Based on kernel version 3.9. Page generated on 2013-05-02 22:53 EST.
1 What: /sys/bus/iio/devices/iio:deviceX 2 KernelVersion: 2.6.35 3 Contact: linux-iio@vger.kernel.org 4 Description: 5 Hardware chip or device accessed by one communication port. 6 Corresponds to a grouping of sensor channels. X is the IIO 7 index of the device. 8 9 What: /sys/bus/iio/devices/triggerX 10 KernelVersion: 2.6.35 11 Contact: linux-iio@vger.kernel.org 12 Description: 13 An event driven driver of data capture to an in kernel buffer. 14 May be provided by a device driver that also has an IIO device 15 based on hardware generated events (e.g. data ready) or 16 provided by a separate driver for other hardware (e.g. 17 periodic timer, GPIO or high resolution timer). 18 Contains trigger type specific elements. These do not 19 generalize well and hence are not documented in this file. 20 X is the IIO index of the trigger. 21 22 What: /sys/bus/iio/devices/iio:deviceX/buffer 23 KernelVersion: 2.6.35 24 Contact: linux-iio@vger.kernel.org 25 Description: 26 Directory of attributes relating to the buffer for the device. 27 28 What: /sys/bus/iio/devices/iio:deviceX/name 29 KernelVersion: 2.6.35 30 Contact: linux-iio@vger.kernel.org 31 Description: 32 Description of the physical chip / device for device X. 33 Typically a part number. 34 35 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency 36 What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency 37 What: /sys/bus/iio/devices/triggerX/sampling_frequency 38 KernelVersion: 2.6.35 39 Contact: linux-iio@vger.kernel.org 40 Description: 41 Some devices have internal clocks. This parameter sets the 42 resulting sampling frequency. In many devices this 43 parameter has an effect on input filters etc. rather than 44 simply controlling when the input is sampled. As this 45 effects data ready triggers, hardware buffers and the sysfs 46 direct access interfaces, it may be found in any of the 47 relevant directories. If it effects all of the above 48 then it is to be found in the base device directory. 49 50 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 51 What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 52 What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 53 KernelVersion: 2.6.35 54 Contact: linux-iio@vger.kernel.org 55 Description: 56 When the internal sampling clock can only take a small 57 discrete set of values, this file lists those available. 58 59 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 60 KernelVersion: 2.6.38 61 Contact: linux-iio@vger.kernel.org 62 Description: 63 Hardware dependent ADC oversampling. Controls the sampling ratio 64 of the digital filter if available. 65 66 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 67 KernelVersion: 2.6.38 68 Contact: linux-iio@vger.kernel.org 69 Description: 70 Hardware dependent values supported by the oversampling filter. 71 72 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 73 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 74 KernelVersion: 2.6.35 75 Contact: linux-iio@vger.kernel.org 76 Description: 77 Raw (unscaled no bias removal etc.) voltage measurement from 78 channel Y. In special cases where the channel does not 79 correspond to externally available input one of the named 80 versions may be used. The number must always be specified and 81 unique to allow association with event codes. Units after 82 application of scale and offset are microvolts. 83 84 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 85 KernelVersion: 2.6.35 86 Contact: linux-iio@vger.kernel.org 87 Description: 88 Raw (unscaled) differential voltage measurement equivalent to 89 channel Y - channel Z where these channel numbers apply to the 90 physically equivalent inputs when non differential readings are 91 separately available. In differential only parts, then all that 92 is required is a consistent labeling. Units after application 93 of scale and offset are microvolts. 94 95 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 96 KernelVersion: 3.2 97 Contact: linux-iio@vger.kernel.org 98 Description: 99 Raw capacitance measurement from channel Y. Units after 100 application of scale and offset are nanofarads. 101 102 What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw 103 KernelVersion: 3.2 104 Contact: linux-iio@vger.kernel.org 105 Description: 106 Raw differential capacitance measurement equivalent to 107 channel Y - channel Z where these channel numbers apply to the 108 physically equivalent inputs when non differential readings are 109 separately available. In differential only parts, then all that 110 is required is a consistent labeling. Units after application 111 of scale and offset are nanofarads. 112 113 What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 114 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw 115 What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 116 What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 117 What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw 118 KernelVersion: 2.6.35 119 Contact: linux-iio@vger.kernel.org 120 Description: 121 Raw (unscaled no bias removal etc.) temperature measurement. 122 If an axis is specified it generally means that the temperature 123 sensor is associated with one part of a compound device (e.g. 124 a gyroscope axis). Units after application of scale and offset 125 are milli degrees Celsius. 126 127 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input 128 KernelVersion: 2.6.38 129 Contact: linux-iio@vger.kernel.org 130 Description: 131 Scaled temperature measurement in milli degrees Celsius. 132 133 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 134 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 135 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 136 KernelVersion: 2.6.35 137 Contact: linux-iio@vger.kernel.org 138 Description: 139 Acceleration in direction x, y or z (may be arbitrarily assigned 140 but should match other such assignments on device). 141 Has all of the equivalent parameters as per voltageY. Units 142 after application of scale and offset are m/s^2. 143 144 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 145 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 146 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 147 KernelVersion: 2.6.35 148 Contact: linux-iio@vger.kernel.org 149 Description: 150 Angular velocity about axis x, y or z (may be arbitrarily 151 assigned). Has all the equivalent parameters as per voltageY. 152 Units after application of scale and offset are radians per 153 second. 154 155 What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 156 What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 157 What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 158 KernelVersion: 2.6.35 159 Contact: linux-iio@vger.kernel.org 160 Description: 161 Inclination raw reading about axis x, y or z (may be 162 arbitrarily assigned). Data converted by application of offset 163 and scale to degrees. 164 165 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 166 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 167 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 168 KernelVersion: 2.6.35 169 Contact: linux-iio@vger.kernel.org 170 Description: 171 Magnetic field along axis x, y or z (may be arbitrarily 172 assigned). Data converted by application of offset 173 then scale to Gauss. 174 175 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 176 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 177 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 178 KernelVersion: 2.6.36 179 Contact: linux-iio@vger.kernel.org 180 Description: 181 Highest value since some reset condition. These 182 attributes allow access to this and are otherwise 183 the direct equivalent of the <type>Y[_name]_raw attributes. 184 185 What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 186 KernelVersion: 2.6.36 187 Contact: linux-iio@vger.kernel.org 188 Description: 189 A computed peak value based on the sum squared magnitude of 190 the underlying value in the specified directions. 191 192 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw 193 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw 194 KernelVersion: 3.8 195 Contact: linux-iio@vger.kernel.org 196 Description: 197 Raw pressure measurement from channel Y. Units after 198 application of scale and offset are kilopascal. 199 200 What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 201 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 202 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 203 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 204 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 205 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 206 What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 207 What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 208 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset 209 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset 210 KernelVersion: 2.6.35 211 Contact: linux-iio@vger.kernel.org 212 Description: 213 If known for a device, offset to be added to <type>[Y]_raw prior 214 to scaling by <type>[Y]_scale in order to obtain value in the 215 <type> units as specified in <type>[Y]_raw documentation. 216 Not present if the offset is always 0 or unknown. If Y or 217 axis <x|y|z> is not present, then the offset applies to all 218 in channels of <type>. 219 May be writable if a variable offset can be applied on the 220 device. Note that this is different to calibbias which 221 is for devices (or drivers) that apply offsets to compensate 222 for variation between different instances of the part, typically 223 adjusted by using some hardware supported calibration procedure. 224 Calibbias is applied internally, offset is applied in userspace 225 to the _raw output. 226 227 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 228 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 229 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 230 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 231 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 232 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 233 What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 234 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 235 What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 236 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 237 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 238 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 239 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale 240 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale 241 KernelVersion: 2.6.35 242 Contact: linux-iio@vger.kernel.org 243 Description: 244 If known for a device, scale to be applied to <type>Y[_name]_raw 245 post addition of <type>[Y][_name]_offset in order to obtain the 246 measured value in <type> units as specified in 247 <type>[Y][_name]_raw documentation. If shared across all in 248 channels then Y and <x|y|z> are not present and the value is 249 called <type>[Y][_name]_scale. The peak modifier means this 250 value is applied to <type>Y[_name]_peak_raw values. 251 252 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 253 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 254 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 255 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 256 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 257 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 258 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 259 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 260 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias 261 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias 262 KernelVersion: 2.6.35 263 Contact: linux-iio@vger.kernel.org 264 Description: 265 Hardware applied calibration offset (assumed to fix production 266 inaccuracies). 267 268 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 269 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 270 What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 271 What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 272 What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 273 What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 274 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 275 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 276 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 277 what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 278 what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 279 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale 280 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale 281 KernelVersion: 2.6.35 282 Contact: linux-iio@vger.kernel.org 283 Description: 284 Hardware applied calibration scale factor (assumed to fix 285 production inaccuracies). If shared across all channels, 286 <type>_calibscale is used. 287 288 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 289 What: /sys/.../iio:deviceX/in_voltageX_scale_available 290 What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 291 What: /sys/.../iio:deviceX/out_voltageX_scale_available 292 What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 293 What: /sys/.../iio:deviceX/in_capacitance_scale_available 294 What: /sys/.../iio:deviceX/in_pressure_scale_available 295 What: /sys/.../iio:deviceX/in_pressureY_scale_available 296 KernelVersion: 2.6.35 297 Contact: linux-iio@vger.kernel.org 298 Description: 299 If a discrete set of scale values is available, they 300 are listed in this attribute. 301 302 What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 303 KernelVersion: 2.6.35 304 Contact: linux-iio@vger.kernel.org 305 Description: 306 Hardware applied gain factor. If shared across all channels, 307 <type>_hardwaregain is used. 308 309 What: /sys/.../in_accel_filter_low_pass_3db_frequency 310 What: /sys/.../in_magn_filter_low_pass_3db_frequency 311 What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 312 KernelVersion: 3.2 313 Contact: linux-iio@vger.kernel.org 314 Description: 315 If a known or controllable low pass filter is applied 316 to the underlying data channel, then this parameter 317 gives the 3dB frequency of the filter in Hz. 318 319 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 320 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 321 KernelVersion: 2.6.37 322 Contact: linux-iio@vger.kernel.org 323 Description: 324 Raw (unscaled, no bias etc.) output voltage for 325 channel Y. The number must always be specified and 326 unique if the output corresponds to a single channel. 327 While DAC like devices typically use out_voltage, 328 a continuous frequency generating device, such as 329 a DDS or PLL should use out_altvoltage. 330 331 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 332 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 333 KernelVersion: 2.6.37 334 Contact: linux-iio@vger.kernel.org 335 Description: 336 Raw (unscaled, no bias etc.) output voltage for an aggregate of 337 channel Y, channel Z, etc. This interface is available in cases 338 where a single output sets the value for multiple channels 339 simultaneously. 340 341 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 342 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 343 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 344 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 345 KernelVersion: 2.6.38 346 Contact: linux-iio@vger.kernel.org 347 Description: 348 Specifies the output powerdown mode. 349 DAC output stage is disconnected from the amplifier and 350 1kohm_to_gnd: connected to ground via an 1kOhm resistor, 351 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 352 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 353 100kohm_to_gnd: connected to ground via an 100kOhm resistor, 354 three_state: left floating. 355 For a list of available output power down options read 356 outX_powerdown_mode_available. If Y is not present the 357 mode is shared across all outputs. 358 359 What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available 360 What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 361 What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available 362 What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 363 KernelVersion: 2.6.38 364 Contact: linux-iio@vger.kernel.org 365 Description: 366 Lists all available output power down modes. 367 If Y is not present the mode is shared across all outputs. 368 369 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 370 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 371 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 372 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 373 KernelVersion: 2.6.38 374 Contact: linux-iio@vger.kernel.org 375 Description: 376 Writing 1 causes output Y to enter the power down mode specified 377 by the corresponding outY_powerdown_mode. DAC output stage is 378 disconnected from the amplifier. Clearing returns to normal 379 operation. Y may be suppressed if all outputs are controlled 380 together. 381 382 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 383 KernelVersion: 3.4.0 384 Contact: linux-iio@vger.kernel.org 385 Description: 386 Output frequency for channel Y in Hz. The number must always be 387 specified and unique if the output corresponds to a single 388 channel. 389 390 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 391 KernelVersion: 3.4.0 392 Contact: linux-iio@vger.kernel.org 393 Description: 394 Phase in radians of one frequency/clock output Y 395 (out_altvoltageY) relative to another frequency/clock output 396 (out_altvoltageZ) of the device X. The number must always be 397 specified and unique if the output corresponds to a single 398 channel. 399 400 What: /sys/bus/iio/devices/iio:deviceX/events 401 KernelVersion: 2.6.35 402 Contact: linux-iio@vger.kernel.org 403 Description: 404 Configuration of which hardware generated events are passed up 405 to user-space. 406 407 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 408 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 409 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 410 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 411 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 412 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 413 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 414 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 415 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 416 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 417 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 418 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 419 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 420 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 421 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 422 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 423 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 424 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 425 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 426 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 427 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 428 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 429 What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 430 What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 431 KernelVersion: 2.6.37 432 Contact: linux-iio@vger.kernel.org 433 Description: 434 Event generated when channel passes a threshold in the specified 435 (_rising|_falling) direction. If the direction is not specified, 436 then either the device will report an event which ever direction 437 a single threshold value is passed in (e.g. 438 <type>[Y][_name]_<raw|input>_thresh_value) or 439 <type>[Y][_name]_<raw|input>_thresh_rising_value and 440 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 441 different values, but the device can only enable both thresholds 442 or neither. 443 Note the driver will assume the last p events requested are 444 to be enabled where p is how many it supports (which may vary 445 depending on the exact set requested. So if you want to be 446 sure you have set what you think you have, check the contents of 447 these attributes after everything is configured. Drivers may 448 have to buffer any parameters so that they are consistent when 449 a given event type is enabled at a future point (and not those for 450 whatever event was previously enabled). 451 452 What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 453 What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 454 What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 455 What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 456 What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 457 What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 458 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 459 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 460 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 461 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 462 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 463 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 464 What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 465 What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 466 What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 467 What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 468 What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 469 What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 470 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 471 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 472 What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 473 What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 474 What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 475 What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 476 KernelVersion: 2.6.37 477 Contact: linux-iio@vger.kernel.org 478 Description: 479 Event generated when channel passes a threshold on the rate of 480 change (1st differential) in the specified (_rising|_falling) 481 direction. If the direction is not specified, then either the 482 device will report an event which ever direction a single 483 threshold value is passed in (e.g. 484 <type>[Y][_name]_<raw|input>_roc_value) or 485 <type>[Y][_name]_<raw|input>_roc_rising_value and 486 <type>[Y][_name]_<raw|input>_roc_falling_value may take 487 different values, but the device can only enable both rate of 488 change thresholds or neither. 489 Note the driver will assume the last p events requested are 490 to be enabled where p is however many it supports (which may 491 vary depending on the exact set requested. So if you want to be 492 sure you have set what you think you have, check the contents of 493 these attributes after everything is configured. Drivers may 494 have to buffer any parameters so that they are consistent when 495 a given event type is enabled a future point (and not those for 496 whatever event was previously enabled). 497 498 What: /sys/.../events/in_accel_x_raw_thresh_rising_value 499 What: /sys/.../events/in_accel_x_raw_thresh_falling_value 500 What: /sys/.../events/in_accel_y_raw_thresh_rising_value 501 What: /sys/.../events/in_accel_y_raw_thresh_falling_value 502 What: /sys/.../events/in_accel_z_raw_thresh_rising_value 503 What: /sys/.../events/in_accel_z_raw_thresh_falling_value 504 What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 505 What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 506 What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 507 What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 508 What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 509 What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 510 What: /sys/.../events/in_magn_x_raw_thresh_rising_value 511 What: /sys/.../events/in_magn_x_raw_thresh_falling_value 512 What: /sys/.../events/in_magn_y_raw_thresh_rising_value 513 What: /sys/.../events/in_magn_y_raw_thresh_falling_value 514 What: /sys/.../events/in_magn_z_raw_thresh_rising_value 515 What: /sys/.../events/in_magn_z_raw_thresh_falling_value 516 What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 517 What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 518 What: /sys/.../events/in_voltageY_raw_thresh_rising_value 519 What: /sys/.../events/in_voltageY_raw_thresh_falling_value 520 What: /sys/.../events/in_tempY_raw_thresh_rising_value 521 What: /sys/.../events/in_tempY_raw_thresh_falling_value 522 What: /sys/.../events/in_illuminance0_thresh_falling_value 523 what: /sys/.../events/in_illuminance0_thresh_rising_value 524 what: /sys/.../events/in_proximity0_thresh_falling_value 525 what: /sys/.../events/in_proximity0_thresh_rising_value 526 KernelVersion: 2.6.37 527 Contact: linux-iio@vger.kernel.org 528 Description: 529 Specifies the value of threshold that the device is comparing 530 against for the events enabled by 531 <type>Y[_name]_thresh[_rising|falling]_en. 532 If separate attributes exist for the two directions, but 533 direction is not specified for this attribute, then a single 534 threshold value applies to both directions. 535 The raw or input element of the name indicates whether the 536 value is in raw device units or in processed units (as _raw 537 and _input do on sysfs direct channel read attributes). 538 539 What: /sys/.../events/in_accel_x_raw_roc_rising_value 540 What: /sys/.../events/in_accel_x_raw_roc_falling_value 541 What: /sys/.../events/in_accel_y_raw_roc_rising_value 542 What: /sys/.../events/in_accel_y_raw_roc_falling_value 543 What: /sys/.../events/in_accel_z_raw_roc_rising_value 544 What: /sys/.../events/in_accel_z_raw_roc_falling_value 545 What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 546 What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 547 What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 548 What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 549 What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 550 What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 551 What: /sys/.../events/in_magn_x_raw_roc_rising_value 552 What: /sys/.../events/in_magn_x_raw_roc_falling_value 553 What: /sys/.../events/in_magn_y_raw_roc_rising_value 554 What: /sys/.../events/in_magn_y_raw_roc_falling_value 555 What: /sys/.../events/in_magn_z_raw_roc_rising_value 556 What: /sys/.../events/in_magn_z_raw_roc_falling_value 557 What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 558 What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 559 What: /sys/.../events/in_voltageY_raw_roc_rising_value 560 What: /sys/.../events/in_voltageY_raw_roc_falling_value 561 What: /sys/.../events/in_tempY_raw_roc_rising_value 562 What: /sys/.../events/in_tempY_raw_roc_falling_value 563 KernelVersion: 2.6.37 564 Contact: linux-iio@vger.kernel.org 565 Description: 566 Specifies the value of rate of change threshold that the 567 device is comparing against for the events enabled by 568 <type>[Y][_name]_roc[_rising|falling]_en. 569 If separate attributes exist for the two directions, 570 but direction is not specified for this attribute, 571 then a single threshold value applies to both directions. 572 The raw or input element of the name indicates whether the 573 value is in raw device units or in processed units (as _raw 574 and _input do on sysfs direct channel read attributes). 575 576 What: /sys/.../events/in_accel_x_thresh_rising_period 577 What: /sys/.../events/in_accel_x_thresh_falling_period 578 hat: /sys/.../events/in_accel_x_roc_rising_period 579 What: /sys/.../events/in_accel_x_roc_falling_period 580 What: /sys/.../events/in_accel_y_thresh_rising_period 581 What: /sys/.../events/in_accel_y_thresh_falling_period 582 What: /sys/.../events/in_accel_y_roc_rising_period 583 What: /sys/.../events/in_accel_y_roc_falling_period 584 What: /sys/.../events/in_accel_z_thresh_rising_period 585 What: /sys/.../events/in_accel_z_thresh_falling_period 586 What: /sys/.../events/in_accel_z_roc_rising_period 587 What: /sys/.../events/in_accel_z_roc_falling_period 588 What: /sys/.../events/in_anglvel_x_thresh_rising_period 589 What: /sys/.../events/in_anglvel_x_thresh_falling_period 590 What: /sys/.../events/in_anglvel_x_roc_rising_period 591 What: /sys/.../events/in_anglvel_x_roc_falling_period 592 What: /sys/.../events/in_anglvel_y_thresh_rising_period 593 What: /sys/.../events/in_anglvel_y_thresh_falling_period 594 What: /sys/.../events/in_anglvel_y_roc_rising_period 595 What: /sys/.../events/in_anglvel_y_roc_falling_period 596 What: /sys/.../events/in_anglvel_z_thresh_rising_period 597 What: /sys/.../events/in_anglvel_z_thresh_falling_period 598 What: /sys/.../events/in_anglvel_z_roc_rising_period 599 What: /sys/.../events/in_anglvel_z_roc_falling_period 600 What: /sys/.../events/in_magn_x_thresh_rising_period 601 What: /sys/.../events/in_magn_x_thresh_falling_period 602 What: /sys/.../events/in_magn_x_roc_rising_period 603 What: /sys/.../events/in_magn_x_roc_falling_period 604 What: /sys/.../events/in_magn_y_thresh_rising_period 605 What: /sys/.../events/in_magn_y_thresh_falling_period 606 What: /sys/.../events/in_magn_y_roc_rising_period 607 What: /sys/.../events/in_magn_y_roc_falling_period 608 What: /sys/.../events/in_magn_z_thresh_rising_period 609 What: /sys/.../events/in_magn_z_thresh_falling_period 610 What: /sys/.../events/in_magn_z_roc_rising_period 611 What: /sys/.../events/in_magn_z_roc_falling_period 612 What: /sys/.../events/in_voltageY_supply_thresh_rising_period 613 What: /sys/.../events/in_voltageY_supply_thresh_falling_period 614 What: /sys/.../events/in_voltageY_supply_roc_rising_period 615 What: /sys/.../events/in_voltageY_supply_roc_falling_period 616 What: /sys/.../events/in_voltageY_thresh_rising_period 617 What: /sys/.../events/in_voltageY_thresh_falling_period 618 What: /sys/.../events/in_voltageY_roc_rising_period 619 What: /sys/.../events/in_voltageY_roc_falling_period 620 What: /sys/.../events/in_tempY_thresh_rising_period 621 What: /sys/.../events/in_tempY_thresh_falling_period 622 What: /sys/.../events/in_tempY_roc_rising_period 623 What: /sys/.../events/in_tempY_roc_falling_period 624 What: /sys/.../events/in_accel_x&y&z_mag_falling_period 625 What: /sys/.../events/in_intensity0_thresh_period 626 What: /sys/.../events/in_proximity0_thresh_period 627 KernelVersion: 2.6.37 628 Contact: linux-iio@vger.kernel.org 629 Description: 630 Period of time (in seconds) for which the condition must be 631 met before an event is generated. If direction is not 632 specified then this period applies to both directions. 633 634 What: /sys/.../iio:deviceX/events/in_accel_mag_en 635 What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 636 What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 637 What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 638 What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 639 What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 640 What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 641 What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 642 What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 643 What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 644 What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 645 What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 646 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 647 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 648 KernelVersion: 2.6.37 649 Contact: linux-iio@vger.kernel.org 650 Description: 651 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 652 magnitude of the channel is compared to the threshold, not its 653 signed value. 654 655 What: /sys/.../events/in_accel_raw_mag_value 656 What: /sys/.../events/in_accel_x_raw_mag_rising_value 657 What: /sys/.../events/in_accel_y_raw_mag_rising_value 658 What: /sys/.../events/in_accel_z_raw_mag_rising_value 659 KernelVersion: 2.6.37 660 Contact: linux-iio@vger.kernel.org 661 Description: 662 The value to which the magnitude of the channel is compared. If 663 number or direction is not specified, applies to all channels of 664 this type. 665 666 What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 667 KernelVersion: 2.6.35 668 Contact: linux-iio@vger.kernel.org 669 Description: 670 The name of the trigger source being used, as per string given 671 in /sys/class/iio/triggerY/name. 672 673 What: /sys/bus/iio/devices/iio:deviceX/buffer/length 674 KernelVersion: 2.6.35 675 Contact: linux-iio@vger.kernel.org 676 Description: 677 Number of scans contained by the buffer. 678 679 What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum 680 KernelVersion: 2.6.37 681 Contact: linux-iio@vger.kernel.org 682 Description: 683 Bytes per scan. Due to alignment fun, the scan may be larger 684 than implied directly by the scan_element parameters. 685 686 What: /sys/bus/iio/devices/iio:deviceX/buffer/enable 687 KernelVersion: 2.6.35 688 Contact: linux-iio@vger.kernel.org 689 Description: 690 Actually start the buffer capture up. Will start trigger 691 if first device and appropriate. 692 693 What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements 694 KernelVersion: 2.6.37 695 Contact: linux-iio@vger.kernel.org 696 Description: 697 Directory containing interfaces for elements that will be 698 captured for a single triggered sample set in the buffer. 699 700 What: /sys/.../buffer/scan_elements/in_accel_x_en 701 What: /sys/.../buffer/scan_elements/in_accel_y_en 702 What: /sys/.../buffer/scan_elements/in_accel_z_en 703 What: /sys/.../buffer/scan_elements/in_anglvel_x_en 704 What: /sys/.../buffer/scan_elements/in_anglvel_y_en 705 What: /sys/.../buffer/scan_elements/in_anglvel_z_en 706 What: /sys/.../buffer/scan_elements/in_magn_x_en 707 What: /sys/.../buffer/scan_elements/in_magn_y_en 708 What: /sys/.../buffer/scan_elements/in_magn_z_en 709 What: /sys/.../buffer/scan_elements/in_timestamp_en 710 What: /sys/.../buffer/scan_elements/in_voltageY_supply_en 711 What: /sys/.../buffer/scan_elements/in_voltageY_en 712 What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en 713 What: /sys/.../buffer/scan_elements/in_incli_x_en 714 What: /sys/.../buffer/scan_elements/in_incli_y_en 715 What: /sys/.../buffer/scan_elements/in_pressureY_en 716 What: /sys/.../buffer/scan_elements/in_pressure_en 717 KernelVersion: 2.6.37 718 Contact: linux-iio@vger.kernel.org 719 Description: 720 Scan element control for triggered data capture. 721 722 What: /sys/.../buffer/scan_elements/in_accel_type 723 What: /sys/.../buffer/scan_elements/in_anglvel_type 724 What: /sys/.../buffer/scan_elements/in_magn_type 725 What: /sys/.../buffer/scan_elements/in_incli_type 726 What: /sys/.../buffer/scan_elements/in_voltageY_type 727 What: /sys/.../buffer/scan_elements/in_voltage_type 728 What: /sys/.../buffer/scan_elements/in_voltageY_supply_type 729 What: /sys/.../buffer/scan_elements/in_timestamp_type 730 What: /sys/.../buffer/scan_elements/in_pressureY_type 731 What: /sys/.../buffer/scan_elements/in_pressure_type 732 KernelVersion: 2.6.37 733 Contact: linux-iio@vger.kernel.org 734 Description: 735 Description of the scan element data storage within the buffer 736 and hence the form in which it is read from user-space. 737 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 738 be or le specifies big or little endian. s or u specifies if 739 signed (2's complement) or unsigned. bits is the number of bits 740 of data and storagebits is the space (after padding) that it 741 occupies in the buffer. shift if specified, is the shift that 742 needs to be applied prior to masking out unused bits. Some 743 devices put their data in the middle of the transferred elements 744 with additional information on both sides. Note that some 745 devices will have additional information in the unused bits 746 so to get a clean value, the bits value must be used to mask 747 the buffer output value appropriately. The storagebits value 748 also specifies the data alignment. So s48/64>>2 will be a 749 signed 48 bit integer stored in a 64 bit location aligned to 750 a 64 bit boundary. To obtain the clean value, shift right 2 751 and apply a mask to zero the top 16 bits of the result. 752 For other storage combinations this attribute will be extended 753 appropriately. 754 755 What: /sys/.../buffer/scan_elements/in_accel_type_available 756 KernelVersion: 2.6.37 757 Contact: linux-iio@vger.kernel.org 758 Description: 759 If the type parameter can take one of a small set of values, 760 this attribute lists them. 761 762 What: /sys/.../buffer/scan_elements/in_voltageY_index 763 What: /sys/.../buffer/scan_elements/in_voltageY_supply_index 764 What: /sys/.../buffer/scan_elements/in_accel_x_index 765 What: /sys/.../buffer/scan_elements/in_accel_y_index 766 What: /sys/.../buffer/scan_elements/in_accel_z_index 767 What: /sys/.../buffer/scan_elements/in_anglvel_x_index 768 What: /sys/.../buffer/scan_elements/in_anglvel_y_index 769 What: /sys/.../buffer/scan_elements/in_anglvel_z_index 770 What: /sys/.../buffer/scan_elements/in_magn_x_index 771 What: /sys/.../buffer/scan_elements/in_magn_y_index 772 What: /sys/.../buffer/scan_elements/in_magn_z_index 773 What: /sys/.../buffer/scan_elements/in_incli_x_index 774 What: /sys/.../buffer/scan_elements/in_incli_y_index 775 What: /sys/.../buffer/scan_elements/in_timestamp_index 776 What: /sys/.../buffer/scan_elements/in_pressureY_index 777 What: /sys/.../buffer/scan_elements/in_pressure_index 778 KernelVersion: 2.6.37 779 Contact: linux-iio@vger.kernel.org 780 Description: 781 A single positive integer specifying the position of this 782 scan element in the buffer. Note these are not dependent on 783 what is enabled and may not be contiguous. Thus for user-space 784 to establish the full layout these must be used in conjunction 785 with all _en attributes to establish which channels are present, 786 and the relevant _type attributes to establish the data storage 787 format. 788 789 What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 790 KernelVersion: 2.6.38 791 Contact: linux-iio@vger.kernel.org 792 Description: 793 This attribute is used to read the amount of quadrature error 794 present in the device at a given time.