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 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 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 millivolts. 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 millivolts. 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 Celsius. 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). Has all the equivalent parameters as per voltageY. 152 Units after application of scale and offset are radians per 153 second. 154 155What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 156What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 157What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 158KernelVersion: 2.6.35 159Contact: linux-iio@vger.kernel.org 160Description: 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 165What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 166What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 167What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 168KernelVersion: 2.6.35 169Contact: linux-iio@vger.kernel.org 170Description: 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 175What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 176What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 177What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 178KernelVersion: 2.6.36 179Contact: linux-iio@vger.kernel.org 180Description: 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 185What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 186KernelVersion: 2.6.36 187Contact: linux-iio@vger.kernel.org 188Description: 189 A computed peak value based on the sum squared magnitude of 190 the underlying value in the specified directions. 191 192What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw 193What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw 194KernelVersion: 3.8 195Contact: linux-iio@vger.kernel.org 196Description: 197 Raw pressure measurement from channel Y. Units after 198 application of scale and offset are kilopascal. 199 200What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 201What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 202What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 203What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 204What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 205What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 206What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 207What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 208What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset 209What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset 210KernelVersion: 2.6.35 211Contact: linux-iio@vger.kernel.org 212Description: 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 227What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 228What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 229What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 230What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 231What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 232What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 233What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 234What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 235What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 236What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 237What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 238What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 239What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale 240What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale 241KernelVersion: 2.6.35 242Contact: linux-iio@vger.kernel.org 243Description: 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 252What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 253What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 254What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 255What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 256What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 257What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 258What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 259What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 260What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias 261What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias 262KernelVersion: 2.6.35 263Contact: linux-iio@vger.kernel.org 264Description: 265 Hardware applied calibration offset (assumed to fix production 266 inaccuracies). 267 268What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 269What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 270What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 271What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 272What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 273What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 274What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 275What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 276What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 277what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 278what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 279What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale 280What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale 281KernelVersion: 2.6.35 282Contact: linux-iio@vger.kernel.org 283Description: 284 Hardware applied calibration scale factor (assumed to fix 285 production inaccuracies). If shared across all channels, 286 <type>_calibscale is used. 287 288What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 289What: /sys/.../iio:deviceX/in_voltageX_scale_available 290What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 291What: /sys/.../iio:deviceX/out_voltageX_scale_available 292What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 293What: /sys/.../iio:deviceX/in_capacitance_scale_available 294What: /sys/.../iio:deviceX/in_pressure_scale_available 295What: /sys/.../iio:deviceX/in_pressureY_scale_available 296KernelVersion: 2.6.35 297Contact: linux-iio@vger.kernel.org 298Description: 299 If a discrete set of scale values is available, they 300 are listed in this attribute. 301 302What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 303KernelVersion: 2.6.35 304Contact: linux-iio@vger.kernel.org 305Description: 306 Hardware applied gain factor. If shared across all channels, 307 <type>_hardwaregain is used. 308 309What: /sys/.../in_accel_filter_low_pass_3db_frequency 310What: /sys/.../in_magn_filter_low_pass_3db_frequency 311What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 312KernelVersion: 3.2 313Contact: linux-iio@vger.kernel.org 314Description: 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 319What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 320What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 321KernelVersion: 2.6.37 322Contact: linux-iio@vger.kernel.org 323Description: 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 331What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 332What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 333KernelVersion: 2.6.37 334Contact: linux-iio@vger.kernel.org 335Description: 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 341What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 342What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 343What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 344What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 345KernelVersion: 2.6.38 346Contact: linux-iio@vger.kernel.org 347Description: 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 500kohm_to_gnd: connected to ground via a 500kOhm resistor, 355 three_state: left floating. 356 For a list of available output power down options read 357 outX_powerdown_mode_available. If Y is not present the 358 mode is shared across all outputs. 359 360What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available 361What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 362What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available 363What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 364KernelVersion: 2.6.38 365Contact: linux-iio@vger.kernel.org 366Description: 367 Lists all available output power down modes. 368 If Y is not present the mode is shared across all outputs. 369 370What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 371What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 372What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 373What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 374KernelVersion: 2.6.38 375Contact: linux-iio@vger.kernel.org 376Description: 377 Writing 1 causes output Y to enter the power down mode specified 378 by the corresponding outY_powerdown_mode. DAC output stage is 379 disconnected from the amplifier. Clearing returns to normal 380 operation. Y may be suppressed if all outputs are controlled 381 together. 382 383What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 384KernelVersion: 3.4.0 385Contact: linux-iio@vger.kernel.org 386Description: 387 Output frequency for channel Y in Hz. The number must always be 388 specified and unique if the output corresponds to a single 389 channel. 390 391What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 392KernelVersion: 3.4.0 393Contact: linux-iio@vger.kernel.org 394Description: 395 Phase in radians of one frequency/clock output Y 396 (out_altvoltageY) relative to another frequency/clock output 397 (out_altvoltageZ) of the device X. The number must always be 398 specified and unique if the output corresponds to a single 399 channel. 400 401What: /sys/bus/iio/devices/iio:deviceX/events 402KernelVersion: 2.6.35 403Contact: linux-iio@vger.kernel.org 404Description: 405 Configuration of which hardware generated events are passed up 406 to user-space. 407 408What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 409What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 410What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 411What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 412What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 413What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 414What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 415What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 416What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 417What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 418What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 419What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 420What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 421What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 422What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 423What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 424What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 425What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 426What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 427What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 428What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 429What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 430What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 431What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 432KernelVersion: 2.6.37 433Contact: linux-iio@vger.kernel.org 434Description: 435 Event generated when channel passes a threshold in the specified 436 (_rising|_falling) direction. If the direction is not specified, 437 then either the device will report an event which ever direction 438 a single threshold value is passed in (e.g. 439 <type>[Y][_name]_<raw|input>_thresh_value) or 440 <type>[Y][_name]_<raw|input>_thresh_rising_value and 441 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 442 different values, but the device can only enable both thresholds 443 or neither. 444 Note the driver will assume the last p events requested are 445 to be enabled where p is how many it supports (which may vary 446 depending on the exact set requested. So if you want to be 447 sure you have set what you think you have, check the contents of 448 these attributes after everything is configured. Drivers may 449 have to buffer any parameters so that they are consistent when 450 a given event type is enabled at a future point (and not those for 451 whatever event was previously enabled). 452 453What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 454What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 455What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 456What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 457What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 458What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 459What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 460What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 461What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 462What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 463What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 464What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 465What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 466What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 467What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 468What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 469What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 470What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 471What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 472What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 473What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 474What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 475What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 476What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 477KernelVersion: 2.6.37 478Contact: linux-iio@vger.kernel.org 479Description: 480 Event generated when channel passes a threshold on the rate of 481 change (1st differential) in the specified (_rising|_falling) 482 direction. If the direction is not specified, then either the 483 device will report an event which ever direction a single 484 threshold value is passed in (e.g. 485 <type>[Y][_name]_<raw|input>_roc_value) or 486 <type>[Y][_name]_<raw|input>_roc_rising_value and 487 <type>[Y][_name]_<raw|input>_roc_falling_value may take 488 different values, but the device can only enable both rate of 489 change thresholds or neither. 490 Note the driver will assume the last p events requested are 491 to be enabled where p is however many it supports (which may 492 vary depending on the exact set requested. So if you want to be 493 sure you have set what you think you have, check the contents of 494 these attributes after everything is configured. Drivers may 495 have to buffer any parameters so that they are consistent when 496 a given event type is enabled a future point (and not those for 497 whatever event was previously enabled). 498 499What: /sys/.../events/in_accel_x_raw_thresh_rising_value 500What: /sys/.../events/in_accel_x_raw_thresh_falling_value 501What: /sys/.../events/in_accel_y_raw_thresh_rising_value 502What: /sys/.../events/in_accel_y_raw_thresh_falling_value 503What: /sys/.../events/in_accel_z_raw_thresh_rising_value 504What: /sys/.../events/in_accel_z_raw_thresh_falling_value 505What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 506What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 507What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 508What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 509What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 510What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 511What: /sys/.../events/in_magn_x_raw_thresh_rising_value 512What: /sys/.../events/in_magn_x_raw_thresh_falling_value 513What: /sys/.../events/in_magn_y_raw_thresh_rising_value 514What: /sys/.../events/in_magn_y_raw_thresh_falling_value 515What: /sys/.../events/in_magn_z_raw_thresh_rising_value 516What: /sys/.../events/in_magn_z_raw_thresh_falling_value 517What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 518What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 519What: /sys/.../events/in_voltageY_raw_thresh_rising_value 520What: /sys/.../events/in_voltageY_raw_thresh_falling_value 521What: /sys/.../events/in_tempY_raw_thresh_rising_value 522What: /sys/.../events/in_tempY_raw_thresh_falling_value 523What: /sys/.../events/in_illuminance0_thresh_falling_value 524what: /sys/.../events/in_illuminance0_thresh_rising_value 525what: /sys/.../events/in_proximity0_thresh_falling_value 526what: /sys/.../events/in_proximity0_thresh_rising_value 527KernelVersion: 2.6.37 528Contact: linux-iio@vger.kernel.org 529Description: 530 Specifies the value of threshold that the device is comparing 531 against for the events enabled by 532 <type>Y[_name]_thresh[_rising|falling]_en. 533 If separate attributes exist for the two directions, but 534 direction is not specified for this attribute, then a single 535 threshold value applies to both directions. 536 The raw or input element of the name indicates whether the 537 value is in raw device units or in processed units (as _raw 538 and _input do on sysfs direct channel read attributes). 539 540What: /sys/.../events/in_accel_x_thresh_rising_hysteresis 541What: /sys/.../events/in_accel_x_thresh_falling_hysteresis 542What: /sys/.../events/in_accel_x_thresh_either_hysteresis 543What: /sys/.../events/in_accel_y_thresh_rising_hysteresis 544What: /sys/.../events/in_accel_y_thresh_falling_hysteresis 545What: /sys/.../events/in_accel_y_thresh_either_hysteresis 546What: /sys/.../events/in_accel_z_thresh_rising_hysteresis 547What: /sys/.../events/in_accel_z_thresh_falling_hysteresis 548What: /sys/.../events/in_accel_z_thresh_either_hysteresis 549What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis 550What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis 551What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis 552What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis 553What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis 554What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis 555What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis 556What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis 557What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis 558What: /sys/.../events/in_magn_x_thresh_rising_hysteresis 559What: /sys/.../events/in_magn_x_thresh_falling_hysteresis 560What: /sys/.../events/in_magn_x_thresh_either_hysteresis 561What: /sys/.../events/in_magn_y_thresh_rising_hysteresis 562What: /sys/.../events/in_magn_y_thresh_falling_hysteresis 563What: /sys/.../events/in_magn_y_thresh_either_hysteresis 564What: /sys/.../events/in_magn_z_thresh_rising_hysteresis 565What: /sys/.../events/in_magn_z_thresh_falling_hysteresis 566What: /sys/.../events/in_magn_z_thresh_either_hysteresis 567What: /sys/.../events/in_voltageY_thresh_rising_hysteresis 568What: /sys/.../events/in_voltageY_thresh_falling_hysteresis 569What: /sys/.../events/in_voltageY_thresh_either_hysteresis 570What: /sys/.../events/in_tempY_thresh_rising_hysteresis 571What: /sys/.../events/in_tempY_thresh_falling_hysteresis 572What: /sys/.../events/in_tempY_thresh_either_hysteresis 573What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis 574what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis 575what: /sys/.../events/in_illuminance0_thresh_either_hysteresis 576what: /sys/.../events/in_proximity0_thresh_falling_hysteresis 577what: /sys/.../events/in_proximity0_thresh_rising_hysteresis 578what: /sys/.../events/in_proximity0_thresh_either_hysteresis 579KernelVersion: 3.13 580Contact: linux-iio@vger.kernel.org 581Description: 582 Specifies the hysteresis of threshold that the device is comparing 583 against for the events enabled by 584 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis. 585 If separate attributes exist for the two directions, but 586 direction is not specified for this attribute, then a single 587 hysteresis value applies to both directions. 588 For falling events the hysteresis is added to the _value attribute for 589 this event to get the upper threshold for when the event goes back to 590 normal, for rising events the hysteresis is subtracted from the _value 591 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200 592 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event 593 will get activated once in_voltage0_raw goes above 1200 and will become 594 deactived again once the value falls below 1150. 595 596What: /sys/.../events/in_accel_x_raw_roc_rising_value 597What: /sys/.../events/in_accel_x_raw_roc_falling_value 598What: /sys/.../events/in_accel_y_raw_roc_rising_value 599What: /sys/.../events/in_accel_y_raw_roc_falling_value 600What: /sys/.../events/in_accel_z_raw_roc_rising_value 601What: /sys/.../events/in_accel_z_raw_roc_falling_value 602What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 603What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 604What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 605What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 606What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 607What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 608What: /sys/.../events/in_magn_x_raw_roc_rising_value 609What: /sys/.../events/in_magn_x_raw_roc_falling_value 610What: /sys/.../events/in_magn_y_raw_roc_rising_value 611What: /sys/.../events/in_magn_y_raw_roc_falling_value 612What: /sys/.../events/in_magn_z_raw_roc_rising_value 613What: /sys/.../events/in_magn_z_raw_roc_falling_value 614What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 615What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 616What: /sys/.../events/in_voltageY_raw_roc_rising_value 617What: /sys/.../events/in_voltageY_raw_roc_falling_value 618What: /sys/.../events/in_tempY_raw_roc_rising_value 619What: /sys/.../events/in_tempY_raw_roc_falling_value 620KernelVersion: 2.6.37 621Contact: linux-iio@vger.kernel.org 622Description: 623 Specifies the value of rate of change threshold that the 624 device is comparing against for the events enabled by 625 <type>[Y][_name]_roc[_rising|falling]_en. 626 If separate attributes exist for the two directions, 627 but direction is not specified for this attribute, 628 then a single threshold value applies to both directions. 629 The raw or input element of the name indicates whether the 630 value is in raw device units or in processed units (as _raw 631 and _input do on sysfs direct channel read attributes). 632 633What: /sys/.../events/in_accel_x_thresh_rising_period 634What: /sys/.../events/in_accel_x_thresh_falling_period 635hat: /sys/.../events/in_accel_x_roc_rising_period 636What: /sys/.../events/in_accel_x_roc_falling_period 637What: /sys/.../events/in_accel_y_thresh_rising_period 638What: /sys/.../events/in_accel_y_thresh_falling_period 639What: /sys/.../events/in_accel_y_roc_rising_period 640What: /sys/.../events/in_accel_y_roc_falling_period 641What: /sys/.../events/in_accel_z_thresh_rising_period 642What: /sys/.../events/in_accel_z_thresh_falling_period 643What: /sys/.../events/in_accel_z_roc_rising_period 644What: /sys/.../events/in_accel_z_roc_falling_period 645What: /sys/.../events/in_anglvel_x_thresh_rising_period 646What: /sys/.../events/in_anglvel_x_thresh_falling_period 647What: /sys/.../events/in_anglvel_x_roc_rising_period 648What: /sys/.../events/in_anglvel_x_roc_falling_period 649What: /sys/.../events/in_anglvel_y_thresh_rising_period 650What: /sys/.../events/in_anglvel_y_thresh_falling_period 651What: /sys/.../events/in_anglvel_y_roc_rising_period 652What: /sys/.../events/in_anglvel_y_roc_falling_period 653What: /sys/.../events/in_anglvel_z_thresh_rising_period 654What: /sys/.../events/in_anglvel_z_thresh_falling_period 655What: /sys/.../events/in_anglvel_z_roc_rising_period 656What: /sys/.../events/in_anglvel_z_roc_falling_period 657What: /sys/.../events/in_magn_x_thresh_rising_period 658What: /sys/.../events/in_magn_x_thresh_falling_period 659What: /sys/.../events/in_magn_x_roc_rising_period 660What: /sys/.../events/in_magn_x_roc_falling_period 661What: /sys/.../events/in_magn_y_thresh_rising_period 662What: /sys/.../events/in_magn_y_thresh_falling_period 663What: /sys/.../events/in_magn_y_roc_rising_period 664What: /sys/.../events/in_magn_y_roc_falling_period 665What: /sys/.../events/in_magn_z_thresh_rising_period 666What: /sys/.../events/in_magn_z_thresh_falling_period 667What: /sys/.../events/in_magn_z_roc_rising_period 668What: /sys/.../events/in_magn_z_roc_falling_period 669What: /sys/.../events/in_voltageY_supply_thresh_rising_period 670What: /sys/.../events/in_voltageY_supply_thresh_falling_period 671What: /sys/.../events/in_voltageY_supply_roc_rising_period 672What: /sys/.../events/in_voltageY_supply_roc_falling_period 673What: /sys/.../events/in_voltageY_thresh_rising_period 674What: /sys/.../events/in_voltageY_thresh_falling_period 675What: /sys/.../events/in_voltageY_roc_rising_period 676What: /sys/.../events/in_voltageY_roc_falling_period 677What: /sys/.../events/in_tempY_thresh_rising_period 678What: /sys/.../events/in_tempY_thresh_falling_period 679What: /sys/.../events/in_tempY_roc_rising_period 680What: /sys/.../events/in_tempY_roc_falling_period 681What: /sys/.../events/in_accel_x&y&z_mag_falling_period 682What: /sys/.../events/in_intensity0_thresh_period 683What: /sys/.../events/in_proximity0_thresh_period 684KernelVersion: 2.6.37 685Contact: linux-iio@vger.kernel.org 686Description: 687 Period of time (in seconds) for which the condition must be 688 met before an event is generated. If direction is not 689 specified then this period applies to both directions. 690 691What: /sys/.../iio:deviceX/events/in_accel_mag_en 692What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 693What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 694What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 695What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 696What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 697What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 698What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 699What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 700What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 701What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 702What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 703What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 704What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 705KernelVersion: 2.6.37 706Contact: linux-iio@vger.kernel.org 707Description: 708 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 709 magnitude of the channel is compared to the threshold, not its 710 signed value. 711 712What: /sys/.../events/in_accel_raw_mag_value 713What: /sys/.../events/in_accel_x_raw_mag_rising_value 714What: /sys/.../events/in_accel_y_raw_mag_rising_value 715What: /sys/.../events/in_accel_z_raw_mag_rising_value 716KernelVersion: 2.6.37 717Contact: linux-iio@vger.kernel.org 718Description: 719 The value to which the magnitude of the channel is compared. If 720 number or direction is not specified, applies to all channels of 721 this type. 722 723What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 724KernelVersion: 2.6.35 725Contact: linux-iio@vger.kernel.org 726Description: 727 The name of the trigger source being used, as per string given 728 in /sys/class/iio/triggerY/name. 729 730What: /sys/bus/iio/devices/iio:deviceX/buffer/length 731KernelVersion: 2.6.35 732Contact: linux-iio@vger.kernel.org 733Description: 734 Number of scans contained by the buffer. 735 736What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum 737KernelVersion: 2.6.37 738Contact: linux-iio@vger.kernel.org 739Description: 740 Bytes per scan. Due to alignment fun, the scan may be larger 741 than implied directly by the scan_element parameters. 742 743What: /sys/bus/iio/devices/iio:deviceX/buffer/enable 744KernelVersion: 2.6.35 745Contact: linux-iio@vger.kernel.org 746Description: 747 Actually start the buffer capture up. Will start trigger 748 if first device and appropriate. 749 750What: /sys/bus/iio/devices/iio:deviceX/scan_elements 751KernelVersion: 2.6.37 752Contact: linux-iio@vger.kernel.org 753Description: 754 Directory containing interfaces for elements that will be 755 captured for a single triggered sample set in the buffer. 756 757What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en 758What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en 759What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en 760What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en 761What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en 762What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en 763What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en 764What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en 765What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en 766What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en 767What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en 768What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en 769What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en 770What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en 771What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en 772What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en 773What: /sys/.../iio:deviceX/scan_elements/in_pressure_en 774KernelVersion: 2.6.37 775Contact: linux-iio@vger.kernel.org 776Description: 777 Scan element control for triggered data capture. 778 779What: /sys/.../iio:deviceX/scan_elements/in_accel_type 780What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type 781What: /sys/.../iio:deviceX/scan_elements/in_magn_type 782What: /sys/.../iio:deviceX/scan_elements/in_incli_type 783What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type 784What: /sys/.../iio:deviceX/scan_elements/in_voltage_type 785What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type 786What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type 787What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type 788What: /sys/.../iio:deviceX/scan_elements/in_pressure_type 789KernelVersion: 2.6.37 790Contact: linux-iio@vger.kernel.org 791Description: 792 Description of the scan element data storage within the buffer 793 and hence the form in which it is read from user-space. 794 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 795 be or le specifies big or little endian. s or u specifies if 796 signed (2's complement) or unsigned. bits is the number of bits 797 of data and storagebits is the space (after padding) that it 798 occupies in the buffer. shift if specified, is the shift that 799 needs to be applied prior to masking out unused bits. Some 800 devices put their data in the middle of the transferred elements 801 with additional information on both sides. Note that some 802 devices will have additional information in the unused bits 803 so to get a clean value, the bits value must be used to mask 804 the buffer output value appropriately. The storagebits value 805 also specifies the data alignment. So s48/64>>2 will be a 806 signed 48 bit integer stored in a 64 bit location aligned to 807 a 64 bit boundary. To obtain the clean value, shift right 2 808 and apply a mask to zero the top 16 bits of the result. 809 For other storage combinations this attribute will be extended 810 appropriately. 811 812What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available 813KernelVersion: 2.6.37 814Contact: linux-iio@vger.kernel.org 815Description: 816 If the type parameter can take one of a small set of values, 817 this attribute lists them. 818 819What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index 820What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index 821What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index 822What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index 823What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index 824What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index 825What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index 826What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index 827What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index 828What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index 829What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index 830What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index 831What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index 832What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index 833What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index 834What: /sys/.../iio:deviceX/scan_elements/in_pressure_index 835KernelVersion: 2.6.37 836Contact: linux-iio@vger.kernel.org 837Description: 838 A single positive integer specifying the position of this 839 scan element in the buffer. Note these are not dependent on 840 what is enabled and may not be contiguous. Thus for user-space 841 to establish the full layout these must be used in conjunction 842 with all _en attributes to establish which channels are present, 843 and the relevant _type attributes to establish the data storage 844 format. 845 846What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 847KernelVersion: 2.6.38 848Contact: linux-iio@vger.kernel.org 849Description: 850 This attribute is used to read the amount of quadrature error 851 present in the device at a given time. 852 853What: /sys/.../iio:deviceX/in_accelX_power_mode 854KernelVersion: 3.11 855Contact: linux-iio@vger.kernel.org 856Description: 857 Specifies the chip power mode. 858 low_noise: reduce noise level from ADC, 859 low_power: enable low current consumption. 860 For a list of available output power modes read 861 in_accel_power_mode_available. 862 863What: /sys/bus/iio/devices/iio:deviceX/store_eeprom 864KernelVersion: 3.4.0 865Contact: linux-iio@vger.kernel.org 866Description: 867 Writing '1' stores the current device configuration into 868 on-chip EEPROM. After power-up or chip reset the device will 869 automatically load the saved configuration. 870 871What: /sys/.../iio:deviceX/in_intensity_red_integration_time 872What: /sys/.../iio:deviceX/in_intensity_green_integration_time 873What: /sys/.../iio:deviceX/in_intensity_blue_integration_time 874What: /sys/.../iio:deviceX/in_intensity_clear_integration_time 875What: /sys/.../iio:deviceX/in_illuminance_integration_time 876KernelVersion: 3.12 877Contact: linux-iio@vger.kernel.org 878Description: 879 This attribute is used to get/set the integration time in 880 seconds. 881