 139 Load the std.sb and drums.sb patches also supplied by sbiload: 140 141 sbiload -p 64:0 std.sb drums.sb 142 143 If you use this driver to drive an OPL3, you can use std.o3 and drums.o3 144 instead. To have the card produce sound, use aplaymidi from alsa-utils: 145 146 aplaymidi -p 64:0 foo.mid 147 148 Module snd-ad1816a 149 ------------------ 150 151 Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips. 152 153 clockfreq - Clock frequency for AD1816A chip (default = 0, 33000Hz) 154 155 This module supports multiple cards, autoprobe and PnP. 156 157 Module snd-ad1848 158 ----------------- 159 160 Module for sound cards based on AD1848/AD1847/CS4248 ISA chips. 161 162 port - port # for AD1848 chip 163 irq - IRQ # for AD1848 chip 164 dma1 - DMA # for AD1848 chip (0,1,3) 165 166 This module supports multiple cards. It does not support autoprobe 167 thus main port must be specified!!! Other ports are optional. 168 169 The power-management is supported. 170 171 Module snd-ad1889 172 ----------------- 173 174 Module for Analog Devices AD1889 chips. 175 176 ac97_quirk - AC'97 workaround for strange hardware 177 See the description of intel8x0 module for details. 178 179 This module supports multiple cards. 180 181 Module snd-ali5451 182 ------------------ 183 184 Module for ALi M5451 PCI chip. 185 186 pcm_channels - Number of hardware channels assigned for PCM 187 spdif - Support SPDIF I/O 188 - Default: disabled 189 190 This module supports one chip and autoprobe. 191 192 The power-management is supported. 193 194 Module snd-als100 195 ----------------- 196 197 Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips. 198 199 This module supports multiple cards, autoprobe and PnP. 200 201 The power-management is supported. 202 203 Module snd-als300 204 ----------------- 205 206 Module for Avance Logic ALS300 and ALS300+ 207 208 This module supports multiple cards. 209 210 The power-management is supported. 211 212 Module snd-als4000 213 ------------------ 214 215 Module for sound cards based on Avance Logic ALS4000 PCI chip. 216 217 joystick_port - port # for legacy joystick support. 218 0 = disabled (default), 1 = auto-detect 219 220 This module supports multiple cards, autoprobe and PnP. 221 222 The power-management is supported. 223 224 Module snd-atiixp 225 ----------------- 226 227 Module for ATI IXP 150/200/250/400 AC97 controllers. 228 229 ac97_clock - AC'97 clock (default = 48000) 230 ac97_quirk - AC'97 workaround for strange hardware 231 See "AC97 Quirk Option" section below. 232 ac97_codec - Workaround to specify which AC'97 codec 233 instead of probing. If this works for you 234 file a bug with your `lspci -vn` output. 235 -2 -- Force probing. 236 -1 -- Default behavior. 237 0-2 -- Use the specified codec. 238 spdif_aclink - S/PDIF transfer over AC-link (default = 1) 239 240 This module supports one card and autoprobe. 241 242 ATI IXP has two different methods to control SPDIF output. One is 243 over AC-link and another is over the "direct" SPDIF output. The 244 implementation depends on the motherboard, and you'll need to 245 choose the correct one via spdif_aclink module option. 246 247 The power-management is supported. 248 249 Module snd-atiixp-modem 250 ----------------------- 251 252 Module for ATI IXP 150/200/250 AC97 modem controllers. 253 254 This module supports one card and autoprobe. 255 256 Note: The default index value of this module is -2, i.e. the first 257 slot is excluded. 258 259 The power-management is supported. 260 261 Module snd-au8810, snd-au8820, snd-au8830 262 ----------------------------------------- 263 264 Module for Aureal Vortex, Vortex2 and Advantage device. 265 266 pcifix - Control PCI workarounds 267 0 = Disable all workarounds 268 1 = Force the PCI latency of the Aureal card to 0xff 269 2 = Force the Extend PCI#2 Internal Master for Efficient 270 Handling of Dummy Requests on the VIA KT133 AGP Bridge 271 3 = Force both settings 272 255 = Autodetect what is required (default) 273 274 This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware 275 EQ, mpu401, gameport. A3D and wavetable support are still in development. 276 Development and reverse engineering work is being coordinated at 277 http://savannah.nongnu.org/projects/openvortex/ 278 SPDIF output has a copy of the AC97 codec output, unless you use the 279 "spdif" pcm device, which allows raw data passthru. 280 The hardware EQ hardware and SPDIF is only present in the Vortex2 and 281 Advantage. 282 283 Note: Some ALSA mixer applications don't handle the SPDIF sample rate 284 control correctly. If you have problems regarding this, try 285 another ALSA compliant mixer (alsamixer works). 286 287 Module snd-aw2 288 -------------- 289 290 Module for Audiowerk2 sound card 291 292 This module supports multiple cards. 293 294 Module snd-azt2320 295 ------------------ 296 297 Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only). 298 299 This module supports multiple cards, PnP and autoprobe. 300 301 The power-management is supported. 302 303 Module snd-azt3328 304 ------------------ 305 306 Module for sound cards based on Aztech AZF3328 PCI chip. 307 308 joystick - Enable joystick (default off) 309 310 This module supports multiple cards. 311 312 Module snd-bt87x 313 ---------------- 314 315 Module for video cards based on Bt87x chips. 316 317 digital_rate - Override the default digital rate (Hz) 318 load_all - Load the driver even if the card model isn't known 319 320 This module supports multiple cards. 321 322 Note: The default index value of this module is -2, i.e. the first 323 slot is excluded. 324 325 Module snd-ca0106 326 ----------------- 327 328 Module for Creative Audigy LS and SB Live 24bit 329 330 This module supports multiple cards. 331 332 333 Module snd-cmi8330 334 ------------------ 335 336 Module for sound cards based on C-Media CMI8330 ISA chips. 337 338 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 339 340 with isapnp=0, the following options are available: 341 342 wssport - port # for CMI8330 chip (WSS) 343 wssirq - IRQ # for CMI8330 chip (WSS) 344 wssdma - first DMA # for CMI8330 chip (WSS) 345 sbport - port # for CMI8330 chip (SB16) 346 sbirq - IRQ # for CMI8330 chip (SB16) 347 sbdma8 - 8bit DMA # for CMI8330 chip (SB16) 348 sbdma16 - 16bit DMA # for CMI8330 chip (SB16) 349 fmport - (optional) OPL3 I/O port 350 mpuport - (optional) MPU401 I/O port 351 mpuirq - (optional) MPU401 irq # 352 353 This module supports multiple cards and autoprobe. 354 355 The power-management is supported. 356 357 Module snd-cmipci 358 ----------------- 359 360 Module for C-Media CMI8338/8738/8768/8770 PCI sound cards. 361 362 mpu_port - port address of MIDI interface (8338 only): 363 0x300,0x310,0x320,0x330 = legacy port, 364 0 = disable (default) 365 fm_port - port address of OPL-3 FM synthesizer (8x38 only): 366 0x388 = legacy port, 367 1 = integrated PCI port (default on 8738), 368 0 = disable 369 soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only) 370 (default = 1) 371 joystick_port - Joystick port address (0 = disable, 1 = auto-detect) 372 373 This module supports autoprobe and multiple cards. 374 375 The power-management is supported. 376 377 Module snd-cs4231 378 ----------------- 379 380 Module for sound cards based on CS4231 ISA chips. 381 382 port - port # for CS4231 chip 383 mpu_port - port # for MPU-401 UART (optional), -1 = disable 384 irq - IRQ # for CS4231 chip 385 mpu_irq - IRQ # for MPU-401 UART 386 dma1 - first DMA # for CS4231 chip 387 dma2 - second DMA # for CS4231 chip 388 389 This module supports multiple cards. This module does not support autoprobe 390 thus main port must be specified!!! Other ports are optional. 391 392 The power-management is supported. 393 394 Module snd-cs4236 395 ----------------- 396 397 Module for sound cards based on CS4232/CS4232A, 398 CS4235/CS4236/CS4236B/CS4237B/ 399 CS4238B/CS4239 ISA chips. 400 401 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 402 403 with isapnp=0, the following options are available: 404 405 port - port # for CS4236 chip (PnP setup - 0x534) 406 cport - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00) 407 mpu_port - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable 408 fm_port - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable 409 irq - IRQ # for CS4236 chip (5,7,9,11,12,15) 410 mpu_irq - IRQ # for MPU-401 UART (9,11,12,15) 411 dma1 - first DMA # for CS4236 chip (0,1,3) 412 dma2 - second DMA # for CS4236 chip (0,1,3), -1 = disable 413 414 This module supports multiple cards. This module does not support autoprobe 415 (if ISA PnP is not used) thus main port and control port must be 416 specified!!! Other ports are optional. 417 418 The power-management is supported. 419 420 This module is aliased as snd-cs4232 since it provides the old 421 snd-cs4232 functionality, too. 422 423 Module snd-cs4281 424 ----------------- 425 426 Module for Cirrus Logic CS4281 soundchip. 427 428 dual_codec - Secondary codec ID (0 = disable, default) 429 430 This module supports multiple cards. 431 432 The power-management is supported. 433 434 Module snd-cs46xx 435 ----------------- 436 437 Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/ 438 CS4624/CS4630/CS4280 PCI chips. 439 440 external_amp - Force to enable external amplifier. 441 thinkpad - Force to enable Thinkpad's CLKRUN control. 442 mmap_valid - Support OSS mmap mode (default = 0). 443 444 This module supports multiple cards and autoprobe. 445 Usually external amp and CLKRUN controls are detected automatically 446 from PCI sub vendor/device ids. If they don't work, give the options 447 above explicitly. 448 449 The power-management is supported. 450 451 Module snd-cs5530 452 _________________ 453 454 Module for Cyrix/NatSemi Geode 5530 chip. 455 456 Module snd-cs5535audio 457 ---------------------- 458 459 Module for multifunction CS5535 companion PCI device 460 461 The power-management is supported. 462 463 Module snd-darla20 464 ------------------ 465 466 Module for Echoaudio Darla20 467 468 This module supports multiple cards. 469 The driver requires the firmware loader support on kernel. 470 471 Module snd-darla24 472 ------------------ 473 474 Module for Echoaudio Darla24 475 476 This module supports multiple cards. 477 The driver requires the firmware loader support on kernel. 478 479 Module snd-dt019x 480 ----------------- 481 482 Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP 483 only) 484 485 This module supports multiple cards. This module is enabled only with 486 ISA PnP support. 487 488 The power-management is supported. 489 490 Module snd-dummy 491 ---------------- 492 493 Module for the dummy sound card. This "card" doesn't do any output 494 or input, but you may use this module for any application which 495 requires a sound card (like RealPlayer). 496 497 The power-management is supported. 498 499 Module snd-echo3g 500 ----------------- 501 502 Module for Echoaudio 3G cards (Gina3G/Layla3G) 503 504 This module supports multiple cards. 505 The driver requires the firmware loader support on kernel. 506 507 Module snd-emu10k1 508 ------------------ 509 510 Module for EMU10K1/EMU10k2 based PCI sound cards. 511 * Sound Blaster Live! 512 * Sound Blaster PCI 512 513 * Emu APS (partially supported) 514 * Sound Blaster Audigy 515 516 extin - bitmap of available external inputs for FX8010 (see bellow) 517 extout - bitmap of available external outputs for FX8010 (see bellow) 518 seq_ports - allocated sequencer ports (4 by default) 519 max_synth_voices - limit of voices used for wavetable (64 by default) 520 max_buffer_size - specifies the maximum size of wavetable/pcm buffers 521 given in MB unit. Default value is 128. 522 enable_ir - enable IR 523 524 This module supports multiple cards and autoprobe. 525 526 Input & Output configurations [extin/extout] 527 * Creative Card wo/Digital out [0x0003/0x1f03] 528 * Creative Card w/Digital out [0x0003/0x1f0f] 529 * Creative Card w/Digital CD in [0x000f/0x1f0f] 530 * Creative Card wo/Digital out + LiveDrive [0x3fc3/0x1fc3] 531 * Creative Card w/Digital out + LiveDrive [0x3fc3/0x1fcf] 532 * Creative Card w/Digital CD in + LiveDrive [0x3fcf/0x1fcf] 533 * Creative Card wo/Digital out + Digital I/O 2 [0x0fc3/0x1f0f] 534 * Creative Card w/Digital out + Digital I/O 2 [0x0fc3/0x1f0f] 535 * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f] 536 * Creative Card 5.1/w Digital out + LiveDrive [0x3fc3/0x1fff] 537 * Creative Card 5.1 (c) 2003 [0x3fc3/0x7cff] 538 * Creative Card all ins and outs [0x3fff/0x7fff] 539 540 The power-management is supported. 541 542 Module snd-emu10k1x 543 ------------------- 544 545 Module for Creative Emu10k1X (SB Live Dell OEM version) 546 547 This module supports multiple cards. 548 549 Module snd-ens1370 550 ------------------ 551 552 Module for Ensoniq AudioPCI ES1370 PCI sound cards. 553 * SoundBlaster PCI 64 554 * SoundBlaster PCI 128 555 556 joystick - Enable joystick (default off) 557 558 This module supports multiple cards and autoprobe. 559 560 The power-management is supported. 561 562 Module snd-ens1371 563 ------------------ 564 565 Module for Ensoniq AudioPCI ES1371 PCI sound cards. 566 * SoundBlaster PCI 64 567 * SoundBlaster PCI 128 568 * SoundBlaster Vibra PCI 569 570 joystick_port - port # for joystick (0x200,0x208,0x210,0x218), 571 0 = disable (default), 1 = auto-detect 572 573 This module supports multiple cards and autoprobe. 574 575 The power-management is supported. 576 577 Module snd-es968 578 ---------------- 579 580 Module for sound cards based on ESS ES968 chip (PnP only). 581 582 This module supports multiple cards, PnP and autoprobe. 583 584 The power-management is supported. 585 586 Module snd-es1688 587 ----------------- 588 589 Module for ESS AudioDrive ES-1688 and ES-688 sound cards. 590 591 port - port # for ES-1688 chip (0x220,0x240,0x260) 592 fm_port - port # for OPL3 (option; share the same port as default) 593 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) 594 irq - IRQ # for ES-1688 chip (5,7,9,10) 595 mpu_irq - IRQ # for MPU-401 port (5,7,9,10) 596 dma8 - DMA # for ES-1688 chip (0,1,3) 597 598 This module supports multiple cards and autoprobe (without MPU-401 port). 599 600 Module snd-es18xx 601 ----------------- 602 603 Module for ESS AudioDrive ES-18xx sound cards. 604 605 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 606 607 with isapnp=0, the following options are available: 608 609 port - port # for ES-18xx chip (0x220,0x240,0x260) 610 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) 611 fm_port - port # for FM (optional, not used) 612 irq - IRQ # for ES-18xx chip (5,7,9,10) 613 dma1 - first DMA # for ES-18xx chip (0,1,3) 614 dma2 - first DMA # for ES-18xx chip (0,1,3) 615 616 This module supports multiple cards, ISA PnP and autoprobe (without MPU-401 617 port if native ISA PnP routines are not used). 618 When dma2 is equal with dma1, the driver works as half-duplex. 619 620 The power-management is supported. 621 622 Module snd-es1938 623 ----------------- 624 625 Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips. 626 627 This module supports multiple cards and autoprobe. 628 629 The power-management is supported. 630 631 Module snd-es1968 632 ----------------- 633 634 Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips. 635 636 total_bufsize - total buffer size in kB (1-4096kB) 637 pcm_substreams_p - playback channels (1-8, default=2) 638 pcm_substreams_c - capture channels (1-8, default=0) 639 clock - clock (0 = auto-detection) 640 use_pm - support the power-management (0 = off, 1 = on, 641 2 = auto (default)) 642 enable_mpu - enable MPU401 (0 = off, 1 = on, 2 = auto (default)) 643 joystick - enable joystick (default off) 644 645 This module supports multiple cards and autoprobe. 646 647 The power-management is supported. 648 649 Module snd-fm801 650 ---------------- 651 652 Module for ForteMedia FM801 based PCI sound cards. 653 654 tea575x_tuner - Enable TEA575x tuner 655 - 1 = MediaForte 256-PCS 656 - 2 = MediaForte 256-PCPR 657 - 3 = MediaForte 64-PCR 658 - High 16-bits are video (radio) device number + 1 659 - example: 0x10002 (MediaForte 256-PCPR, device 1) 660 661 This module supports multiple cards and autoprobe. 662 663 The power-management is supported. 664 665 Module snd-gina20 666 ----------------- 667 668 Module for Echoaudio Gina20 669 670 This module supports multiple cards. 671 The driver requires the firmware loader support on kernel. 672 673 Module snd-gina24 674 ----------------- 675 676 Module for Echoaudio Gina24 677 678 This module supports multiple cards. 679 The driver requires the firmware loader support on kernel. 680 681 Module snd-gusclassic 682 --------------------- 683 684 Module for Gravis UltraSound Classic sound card. 685 686 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260) 687 irq - IRQ # for GF1 chip (3,5,9,11,12,15) 688 dma1 - DMA # for GF1 chip (1,3,5,6,7) 689 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable) 690 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) 691 voices - GF1 voices limit (14-32) 692 pcm_voices - reserved PCM voices 693 694 This module supports multiple cards and autoprobe. 695 696 Module snd-gusextreme 697 --------------------- 698 699 Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card. 700 701 port - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260) 702 gf1_port - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270) 703 mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable 704 irq - IRQ # for ES-1688 chip (5,7,9,10) 705 gf1_irq - IRQ # for GF1 chip (3,5,9,11,12,15) 706 mpu_irq - IRQ # for MPU-401 port (5,7,9,10) 707 dma8 - DMA # for ES-1688 chip (0,1,3) 708 dma1 - DMA # for GF1 chip (1,3,5,6,7) 709 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) 710 voices - GF1 voices limit (14-32) 711 pcm_voices - reserved PCM voices 712 713 This module supports multiple cards and autoprobe (without MPU-401 port). 714 715 Module snd-gusmax 716 ----------------- 717 718 Module for Gravis UltraSound MAX sound card. 719 720 port - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260) 721 irq - IRQ # for GF1 chip (3,5,9,11,12,15) 722 dma1 - DMA # for GF1 chip (1,3,5,6,7) 723 dma2 - DMA # for GF1 chip (1,3,5,6,7,-1=disable) 724 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) 725 voices - GF1 voices limit (14-32) 726 pcm_voices - reserved PCM voices 727 728 This module supports multiple cards and autoprobe. 729 730 Module snd-hda-intel 731 -------------------- 732 733 Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8, ICH9, ICH10, 734 PCH, SCH), 735 ATI SB450, SB600, R600, RS600, RS690, RS780, RV610, RV620, 736 RV630, RV635, RV670, RV770, 737 VIA VT8251/VT8237A, 738 SIS966, ULI M5461 739 740 [Multiple options for each card instance] 741 model - force the model name 742 position_fix - Fix DMA pointer (0 = auto, 1 = use LPIB, 2 = POSBUF) 743 probe_mask - Bitmask to probe codecs (default = -1, meaning all slots) 744 When the bit 8 (0x100) is set, the lower 8 bits are used 745 as the "fixed" codec slots; i.e. the driver probes the 746 slots regardless what hardware reports back 747 probe_only - Only probing and no codec initialization (default=off); 748 Useful to check the initial codec status for debugging 749 bdl_pos_adj - Specifies the DMA IRQ timing delay in samples. 750 Passing -1 will make the driver to choose the appropriate 751 value based on the controller chip. 752 753 [Single (global) options] 754 single_cmd - Use single immediate commands to communicate with 755 codecs (for debugging only) 756 enable_msi - Enable Message Signaled Interrupt (MSI) (default = off) 757 power_save - Automatic power-saving timtout (in second, 0 = 758 disable) 759 power_save_controller - Reset HD-audio controller in power-saving mode 760 (default = on) 761 762 This module supports multiple cards and autoprobe. 763 764 See Documentation/sound/alsa/HD-Audio.txt for more details about 765 HD-audio driver. 766 767 Each codec may have a model table for different configurations. 768 If your machine isn't listed there, the default (usually minimal) 769 configuration is set up. You can pass "model=<name>" option to 770 specify a certain model in such a case. There are different 771 models depending on the codec chip. The list of available models 772 is found in HD-Audio-Models.txt 773 774 The model name "genric" is treated as a special case. When this 775 model is given, the driver uses the generic codec parser without 776 "codec-patch". It's sometimes good for testing and debugging. 777 778 If the default configuration doesn't work and one of the above 779 matches with your device, report it together with alsa-info.sh 780 output (with --no-upload option) to kernel bugzilla or alsa-devel 781 ML (see the section "Links and Addresses"). 782 783 power_save and power_save_controller options are for power-saving 784 mode. See powersave.txt for details. 785 786 Note 2: If you get click noises on output, try the module option 787 position_fix=1 or 2. position_fix=1 will use the SD_LPIB 788 register value without FIFO size correction as the current 789 DMA pointer. position_fix=2 will make the driver to use 790 the position buffer instead of reading SD_LPIB register. 791 (Usually SD_LPIB register is more accurate than the 792 position buffer.) 793 794 NB: If you get many "azx_get_response timeout" messages at 795 loading, it's likely a problem of interrupts (e.g. ACPI irq 796 routing). Try to boot with options like "pci=noacpi". Also, you 797 can try "single_cmd=1" module option. This will switch the 798 communication method between HDA controller and codecs to the 799 single immediate commands instead of CORB/RIRB. Basically, the 800 single command mode is provided only for BIOS, and you won't get 801 unsolicited events, too. But, at least, this works independently 802 from the irq. Remember this is a last resort, and should be 803 avoided as much as possible... 804 805 MORE NOTES ON "azx_get_response timeout" PROBLEMS: 806 On some hardwares, you may need to add a proper probe_mask option 807 to avoid the "azx_get_response timeout" problem above, instead. 808 This occurs when the access to non-existing or non-working codec slot 809 (likely a modem one) causes a stall of the communication via HD-audio 810 bus. You can see which codec slots are probed by enabling 811 CONFIG_SND_DEBUG_VERBOSE, or simply from the file name of the codec 812 proc files. Then limit the slots to probe by probe_mask option. 813 For example, probe_mask=1 means to probe only the first slot, and 814 probe_mask=4 means only the third slot. 815 816 The power-management is supported. 817 818 Module snd-hdsp 819 --------------- 820 821 Module for RME Hammerfall DSP audio interface(s) 822 823 This module supports multiple cards. 824 825 Note: The firmware data can be automatically loaded via hotplug 826 when CONFIG_FW_LOADER is set. Otherwise, you need to load 827 the firmware via hdsploader utility included in alsa-tools 828 package. 829 The firmware data is found in alsa-firmware package. 830 831 Note: snd-page-alloc module does the job which snd-hammerfall-mem 832 module did formerly. It will allocate the buffers in advance 833 when any HDSP cards are found. To make the buffer 834 allocation sure, load snd-page-alloc module in the early 835 stage of boot sequence. See "Early Buffer Allocation" 836 section. 837 838 Module snd-hdspm 839 ---------------- 840 841 Module for RME HDSP MADI board. 842 843 precise_ptr - Enable precise pointer, or disable. 844 line_outs_monitor - Send playback streams to analog outs by default. 845 enable_monitor - Enable Analog Out on Channel 63/64 by default. 846 847 See hdspm.txt for details. 848 849 Module snd-hifier 850 ----------------- 851 852 Module for the MediaTek/TempoTec HiFier Fantasia sound card. 853 854 This module supports autoprobe and multiple cards. 855 856 Module snd-ice1712 857 ------------------ 858 859 Module for Envy24 (ICE1712) based PCI sound cards. 860 * MidiMan M Audio Delta 1010 861 * MidiMan M Audio Delta 1010LT 862 * MidiMan M Audio Delta DiO 2496 863 * MidiMan M Audio Delta 66 864 * MidiMan M Audio Delta 44 865 * MidiMan M Audio Delta 410 866 * MidiMan M Audio Audiophile 2496 867 * TerraTec EWS 88MT 868 * TerraTec EWS 88D 869 * TerraTec EWX 24/96 870 * TerraTec DMX 6Fire 871 * TerraTec Phase 88 872 * Hoontech SoundTrack DSP 24 873 * Hoontech SoundTrack DSP 24 Value 874 * Hoontech SoundTrack DSP 24 Media 7.1 875 * Event Electronics, EZ8 876 * Digigram VX442 877 * Lionstracs, Mediastaton 878 * Terrasoniq TS 88 879 880 model - Use the given board model, one of the following: 881 delta1010, dio2496, delta66, delta44, audiophile, delta410, 882 delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d, 883 dmx6fire, dsp24, dsp24_value, dsp24_71, ez8, 884 phase88, mediastation 885 omni - Omni I/O support for MidiMan M-Audio Delta44/66 886 cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver) 887 in msec resolution, default value is 500 (0.5 sec) 888 889 This module supports multiple cards and autoprobe. Note: The consumer part 890 is not used with all Envy24 based cards (for example in the MidiMan Delta 891 serie). 892 893 Note: The supported board is detected by reading EEPROM or PCI 894 SSID (if EEPROM isn't available). You can override the 895 model by passing "model" module option in case that the 896 driver isn't configured properly or you want to try another 897 type for testing. 898 899 Module snd-ice1724 900 ------------------ 901 902 Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards. 903 * MidiMan M Audio Revolution 5.1 904 * MidiMan M Audio Revolution 7.1 905 * MidiMan M Audio Audiophile 192 906 * AMP Ltd AUDIO2000 907 * TerraTec Aureon 5.1 Sky 908 * TerraTec Aureon 7.1 Space 909 * TerraTec Aureon 7.1 Universe 910 * TerraTec Phase 22 911 * TerraTec Phase 28 912 * AudioTrak Prodigy 7.1 913 * AudioTrak Prodigy 7.1 LT 914 * AudioTrak Prodigy 7.1 XT 915 * AudioTrak Prodigy 7.1 HIFI 916 * AudioTrak Prodigy 7.1 HD2 917 * AudioTrak Prodigy 192 918 * Pontis MS300 919 * Albatron K8X800 Pro II 920 * Chaintech ZNF3-150 921 * Chaintech ZNF3-250 922 * Chaintech 9CJS 923 * Chaintech AV-710 924 * Shuttle SN25P 925 * Onkyo SE-90PCI 926 * Onkyo SE-200PCI 927 * ESI Juli@ 928 * Hercules Fortissimo IV 929 * EGO-SYS WaveTerminal 192M 930 931 model - Use the given board model, one of the following: 932 revo51, revo71, amp2000, prodigy71, prodigy71lt, 933 prodigy71xt, prodigy71hifi, prodigyhd2, prodigy192, 934 juli, aureon51, aureon71, universe, ap192, k8x800, 935 phase22, phase28, ms300, av710, se200pci, se90pci, 936 fortissimo4, sn25p, WT192M 937 938 This module supports multiple cards and autoprobe. 939 940 Note: The supported board is detected by reading EEPROM or PCI 941 SSID (if EEPROM isn't available). You can override the 942 model by passing "model" module option in case that the 943 driver isn't configured properly or you want to try another 944 type for testing. 945 946 Module snd-indigo 947 ----------------- 948 949 Module for Echoaudio Indigo 950 951 This module supports multiple cards. 952 The driver requires the firmware loader support on kernel. 953 954 Module snd-indigodj 955 ------------------- 956 957 Module for Echoaudio Indigo DJ 958 959 This module supports multiple cards. 960 The driver requires the firmware loader support on kernel. 961 962 Module snd-indigoio 963 ------------------- 964 965 Module for Echoaudio Indigo IO 966 967 This module supports multiple cards. 968 The driver requires the firmware loader support on kernel. 969 970 Module snd-intel8x0 971 ------------------- 972 973 Module for AC'97 motherboards from Intel and compatibles. 974 * Intel i810/810E, i815, i820, i830, i84x, MX440 975 ICH5, ICH6, ICH7, 6300ESB, ESB2 976 * SiS 7012 (SiS 735) 977 * NVidia NForce, NForce2, NForce3, MCP04, CK804 978 CK8, CK8S, MCP501 979 * AMD AMD768, AMD8111 980 * ALi m5455 981 982 ac97_clock - AC'97 codec clock base (0 = auto-detect) 983 ac97_quirk - AC'97 workaround for strange hardware 984 See "AC97 Quirk Option" section below. 985 buggy_irq - Enable workaround for buggy interrupts on some 986 motherboards (default yes on nForce chips, 987 otherwise off) 988 buggy_semaphore - Enable workaround for hardwares with buggy 989 semaphores (e.g. on some ASUS laptops) 990 (default off) 991 spdif_aclink - Use S/PDIF over AC-link instead of direct connection 992 from the controller chip 993 (0 = off, 1 = on, -1 = default) 994 995 This module supports one chip and autoprobe. 996 997 Note: the latest driver supports auto-detection of chip clock. 998 if you still encounter too fast playback, specify the clock 999 explicitly via the module option "ac97_clock=41194". 1000 1001 Joystick/MIDI ports are not supported by this driver. If your 1002 motherboard has these devices, use the ns558 or snd-mpu401 1003 modules, respectively. 1004 1005 The power-management is supported. 1006 1007 Module snd-intel8x0m 1008 -------------------- 1009 1010 Module for Intel ICH (i8x0) chipset MC97 modems. 1011 * Intel i810/810E, i815, i820, i830, i84x, MX440 1012 ICH5, ICH6, ICH7 1013 * SiS 7013 (SiS 735) 1014 * NVidia NForce, NForce2, NForce2s, NForce3 1015 * AMD AMD8111 1016 * ALi m5455 1017 1018 ac97_clock - AC'97 codec clock base (0 = auto-detect) 1019 1020 This module supports one card and autoprobe. 1021 1022 Note: The default index value of this module is -2, i.e. the first 1023 slot is excluded. 1024 1025 The power-management is supported. 1026 1027 Module snd-interwave 1028 -------------------- 1029 1030 Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32 1031 and other sound cards based on AMD InterWave (tm) chip. 1032 1033 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) 1034 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default) 1035 pcm_voices - reserved PCM voices for the synthesizer (default 2) 1036 effect - 1 = InterWave effects enable (default 0); 1037 requires 8 voices 1038 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1039 1040 with isapnp=0, the following options are available: 1041 1042 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260) 1043 irq - IRQ # for InterWave chip (3,5,9,11,12,15) 1044 dma1 - DMA # for InterWave chip (0,1,3,5,6,7) 1045 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable) 1046 1047 This module supports multiple cards, autoprobe and ISA PnP. 1048 1049 Module snd-interwave-stb 1050 ------------------------ 1051 1052 Module for UltraSound 32-Pro (sound card from STB used by Compaq) 1053 and other sound cards based on AMD InterWave (tm) chip with TEA6330T 1054 circuit for extended control of bass, treble and master volume. 1055 1056 joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V) 1057 midi - 1 = MIDI UART enable, 0 = MIDI UART disable (default) 1058 pcm_voices - reserved PCM voices for the synthesizer (default 2) 1059 effect - 1 = InterWave effects enable (default 0); 1060 requires 8 voices 1061 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1062 1063 with isapnp=0, the following options are available: 1064 1065 port - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260) 1066 port_tc - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380) 1067 irq - IRQ # for InterWave chip (3,5,9,11,12,15) 1068 dma1 - DMA # for InterWave chip (0,1,3,5,6,7) 1069 dma2 - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable) 1070 1071 This module supports multiple cards, autoprobe and ISA PnP. 1072 1073 Module snd-korg1212 1074 ------------------- 1075 1076 Module for Korg 1212 IO PCI card 1077 1078 This module supports multiple cards. 1079 1080 Module snd-layla20 1081 ------------------ 1082 1083 Module for Echoaudio Layla20 1084 1085 This module supports multiple cards. 1086 The driver requires the firmware loader support on kernel. 1087 1088 Module snd-layla24 1089 ------------------ 1090 1091 Module for Echoaudio Layla24 1092 1093 This module supports multiple cards. 1094 The driver requires the firmware loader support on kernel. 1095 1096 Module snd-maestro3 1097 ------------------- 1098 1099 Module for Allegro/Maestro3 chips 1100 1101 external_amp - enable external amp (enabled by default) 1102 amp_gpio - GPIO pin number for external amp (0-15) or 1103 -1 for default pin (8 for allegro, 1 for 1104 others) 1105 1106 This module supports autoprobe and multiple chips. 1107 1108 Note: the binding of amplifier is dependent on hardware. 1109 If there is no sound even though all channels are unmuted, try to 1110 specify other gpio connection via amp_gpio option. 1111 For example, a Panasonic notebook might need "amp_gpio=0x0d" 1112 option. 1113 1114 The power-management is supported. 1115 1116 Module snd-mia 1117 --------------- 1118 1119 Module for Echoaudio Mia 1120 1121 This module supports multiple cards. 1122 The driver requires the firmware loader support on kernel. 1123 1124 Module snd-miro 1125 --------------- 1126 1127 Module for Miro soundcards: miroSOUND PCM 1 pro, 1128 miroSOUND PCM 12, 1129 miroSOUND PCM 20 Radio. 1130 1131 port - Port # (0x530,0x604,0xe80,0xf40) 1132 irq - IRQ # (5,7,9,10,11) 1133 dma1 - 1st dma # (0,1,3) 1134 dma2 - 2nd dma # (0,1) 1135 mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330) 1136 mpu_irq - MPU-401 irq # (5,7,9,10) 1137 fm_port - FM Port # (0x388) 1138 wss - enable WSS mode 1139 ide - enable onboard ide support 1140 1141 Module snd-mixart 1142 ----------------- 1143 1144 Module for Digigram miXart8 sound cards. 1145 1146 This module supports multiple cards. 1147 Note: One miXart8 board will be represented as 4 alsa cards. 1148 See MIXART.txt for details. 1149 1150 When the driver is compiled as a module and the hotplug firmware 1151 is supported, the firmware data is loaded via hotplug automatically. 1152 Install the necessary firmware files in alsa-firmware package. 1153 When no hotplug fw loader is available, you need to load the 1154 firmware via mixartloader utility in alsa-tools package. 1155 1156 Module snd-mona 1157 --------------- 1158 1159 Module for Echoaudio Mona 1160 1161 This module supports multiple cards. 1162 The driver requires the firmware loader support on kernel. 1163 1164 Module snd-mpu401 1165 ----------------- 1166 1167 Module for MPU-401 UART devices. 1168 1169 port - port number or -1 (disable) 1170 irq - IRQ number or -1 (disable) 1171 pnp - PnP detection - 0 = disable, 1 = enable (default) 1172 1173 This module supports multiple devices and PnP. 1174 1175 Module snd-msnd-classic 1176 ----------------------- 1177 1178 Module for Turtle Beach MultiSound Classic, Tahiti or Monterey 1179 soundcards. 1180 1181 io - Port # for msnd-classic card 1182 irq - IRQ # for msnd-classic card 1183 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, 1184 0xe0000 or 0xe8000) 1185 write_ndelay - enable write ndelay (default = 1) 1186 calibrate_signal - calibrate signal (default = 0) 1187 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1188 digital - Digital daughterboard present (default = 0) 1189 cfg - Config port (0x250, 0x260 or 0x270) default = PnP 1190 reset - Reset all devices 1191 mpu_io - MPU401 I/O port 1192 mpu_irq - MPU401 irq# 1193 ide_io0 - IDE port #0 1194 ide_io1 - IDE port #1 1195 ide_irq - IDE irq# 1196 joystick_io - Joystick I/O port 1197 1198 The driver requires firmware files "turtlebeach/msndinit.bin" and 1199 "turtlebeach/msndperm.bin" in the proper firmware directory. 1200 1201 See Documentation/sound/oss/MultiSound for important information 1202 about this driver. Note that it has been discontinued, but the 1203 Voyetra Turtle Beach knowledge base entry for it is still available 1204 at 1205 http://www.turtlebeach.com/site/kb_ftp/790.asp 1206 1207 Module snd-msnd-pinnacle 1208 ------------------------ 1209 1210 Module for Turtle Beach MultiSound Pinnacle/Fiji soundcards. 1211 1212 io - Port # for pinnacle/fiji card 1213 irq - IRQ # for pinnalce/fiji card 1214 mem - Memory address (0xb0000, 0xc8000, 0xd0000, 0xd8000, 1215 0xe0000 or 0xe8000) 1216 write_ndelay - enable write ndelay (default = 1) 1217 calibrate_signal - calibrate signal (default = 0) 1218 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1219 1220 The driver requires firmware files "turtlebeach/pndspini.bin" and 1221 "turtlebeach/pndsperm.bin" in the proper firmware directory. 1222 1223 Module snd-mtpav 1224 ---------------- 1225 1226 Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel 1227 port). 1228 1229 port - I/O port # for MTPAV (0x378,0x278, default=0x378) 1230 irq - IRQ # for MTPAV (7,5, default=7) 1231 hwports - number of supported hardware ports, default=8. 1232 1233 Module supports only 1 card. This module has no enable option. 1234 1235 Module snd-mts64 1236 ---------------- 1237 1238 Module for Ego Systems (ESI) Miditerminal 4140 1239 1240 This module supports multiple devices. 1241 Requires parport (CONFIG_PARPORT). 1242 1243 Module snd-nm256 1244 ---------------- 1245 1246 Module for NeoMagic NM256AV/ZX chips 1247 1248 playback_bufsize - max playback frame size in kB (4-128kB) 1249 capture_bufsize - max capture frame size in kB (4-128kB) 1250 force_ac97 - 0 or 1 (disabled by default) 1251 buffer_top - specify buffer top address 1252 use_cache - 0 or 1 (disabled by default) 1253 vaio_hack - alias buffer_top=0x25a800 1254 reset_workaround - enable AC97 RESET workaround for some laptops 1255 reset_workaround2 - enable extended AC97 RESET workaround for some 1256 other laptops 1257 1258 This module supports one chip and autoprobe. 1259 1260 The power-management is supported. 1261 1262 Note: on some notebooks the buffer address cannot be detected 1263 automatically, or causes hang-up during initialization. 1264 In such a case, specify the buffer top address explicitly via 1265 the buffer_top option. 1266 For example, 1267 Sony F250: buffer_top=0x25a800 1268 Sony F270: buffer_top=0x272800 1269 The driver supports only ac97 codec. It's possible to force 1270 to initialize/use ac97 although it's not detected. In such a 1271 case, use force_ac97=1 option - but *NO* guarantee whether it 1272 works! 1273 1274 Note: The NM256 chip can be linked internally with non-AC97 1275 codecs. This driver supports only the AC97 codec, and won't work 1276 with machines with other (most likely CS423x or OPL3SAx) chips, 1277 even though the device is detected in lspci. In such a case, try 1278 other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP 1279 but some doesn't have ISA PnP. You'll need to specify isapnp=0 1280 and proper hardware parameters in the case without ISA PnP. 1281 1282 Note: some laptops need a workaround for AC97 RESET. For the 1283 known hardware like Dell Latitude LS and Sony PCG-F305, this 1284 workaround is enabled automatically. For other laptops with a 1285 hard freeze, you can try reset_workaround=1 option. 1286 1287 Note: Dell Latitude CSx laptops have another problem regarding 1288 AC97 RESET. On these laptops, reset_workaround2 option is 1289 turned on as default. This option is worth to try if the 1290 previous reset_workaround option doesn't help. 1291 1292 Note: This driver is really crappy. It's a porting from the 1293 OSS driver, which is a result of black-magic reverse engineering. 1294 The detection of codec will fail if the driver is loaded *after* 1295 X-server as described above. You might be able to force to load 1296 the module, but it may result in hang-up. Hence, make sure that 1297 you load this module *before* X if you encounter this kind of 1298 problem. 1299 1300 Module snd-opl3sa2 1301 ------------------ 1302 1303 Module for Yamaha OPL3-SA2/SA3 sound cards. 1304 1305 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1306 1307 with isapnp=0, the following options are available: 1308 1309 port - control port # for OPL3-SA chip (0x370) 1310 sb_port - SB port # for OPL3-SA chip (0x220,0x240) 1311 wss_port - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604) 1312 midi_port - port # for MPU-401 UART (0x300,0x330), -1 = disable 1313 fm_port - FM port # for OPL3-SA chip (0x388), -1 = disable 1314 irq - IRQ # for OPL3-SA chip (5,7,9,10) 1315 dma1 - first DMA # for Yamaha OPL3-SA chip (0,1,3) 1316 dma2 - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable 1317 1318 This module supports multiple cards and ISA PnP. It does not support 1319 autoprobe (if ISA PnP is not used) thus all ports must be specified!!! 1320 1321 The power-management is supported. 1322 1323 Module snd-opti92x-ad1848 1324 ------------------------- 1325 1326 Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips. 1327 Module works with OAK Mozart cards as well. 1328 1329 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1330 1331 with isapnp=0, the following options are available: 1332 1333 port - port # for WSS chip (0x530,0xe80,0xf40,0x604) 1334 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) 1335 fm_port - port # for OPL3 device (0x388) 1336 irq - IRQ # for WSS chip (5,7,9,10,11) 1337 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) 1338 dma1 - first DMA # for WSS chip (0,1,3) 1339 1340 This module supports only one card, autoprobe and PnP. 1341 1342 Module snd-opti92x-cs4231 1343 ------------------------- 1344 1345 Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips. 1346 1347 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1348 1349 with isapnp=0, the following options are available: 1350 1351 port - port # for WSS chip (0x530,0xe80,0xf40,0x604) 1352 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) 1353 fm_port - port # for OPL3 device (0x388) 1354 irq - IRQ # for WSS chip (5,7,9,10,11) 1355 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) 1356 dma1 - first DMA # for WSS chip (0,1,3) 1357 dma2 - second DMA # for WSS chip (0,1,3) 1358 1359 This module supports only one card, autoprobe and PnP. 1360 1361 Module snd-opti93x 1362 ------------------ 1363 1364 Module for sound cards based on OPTi 82c93x chips. 1365 1366 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1367 1368 with isapnp=0, the following options are available: 1369 1370 port - port # for WSS chip (0x530,0xe80,0xf40,0x604) 1371 mpu_port - port # for MPU-401 UART (0x300,0x310,0x320,0x330) 1372 fm_port - port # for OPL3 device (0x388) 1373 irq - IRQ # for WSS chip (5,7,9,10,11) 1374 mpu_irq - IRQ # for MPU-401 UART (5,7,9,10) 1375 dma1 - first DMA # for WSS chip (0,1,3) 1376 dma2 - second DMA # for WSS chip (0,1,3) 1377 1378 This module supports only one card, autoprobe and PnP. 1379 1380 Module snd-oxygen 1381 ----------------- 1382 1383 Module for sound cards based on the C-Media CMI8788 chip: 1384 * Asound A-8788 1385 * AuzenTech X-Meridian 1386 * Bgears b-Enspirer 1387 * Club3D Theatron DTS 1388 * HT-Omega Claro (plus) 1389 * HT-Omega Claro halo (XT) 1390 * Razer Barracuda AC-1 1391 * Sondigo Inferno 1392 1393 This module supports autoprobe and multiple cards. 1394 1395 Module snd-pcsp 1396 ----------------- 1397 1398 Module for internal PC-Speaker. 1399 1400 nforce_wa - enable NForce chipset workaround. Expect bad sound. 1401 1402 This module supports system beeps, some kind of PCM playback and 1403 even a few mixer controls. 1404 1405 Module snd-pcxhr 1406 ---------------- 1407 1408 Module for Digigram PCXHR boards 1409 1410 This module supports multiple cards. 1411 1412 Module snd-portman2x4 1413 --------------------- 1414 1415 Module for Midiman Portman 2x4 parallel port MIDI interface 1416 1417 This module supports multiple cards. 1418 1419 Module snd-powermac (on ppc only) 1420 --------------------------------- 1421 1422 Module for PowerMac, iMac and iBook on-board soundchips 1423 1424 enable_beep - enable beep using PCM (enabled as default) 1425 1426 Module supports autoprobe a chip. 1427 1428 Note: the driver may have problems regarding endianess. 1429 1430 The power-management is supported. 1431 1432 Module snd-pxa2xx-ac97 (on arm only) 1433 ------------------------------------ 1434 1435 Module for AC97 driver for the Intel PXA2xx chip 1436 1437 For ARM architecture only. 1438 1439 The power-management is supported. 1440 1441 Module snd-riptide 1442 ------------------ 1443 1444 Module for Conexant Riptide chip 1445 1446 joystick_port - Joystick port # (default: 0x200) 1447 mpu_port - MPU401 port # (default: 0x330) 1448 opl3_port - OPL3 port # (default: 0x388) 1449 1450 This module supports multiple cards. 1451 The driver requires the firmware loader support on kernel. 1452 You need to install the firmware file "riptide.hex" to the standard 1453 firmware path (e.g. /lib/firmware). 1454 1455 Module snd-rme32 1456 ---------------- 1457 1458 Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32, 1459 Prodif96 and Prodif Gold) sound cards. 1460 1461 This module supports multiple cards. 1462 1463 Module snd-rme96 1464 ---------------- 1465 1466 Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards. 1467 1468 This module supports multiple cards. 1469 1470 Module snd-rme9652 1471 ------------------ 1472 1473 Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards. 1474 1475 precise_ptr - Enable precise pointer (doesn't work reliably). 1476 (default = 0) 1477 1478 This module supports multiple cards. 1479 1480 Note: snd-page-alloc module does the job which snd-hammerfall-mem 1481 module did formerly. It will allocate the buffers in advance 1482 when any RME9652 cards are found. To make the buffer 1483 allocation sure, load snd-page-alloc module in the early 1484 stage of boot sequence. See "Early Buffer Allocation" 1485 section. 1486 1487 Module snd-sa11xx-uda1341 (on arm only) 1488 --------------------------------------- 1489 1490 Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card. 1491 1492 Module supports only one card. 1493 Module has no enable and index options. 1494 1495 The power-management is supported. 1496 1497 Module snd-sb8 1498 -------------- 1499 1500 Module for 8-bit SoundBlaster cards: SoundBlaster 1.0, 1501 SoundBlaster 2.0, 1502 SoundBlaster Pro 1503 1504 port - port # for SB DSP chip (0x220,0x240,0x260) 1505 irq - IRQ # for SB DSP chip (5,7,9,10) 1506 dma8 - DMA # for SB DSP chip (1,3) 1507 1508 This module supports multiple cards and autoprobe. 1509 1510 The power-management is supported. 1511 1512 Module snd-sb16 and snd-sbawe 1513 ----------------------------- 1514 1515 Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP), 1516 SoundBlaster AWE 32 (PnP), 1517 SoundBlaster AWE 64 PnP 1518 1519 mic_agc - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default) 1520 csp - ASP/CSP chip support - 0 = disable (default), 1 = enable 1521 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1522 1523 with isapnp=0, the following options are available: 1524 1525 port - port # for SB DSP 4.x chip (0x220,0x240,0x260) 1526 mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disable 1527 awe_port - base port # for EMU8000 synthesizer (0x620,0x640,0x660) 1528 (snd-sbawe module only) 1529 irq - IRQ # for SB DSP 4.x chip (5,7,9,10) 1530 dma8 - 8-bit DMA # for SB DSP 4.x chip (0,1,3) 1531 dma16 - 16-bit DMA # for SB DSP 4.x chip (5,6,7) 1532 1533 This module supports multiple cards, autoprobe and ISA PnP. 1534 1535 Note: To use Vibra16X cards in 16-bit half duplex mode, you must 1536 disable 16bit DMA with dma16 = -1 module parameter. 1537 Also, all Sound Blaster 16 type cards can operate in 16-bit 1538 half duplex mode through 8-bit DMA channel by disabling their 1539 16-bit DMA channel. 1540 1541 The power-management is supported. 1542 1543 Module snd-sc6000 1544 ----------------- 1545 1546 Module for Gallant SC-6000 soundcard. 1547 1548 port - Port # (0x220 or 0x240) 1549 mss_port - MSS Port # (0x530 or 0xe80) 1550 irq - IRQ # (5,7,9,10,11) 1551 mpu_irq - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq 1552 dma - DMA # (1,3,0) 1553 1554 This module supports multiple cards. 1555 1556 This card is also known as Audio Excel DSP 16 or Zoltrix AV302. 1557 1558 Module snd-sgalaxy 1559 ------------------ 1560 1561 Module for Aztech Sound Galaxy sound card. 1562 1563 sbport - Port # for SB16 interface (0x220,0x240) 1564 wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604) 1565 irq - IRQ # (7,9,10,11) 1566 dma1 - DMA # 1567 1568 This module supports multiple cards. 1569 1570 The power-management is supported. 1571 1572 Module snd-sscape 1573 ----------------- 1574 1575 Module for ENSONIQ SoundScape PnP cards. 1576 1577 port - Port # (PnP setup) 1578 wss_port - WSS Port # (PnP setup) 1579 irq - IRQ # (PnP setup) 1580 mpu_irq - MPU-401 IRQ # (PnP setup) 1581 dma - DMA # (PnP setup) 1582 dma2 - 2nd DMA # (PnP setup, -1 to disable) 1583 1584 This module supports multiple cards. ISA PnP must be enabled. 1585 You need sscape_ctl tool in alsa-tools package for loading 1586 the microcode. 1587 1588 Module snd-sun-amd7930 (on sparc only) 1589 -------------------------------------- 1590 1591 Module for AMD7930 sound chips found on Sparcs. 1592 1593 This module supports multiple cards. 1594 1595 Module snd-sun-cs4231 (on sparc only) 1596 ------------------------------------- 1597 1598 Module for CS4231 sound chips found on Sparcs. 1599 1600 This module supports multiple cards. 1601 1602 Module snd-sun-dbri (on sparc only) 1603 ----------------------------------- 1604 1605 Module for DBRI sound chips found on Sparcs. 1606 1607 This module supports multiple cards. 1608 1609 Module snd-wavefront 1610 -------------------- 1611 1612 Module for Turtle Beach Maui, Tropez and Tropez+ sound cards. 1613 1614 use_cs4232_midi - Use CS4232 MPU-401 interface 1615 (inaccessibly located inside your computer) 1616 isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) 1617 1618 with isapnp=0, the following options are available: 1619 1620 cs4232_pcm_port - Port # for CS4232 PCM interface. 1621 cs4232_pcm_irq - IRQ # for CS4232 PCM interface (5,7,9,11,12,15). 1622 cs4232_mpu_port - Port # for CS4232 MPU-401 interface. 1623 cs4232_mpu_irq - IRQ # for CS4232 MPU-401 interface (9,11,12,15). 1624 ics2115_port - Port # for ICS2115 1625 ics2115_irq - IRQ # for ICS2115 1626 fm_port - FM OPL-3 Port # 1627 dma1 - DMA1 # for CS4232 PCM interface. 1628 dma2 - DMA2 # for CS4232 PCM interface. 1629 1630 The below are options for wavefront_synth features: 1631 wf_raw - Assume that we need to boot the OS (default:no) 1632 If yes, then during driver loading, the state of the board is 1633 ignored, and we reset the board and load the firmware anyway. 1634 fx_raw - Assume that the FX process needs help (default:yes) 1635 If false, we'll leave the FX processor in whatever state it is 1636 when the driver is loaded. The default is to download the 1637 microprogram and associated coefficients to set it up for 1638 "default" operation, whatever that means. 1639 debug_default - Debug parameters for card initialization 1640 wait_usecs - How long to wait without sleeping, usecs 1641 (default:150) 1642 This magic number seems to give pretty optimal throughput 1643 based on my limited experimentation. 1644 If you want to play around with it and find a better value, be 1645 my guest. Remember, the idea is to get a number that causes us 1646 to just busy wait for as many WaveFront commands as possible, 1647 without coming up with a number so large that we hog the whole 1648 CPU. 1649 Specifically, with this number, out of about 134,000 status 1650 waits, only about 250 result in a sleep. 1651 sleep_interval - How long to sleep when waiting for reply 1652 (default: 100) 1653 sleep_tries - How many times to try sleeping during a wait 1654 (default: 50) 1655 ospath - Pathname to processed ICS2115 OS firmware 1656 (default:wavefront.os) 1657 The path name of the ISC2115 OS firmware. In the recent 1658 version, it's handled via firmware loader framework, so it 1659 must be installed in the proper path, typically, 1660 /lib/firmware. 1661 reset_time - How long to wait for a reset to take effect 1662 (default:2) 1663 ramcheck_time - How many seconds to wait for the RAM test 1664 (default:20) 1665 osrun_time - How many seconds to wait for the ICS2115 OS 1666 (default:10) 1667 1668 This module supports multiple cards and ISA PnP. 1669 1670 Note: the firmware file "wavefront.os" was located in the earlier 1671 version in /etc. Now it's loaded via firmware loader, and 1672 must be in the proper firmware path, such as /lib/firmware. 1673 Copy (or symlink) the file appropriately if you get an error 1674 regarding firmware downloading after upgrading the kernel. 1675 1676 Module snd-sonicvibes 1677 --------------------- 1678 1679 Module for S3 SonicVibes PCI sound cards. 1680 * PINE Schubert 32 PCI 1681 1682 reverb - Reverb Enable - 1 = enable, 0 = disable (default) 1683 - SoundCard must have onboard SRAM for this. 1684 mge - Mic Gain Enable - 1 = enable, 0 = disable (default) 1685 1686 This module supports multiple cards and autoprobe. 1687 1688 Module snd-serial-u16550 1689 ------------------------ 1690 1691 Module for UART16550A serial MIDI ports. 1692 1693 port - port # for UART16550A chip 1694 irq - IRQ # for UART16550A chip, -1 = poll mode 1695 speed - speed in bauds (9600,19200,38400,57600,115200) 1696 38400 = default 1697 base - base for divisor in bauds (57600,115200,230400,460800) 1698 115200 = default 1699 outs - number of MIDI ports in a serial port (1-4) 1700 1 = default 1701 adaptor - Type of adaptor. 1702 0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A, 1703 3 = MS-124W M/B, 4 = Generic 1704 1705 This module supports multiple cards. This module does not support autoprobe 1706 thus the main port must be specified!!! Other options are optional. 1707 1708 Module snd-trident 1709 ------------------ 1710 1711 Module for Trident 4DWave DX/NX sound cards. 1712 * Best Union Miss Melody 4DWave PCI 1713 * HIS 4DWave PCI 1714 * Warpspeed ONSpeed 4DWave PCI 1715 * AzTech PCI 64-Q3D 1716 * Addonics SV 750 1717 * CHIC True Sound 4Dwave 1718 * Shark Predator4D-PCI 1719 * Jaton SonicWave 4D 1720 * SiS SI7018 PCI Audio 1721 * Hoontech SoundTrack Digital 4DWave NX 1722 1723 pcm_channels - max channels (voices) reserved for PCM 1724 wavetable_size - max wavetable size in kB (4-?kb) 1725 1726 This module supports multiple cards and autoprobe. 1727 1728 The power-management is supported. 1729 1730 Module snd-usb-audio 1731 -------------------- 1732 1733 Module for USB audio and USB MIDI devices. 1734 1735 vid - Vendor ID for the device (optional) 1736 pid - Product ID for the device (optional) 1737 nrpacks - Max. number of packets per URB (default: 8) 1738 async_unlink - Use async unlink mode (default: yes) 1739 device_setup - Device specific magic number (optional) 1740 - Influence depends on the device 1741 - Default: 0x0000 1742 ignore_ctl_error - Ignore any USB-controller regarding mixer 1743 interface (default: no) 1744 1745 This module supports multiple devices, autoprobe and hotplugging. 1746 1747 NB: nrpacks parameter can be modified dynamically via sysfs. 1748 Don't put the value over 20. Changing via sysfs has no sanity 1749 check. 1750 NB: async_unlink=0 would cause Oops. It remains just for 1751 debugging purpose (if any). 1752 NB: ignore_ctl_error=1 may help when you get an error at accessing 1753 the mixer element such as URB error -22. This happens on some 1754 buggy USB device or the controller. 1755 1756 Module snd-usb-caiaq 1757 -------------------- 1758 1759 Module for caiaq UB audio interfaces, 1760 * Native Instruments RigKontrol2 1761 * Native Instruments Kore Controller 1762 * Native Instruments Audio Kontrol 1 1763 * Native Instruments Audio 8 DJ 1764 1765 This module supports multiple devices, autoprobe and hotplugging. 1766 1767 Module snd-usb-usx2y 1768 -------------------- 1769 1770 Module for Tascam USB US-122, US-224 and US-428 devices. 1771 1772 This module supports multiple devices, autoprobe and hotplugging. 1773 1774 Note: you need to load the firmware via usx2yloader utility included 1775 in alsa-tools and alsa-firmware packages. 1776 1777 Module snd-via82xx 1778 ------------------ 1779 1780 Module for AC'97 motherboards based on VIA 82C686A/686B, 8233, 1781 8233A, 8233C, 8235, 8237 (south) bridge. 1782 1783 mpu_port - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup 1784 [VIA686A/686B only] 1785 joystick - Enable joystick (default off) [VIA686A/686B only] 1786 ac97_clock - AC'97 codec clock base (default 48000Hz) 1787 dxs_support - support DXS channels, 1788 0 = auto (default), 1 = enable, 2 = disable, 1789 3 = 48k only, 4 = no VRA, 5 = enable any sample 1790 rate and different sample rates on different 1791 channels 1792 [VIA8233/C, 8235, 8237 only] 1793 ac97_quirk - AC'97 workaround for strange hardware 1794 See "AC97 Quirk Option" section below. 1795 1796 This module supports one chip and autoprobe. 1797 1798 Note: on some SMP motherboards like MSI 694D the interrupts might 1799 not be generated properly. In such a case, please try to 1800 set the SMP (or MPS) version on BIOS to 1.1 instead of 1801 default value 1.4. Then the interrupt number will be 1802 assigned under 15. You might also upgrade your BIOS. 1803 1804 Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound) 1805 channels as the first PCM. On these channels, up to 4 1806 streams can be played at the same time, and the controller 1807 can perform sample rate conversion with separate rates for 1808 each channel. 1809 As default (dxs_support = 0), 48k fixed rate is chosen 1810 except for the known devices since the output is often 1811 noisy except for 48k on some mother boards due to the 1812 bug of BIOS. 1813 Please try once dxs_support=5 and if it works on other 1814 sample rates (e.g. 44.1kHz of mp3 playback), please let us 1815 know the PCI subsystem vendor/device id's (output of 1816 "lspci -nv"). 1817 If dxs_support=5 does not work, try dxs_support=4; if it 1818 doesn't work too, try dxs_support=1. (dxs_support=1 is 1819 usually for old motherboards. The correct implemented 1820 board should work with 4 or 5.) If it still doesn't 1821 work and the default setting is ok, dxs_support=3 is the 1822 right choice. If the default setting doesn't work at all, 1823 try dxs_support=2 to disable the DXS channels. 1824 In any cases, please let us know the result and the 1825 subsystem vendor/device ids. See "Links and Addresses" 1826 below. 1827 1828 Note: for the MPU401 on VIA823x, use snd-mpu401 driver 1829 additionally. The mpu_port option is for VIA686 chips only. 1830 1831 The power-management is supported. 1832 1833 Module snd-via82xx-modem 1834 ------------------------ 1835 1836 Module for VIA82xx AC97 modem 1837 1838 ac97_clock - AC'97 codec clock base (default 48000Hz) 1839 1840 This module supports one card and autoprobe. 1841 1842 Note: The default index value of this module is -2, i.e. the first 1843 slot is excluded. 1844 1845 The power-management is supported. 1846 1847 Module snd-virmidi 1848 ------------------ 1849 1850 Module for virtual rawmidi devices. 1851 This module creates virtual rawmidi devices which communicate 1852 to the corresponding ALSA sequencer ports. 1853 1854 midi_devs - MIDI devices # (1-4, default=4) 1855 1856 This module supports multiple cards. 1857 1858 Module snd-virtuoso 1859 ------------------- 1860 1861 Module for sound cards based on the Asus AV100/AV200 chips, 1862 i.e., Xonar D1, DX, D2, D2X, HDAV1.3 (Deluxe), and Essence STX. 1863 1864 This module supports autoprobe and multiple cards. 1865 1866 Module snd-vx222 1867 ---------------- 1868 1869 Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards. 1870 1871 mic - Enable Microphone on V222 Mic (NYI) 1872 ibl - Capture IBL size. (default = 0, minimum size) 1873 1874 This module supports multiple cards. 1875 1876 When the driver is compiled as a module and the hotplug firmware 1877 is supported, the firmware data is loaded via hotplug automatically. 1878 Install the necessary firmware files in alsa-firmware package. 1879 When no hotplug fw loader is available, you need to load the 1880 firmware via vxloader utility in alsa-tools package. To invoke 1881 vxloader automatically, add the following to /etc/modprobe.conf 1882 1883 install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader 1884 1885 (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to 1886 /etc/modules.conf, instead.) 1887 IBL size defines the interrupts period for PCM. The smaller size 1888 gives smaller latency but leads to more CPU consumption, too. 1889 The size is usually aligned to 126. As default (=0), the smallest 1890 size is chosen. The possible IBL values can be found in 1891 /proc/asound/cardX/vx-status proc file. 1892 1893 The power-management is supported. 1894 1895 Module snd-vxpocket 1896 ------------------- 1897 1898 Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards. 1899 1900 ibl - Capture IBL size. (default = 0, minimum size) 1901 1902 This module supports multiple cards. The module is compiled only when 1903 PCMCIA is supported on kernel. 1904 1905 With the older 2.6.x kernel, to activate the driver via the card 1906 manager, you'll need to set up /etc/pcmcia/vxpocket.conf. See the 1907 sound/pcmcia/vx/vxpocket.c. 2.6.13 or later kernel requires no 1908 longer require a config file. 1909 1910 When the driver is compiled as a module and the hotplug firmware 1911 is supported, the firmware data is loaded via hotplug automatically. 1912 Install the necessary firmware files in alsa-firmware package. 1913 When no hotplug fw loader is available, you need to load the 1914 firmware via vxloader utility in alsa-tools package. 1915 1916 About capture IBL, see the description of snd-vx222 module. 1917 1918 Note: snd-vxp440 driver is merged to snd-vxpocket driver since 1919 ALSA 1.0.10. 1920 1921 The power-management is supported. 1922 1923 Module snd-ymfpci 1924 ----------------- 1925 1926 Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x). 1927 1928 mpu_port - 0x300,0x330,0x332,0x334, 0 (disable) by default, 1929 1 (auto-detect for YMF744/754 only) 1930 fm_port - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default 1931 1 (auto-detect for YMF744/754 only) 1932 joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default, 1933 1 (auto-detect) 1934 rear_switch - enable shared rear/line-in switch (bool) 1935 1936 This module supports autoprobe and multiple chips. 1937 1938 The power-management is supported. 1939 1940 Module snd-pdaudiocf 1941 -------------------- 1942 1943 Module for Sound Core PDAudioCF sound card. 1944 1945 The power-management is supported. 1946 1947 1948 AC97 Quirk Option 1949 ================= 1950 1951 The ac97_quirk option is used to enable/override the workaround for 1952 specific devices on drivers for on-board AC'97 controllers like 1953 snd-intel8x0. Some hardware have swapped output pins between Master 1954 and Headphone, or Surround (thanks to confusion of AC'97 1955 specifications from version to version :-) 1956 1957 The driver provides the auto-detection of known problematic devices, 1958 but some might be unknown or wrongly detected. In such a case, pass 1959 the proper value with this option. 1960 1961 The following strings are accepted: 1962 - default Don't override the default setting 1963 - none Disable the quirk 1964 - hp_only Bind Master and Headphone controls as a single control 1965 - swap_hp Swap headphone and master controls 1966 - swap_surround Swap master and surround controls 1967 - ad_sharing For AD1985, turn on OMS bit and use headphone 1968 - alc_jack For ALC65x, turn on the jack sense mode 1969 - inv_eapd Inverted EAPD implementation 1970 - mute_led Bind EAPD bit for turning on/off mute LED 1971 1972 For backward compatibility, the corresponding integer value -1, 0, 1973 ... are accepted, too. 1974 1975 For example, if "Master" volume control has no effect on your device 1976 but only "Headphone" does, pass ac97_quirk=hp_only module option. 1977 1978 1979 Configuring Non-ISAPNP Cards 1980 ============================ 1981 1982 When the kernel is configured with ISA-PnP support, the modules 1983 supporting the isapnp cards will have module options "isapnp". 1984 If this option is set, *only* the ISA-PnP devices will be probed. 1985 For probing the non ISA-PnP cards, you have to pass "isapnp=0" option 1986 together with the proper i/o and irq configuration. 1987 1988 When the kernel is configured without ISA-PnP support, isapnp option 1989 will be not built in. 1990 1991 1992 Module Autoloading Support 1993 ========================== 1994 1995 The ALSA drivers can be loaded automatically on demand by defining 1996 module aliases. The string 'snd-card-%1' is requested for ALSA native 1997 devices where %i is sound card number from zero to seven. 1998 1999 To auto-load an ALSA driver for OSS services, define the string 2000 'sound-slot-%i' where %i means the slot number for OSS, which 2001 corresponds to the card index of ALSA. Usually, define this 2002 as the same card module. 2003 2004 An example configuration for a single emu10k1 card is like below: 2005 ----- /etc/modprobe.conf 2006 alias snd-card-0 snd-emu10k1 2007 alias sound-slot-0 snd-emu10k1 2008 ----- /etc/modprobe.conf 2009 2010 The available number of auto-loaded sound cards depends on the module 2011 option "cards_limit" of snd module. As default it's set to 1. 2012 To enable the auto-loading of multiple cards, specify the number of 2013 sound cards in that option. 2014 2015 When multiple cards are available, it'd better to specify the index 2016 number for each card via module option, too, so that the order of 2017 cards is kept consistent. 2018 2019 An example configuration for two sound cards is like below: 2020 2021 ----- /etc/modprobe.conf 2022 # ALSA portion 2023 options snd cards_limit=2 2024 alias snd-card-0 snd-interwave 2025 alias snd-card-1 snd-ens1371 2026 options snd-interwave index=0 2027 options snd-ens1371 index=1 2028 # OSS/Free portion 2029 alias sound-slot-0 snd-interwave 2030 alias sound-slot-1 snd-ens1371 2031 ----- /etc/modprobe.conf 2032 2033 In this example, the interwave card is always loaded as the first card 2034 (index 0) and ens1371 as the second (index 1). 2035 2036 Alternative (and new) way to fixate the slot assignment is to use 2037 "slots" option of snd module. In the case above, specify like the 2038 following: 2039 2040 options snd slots=snd-interwave,snd-ens1371 2041 2042 Then, the first slot (#0) is reserved for snd-interwave driver, and 2043 the second (#1) for snd-ens1371. You can omit index option in each 2044 driver if slots option is used (although you can still have them at 2045 the same time as long as they don't conflict). 2046 2047 The slots option is especially useful for avoiding the possible 2048 hot-plugging and the resultant slot conflict. For example, in the 2049 case above again, the first two slots are already reserved. If any 2050 other driver (e.g. snd-usb-audio) is loaded before snd-interwave or 2051 snd-ens1371, it will be assigned to the third or later slot. 2052 2053 When a module name is given with '!', the slot will be given for any 2054 modules but that name. For example, "slots=!snd-pcsp" will reserve 2055 the first slot for any modules but snd-pcsp. 2056 2057 2058 ALSA PCM devices to OSS devices mapping 2059 ======================================= 2060 2061 /dev/snd/pcmC0D0[c|p] -> /dev/audio0 (/dev/audio) -> minor 4 2062 /dev/snd/pcmC0D0[c|p] -> /dev/dsp0 (/dev/dsp) -> minor 3 2063 /dev/snd/pcmC0D1[c|p] -> /dev/adsp0 (/dev/adsp) -> minor 12 2064 /dev/snd/pcmC1D0[c|p] -> /dev/audio1 -> minor 4+16 = 20 2065 /dev/snd/pcmC1D0[c|p] -> /dev/dsp1 -> minor 3+16 = 19 2066 /dev/snd/pcmC1D1[c|p] -> /dev/adsp1 -> minor 12+16 = 28 2067 /dev/snd/pcmC2D0[c|p] -> /dev/audio2 -> minor 4+32 = 36 2068 /dev/snd/pcmC2D0[c|p] -> /dev/dsp2 -> minor 3+32 = 39 2069 /dev/snd/pcmC2D1[c|p] -> /dev/adsp2 -> minor 12+32 = 44 2070 2071 The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means 2072 sound card number and second means device number. The ALSA devices 2073 have either 'c' or 'p' suffix indicating the direction, capture and 2074 playback, respectively. 2075 2076 Please note that the device mapping above may be varied via the module 2077 options of snd-pcm-oss module. 2078 2079 2080 Proc interfaces (/proc/asound) 2081 ============================== 2082 2083 /proc/asound/card#/pcm#[cp]/oss 2084 ------------------------------- 2085 String "erase" - erase all additional informations about OSS applications 2086 String "<app_name> <fragments> <fragment_size> [<options>]" 2087 2088 <app_name> - name of application with (higher priority) or without path 2089 <fragments> - number of fragments or zero if auto 2090 <fragment_size> - size of fragment in bytes or zero if auto 2091 <options> - optional parameters 2092 - disable the application tries to open a pcm device for 2093 this channel but does not want to use it. 2094 (Cause a bug or mmap needs) 2095 It's good for Quake etc... 2096 - direct don't use plugins 2097 - block force block mode (rvplayer) 2098 - non-block force non-block mode 2099 - whole-frag write only whole fragments (optimization affecting 2100 playback only) 2101 - no-silence do not fill silence ahead to avoid clicks 2102 - buggy-ptr Returns the whitespace blocks in GETOPTR ioctl 2103 instead of filled blocks 2104 2105 Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss 2106 echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss 2107 echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss 2108 2109 2110 Early Buffer Allocation 2111 ======================= 2112 2113 Some drivers (e.g. hdsp) require the large contiguous buffers, and 2114 sometimes it's too late to find such spaces when the driver module is 2115 actually loaded due to memory fragmentation. You can pre-allocate the 2116 PCM buffers by loading snd-page-alloc module and write commands to its 2117 proc file in prior, for example, in the early boot stage like 2118 /etc/init.d/*.local scripts. 2119 2120 Reading the proc file /proc/drivers/snd-page-alloc shows the current 2121 usage of page allocation. In writing, you can send the following 2122 commands to the snd-page-alloc driver: 2123 2124 - add VENDOR DEVICE MASK SIZE BUFFERS 2125 2126 VENDOR and DEVICE are PCI vendor and device IDs. They take 2127 integer numbers (0x prefix is needed for the hex). 2128 MASK is the PCI DMA mask. Pass 0 if not restricted. 2129 SIZE is the size of each buffer to allocate. You can pass 2130 k and m suffix for KB and MB. The max number is 16MB. 2131 BUFFERS is the number of buffers to allocate. It must be greater 2132 than 0. The max number is 4. 2133 2134 - erase 2135 2136 This will erase the all pre-allocated buffers which are not in 2137 use. 2138 2139 2140 Links and Addresses 2141 =================== 2142 2143 ALSA project homepage 2144 http://www.alsa-project.org 2145 2146 Kernel Bugzilla 2147 http://bugzilla.kernel.org/ 2148 2149 ALSA Developers ML 2150 mailto:alsa-devel[AT]alsa-project[DOT]org 2151 2152 alsa-info.sh script 2153 http://www.alsa-project.org/alsa-info.sh