1What: /sys/bus/iio/devices/iio:deviceX 2KernelVersion: 2.6.35 3Contact: linux-iio@vger.kernel.org 4Description: 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 9What: /sys/bus/iio/devices/triggerX 10KernelVersion: 2.6.35 11Contact: linux-iio@vger.kernel.org 12Description: 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 22What: /sys/bus/iio/devices/iio:deviceX/buffer 23KernelVersion: 2.6.35 24Contact: linux-iio@vger.kernel.org 25Description: 26 Directory of attributes relating to the buffer for the device. 27 28What: /sys/bus/iio/devices/iio:deviceX/name 29KernelVersion: 2.6.35 30Contact: linux-iio@vger.kernel.org 31Description: 32 Description of the physical chip / device for device X. 33 Typically a part number. 34 35What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency 36What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency 37What: /sys/bus/iio/devices/triggerX/sampling_frequency 38KernelVersion: 2.6.35 39Contact: linux-iio@vger.kernel.org 40Description: 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 datardy 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 50What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 51What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 52What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 53KernelVersion: 2.6.35 54Contact: linux-iio@vger.kernel.org 55Description: 56 When the internal sampling clock can only take a small 57 discrete set of values, this file lists those available. 58 59What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 60KernelVersion: 2.6.38 61Contact: linux-iio@vger.kernel.org 62Description: 63 Hardware dependent ADC oversampling. Controls the sampling ratio 64 of the digital filter if available. 65 66What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 67KernelVersion: 2.6.38 68Contact: linux-iio@vger.kernel.org 69Description: 70 Hardware dependent values supported by the oversampling filter. 71 72What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 73What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 74KernelVersion: 2.6.35 75Contact: linux-iio@vger.kernel.org 76Description: 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 84What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 85KernelVersion: 2.6.35 86Contact: linux-iio@vger.kernel.org 87Description: 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 95What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 96KernelVersion: 3.2 97Contact: linux-iio@vger.kernel.org 98Description: 99 Raw capacitance measurement from channel Y. Units after 100 application of scale and offset are nanofarads. 101 102What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw 103KernelVersion: 3.2 104Contact: linux-iio@vger.kernel.org 105Description: 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 113What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 114What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw 115What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 116What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 117What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw 118KernelVersion: 2.6.35 119Contact: linux-iio@vger.kernel.org 120Description: 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 Celsuis. 126 127What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input 128KernelVersion: 2.6.38 129Contact: linux-iio@vger.kernel.org 130Description: 131 Scaled temperature measurement in milli degrees Celsius. 132 133What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 134What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 135What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 136KernelVersion: 2.6.35 137Contact: linux-iio@vger.kernel.org 138Description: 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 144What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 145What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 146What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 147KernelVersion: 2.6.35 148Contact: linux-iio@vger.kernel.org 149Description: 150 Angular velocity about axis x, y or z (may be arbitrarily 151 assigned) Data converted by application of offset then scale to 152 radians per second. Has all the equivalent parameters as 153 per voltageY. Units after application of scale and offset are 154 radians per second. 155 156What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 157What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 158What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 159KernelVersion: 2.6.35 160Contact: linux-iio@vger.kernel.org 161Description: 162 Inclination raw reading about axis x, y or z (may be 163 arbitrarily assigned). Data converted by application of offset 164 and scale to Degrees. 165 166What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 167What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 168What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 169KernelVersion: 2.6.35 170Contact: linux-iio@vger.kernel.org 171Description: 172 Magnetic field along axis x, y or z (may be arbitrarily 173 assigned). Data converted by application of offset 174 then scale to Gauss. 175 176What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 177What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 178What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 179KernelVersion: 2.6.36 180Contact: linux-iio@vger.kernel.org 181Description: 182 Highest value since some reset condition. These 183 attributes allow access to this and are otherwise 184 the direct equivalent of the <type>Y[_name]_raw attributes. 185 186What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 187KernelVersion: 2.6.36 188Contact: linux-iio@vger.kernel.org 189Description: 190 A computed peak value based on the sum squared magnitude of 191 the underlying value in the specified directions. 192 193What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 194What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 195What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 196What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 197What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 198What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 199What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 200What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 201KernelVersion: 2.6.35 202Contact: linux-iio@vger.kernel.org 203Description: 204 If known for a device, offset to be added to <type>[Y]_raw prior 205 to scaling by <type>[Y]_scale in order to obtain value in the 206 <type> units as specified in <type>[y]_raw documentation. 207 Not present if the offset is always 0 or unknown. If Y or 208 axis <x|y|z> is not present, then the offset applies to all 209 in channels of <type>. 210 May be writable if a variable offset can be applied on the 211 device. Note that this is different to calibbias which 212 is for devices (or drivers) that apply offsets to compensate 213 for variation between different instances of the part, typically 214 adjusted by using some hardware supported calibration procedure. 215 Calibbias is applied internally, offset is applied in userspace 216 to the _raw output. 217 218What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 219What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 220What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 221What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 222What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 223What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 224What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 225What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 226What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 227What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 228What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 229What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 230KernelVersion: 2.6.35 231Contact: linux-iio@vger.kernel.org 232Description: 233 If known for a device, scale to be applied to <type>Y[_name]_raw 234 post addition of <type>[Y][_name]_offset in order to obtain the 235 measured value in <type> units as specified in 236 <type>[Y][_name]_raw documentation. If shared across all in 237 channels then Y and <x|y|z> are not present and the value is 238 called <type>[Y][_name]_scale. The peak modifier means this 239 value is applied to <type>Y[_name]_peak_raw values. 240 241What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 242What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 243What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 244What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 245What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 246What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 247What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 248What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 249KernelVersion: 2.6.35 250Contact: linux-iio@vger.kernel.org 251Description: 252 Hardware applied calibration offset. (assumed to fix production 253 inaccuracies). 254 255What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 256What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 257What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 258What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 259What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 260What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 261What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 262What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 263What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 264what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 265what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 266KernelVersion: 2.6.35 267Contact: linux-iio@vger.kernel.org 268Description: 269 Hardware applied calibration scale factor. (assumed to fix 270 production inaccuracies). If shared across all channels, 271 <type>_calibscale is used. 272 273What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 274What: /sys/.../iio:deviceX/in_voltageX_scale_available 275What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 276What: /sys/.../iio:deviceX/out_voltageX_scale_available 277What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 278What: /sys/.../iio:deviceX/in_capacitance_scale_available 279KernelVersion: 2.635 280Contact: linux-iio@vger.kernel.org 281Description: 282 If a discrete set of scale values are available, they 283 are listed in this attribute. 284 285What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 286KernelVersion: 2.6.35 287Contact: linux-iio@vger.kernel.org 288Description: 289 Hardware applied gain factor. If shared across all channels, 290 <type>_hardwaregain is used. 291 292What: /sys/.../in_accel_filter_low_pass_3db_frequency 293What: /sys/.../in_magn_filter_low_pass_3db_frequency 294What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 295KernelVersion: 3.2 296Contact: linux-iio@vger.kernel.org 297Description: 298 If a known or controllable low pass filter is applied 299 to the underlying data channel, then this parameter 300 gives the 3dB frequency of the filter in Hz. 301 302What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 303What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 304KernelVersion: 2.6.37 305Contact: linux-iio@vger.kernel.org 306Description: 307 Raw (unscaled, no bias etc.) output voltage for 308 channel Y. The number must always be specified and 309 unique if the output corresponds to a single channel. 310 While DAC like devices typically use out_voltage, 311 a continuous frequency generating device, such as 312 a DDS or PLL should use out_altvoltage. 313 314What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 315What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 316KernelVersion: 2.6.37 317Contact: linux-iio@vger.kernel.org 318Description: 319 Raw (unscaled, no bias etc.) output voltage for an aggregate of 320 channel Y, channel Z, etc. This interface is available in cases 321 where a single output sets the value for multiple channels 322 simultaneously. 323 324What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 325What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 326What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 327What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 328KernelVersion: 2.6.38 329Contact: linux-iio@vger.kernel.org 330Description: 331 Specifies the output powerdown mode. 332 DAC output stage is disconnected from the amplifier and 333 1kohm_to_gnd: connected to ground via an 1kOhm resistor 334 100kohm_to_gnd: connected to ground via an 100kOhm resistor 335 three_state: left floating 336 For a list of available output power down options read 337 outX_powerdown_mode_available. If Y is not present the 338 mode is shared across all outputs. 339 340What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available 341What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 342What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available 343What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 344KernelVersion: 2.6.38 345Contact: linux-iio@vger.kernel.org 346Description: 347 Lists all available output power down modes. 348 If Y is not present the mode is shared across all outputs. 349 350What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 351What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 352What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 353What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 354KernelVersion: 2.6.38 355Contact: linux-iio@vger.kernel.org 356Description: 357 Writing 1 causes output Y to enter the power down mode specified 358 by the corresponding outY_powerdown_mode. Clearing returns to 359 normal operation. Y may be suppressed if all outputs are 360 controlled together. 361 362What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 363KernelVersion: 3.4.0 364Contact: linux-iio@vger.kernel.org 365Description: 366 Output frequency for channel Y in Hz. The number must always be 367 specified and unique if the output corresponds to a single 368 channel. 369 370What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 371KernelVersion: 3.4.0 372Contact: linux-iio@vger.kernel.org 373Description: 374 Phase in radians of one frequency/clock output Y 375 (out_altvoltageY) relative to another frequency/clock output 376 (out_altvoltageZ) of the device X. The number must always be 377 specified and unique if the output corresponds to a single 378 channel. 379 380What: /sys/bus/iio/devices/iio:deviceX/events 381KernelVersion: 2.6.35 382Contact: linux-iio@vger.kernel.org 383Description: 384 Configuration of which hardware generated events are passed up 385 to user-space. 386 387What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 388What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 389What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 390What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 391What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 392What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 393What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 394What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 395What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 396What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 397What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 398What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 399What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 400What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 401What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 402What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 403What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 404What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 405What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 406What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 407What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 408What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 409What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 410What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 411KernelVersion: 2.6.37 412Contact: linux-iio@vger.kernel.org 413Description: 414 Event generated when channel passes a threshold in the specified 415 (_rising|_falling) direction. If the direction is not specified, 416 then either the device will report an event which ever direction 417 a single threshold value is passed in (e.g. 418 <type>[Y][_name]_<raw|input>_thresh_value) or 419 <type>[Y][_name]_<raw|input>_thresh_rising_value and 420 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 421 different values, but the device can only enable both thresholds 422 or neither. 423 Note the driver will assume the last p events requested are 424 to be enabled where p is however many it supports (which may 425 vary depending on the exact set requested. So if you want to be 426 sure you have set what you think you have, check the contents of 427 these attributes after everything is configured. Drivers may 428 have to buffer any parameters so that they are consistent when 429 a given event type is enabled a future point (and not those for 430 whatever event was previously enabled). 431 432What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 433What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 434What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 435What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 436What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 437What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 438What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 439What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 440What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 441What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 442What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 443What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 444What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 445What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 446What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 447What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 448What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 449What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 450What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 451What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 452What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 453What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 454What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 455What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 456KernelVersion: 2.6.37 457Contact: linux-iio@vger.kernel.org 458Description: 459 Event generated when channel passes a threshold on the rate of 460 change (1st differential) in the specified (_rising|_falling) 461 direction. If the direction is not specified, then either the 462 device will report an event which ever direction a single 463 threshold value is passed in (e.g. 464 <type>[Y][_name]_<raw|input>_roc_value) or 465 <type>[Y][_name]_<raw|input>_roc_rising_value and 466 <type>[Y][_name]_<raw|input>_roc_falling_value may take 467 different values, but the device can only enable both rate of 468 change thresholds or neither. 469 Note the driver will assume the last p events requested are 470 to be enabled where p is however many it supports (which may 471 vary depending on the exact set requested. So if you want to be 472 sure you have set what you think you have, check the contents of 473 these attributes after everything is configured. Drivers may 474 have to buffer any parameters so that they are consistent when 475 a given event type is enabled a future point (and not those for 476 whatever event was previously enabled). 477 478What: /sys/.../events/in_accel_x_raw_thresh_rising_value 479What: /sys/.../events/in_accel_x_raw_thresh_falling_value 480What: /sys/.../events/in_accel_y_raw_thresh_rising_value 481What: /sys/.../events/in_accel_y_raw_thresh_falling_value 482What: /sys/.../events/in_accel_z_raw_thresh_rising_value 483What: /sys/.../events/in_accel_z_raw_thresh_falling_value 484What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 485What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 486What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 487What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 488What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 489What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 490What: /sys/.../events/in_magn_x_raw_thresh_rising_value 491What: /sys/.../events/in_magn_x_raw_thresh_falling_value 492What: /sys/.../events/in_magn_y_raw_thresh_rising_value 493What: /sys/.../events/in_magn_y_raw_thresh_falling_value 494What: /sys/.../events/in_magn_z_raw_thresh_rising_value 495What: /sys/.../events/in_magn_z_raw_thresh_falling_value 496What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 497What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 498What: /sys/.../events/in_voltageY_raw_thresh_rising_value 499What: /sys/.../events/in_voltageY_raw_thresh_falling_value 500What: /sys/.../events/in_tempY_raw_thresh_rising_value 501What: /sys/.../events/in_tempY_raw_thresh_falling_value 502What: /sys/.../events/in_illuminance0_thresh_falling_value 503what: /sys/.../events/in_illuminance0_thresh_rising_value 504what: /sys/.../events/in_proximity0_thresh_falling_value 505what: /sys/.../events/in_proximity0_thresh_rising_value 506KernelVersion: 2.6.37 507Contact: linux-iio@vger.kernel.org 508Description: 509 Specifies the value of threshold that the device is comparing 510 against for the events enabled by 511 <type>Y[_name]_thresh[_rising|falling]_en. 512 If separate attributes exist for the two directions, but 513 direction is not specified for this attribute, then a single 514 threshold value applies to both directions. 515 The raw or input element of the name indicates whether the 516 value is in raw device units or in processed units (as _raw 517 and _input do on sysfs direct channel read attributes). 518 519What: /sys/.../events/in_accel_x_raw_roc_rising_value 520What: /sys/.../events/in_accel_x_raw_roc_falling_value 521What: /sys/.../events/in_accel_y_raw_roc_rising_value 522What: /sys/.../events/in_accel_y_raw_roc_falling_value 523What: /sys/.../events/in_accel_z_raw_roc_rising_value 524What: /sys/.../events/in_accel_z_raw_roc_falling_value 525What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 526What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 527What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 528What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 529What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 530What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 531What: /sys/.../events/in_magn_x_raw_roc_rising_value 532What: /sys/.../events/in_magn_x_raw_roc_falling_value 533What: /sys/.../events/in_magn_y_raw_roc_rising_value 534What: /sys/.../events/in_magn_y_raw_roc_falling_value 535What: /sys/.../events/in_magn_z_raw_roc_rising_value 536What: /sys/.../events/in_magn_z_raw_roc_falling_value 537What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 538What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 539What: /sys/.../events/in_voltageY_raw_roc_rising_value 540What: /sys/.../events/in_voltageY_raw_roc_falling_value 541What: /sys/.../events/in_tempY_raw_roc_rising_value 542What: /sys/.../events/in_tempY_raw_roc_falling_value 543KernelVersion: 2.6.37 544Contact: linux-iio@vger.kernel.org 545Description: 546 Specifies the value of rate of change threshold that the 547 device is comparing against for the events enabled by 548 <type>[Y][_name]_roc[_rising|falling]_en. 549 If separate attributes exist for the two directions, 550 but direction is not specified for this attribute, 551 then a single threshold value applies to both directions. 552 The raw or input element of the name indicates whether the 553 value is in raw device units or in processed units (as _raw 554 and _input do on sysfs direct channel read attributes). 555 556What: /sys/.../events/in_accel_x_thresh_rising_period 557What: /sys/.../events/in_accel_x_thresh_falling_period 558hat: /sys/.../events/in_accel_x_roc_rising_period 559What: /sys/.../events/in_accel_x_roc_falling_period 560What: /sys/.../events/in_accel_y_thresh_rising_period 561What: /sys/.../events/in_accel_y_thresh_falling_period 562What: /sys/.../events/in_accel_y_roc_rising_period 563What: /sys/.../events/in_accel_y_roc_falling_period 564What: /sys/.../events/in_accel_z_thresh_rising_period 565What: /sys/.../events/in_accel_z_thresh_falling_period 566What: /sys/.../events/in_accel_z_roc_rising_period 567What: /sys/.../events/in_accel_z_roc_falling_period 568What: /sys/.../events/in_anglvel_x_thresh_rising_period 569What: /sys/.../events/in_anglvel_x_thresh_falling_period 570What: /sys/.../events/in_anglvel_x_roc_rising_period 571What: /sys/.../events/in_anglvel_x_roc_falling_period 572What: /sys/.../events/in_anglvel_y_thresh_rising_period 573What: /sys/.../events/in_anglvel_y_thresh_falling_period 574What: /sys/.../events/in_anglvel_y_roc_rising_period 575What: /sys/.../events/in_anglvel_y_roc_falling_period 576What: /sys/.../events/in_anglvel_z_thresh_rising_period 577What: /sys/.../events/in_anglvel_z_thresh_falling_period 578What: /sys/.../events/in_anglvel_z_roc_rising_period 579What: /sys/.../events/in_anglvel_z_roc_falling_period 580What: /sys/.../events/in_magn_x_thresh_rising_period 581What: /sys/.../events/in_magn_x_thresh_falling_period 582What: /sys/.../events/in_magn_x_roc_rising_period 583What: /sys/.../events/in_magn_x_roc_falling_period 584What: /sys/.../events/in_magn_y_thresh_rising_period 585What: /sys/.../events/in_magn_y_thresh_falling_period 586What: /sys/.../events/in_magn_y_roc_rising_period 587What: /sys/.../events/in_magn_y_roc_falling_period 588What: /sys/.../events/in_magn_z_thresh_rising_period 589What: /sys/.../events/in_magn_z_thresh_falling_period 590What: /sys/.../events/in_magn_z_roc_rising_period 591What: /sys/.../events/in_magn_z_roc_falling_period 592What: /sys/.../events/in_voltageY_supply_thresh_rising_period 593What: /sys/.../events/in_voltageY_supply_thresh_falling_period 594What: /sys/.../events/in_voltageY_supply_roc_rising_period 595What: /sys/.../events/in_voltageY_supply_roc_falling_period 596What: /sys/.../events/in_voltageY_thresh_rising_period 597What: /sys/.../events/in_voltageY_thresh_falling_period 598What: /sys/.../events/in_voltageY_roc_rising_period 599What: /sys/.../events/in_voltageY_roc_falling_period 600What: /sys/.../events/in_tempY_thresh_rising_period 601What: /sys/.../events/in_tempY_thresh_falling_period 602What: /sys/.../events/in_tempY_roc_rising_period 603What: /sys/.../events/in_tempY_roc_falling_period 604What: /sys/.../events/in_accel_x&y&z_mag_falling_period 605What: /sys/.../events/in_intensity0_thresh_period 606What: /sys/.../events/in_proximity0_thresh_period 607KernelVersion: 2.6.37 608Contact: linux-iio@vger.kernel.org 609Description: 610 Period of time (in seconds) for which the condition must be 611 met before an event is generated. If direction is not 612 specified then this period applies to both directions. 613 614What: /sys/.../iio:deviceX/events/in_accel_mag_en 615What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 616What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 617What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 618What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 619What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 620What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 621What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 622What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 623What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 624What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 625What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 626What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 627What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 628KernelVersion: 2.6.37 629Contact: linux-iio@vger.kernel.org 630Description: 631 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 632 magnitude of the channel is compared to the threshold, not its 633 signed value. 634 635What: /sys/.../events/in_accel_raw_mag_value 636What: /sys/.../events/in_accel_x_raw_mag_rising_value 637What: /sys/.../events/in_accel_y_raw_mag_rising_value 638What: /sys/.../events/in_accel_z_raw_mag_rising_value 639KernelVersion: 2.6.37 640Contact: linux-iio@vger.kernel.org 641Description: 642 The value to which the magnitude of the channel is compared. If 643 number or direction is not specified, applies to all channels of 644 this type. 645 646What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 647KernelVersion: 2.6.35 648Contact: linux-iio@vger.kernel.org 649Description: 650 The name of the trigger source being used, as per string given 651 in /sys/class/iio/triggerY/name. 652 653What: /sys/bus/iio/devices/iio:deviceX/buffer/length 654KernelVersion: 2.6.35 655Contact: linux-iio@vger.kernel.org 656Description: 657 Number of scans contained by the buffer. 658 659What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum 660KernelVersion: 2.6.37 661Contact: linux-iio@vger.kernel.org 662Description: 663 Bytes per scan. Due to alignment fun, the scan may be larger 664 than implied directly by the scan_element parameters. 665 666What: /sys/bus/iio/devices/iio:deviceX/buffer/enable 667KernelVersion: 2.6.35 668Contact: linux-iio@vger.kernel.org 669Description: 670 Actually start the buffer capture up. Will start trigger 671 if first device and appropriate. 672 673What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements 674KernelVersion: 2.6.37 675Contact: linux-iio@vger.kernel.org 676Description: 677 Directory containing interfaces for elements that will be 678 captured for a single triggered sample set in the buffer. 679 680What: /sys/.../buffer/scan_elements/in_accel_x_en 681What: /sys/.../buffer/scan_elements/in_accel_y_en 682What: /sys/.../buffer/scan_elements/in_accel_z_en 683What: /sys/.../buffer/scan_elements/in_anglvel_x_en 684What: /sys/.../buffer/scan_elements/in_anglvel_y_en 685What: /sys/.../buffer/scan_elements/in_anglvel_z_en 686What: /sys/.../buffer/scan_elements/in_magn_x_en 687What: /sys/.../buffer/scan_elements/in_magn_y_en 688What: /sys/.../buffer/scan_elements/in_magn_z_en 689What: /sys/.../buffer/scan_elements/in_timestamp_en 690What: /sys/.../buffer/scan_elements/in_voltageY_supply_en 691What: /sys/.../buffer/scan_elements/in_voltageY_en 692What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en 693What: /sys/.../buffer/scan_elements/in_incli_x_en 694What: /sys/.../buffer/scan_elements/in_incli_y_en 695KernelVersion: 2.6.37 696Contact: linux-iio@vger.kernel.org 697Description: 698 Scan element control for triggered data capture. 699 700What: /sys/.../buffer/scan_elements/in_accel_type 701What: /sys/.../buffer/scan_elements/in_anglvel_type 702What: /sys/.../buffer/scan_elements/in_magn_type 703What: /sys/.../buffer/scan_elements/in_incli_type 704What: /sys/.../buffer/scan_elements/in_voltageY_type 705What: /sys/.../buffer/scan_elements/in_voltage-in_type 706What: /sys/.../buffer/scan_elements/in_voltageY_supply_type 707What: /sys/.../buffer/scan_elements/in_timestamp_type 708KernelVersion: 2.6.37 709Contact: linux-iio@vger.kernel.org 710Description: 711 Description of the scan element data storage within the buffer 712 and hence the form in which it is read from user-space. 713 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 714 be or le specifies big or little endian. s or u specifies if 715 signed (2's complement) or unsigned. bits is the number of bits 716 of data and storagebits is the space (after padding) that it 717 occupies in the buffer. shift if specified, is the shift that 718 needs to be applied prior to masking out unused bits. Some 719 devices put their data in the middle of the transferred elements 720 with additional information on both sides. Note that some 721 devices will have additional information in the unused bits 722 so to get a clean value, the bits value must be used to mask 723 the buffer output value appropriately. The storagebits value 724 also specifies the data alignment. So s48/64>>2 will be a 725 signed 48 bit integer stored in a 64 bit location aligned to 726 a a64 bit boundary. To obtain the clean value, shift right 2 727 and apply a mask to zero the top 16 bits of the result. 728 For other storage combinations this attribute will be extended 729 appropriately. 730 731What: /sys/.../buffer/scan_elements/in_accel_type_available 732KernelVersion: 2.6.37 733Contact: linux-iio@vger.kernel.org 734Description: 735 If the type parameter can take one of a small set of values, 736 this attribute lists them. 737 738What: /sys/.../buffer/scan_elements/in_voltageY_index 739What: /sys/.../buffer/scan_elements/in_voltageY_supply_index 740What: /sys/.../buffer/scan_elements/in_accel_x_index 741What: /sys/.../buffer/scan_elements/in_accel_y_index 742What: /sys/.../buffer/scan_elements/in_accel_z_index 743What: /sys/.../buffer/scan_elements/in_anglvel_x_index 744What: /sys/.../buffer/scan_elements/in_anglvel_y_index 745What: /sys/.../buffer/scan_elements/in_anglvel_z_index 746What: /sys/.../buffer/scan_elements/in_magn_x_index 747What: /sys/.../buffer/scan_elements/in_magn_y_index 748What: /sys/.../buffer/scan_elements/in_magn_z_index 749What: /sys/.../buffer/scan_elements/in_incli_x_index 750What: /sys/.../buffer/scan_elements/in_incli_y_index 751What: /sys/.../buffer/scan_elements/in_timestamp_index 752KernelVersion: 2.6.37 753Contact: linux-iio@vger.kernel.org 754Description: 755 A single positive integer specifying the position of this 756 scan element in the buffer. Note these are not dependent on 757 what is enabled and may not be contiguous. Thus for user-space 758 to establish the full layout these must be used in conjunction 759 with all _en attributes to establish which channels are present, 760 and the relevant _type attributes to establish the data storage 761 format. 762 763What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 764KernelVersion: 2.6.38 765Contact: linux-iio@vger.kernel.org 766Description: 767 This attribute is used to read the amount of quadrature error 768 present in the device at a given time. 769