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 19 Contains trigger type specific elements. These do not 20 generalize well and hence are not documented in this file. 21 X is the IIO index of the trigger. 22 23What: /sys/bus/iio/devices/iio:deviceX/buffer 24KernelVersion: 2.6.35 25Contact: linux-iio@vger.kernel.org 26Description: 27 Directory of attributes relating to the buffer for the device. 28 29What: /sys/bus/iio/devices/iio:deviceX/name 30KernelVersion: 2.6.35 31Contact: linux-iio@vger.kernel.org 32Description: 33 Description of the physical chip / device for device X. 34 Typically a part number. 35 36What: /sys/bus/iio/devices/iio:deviceX/label 37KernelVersion: 5.8 38Contact: linux-iio@vger.kernel.org 39Description: 40 Optional symbolic label for a device. 41 This is useful for userspace to be able to better identify an 42 individual device. 43 44 The contents of the label are free-form, but there are some 45 standardized uses: 46 47 For proximity sensors which give the proximity (of a person) to 48 a certain wlan or wwan antenna the following standardized labels 49 are used: 50 51 * "proximity-wifi" 52 * "proximity-lte" 53 * "proximity-wifi-lte" 54 * "proximity-wifi-left" 55 * "proximity-wifi-right" 56 57 These are used to indicate to userspace that these proximity 58 sensors may be used to tune transmit power to ensure that 59 Specific Absorption Rate (SAR) limits are honored. 60 The "-left" and "-right" labels are for devices with multiple 61 antennas. 62 63 In some laptops/tablets the standardized proximity sensor labels 64 instead indicate proximity to a specific part of the device: 65 66 * "proximity-palmrest" indicates proximity to the keyboard's palmrest 67 * "proximity-palmrest-left" indicates proximity to the left part of the palmrest 68 * "proximity-palmrest-right" indicates proximity to the right part of the palmrest 69 * "proximity-lap" indicates the device is being used on someone's lap 70 71 Note "proximity-lap" is special in that its value may be 72 calculated by firmware from other sensor readings, rather then 73 being a raw sensor reading. 74 75 For accelerometers used in 2-in-1s with 360° (yoga-style) hinges, 76 which have an accelerometer in both their base and their display, 77 the following standardized labels are used: 78 79 * "accel-base" 80 * "accel-display" 81 82 For devices where an accelerometer is housed in the swivel camera subassembly 83 (for AR application), the following standardized label is used: 84 85 * "accel-camera" 86 87What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock 88KernelVersion: 4.5 89Contact: linux-iio@vger.kernel.org 90Description: 91 String identifying current posix clock used to timestamp 92 buffered samples and events for device X. 93 94What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency 95What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency 96What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency 97What: /sys/bus/iio/devices/triggerX/sampling_frequency 98KernelVersion: 2.6.35 99Contact: linux-iio@vger.kernel.org 100Description: 101 Some devices have internal clocks. This parameter sets the 102 resulting sampling frequency. In many devices this 103 parameter has an effect on input filters etc. rather than 104 simply controlling when the input is sampled. As this 105 affects data ready triggers, hardware buffers and the sysfs 106 direct access interfaces, it may be found in any of the 107 relevant directories. If it affects all of the above 108 then it is to be found in the base device directory. 109 110 The stm32-timer-trigger has the additional characteristic that 111 a sampling_frequency of 0 is defined to stop sampling. 112 113What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 114What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available 115What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available 116What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 117What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 118KernelVersion: 2.6.35 119Contact: linux-iio@vger.kernel.org 120Description: 121 When the internal sampling clock can only take a specific set of 122 frequencies, we can specify the available values with: 123 124 - a small discrete set of values like "0 2 4 6 8" 125 - a range with minimum, step and maximum frequencies like 126 "[min step max]" 127 128What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 129KernelVersion: 2.6.38 130Contact: linux-iio@vger.kernel.org 131Description: 132 Hardware dependent ADC oversampling. Controls the sampling ratio 133 of the digital filter if available. 134 135What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 136KernelVersion: 2.6.38 137Contact: linux-iio@vger.kernel.org 138Description: 139 Hardware dependent values supported by the oversampling filter. 140 141What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 142What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 143What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw 144What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw 145KernelVersion: 2.6.35 146Contact: linux-iio@vger.kernel.org 147Description: 148 Raw (unscaled no bias removal etc.) voltage measurement from 149 channel Y. In special cases where the channel does not 150 correspond to externally available input one of the named 151 versions may be used. The number must always be specified and 152 unique to allow association with event codes. Units after 153 application of scale and offset are millivolts. 154 155 Channels with 'i' and 'q' modifiers always exist in pairs and both 156 channels refer to the same signal. The 'i' channel contains the in-phase 157 component of the signal while the 'q' channel contains the quadrature 158 component. 159 160What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 161KernelVersion: 2.6.35 162Contact: linux-iio@vger.kernel.org 163Description: 164 Raw (unscaled) differential voltage measurement equivalent to 165 channel Y - channel Z where these channel numbers apply to the 166 physically equivalent inputs when non differential readings are 167 separately available. In differential only parts, then all that 168 is required is a consistent labeling. Units after application 169 of scale and offset are millivolts. 170 171What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw 172What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw 173KernelVersion: 3.17 174Contact: linux-iio@vger.kernel.org 175Description: 176 Raw (unscaled no bias removal etc.) current measurement from 177 channel Y. In special cases where the channel does not 178 correspond to externally available input one of the named 179 versions may be used. The number must always be specified and 180 unique to allow association with event codes. Units after 181 application of scale and offset are milliamps. 182 183What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw 184KernelVersion: 4.5 185Contact: linux-iio@vger.kernel.org 186Description: 187 Raw (unscaled no bias removal etc.) power measurement from 188 channel Y. The number must always be specified and 189 unique to allow association with event codes. Units after 190 application of scale and offset are milliwatts. 191 192What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 193KernelVersion: 3.2 194Contact: linux-iio@vger.kernel.org 195Description: 196 Raw capacitance measurement from channel Y. Units after 197 application of scale and offset are nanofarads. 198 199What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw 200KernelVersion: 3.2 201Contact: linux-iio@vger.kernel.org 202Description: 203 Raw differential capacitance measurement equivalent to 204 channel Y - channel Z where these channel numbers apply to the 205 physically equivalent inputs when non differential readings are 206 separately available. In differential only parts, then all that 207 is required is a consistent labeling. Units after application 208 of scale and offset are nanofarads. 209 210What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_zeropoint 211KernelVersion: 6.1 212Contact: linux-iio@vger.kernel.org 213Description: 214 For differential channels, this an offset that is applied 215 equally to both inputs. As the reading is of the difference 216 between the two inputs, this should not be applied to the _raw 217 reading by userspace (unlike _offset) and unlike calibbias 218 it does not affect the differential value measured because 219 the effect of _zeropoint cancels out across the two inputs 220 that make up the differential pair. It's purpose is to bring 221 the individual signals, before the differential is measured, 222 within the measurement range of the device. The naming is 223 chosen because if the separate inputs that make the 224 differential pair are drawn on a graph in their 225 _raw units, this is the value that the zero point on the 226 measurement axis represents. It is expressed with the 227 same scaling as _raw. 228 229What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 230What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw 231What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 232What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 233What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw 234What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw 235KernelVersion: 2.6.35 236Contact: linux-iio@vger.kernel.org 237Description: 238 Raw (unscaled no bias removal etc.) temperature measurement. 239 If an axis is specified it generally means that the temperature 240 sensor is associated with one part of a compound device (e.g. 241 a gyroscope axis). The ambient and object modifiers distinguish 242 between ambient (reference) and distant temperature for contact- 243 less measurements. Units after application of scale and offset 244 are milli degrees Celsius. 245 246What: /sys/bus/iio/devices/iio:deviceX/in_tempY_input 247What: /sys/bus/iio/devices/iio:deviceX/in_temp_input 248KernelVersion: 2.6.38 249Contact: linux-iio@vger.kernel.org 250Description: 251 Scaled temperature measurement in milli degrees Celsius. 252 253What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 254What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 255What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 256KernelVersion: 2.6.35 257Contact: linux-iio@vger.kernel.org 258Description: 259 Acceleration in direction x, y or z (may be arbitrarily assigned 260 but should match other such assignments on device). 261 Has all of the equivalent parameters as per voltageY. Units 262 after application of scale and offset are m/s^2. 263 264What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw 265What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw 266What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw 267KernelVersion: 6.1 268Contact: linux-iio@vger.kernel.org 269Description: 270 As per in_accel_X_raw attributes, but minus the 271 acceleration due to gravity. 272 273What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw 274What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw 275What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw 276KernelVersion: 4.11 277Contact: linux-iio@vger.kernel.org 278Description: 279 Gravity in direction x, y or z (may be arbitrarily assigned 280 but should match other such assignments on device). 281 Units after application of scale and offset are m/s^2. 282 283What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw 284What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw 285What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw 286KernelVersion: 6.5 287Contact: linux-iio@vger.kernel.org 288Description: 289 Angular displacement between two consecutive samples on x, y or 290 z (may be arbitrarily assigned but should match other such 291 assignments on device). 292 In order to compute the total angular displacement during a 293 desired period of time, the application should sum-up the delta 294 angle samples acquired during that time. 295 Units after application of scale and offset are radians. 296 297What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw 298What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw 299What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw 300KernelVersion: 6.5 301Contact: linux-iio@vger.kernel.org 302Description: 303 The linear velocity change between two consecutive samples on x, 304 y or z (may be arbitrarily assigned but should match other such 305 assignments on device). 306 In order to compute the total linear velocity change during a 307 desired period of time, the application should sum-up the delta 308 velocity samples acquired during that time. 309 Units after application of scale and offset are meters per 310 second. 311 312What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw 313What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw 314KernelVersion: 4.17 315Contact: linux-iio@vger.kernel.org 316Description: 317 Angle of rotation. Units after application of scale and offset 318 are radians. 319 320What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw 321What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw 322KernelVersion: 4.19 323Contact: linux-iio@vger.kernel.org 324Description: 325 Relative position in direction x or y on a pad (may be 326 arbitrarily assigned but should match other such assignments on 327 device). 328 Units after application of scale and offset are milli percents 329 from the pad's size in both directions. Should be calibrated by 330 the consumer. 331 332What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 333What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 334What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 335KernelVersion: 2.6.35 336Contact: linux-iio@vger.kernel.org 337Description: 338 Angular velocity about axis x, y or z (may be arbitrarily 339 assigned). Has all the equivalent parameters as per voltageY. 340 Units after application of scale and offset are radians per 341 second. 342 343What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 344What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 345What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 346KernelVersion: 2.6.35 347Contact: linux-iio@vger.kernel.org 348Description: 349 Inclination raw reading about axis x, y or z (may be 350 arbitrarily assigned). Data converted by application of offset 351 and scale to degrees. 352 353What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 354What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 355What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 356KernelVersion: 2.6.35 357Contact: linux-iio@vger.kernel.org 358Description: 359 Magnetic field along axis x, y or z (may be arbitrarily 360 assigned). Data converted by application of offset 361 then scale to Gauss. 362 363What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 364What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 365What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 366What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_peak_raw 367What: /sys/bus/iio/devices/iio:deviceX/in_temp_peak_raw 368KernelVersion: 2.6.36 369Contact: linux-iio@vger.kernel.org 370Description: 371 Highest value since some reset condition. These 372 attributes allow access to this and are otherwise 373 the direct equivalent of the <type>Y[_name]_raw attributes. 374 375What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_trough_raw 376What: /sys/bus/iio/devices/iio:deviceX/in_temp_trough_raw 377KernelVersion: 6.7 378Contact: linux-iio@vger.kernel.org 379Description: 380 Lowest value since some reset condition. These 381 attributes allow access to this and are otherwise 382 the direct equivalent of the <type>Y[_name]_raw attributes. 383 384What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 385KernelVersion: 2.6.36 386Contact: linux-iio@vger.kernel.org 387Description: 388 A computed peak value based on the sum squared magnitude of 389 the underlying value in the specified directions. 390 391What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw 392What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw 393KernelVersion: 3.8 394Contact: linux-iio@vger.kernel.org 395Description: 396 Raw pressure measurement from channel Y. Units after 397 application of scale and offset are kilopascal. 398 399What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input 400What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input 401KernelVersion: 3.8 402Contact: linux-iio@vger.kernel.org 403Description: 404 Scaled pressure measurement from channel Y, in kilopascal. 405 406What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw 407KernelVersion: 3.14 408Contact: linux-iio@vger.kernel.org 409Description: 410 Raw humidity measurement of air. Units after application of 411 scale and offset are milli percent. 412 413What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input 414KernelVersion: 3.14 415Contact: linux-iio@vger.kernel.org 416Description: 417 Scaled humidity measurement in milli percent. 418 419What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw 420KernelVersion: 3.5 421Contact: linux-iio@vger.kernel.org 422Description: 423 Averaged raw measurement from channel X. The number of values 424 used for averaging is device specific. The converting rules for 425 normal raw values also applies to the averaged raw values. 426 427What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 428What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 429What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 430What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 431What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 432What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 433What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset 434What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset 435What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset 436What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset 437What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset 438What: /sys/bus/iio/devices/iio:deviceX/in_current_offset 439What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset 440What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset 441What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset 442What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset 443What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 444What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 445What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset 446What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset 447What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset 448What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset 449What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset 450What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset 451What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset 452KernelVersion: 2.6.35 453Contact: linux-iio@vger.kernel.org 454Description: 455 If known for a device, offset to be added to <type>[Y]_raw prior 456 to scaling by <type>[Y]_scale in order to obtain value in the 457 <type> units as specified in <type>[Y]_raw documentation. 458 Not present if the offset is always 0 or unknown. If Y or 459 axis <x|y|z> is not present, then the offset applies to all 460 in channels of <type>. 461 May be writable if a variable offset can be applied on the 462 device. Note that this is different to calibbias which 463 is for devices (or drivers) that apply offsets to compensate 464 for variation between different instances of the part, typically 465 adjusted by using some hardware supported calibration procedure. 466 Calibbias is applied internally, offset is applied in userspace 467 to the _raw output. 468 469What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 470What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale 471What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale 472What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 473What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 474What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale 475What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale 476What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale 477What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 478What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 479What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale 480What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale 481What: /sys/bus/iio/devices/iio:deviceX/in_current_scale 482What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale 483What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale 484What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale 485What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale 486What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 487What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 488What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 489What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale 490What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale 491What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 492What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 493What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 494What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 495What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale 496What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale 497What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale 498What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale 499What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale 500What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale 501What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale 502What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale 503What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale 504What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale 505What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale 506What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale 507What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale 508What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale 509What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale 510What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale 511What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale 512KernelVersion: 2.6.35 513Contact: linux-iio@vger.kernel.org 514Description: 515 If known for a device, scale to be applied to <type>Y[_name]_raw 516 post addition of <type>[Y][_name]_offset in order to obtain the 517 measured value in <type> units as specified in 518 <type>[Y][_name]_raw documentation. If shared across all in 519 channels then Y and <x|y|z> are not present and the value is 520 called <type>[Y][_name]_scale. The peak modifier means this 521 value is applied to <type>Y[_name]_peak_raw values. 522 523What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 524What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 525What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 526What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 527What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 528What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 529What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 530What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 531What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias 532What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias 533KernelVersion: 2.6.35 534Contact: linux-iio@vger.kernel.org 535Description: 536 Hardware applied calibration offset (assumed to fix production 537 inaccuracies). 538 icm42600: For this device values are real physical offsets 539 expressed in SI units (m/s^2 for accelerometers and rad/s 540 for gyroscope)/ 541 542What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available 543What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available 544KernelVersion: 5.8 545Contact: linux-iio@vger.kernel.org 546Description: 547 Available values of calibbias. Maybe expressed as either of: 548 549 - a small discrete set of values like "0 2 4 6 8" 550 - a range specified as "[min step max]" 551 552What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 553What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 554What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale 555What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale 556What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale 557What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale 558What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale 559What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 560What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 561What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 562What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 563What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 564What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 565What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 566What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 567What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 568What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale 569What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale 570What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale 571KernelVersion: 2.6.35 572Contact: linux-iio@vger.kernel.org 573Description: 574 Hardware applied calibration scale factor (assumed to fix 575 production inaccuracies). If shared across all channels, 576 <type>_calibscale is used. 577 578What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender 579What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender 580What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender 581What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender 582KernelVersion: 4.0 583Contact: linux-iio@vger.kernel.org 584Description: 585 Gender of the user (e.g.: male, female) used by some pedometers 586 to compute the stride length, distance, speed and activity 587 type. 588 589What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available 590What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available 591What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available 592What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available 593KernelVersion: 4.0 594Contact: linux-iio@vger.kernel.org 595Description: 596 Lists all available gender values (e.g.: male, female). 597 598What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight 599What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight 600What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight 601What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight 602KernelVersion: 3.19 603Contact: linux-iio@vger.kernel.org 604Description: 605 Height of the user (in meters) used by some pedometers 606 to compute the stride length, distance, speed and activity 607 type. 608 609What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight 610KernelVersion: 4.0 611Contact: linux-iio@vger.kernel.org 612Description: 613 Weight of the user (in kg). It is needed by some pedometers 614 to compute the calories burnt by the user. 615 616What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 617What: /sys/.../iio:deviceX/in_anglvel_scale_available 618What: /sys/.../iio:deviceX/in_magn_scale_available 619What: /sys/.../iio:deviceX/in_illuminance_scale_available 620What: /sys/.../iio:deviceX/in_intensity_scale_available 621What: /sys/.../iio:deviceX/in_proximity_scale_available 622What: /sys/.../iio:deviceX/in_voltageX_scale_available 623What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 624What: /sys/.../iio:deviceX/out_voltageX_scale_available 625What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 626What: /sys/.../iio:deviceX/in_capacitance_scale_available 627What: /sys/.../iio:deviceX/in_pressure_scale_available 628What: /sys/.../iio:deviceX/in_pressureY_scale_available 629KernelVersion: 2.6.35 630Contact: linux-iio@vger.kernel.org 631Description: 632 If a discrete set of scale values is available, they 633 are listed in this attribute. Unlike illumination, 634 multiplying intensity by intensity_scale does not 635 yield value with any standardized unit. 636 637What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 638What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain 639What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain 640What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain 641What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain 642What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain 643KernelVersion: 2.6.35 644Contact: linux-iio@vger.kernel.org 645Description: 646 Hardware applied gain factor. If shared across all channels, 647 <type>_hardwaregain is used. 648 649What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available 650KernelVersion: 5.10 651Contact: linux-iio@vger.kernel.org 652Description: 653 Lists all available hardware applied gain factors. Shared across all 654 channels. 655 656What: /sys/.../in_accel_filter_low_pass_3db_frequency 657What: /sys/.../in_magn_filter_low_pass_3db_frequency 658What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 659KernelVersion: 3.2 660Contact: linux-iio@vger.kernel.org 661Description: 662 If a known or controllable low pass filter is applied 663 to the underlying data channel, then this parameter 664 gives the 3dB frequency of the filter in Hz. 665 666What: /sys/.../in_accel_filter_high_pass_3db_frequency 667What: /sys/.../in_anglvel_filter_high_pass_3db_frequency 668What: /sys/.../in_magn_filter_high_pass_3db_frequency 669KernelVersion: 4.2 670Contact: linux-iio@vger.kernel.org 671Description: 672 If a known or controllable high pass filter is applied 673 to the underlying data channel, then this parameter 674 gives the 3dB frequency of the filter in Hz. 675 676What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 677What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 678KernelVersion: 2.6.37 679Contact: linux-iio@vger.kernel.org 680Description: 681 Raw (unscaled, no bias etc.) output voltage for 682 channel Y. The number must always be specified and 683 unique if the output corresponds to a single channel. 684 While DAC like devices typically use out_voltage, 685 a continuous frequency generating device, such as 686 a DDS or PLL should use out_altvoltage. 687 688What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 689What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 690KernelVersion: 2.6.37 691Contact: linux-iio@vger.kernel.org 692Description: 693 Raw (unscaled, no bias etc.) output voltage for an aggregate of 694 channel Y, channel Z, etc. This interface is available in cases 695 where a single output sets the value for multiple channels 696 simultaneously. 697 698What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 699What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 700What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 701What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 702KernelVersion: 2.6.38 703Contact: linux-iio@vger.kernel.org 704Description: 705 Specifies the output powerdown mode. 706 DAC output stage is disconnected from the amplifier and 707 1kohm_to_gnd: connected to ground via an 1kOhm resistor, 708 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor, 709 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 710 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 711 90kohm_to_gnd: connected to ground via a 90kOhm resistor, 712 100kohm_to_gnd: connected to ground via an 100kOhm resistor, 713 125kohm_to_gnd: connected to ground via an 125kOhm resistor, 714 500kohm_to_gnd: connected to ground via a 500kOhm resistor, 715 640kohm_to_gnd: connected to ground via a 640kOhm resistor, 716 three_state: left floating. 717 For a list of available output power down options read 718 outX_powerdown_mode_available. If Y is not present the 719 mode is shared across all outputs. 720 721What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available 722What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 723What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available 724What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 725KernelVersion: 2.6.38 726Contact: linux-iio@vger.kernel.org 727Description: 728 Lists all available output power down modes. 729 If Y is not present the mode is shared across all outputs. 730 731What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 732What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 733What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 734What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 735KernelVersion: 2.6.38 736Contact: linux-iio@vger.kernel.org 737Description: 738 Writing 1 causes output Y to enter the power down mode specified 739 by the corresponding outY_powerdown_mode. DAC output stage is 740 disconnected from the amplifier. Clearing returns to normal 741 operation. Y may be suppressed if all outputs are controlled 742 together. 743 744What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 745KernelVersion: 3.4.0 746Contact: linux-iio@vger.kernel.org 747Description: 748 Output frequency for channel Y in Hz. The number must always be 749 specified and unique if the output corresponds to a single 750 channel. 751 Some drivers have additional constraints: 752 ADF4371 has an integrated VCO with fundamendal output 753 frequency ranging from 4000000000 Hz 8000000000 Hz. 754 755 out_altvoltage0_frequency: 756 A divide by 1, 2, 4, 8, 16, 32 or circuit generates 757 frequencies from 62500000 Hz to 8000000000 Hz. 758 out_altvoltage1_frequency: 759 This channel duplicates the channel 0 frequency 760 out_altvoltage2_frequency: 761 A frequency doubler generates frequencies from 762 8000000000 Hz to 16000000000 Hz. 763 out_altvoltage3_frequency: 764 A frequency quadrupler generates frequencies from 765 16000000000 Hz to 32000000000 Hz. 766 767 Note: writes to one of the channels will affect the frequency of 768 all the other channels, since it involves changing the VCO 769 fundamental output frequency. 770 771What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 772KernelVersion: 3.4.0 773Contact: linux-iio@vger.kernel.org 774Description: 775 Phase in radians of one frequency/clock output Y 776 (out_altvoltageY) relative to another frequency/clock output 777 (out_altvoltageZ) of the device X. The number must always be 778 specified and unique if the output corresponds to a single 779 channel. 780 781What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw 782Date: May 2012 783KernelVersion: 3.5 784Contact: Johan Hovold <jhovold@gmail.com> 785Description: 786 Set/get output current for channel Y. Units after application 787 of scale and offset are milliamps. 788 For some devices current channels are used to specify 789 current supplied to elements used in taking a measurement 790 of a different type. E.g. LED currents. 791 792What: /sys/bus/iio/devices/iio:deviceX/events 793KernelVersion: 2.6.35 794Contact: linux-iio@vger.kernel.org 795Description: 796 Configuration of which hardware generated events are passed up 797 to user-space. 798 799What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 800What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 801What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 802What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 803What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 804What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 805What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 806What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 807What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 808What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 809What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 810What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 811What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 812What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 813What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 814What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 815What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 816What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 817What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en 818What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en 819What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en 820What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en 821What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en 822What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en 823What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en 824What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en 825What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 826What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 827What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 828What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 829What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en 830What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 831What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 832What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en 833What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en 834KernelVersion: 2.6.37 835Contact: linux-iio@vger.kernel.org 836Description: 837 Event generated when channel passes a threshold in the specified 838 (_rising|_falling) direction. If the direction is not specified, 839 then either the device will report an event which ever direction 840 a single threshold value is passed in (e.g. 841 <type>[Y][_name]_<raw|input>_thresh_value) or 842 <type>[Y][_name]_<raw|input>_thresh_rising_value and 843 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 844 different values, but the device can only enable both thresholds 845 or neither. 846 847 Note the driver will assume the last p events requested are 848 to be enabled where p is how many it supports (which may vary 849 depending on the exact set requested. So if you want to be 850 sure you have set what you think you have, check the contents of 851 these attributes after everything is configured. Drivers may 852 have to buffer any parameters so that they are consistent when 853 a given event type is enabled at a future point (and not those for 854 whatever event was previously enabled). 855 856What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 857What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 858What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 859What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 860What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 861What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 862What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 863What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 864What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 865What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 866What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 867What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 868What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 869What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 870What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 871What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 872What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 873What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 874What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en 875What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en 876What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en 877What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en 878What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en 879What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en 880What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en 881What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en 882What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 883What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 884What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 885What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 886What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 887What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 888KernelVersion: 2.6.37 889Contact: linux-iio@vger.kernel.org 890Description: 891 Event generated when channel passes a threshold on the rate of 892 change (1st differential) in the specified (_rising|_falling) 893 direction. If the direction is not specified, then either the 894 device will report an event which ever direction a single 895 threshold value is passed in (e.g. 896 <type>[Y][_name]_<raw|input>_roc_value) or 897 <type>[Y][_name]_<raw|input>_roc_rising_value and 898 <type>[Y][_name]_<raw|input>_roc_falling_value may take 899 different values, but the device can only enable both rate of 900 change thresholds or neither. 901 902 Note the driver will assume the last p events requested are 903 to be enabled where p is however many it supports (which may 904 vary depending on the exact set requested. So if you want to be 905 sure you have set what you think you have, check the contents of 906 these attributes after everything is configured. Drivers may 907 have to buffer any parameters so that they are consistent when 908 a given event type is enabled a future point (and not those for 909 whatever event was previously enabled). 910 911What: /sys/.../events/in_capacitanceY_adaptive_thresh_rising_en 912What: /sys/.../events/in_capacitanceY_adaptive_thresh_falling_en 913KernelVersion: 5.13 914Contact: linux-iio@vger.kernel.org 915Description: 916 Adaptive thresholds are similar to normal fixed thresholds 917 but the value is expressed as an offset from a value which 918 provides a low frequency approximation of the channel itself. 919 Thus these detect if a rapid change occurs in the specified 920 direction which crosses tracking value + offset. 921 Tracking value calculation is devices specific. 922 923What: /sys/.../in_capacitanceY_adaptive_thresh_rising_timeout 924What: /sys/.../in_capacitanceY_adaptive_thresh_falling_timeout 925KernelVersion: 5.11 926Contact: linux-iio@vger.kernel.org 927Description: 928 When adaptive thresholds are used, the tracking signal 929 may adjust too slowly to step changes in the raw signal. 930 Thus these specify the time in seconds for which the 931 difference between the slow tracking signal and the raw 932 signal is allowed to remain out-of-range before a reset 933 event occurs in which the tracking signal is made equal 934 to the raw signal, allowing slow tracking to resume and the 935 adaptive threshold event detection to function as expected. 936 937What: /sys/.../events/in_accel_thresh_rising_value 938What: /sys/.../events/in_accel_thresh_falling_value 939What: /sys/.../events/in_accel_x_raw_thresh_rising_value 940What: /sys/.../events/in_accel_x_raw_thresh_falling_value 941What: /sys/.../events/in_accel_y_raw_thresh_rising_value 942What: /sys/.../events/in_accel_y_raw_thresh_falling_value 943What: /sys/.../events/in_accel_z_raw_thresh_rising_value 944What: /sys/.../events/in_accel_z_raw_thresh_falling_value 945What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 946What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 947What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 948What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 949What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 950What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 951What: /sys/.../events/in_magn_x_raw_thresh_rising_value 952What: /sys/.../events/in_magn_x_raw_thresh_falling_value 953What: /sys/.../events/in_magn_y_raw_thresh_rising_value 954What: /sys/.../events/in_magn_y_raw_thresh_falling_value 955What: /sys/.../events/in_magn_z_raw_thresh_rising_value 956What: /sys/.../events/in_magn_z_raw_thresh_falling_value 957What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value 958What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value 959What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value 960What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value 961What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value 962What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value 963What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value 964What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value 965What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 966What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 967What: /sys/.../events/in_voltageY_raw_thresh_rising_value 968What: /sys/.../events/in_voltageY_raw_thresh_falling_value 969What: /sys/.../events/in_tempY_raw_thresh_rising_value 970What: /sys/.../events/in_tempY_raw_thresh_falling_value 971What: /sys/.../events/in_illuminance0_thresh_falling_value 972What: /sys/.../events/in_illuminance0_thresh_rising_value 973What: /sys/.../events/in_proximity0_thresh_falling_value 974What: /sys/.../events/in_proximity0_thresh_rising_value 975What: /sys/.../events/in_illuminance_thresh_rising_value 976What: /sys/.../events/in_illuminance_thresh_falling_value 977What: /sys/.../events/in_capacitanceY_thresh_rising_value 978What: /sys/.../events/in_capacitanceY_thresh_falling_value 979What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value 980What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value 981KernelVersion: 2.6.37 982Contact: linux-iio@vger.kernel.org 983Description: 984 Specifies the value of threshold that the device is comparing 985 against for the events enabled by 986 <type>Y[_name]_thresh[_rising|falling]_en. 987 988 If separate attributes exist for the two directions, but 989 direction is not specified for this attribute, then a single 990 threshold value applies to both directions. 991 992 The raw or input element of the name indicates whether the 993 value is in raw device units or in processed units (as _raw 994 and _input do on sysfs direct channel read attributes). 995 996What: /sys/.../events/in_accel_scale 997What: /sys/.../events/in_accel_peak_scale 998What: /sys/.../events/in_anglvel_scale 999What: /sys/.../events/in_magn_scale 1000What: /sys/.../events/in_rot_from_north_magnetic_scale 1001What: /sys/.../events/in_rot_from_north_true_scale 1002What: /sys/.../events/in_voltage_scale 1003What: /sys/.../events/in_voltage_supply_scale 1004What: /sys/.../events/in_temp_scale 1005What: /sys/.../events/in_illuminance_scale 1006What: /sys/.../events/in_proximity_scale 1007KernelVersion: 3.21 1008Contact: linux-iio@vger.kernel.org 1009Description: 1010 Specifies the conversion factor from the standard units 1011 to device specific units used to set the event trigger 1012 threshold. 1013 1014What: /sys/.../events/in_accel_x_thresh_rising_hysteresis 1015What: /sys/.../events/in_accel_x_thresh_falling_hysteresis 1016What: /sys/.../events/in_accel_x_thresh_either_hysteresis 1017What: /sys/.../events/in_accel_y_thresh_rising_hysteresis 1018What: /sys/.../events/in_accel_y_thresh_falling_hysteresis 1019What: /sys/.../events/in_accel_y_thresh_either_hysteresis 1020What: /sys/.../events/in_accel_z_thresh_rising_hysteresis 1021What: /sys/.../events/in_accel_z_thresh_falling_hysteresis 1022What: /sys/.../events/in_accel_z_thresh_either_hysteresis 1023What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis 1024What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis 1025What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis 1026What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis 1027What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis 1028What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis 1029What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis 1030What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis 1031What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis 1032What: /sys/.../events/in_magn_x_thresh_rising_hysteresis 1033What: /sys/.../events/in_magn_x_thresh_falling_hysteresis 1034What: /sys/.../events/in_magn_x_thresh_either_hysteresis 1035What: /sys/.../events/in_magn_y_thresh_rising_hysteresis 1036What: /sys/.../events/in_magn_y_thresh_falling_hysteresis 1037What: /sys/.../events/in_magn_y_thresh_either_hysteresis 1038What: /sys/.../events/in_magn_z_thresh_rising_hysteresis 1039What: /sys/.../events/in_magn_z_thresh_falling_hysteresis 1040What: /sys/.../events/in_magn_z_thresh_either_hysteresis 1041What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis 1042What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis 1043What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis 1044What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis 1045What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis 1046What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis 1047What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis 1048What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis 1049What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis 1050What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis 1051What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis 1052What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis 1053What: /sys/.../events/in_voltageY_thresh_rising_hysteresis 1054What: /sys/.../events/in_voltageY_thresh_falling_hysteresis 1055What: /sys/.../events/in_voltageY_thresh_either_hysteresis 1056What: /sys/.../events/in_tempY_thresh_rising_hysteresis 1057What: /sys/.../events/in_tempY_thresh_falling_hysteresis 1058What: /sys/.../events/in_tempY_thresh_either_hysteresis 1059What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis 1060What: /sys/.../events/in_illuminance0_thresh_rising_hysteresis 1061What: /sys/.../events/in_illuminance0_thresh_either_hysteresis 1062What: /sys/.../events/in_proximity0_thresh_falling_hysteresis 1063What: /sys/.../events/in_proximity0_thresh_rising_hysteresis 1064What: /sys/.../events/in_proximity0_thresh_either_hysteresis 1065KernelVersion: 3.13 1066Contact: linux-iio@vger.kernel.org 1067Description: 1068 Specifies the hysteresis of threshold that the device is comparing 1069 against for the events enabled by 1070 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis. 1071 If separate attributes exist for the two directions, but 1072 direction is not specified for this attribute, then a single 1073 hysteresis value applies to both directions. 1074 1075 For falling events the hysteresis is added to the _value attribute for 1076 this event to get the upper threshold for when the event goes back to 1077 normal, for rising events the hysteresis is subtracted from the _value 1078 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200 1079 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event 1080 will get activated once in_voltage0_raw goes above 1200 and will become 1081 deactivated again once the value falls below 1150. 1082 1083What: /sys/.../events/in_accel_x_raw_roc_rising_value 1084What: /sys/.../events/in_accel_x_raw_roc_falling_value 1085What: /sys/.../events/in_accel_y_raw_roc_rising_value 1086What: /sys/.../events/in_accel_y_raw_roc_falling_value 1087What: /sys/.../events/in_accel_z_raw_roc_rising_value 1088What: /sys/.../events/in_accel_z_raw_roc_falling_value 1089What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 1090What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 1091What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 1092What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 1093What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 1094What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 1095What: /sys/.../events/in_magn_x_raw_roc_rising_value 1096What: /sys/.../events/in_magn_x_raw_roc_falling_value 1097What: /sys/.../events/in_magn_y_raw_roc_rising_value 1098What: /sys/.../events/in_magn_y_raw_roc_falling_value 1099What: /sys/.../events/in_magn_z_raw_roc_rising_value 1100What: /sys/.../events/in_magn_z_raw_roc_falling_value 1101What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value 1102What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value 1103What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value 1104What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value 1105What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value 1106What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value 1107What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value 1108What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value 1109What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 1110What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 1111What: /sys/.../events/in_voltageY_raw_roc_rising_value 1112What: /sys/.../events/in_voltageY_raw_roc_falling_value 1113What: /sys/.../events/in_tempY_raw_roc_rising_value 1114What: /sys/.../events/in_tempY_raw_roc_falling_value 1115KernelVersion: 2.6.37 1116Contact: linux-iio@vger.kernel.org 1117Description: 1118 Specifies the value of rate of change threshold that the 1119 device is comparing against for the events enabled by 1120 <type>[Y][_name]_roc[_rising|falling]_en. 1121 1122 If separate attributes exist for the two directions, 1123 but direction is not specified for this attribute, 1124 then a single threshold value applies to both directions. 1125 The raw or input element of the name indicates whether the 1126 value is in raw device units or in processed units (as _raw 1127 and _input do on sysfs direct channel read attributes). 1128 1129What: /sys/.../events/in_accel_x_thresh_rising_period 1130What: /sys/.../events/in_accel_x_thresh_falling_period 1131What: /sys/.../events/in_accel_x_roc_rising_period 1132What: /sys/.../events/in_accel_x_roc_falling_period 1133What: /sys/.../events/in_accel_y_thresh_rising_period 1134What: /sys/.../events/in_accel_y_thresh_falling_period 1135What: /sys/.../events/in_accel_y_roc_rising_period 1136What: /sys/.../events/in_accel_y_roc_falling_period 1137What: /sys/.../events/in_accel_z_thresh_rising_period 1138What: /sys/.../events/in_accel_z_thresh_falling_period 1139What: /sys/.../events/in_accel_z_roc_rising_period 1140What: /sys/.../events/in_accel_z_roc_falling_period 1141What: /sys/.../events/in_anglvel_x_thresh_rising_period 1142What: /sys/.../events/in_anglvel_x_thresh_falling_period 1143What: /sys/.../events/in_anglvel_x_roc_rising_period 1144What: /sys/.../events/in_anglvel_x_roc_falling_period 1145What: /sys/.../events/in_anglvel_y_thresh_rising_period 1146What: /sys/.../events/in_anglvel_y_thresh_falling_period 1147What: /sys/.../events/in_anglvel_y_roc_rising_period 1148What: /sys/.../events/in_anglvel_y_roc_falling_period 1149What: /sys/.../events/in_anglvel_z_thresh_rising_period 1150What: /sys/.../events/in_anglvel_z_thresh_falling_period 1151What: /sys/.../events/in_anglvel_z_roc_rising_period 1152What: /sys/.../events/in_anglvel_z_roc_falling_period 1153What: /sys/.../events/in_magn_x_thresh_rising_period 1154What: /sys/.../events/in_magn_x_thresh_falling_period 1155What: /sys/.../events/in_magn_x_roc_rising_period 1156What: /sys/.../events/in_magn_x_roc_falling_period 1157What: /sys/.../events/in_magn_y_thresh_rising_period 1158What: /sys/.../events/in_magn_y_thresh_falling_period 1159What: /sys/.../events/in_magn_y_roc_rising_period 1160What: /sys/.../events/in_magn_y_roc_falling_period 1161What: /sys/.../events/in_magn_z_thresh_rising_period 1162What: /sys/.../events/in_magn_z_thresh_falling_period 1163What: /sys/.../events/in_magn_z_roc_rising_period 1164What: /sys/.../events/in_magn_z_roc_falling_period 1165What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period 1166What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period 1167What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period 1168What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period 1169What: /sys/.../events/in_rot_from_north_true_thresh_rising_period 1170What: /sys/.../events/in_rot_from_north_true_thresh_falling_period 1171What: /sys/.../events/in_rot_from_north_true_roc_rising_period 1172What: /sys/.../events/in_rot_from_north_true_roc_falling_period 1173What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period 1174What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period 1175What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period 1176What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period 1177What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period 1178What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period 1179What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period 1180What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period 1181What: /sys/.../events/in_voltageY_supply_thresh_rising_period 1182What: /sys/.../events/in_voltageY_supply_thresh_falling_period 1183What: /sys/.../events/in_voltageY_supply_roc_rising_period 1184What: /sys/.../events/in_voltageY_supply_roc_falling_period 1185What: /sys/.../events/in_voltageY_thresh_rising_period 1186What: /sys/.../events/in_voltageY_thresh_falling_period 1187What: /sys/.../events/in_voltageY_roc_rising_period 1188What: /sys/.../events/in_voltageY_roc_falling_period 1189What: /sys/.../events/in_tempY_thresh_rising_period 1190What: /sys/.../events/in_tempY_thresh_falling_period 1191What: /sys/.../events/in_tempY_roc_rising_period 1192What: /sys/.../events/in_tempY_roc_falling_period 1193What: /sys/.../events/in_accel_x&y&z_mag_falling_period 1194What: /sys/.../events/in_intensity0_thresh_period 1195What: /sys/.../events/in_proximity0_thresh_period 1196What: /sys/.../events/in_activity_still_thresh_rising_period 1197What: /sys/.../events/in_activity_still_thresh_falling_period 1198What: /sys/.../events/in_activity_walking_thresh_rising_period 1199What: /sys/.../events/in_activity_walking_thresh_falling_period 1200What: /sys/.../events/in_activity_jogging_thresh_rising_period 1201What: /sys/.../events/in_activity_jogging_thresh_falling_period 1202What: /sys/.../events/in_activity_running_thresh_rising_period 1203What: /sys/.../events/in_activity_running_thresh_falling_period 1204What: /sys/.../events/in_illuminance_thresh_either_period 1205KernelVersion: 2.6.37 1206Contact: linux-iio@vger.kernel.org 1207Description: 1208 Period of time (in seconds) for which the condition must be 1209 met before an event is generated. If direction is not 1210 specified then this period applies to both directions. 1211 1212What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db 1213What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db 1214What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db 1215KernelVersion: 4.2 1216Contact: linux-iio@vger.kernel.org 1217Description: 1218 If a low pass filter can be applied to the event generation 1219 this property gives its 3db frequency in Hz. 1220 A value of zero disables the filter. 1221 1222What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db 1223What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db 1224What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db 1225KernelVersion: 4.2 1226Contact: linux-iio@vger.kernel.org 1227Description: 1228 If a high pass filter can be applied to the event generation 1229 this property gives its 3db frequency in Hz. 1230 A value of zero disables the filter. 1231 1232What: /sys/.../events/in_activity_still_thresh_rising_en 1233What: /sys/.../events/in_activity_still_thresh_falling_en 1234What: /sys/.../events/in_activity_walking_thresh_rising_en 1235What: /sys/.../events/in_activity_walking_thresh_falling_en 1236What: /sys/.../events/in_activity_jogging_thresh_rising_en 1237What: /sys/.../events/in_activity_jogging_thresh_falling_en 1238What: /sys/.../events/in_activity_running_thresh_rising_en 1239What: /sys/.../events/in_activity_running_thresh_falling_en 1240KernelVersion: 3.19 1241Contact: linux-iio@vger.kernel.org 1242Description: 1243 Enables or disables activity events. Depending on direction 1244 an event is generated when sensor ENTERS or LEAVES a given state. 1245 1246What: /sys/.../events/in_activity_still_thresh_rising_value 1247What: /sys/.../events/in_activity_still_thresh_falling_value 1248What: /sys/.../events/in_activity_walking_thresh_rising_value 1249What: /sys/.../events/in_activity_walking_thresh_falling_value 1250What: /sys/.../events/in_activity_jogging_thresh_rising_value 1251What: /sys/.../events/in_activity_jogging_thresh_falling_value 1252What: /sys/.../events/in_activity_running_thresh_rising_value 1253What: /sys/.../events/in_activity_running_thresh_falling_value 1254KernelVersion: 3.19 1255Contact: linux-iio@vger.kernel.org 1256Description: 1257 Confidence value (in units as percentage) to be used 1258 for deciding when an event should be generated. E.g for 1259 running: If the confidence value reported by the sensor 1260 is greater than in_activity_running_thresh_rising_value 1261 then the sensor ENTERS running state. Conversely, if the 1262 confidence value reported by the sensor is lower than 1263 in_activity_running_thresh_falling_value then the sensor 1264 is LEAVING running state. 1265 1266What: /sys/.../iio:deviceX/events/in_accel_mag_en 1267What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 1268What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 1269What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 1270What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 1271What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 1272What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 1273What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 1274What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 1275What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 1276What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 1277What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 1278What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 1279What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 1280KernelVersion: 2.6.37 1281Contact: linux-iio@vger.kernel.org 1282Description: 1283 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 1284 magnitude of the channel is compared to the threshold, not its 1285 signed value. 1286 1287What: /sys/.../events/in_accel_raw_mag_value 1288What: /sys/.../events/in_accel_x_raw_mag_rising_value 1289What: /sys/.../events/in_accel_y_raw_mag_rising_value 1290What: /sys/.../events/in_accel_z_raw_mag_rising_value 1291KernelVersion: 2.6.37 1292Contact: linux-iio@vger.kernel.org 1293Description: 1294 The value to which the magnitude of the channel is compared. If 1295 number or direction is not specified, applies to all channels of 1296 this type. 1297 1298What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_en 1299What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en 1300What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en 1301What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en 1302What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en 1303What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en 1304KernelVersion: 5.18 1305Contact: linux-iio@vger.kernel.org 1306Description: 1307 Similar to in_accel_mag[_y][_rising|_falling]_en, but the event 1308 value is relative to a reference magnitude. The reference magnitude 1309 includes the graviational acceleration. 1310 1311What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_value 1312What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value 1313What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value 1314What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value 1315What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value 1316What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value 1317KernelVersion: 5.18 1318Contact: linux-iio@vger.kernel.org 1319Description: 1320 The value to which the reference magnitude of the channel is 1321 compared. If the axis is not specified, it applies to all channels 1322 of this type. 1323 1324What: /sys/.../events/in_steps_change_en 1325KernelVersion: 4.0 1326Contact: linux-iio@vger.kernel.org 1327Description: 1328 Event generated when channel passes a threshold on the absolute 1329 change in value. E.g. for steps: a step change event is 1330 generated each time the user takes N steps, where N is set using 1331 in_steps_change_value. 1332 1333What: /sys/.../events/in_steps_change_value 1334KernelVersion: 4.0 1335Contact: linux-iio@vger.kernel.org 1336Description: 1337 Specifies the value of change threshold that the 1338 device is comparing against for the events enabled by 1339 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps: 1340 if set to 3, a step change event will be generated every 3 1341 steps. 1342 1343What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 1344KernelVersion: 2.6.35 1345Contact: linux-iio@vger.kernel.org 1346Description: 1347 The name of the trigger source being used, as per string given 1348 in /sys/class/iio/triggerY/name. 1349 1350What: /sys/bus/iio/devices/iio:deviceX/bufferY/length 1351KernelVersion: 5.11 1352Contact: linux-iio@vger.kernel.org 1353Description: 1354 Number of scans contained by the buffer. 1355 1356What: /sys/bus/iio/devices/iio:deviceX/bufferY/enable 1357KernelVersion: 5.11 1358Contact: linux-iio@vger.kernel.org 1359Description: 1360 Actually start the buffer capture up. Will start trigger 1361 if first device and appropriate. 1362 1363 Note that it might be impossible to configure other attributes, 1364 (e.g.: events, scale, sampling rate) if they impact the currently 1365 active buffer capture session. 1366 1367What: /sys/bus/iio/devices/iio:deviceX/bufferY 1368KernelVersion: 5.11 1369Contact: linux-iio@vger.kernel.org 1370Description: 1371 Directory containing interfaces for elements that will be 1372 captured for a single triggered sample set in the buffer. 1373 1374 Since kernel 5.11 the scan_elements attributes are merged into 1375 the bufferY directory, to be configurable per buffer. 1376 1377What: /sys/.../iio:deviceX/bufferY/in_accel_x_en 1378What: /sys/.../iio:deviceX/bufferY/in_accel_y_en 1379What: /sys/.../iio:deviceX/bufferY/in_accel_z_en 1380What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_en 1381What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_en 1382What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_en 1383What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en 1384What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en 1385What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en 1386What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en 1387What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en 1388What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en 1389What: /sys/.../iio:deviceX/bufferY/in_magn_x_en 1390What: /sys/.../iio:deviceX/bufferY/in_magn_y_en 1391What: /sys/.../iio:deviceX/bufferY/in_magn_z_en 1392What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en 1393What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en 1394What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en 1395What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en 1396What: /sys/.../iio:deviceX/bufferY/in_timestamp_en 1397What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en 1398What: /sys/.../iio:deviceX/bufferY/in_voltageY_en 1399What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en 1400What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_en 1401What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_en 1402What: /sys/.../iio:deviceX/bufferY/in_voltage_i_en 1403What: /sys/.../iio:deviceX/bufferY/in_voltage_q_en 1404What: /sys/.../iio:deviceX/bufferY/in_incli_x_en 1405What: /sys/.../iio:deviceX/bufferY/in_incli_y_en 1406What: /sys/.../iio:deviceX/bufferY/in_pressureY_en 1407What: /sys/.../iio:deviceX/bufferY/in_pressure_en 1408What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_en 1409What: /sys/.../iio:deviceX/bufferY/in_proximity_en 1410KernelVersion: 5.11 1411Contact: linux-iio@vger.kernel.org 1412Description: 1413 Scan element control for triggered data capture. 1414 1415What: /sys/.../iio:deviceX/bufferY/in_accel_type 1416What: /sys/.../iio:deviceX/bufferY/in_deltaangl_type 1417What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_type 1418What: /sys/.../iio:deviceX/bufferY/in_anglvel_type 1419What: /sys/.../iio:deviceX/bufferY/in_magn_type 1420What: /sys/.../iio:deviceX/bufferY/in_incli_type 1421What: /sys/.../iio:deviceX/bufferY/in_voltageY_type 1422What: /sys/.../iio:deviceX/bufferY/in_voltage_type 1423What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type 1424What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_type 1425What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_type 1426What: /sys/.../iio:deviceX/bufferY/in_voltage_i_type 1427What: /sys/.../iio:deviceX/bufferY/in_voltage_q_type 1428What: /sys/.../iio:deviceX/bufferY/in_timestamp_type 1429What: /sys/.../iio:deviceX/bufferY/in_pressureY_type 1430What: /sys/.../iio:deviceX/bufferY/in_pressure_type 1431What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_type 1432What: /sys/.../iio:deviceX/bufferY/in_proximity_type 1433KernelVersion: 5.11 1434Contact: linux-iio@vger.kernel.org 1435Description: 1436 Description of the scan element data storage within the buffer 1437 and hence the form in which it is read from user-space. 1438 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 1439 be or le specifies big or little endian. s or u specifies if 1440 signed (2's complement) or unsigned. bits is the number of bits 1441 of data and storagebits is the space (after padding) that it 1442 occupies in the buffer. shift if specified, is the shift that 1443 needs to be applied prior to masking out unused bits. Some 1444 devices put their data in the middle of the transferred elements 1445 with additional information on both sides. Note that some 1446 devices will have additional information in the unused bits 1447 so to get a clean value, the bits value must be used to mask 1448 the buffer output value appropriately. The storagebits value 1449 also specifies the data alignment. So s48/64>>2 will be a 1450 signed 48 bit integer stored in a 64 bit location aligned to 1451 a 64 bit boundary. To obtain the clean value, shift right 2 1452 and apply a mask to zero the top 16 bits of the result. 1453 For other storage combinations this attribute will be extended 1454 appropriately. 1455 1456What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available 1457KernelVersion: 2.6.37 1458Contact: linux-iio@vger.kernel.org 1459Description: 1460 If the type parameter can take one of a small set of values, 1461 this attribute lists them. 1462 1463What: /sys/.../iio:deviceX/bufferY/in_voltageY_index 1464What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index 1465What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_index 1466What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_index 1467What: /sys/.../iio:deviceX/bufferY/in_voltage_i_index 1468What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index 1469What: /sys/.../iio:deviceX/bufferY/in_accel_x_index 1470What: /sys/.../iio:deviceX/bufferY/in_accel_y_index 1471What: /sys/.../iio:deviceX/bufferY/in_accel_z_index 1472What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_index 1473What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_index 1474What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_index 1475What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index 1476What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index 1477What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index 1478What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index 1479What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index 1480What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index 1481What: /sys/.../iio:deviceX/bufferY/in_magn_x_index 1482What: /sys/.../iio:deviceX/bufferY/in_magn_y_index 1483What: /sys/.../iio:deviceX/bufferY/in_magn_z_index 1484What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index 1485What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index 1486What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index 1487What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index 1488What: /sys/.../iio:deviceX/bufferY/in_incli_x_index 1489What: /sys/.../iio:deviceX/bufferY/in_incli_y_index 1490What: /sys/.../iio:deviceX/bufferY/in_timestamp_index 1491What: /sys/.../iio:deviceX/bufferY/in_pressureY_index 1492What: /sys/.../iio:deviceX/bufferY/in_pressure_index 1493What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_index 1494What: /sys/.../iio:deviceX/bufferY/in_proximity_index 1495KernelVersion: 5.11 1496Contact: linux-iio@vger.kernel.org 1497Description: 1498 A single positive integer specifying the position of this 1499 scan element in the buffer. Note these are not dependent on 1500 what is enabled and may not be contiguous. Thus for user-space 1501 to establish the full layout these must be used in conjunction 1502 with all _en attributes to establish which channels are present, 1503 and the relevant _type attributes to establish the data storage 1504 format. 1505 1506What: /sys/.../iio:deviceX/in_activity_still_input 1507What: /sys/.../iio:deviceX/in_activity_walking_input 1508What: /sys/.../iio:deviceX/in_activity_jogging_input 1509What: /sys/.../iio:deviceX/in_activity_running_input 1510KernelVersion: 3.19 1511Contact: linux-iio@vger.kernel.org 1512Description: 1513 This attribute is used to read the confidence for an activity 1514 expressed in units as percentage. 1515 1516What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 1517KernelVersion: 2.6.38 1518Contact: linux-iio@vger.kernel.org 1519Description: 1520 This attribute is used to read the amount of quadrature error 1521 present in the device at a given time. 1522 1523What: /sys/.../iio:deviceX/in_accelX_power_mode 1524KernelVersion: 3.11 1525Contact: linux-iio@vger.kernel.org 1526Description: 1527 Specifies the chip power mode. 1528 low_noise: reduce noise level from ADC, 1529 low_power: enable low current consumption. 1530 For a list of available output power modes read 1531 in_accel_power_mode_available. 1532 1533What: /sys/.../iio:deviceX/in_energy_input 1534What: /sys/.../iio:deviceX/in_energy_raw 1535KernelVersion: 4.0 1536Contact: linux-iio@vger.kernel.org 1537Description: 1538 This attribute is used to read the energy value reported by the 1539 device (e.g.: human activity sensors report energy burnt by the 1540 user). Units after application of scale are Joules. 1541 1542What: /sys/.../iio:deviceX/in_distance_input 1543What: /sys/.../iio:deviceX/in_distance_raw 1544KernelVersion: 4.0 1545Contact: linux-iio@vger.kernel.org 1546Description: 1547 This attribute is used to read the measured distance to an object 1548 or the distance covered by the user since the last reboot while 1549 activated. Units after application of scale are meters. 1550 1551What: /sys/bus/iio/devices/iio:deviceX/store_eeprom 1552KernelVersion: 3.4.0 1553Contact: linux-iio@vger.kernel.org 1554Description: 1555 Writing '1' stores the current device configuration into 1556 on-chip EEPROM. After power-up or chip reset the device will 1557 automatically load the saved configuration. 1558 1559What: /sys/.../iio:deviceX/in_proximity_raw 1560What: /sys/.../iio:deviceX/in_proximity_input 1561What: /sys/.../iio:deviceX/in_proximityY_raw 1562KernelVersion: 3.4 1563Contact: linux-iio@vger.kernel.org 1564Description: 1565 Proximity measurement indicating that some 1566 object is near the sensor, usually by observing 1567 reflectivity of infrared or ultrasound emitted. 1568 1569 Often these sensors are unit less and as such conversion 1570 to SI units is not possible. Higher proximity measurements 1571 indicate closer objects, and vice versa. Units after 1572 application of scale and offset are meters. 1573 1574What: /sys/.../iio:deviceX/in_illuminance_input 1575What: /sys/.../iio:deviceX/in_illuminance_raw 1576What: /sys/.../iio:deviceX/in_illuminanceY_input 1577What: /sys/.../iio:deviceX/in_illuminanceY_raw 1578What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw 1579What: /sys/.../iio:deviceX/in_illuminance_ir_raw 1580What: /sys/.../iio:deviceX/in_illuminance_clear_raw 1581KernelVersion: 3.4 1582Contact: linux-iio@vger.kernel.org 1583Description: 1584 Illuminance measurement, units after application of scale 1585 and offset are lux. 1586 1587What: /sys/.../iio:deviceX/in_intensityY_raw 1588What: /sys/.../iio:deviceX/in_intensityY_ir_raw 1589What: /sys/.../iio:deviceX/in_intensityY_both_raw 1590What: /sys/.../iio:deviceX/in_intensityY_uv_raw 1591What: /sys/.../iio:deviceX/in_intensityY_uva_raw 1592What: /sys/.../iio:deviceX/in_intensityY_uvb_raw 1593What: /sys/.../iio:deviceX/in_intensityY_duv_raw 1594KernelVersion: 3.4 1595Contact: linux-iio@vger.kernel.org 1596Description: 1597 Unit-less light intensity. Modifiers both and ir indicate 1598 that measurements contain visible and infrared light 1599 components or just infrared light, respectively. Modifier 1600 uv indicates that measurements contain ultraviolet light 1601 components. Modifiers uva, uvb and duv indicate that 1602 measurements contain A, B or deep (C) ultraviolet light 1603 components respectively. 1604 1605What: /sys/.../iio:deviceX/in_uvindex_input 1606KernelVersion: 4.6 1607Contact: linux-iio@vger.kernel.org 1608Description: 1609 UV light intensity index measuring the human skin's response to 1610 different wavelength of sunlight weighted according to the 1611 standardised CIE Erythemal Action Spectrum. UV index values range 1612 from 0 (low) to >=11 (extreme). 1613 1614What: /sys/.../iio:deviceX/in_intensity_integration_time 1615What: /sys/.../iio:deviceX/in_intensity_red_integration_time 1616What: /sys/.../iio:deviceX/in_intensity_green_integration_time 1617What: /sys/.../iio:deviceX/in_intensity_blue_integration_time 1618What: /sys/.../iio:deviceX/in_intensity_clear_integration_time 1619What: /sys/.../iio:deviceX/in_illuminance_integration_time 1620KernelVersion: 3.12 1621Contact: linux-iio@vger.kernel.org 1622Description: 1623 This attribute is used to get/set the integration time in 1624 seconds. If shared across all channels of a given type, 1625 <type>_integration_time is used. 1626 1627What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time 1628KernelVersion: 4.0 1629Contact: linux-iio@vger.kernel.org 1630Description: 1631 Number of seconds in which to compute speed. 1632 1633What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw 1634KernelVersion: 3.15 1635Contact: linux-iio@vger.kernel.org 1636Description: 1637 Raw value of quaternion components using a format 1638 x y z w. Here x, y, and z component represents the axis about 1639 which a rotation will occur and w component represents the 1640 amount of rotation. 1641 1642What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw 1643What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw 1644What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw 1645What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw 1646KernelVersion: 3.15 1647Contact: linux-iio@vger.kernel.org 1648Description: 1649 Raw value of rotation from true/magnetic north measured with 1650 or without compensation from tilt sensors. 1651 1652What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw 1653What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw 1654What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw 1655KernelVersion: 3.18 1656Contact: linux-iio@vger.kernel.org 1657Description: 1658 Raw current measurement from channel X. Units are in milliamps 1659 after application of scale and offset. If no offset or scale is 1660 present, output should be considered as processed with the 1661 unit in milliamps. 1662 1663 Channels with 'i' and 'q' modifiers always exist in pairs and both 1664 channels refer to the same signal. The 'i' channel contains the in-phase 1665 component of the signal while the 'q' channel contains the quadrature 1666 component. 1667 1668What: /sys/.../iio:deviceX/in_energy_en 1669What: /sys/.../iio:deviceX/in_distance_en 1670What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en 1671What: /sys/.../iio:deviceX/in_steps_en 1672KernelVersion: 3.19 1673Contact: linux-iio@vger.kernel.org 1674Description: 1675 Activates a device feature that runs in firmware/hardware. 1676 E.g. for steps: the pedometer saves power while not used; 1677 when activated, it will count the steps taken by the user in 1678 firmware and export them through in_steps_input. 1679 1680What: /sys/.../iio:deviceX/in_steps_input 1681KernelVersion: 3.19 1682Contact: linux-iio@vger.kernel.org 1683Description: 1684 This attribute is used to read the number of steps taken by the user 1685 since the last reboot while activated. 1686 1687What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input 1688What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw 1689KernelVersion: 3.19 1690Contact: linux-iio@vger.kernel.org 1691Description: 1692 This attribute is used to read the current speed value of the 1693 user (which is the norm or magnitude of the velocity vector). 1694 Units after application of scale are m/s. 1695 1696What: /sys/.../iio:deviceX/in_steps_debounce_count 1697KernelVersion: 4.0 1698Contact: linux-iio@vger.kernel.org 1699Description: 1700 Specifies the number of steps that must occur within 1701 in_steps_filter_debounce_time for the pedometer to decide the 1702 consumer is making steps. 1703 1704What: /sys/.../iio:deviceX/in_steps_debounce_time 1705KernelVersion: 4.0 1706Contact: linux-iio@vger.kernel.org 1707Description: 1708 Specifies number of seconds in which we compute the steps 1709 that occur in order to decide if the consumer is making steps. 1710 1711What: /sys/bus/iio/devices/iio:deviceX/bufferY/watermark 1712KernelVersion: 5.11 1713Contact: linux-iio@vger.kernel.org 1714Description: 1715 A single positive integer specifying the maximum number of scan 1716 elements to wait for. 1717 1718 Poll will block until the watermark is reached. 1719 1720 Blocking read will wait until the minimum between the requested 1721 read amount or the low water mark is available. 1722 1723 Non-blocking read will retrieve the available samples from the 1724 buffer even if there are less samples then watermark level. This 1725 allows the application to block on poll with a timeout and read 1726 the available samples after the timeout expires and thus have a 1727 maximum delay guarantee. 1728 1729What: /sys/bus/iio/devices/iio:deviceX/bufferY/data_available 1730KernelVersion: 5.11 1731Contact: linux-iio@vger.kernel.org 1732Description: 1733 A read-only value indicating the bytes of data available in the 1734 buffer. In the case of an output buffer, this indicates the 1735 amount of empty space available to write data to. In the case of 1736 an input buffer, this indicates the amount of data available for 1737 reading. 1738 1739What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled 1740KernelVersion: 4.2 1741Contact: linux-iio@vger.kernel.org 1742Description: 1743 A read-only boolean value that indicates if the hardware fifo is 1744 currently enabled or disabled. If the device does not have a 1745 hardware fifo this entry is not present. 1746 The hardware fifo is enabled when the buffer is enabled if the 1747 current hardware fifo watermark level is set and other current 1748 device settings allows it (e.g. if a trigger is set that samples 1749 data differently that the hardware fifo does then hardware fifo 1750 will not enabled). 1751 1752 If the hardware fifo is enabled and the level of the hardware 1753 fifo reaches the hardware fifo watermark level the device will 1754 flush its hardware fifo to the device buffer. Doing a non 1755 blocking read on the device when no samples are present in the 1756 device buffer will also force a flush. 1757 1758 When the hardware fifo is enabled there is no need to use a 1759 trigger to use buffer mode since the watermark settings 1760 guarantees that the hardware fifo is flushed to the device 1761 buffer. 1762 1763What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout 1764KernelVersion: 4.12 1765Contact: linux-iio@vger.kernel.org 1766Description: 1767 A read/write property to provide capability to delay reporting of 1768 samples till a timeout is reached. This allows host processors to 1769 sleep, while the sensor is storing samples in its internal fifo. 1770 The maximum timeout in seconds can be specified by setting 1771 hwfifo_timeout.The current delay can be read by reading 1772 hwfifo_timeout. A value of 0 means that there is no timeout. 1773 1774What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark 1775KernelVersion: 4.2 1776Contact: linux-iio@vger.kernel.org 1777Description: 1778 Read-only entry that contains a single integer specifying the 1779 current watermark level for the hardware fifo. If the device 1780 does not have a hardware fifo this entry is not present. 1781 The watermark level for the hardware fifo is set by the driver 1782 based on the value set by the user in buffer/watermark but 1783 taking into account hardware limitations (e.g. most hardware 1784 buffers are limited to 32-64 samples, some hardware buffers 1785 watermarks are fixed or have minimum levels). A value of 0 1786 means that the hardware watermark is unset. 1787 1788What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min 1789KernelVersion: 4.2 1790Contact: linux-iio@vger.kernel.org 1791Description: 1792 A single positive integer specifying the minimum watermark level 1793 for the hardware fifo of this device. If the device does not 1794 have a hardware fifo this entry is not present. 1795 1796 If the user sets buffer/watermark to a value less than this one, 1797 then the hardware watermark will remain unset. 1798 1799What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max 1800KernelVersion: 4.2 1801Contact: linux-iio@vger.kernel.org 1802Description: 1803 A single positive integer specifying the maximum watermark level 1804 for the hardware fifo of this device. If the device does not 1805 have a hardware fifo this entry is not present. 1806 1807 If the user sets buffer/watermark to a value greater than this 1808 one, then the hardware watermark will be capped at this value. 1809 1810What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available 1811KernelVersion: 4.2 1812Contact: linux-iio@vger.kernel.org 1813Description: 1814 A list of positive integers specifying the available watermark 1815 levels for the hardware fifo. This entry is optional and if it 1816 is not present it means that all the values between 1817 hwfifo_watermark_min and hwfifo_watermark_max are supported. 1818 1819 If the user sets buffer/watermark to a value greater than 1820 hwfifo_watermak_min but not equal to any of the values in this 1821 list, the driver will chose an appropriate value for the 1822 hardware fifo watermark level. 1823 1824What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity 1825What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity 1826What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity 1827What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity 1828KernelVersion: 4.1 1829Contact: linux-iio@vger.kernel.org 1830Description: 1831 The emissivity ratio of the surface in the field of view of the 1832 contactless temperature sensor. Emissivity varies from 0 to 1, 1833 with 1 being the emissivity of a black body. 1834 1835What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio 1836What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio 1837What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio 1838KernelVersion: 4.2 1839Contact: linux-iio@vger.kernel.org 1840Description: 1841 Hardware applied number of measurements for acquiring one 1842 data point. The HW will do <type>[_name]_oversampling_ratio 1843 measurements and return the average value as output data. Each 1844 value resulted from <type>[_name]_oversampling_ratio measurements 1845 is considered as one sample for <type>[_name]_sampling_frequency. 1846 1847What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw 1848What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw 1849What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw 1850What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw 1851What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw 1852What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw 1853What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw 1854What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw 1855What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw 1856What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw 1857What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw 1858What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw 1859KernelVersion: 4.3 1860Contact: linux-iio@vger.kernel.org 1861Description: 1862 Raw (unscaled no offset etc.) reading of a substance. Units 1863 after application of scale and offset are percents. 1864 1865What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw 1866What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw 1867What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw 1868What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw 1869KernelVersion: 4.3 1870Contact: linux-iio@vger.kernel.org 1871Description: 1872 Raw (unscaled no offset etc.) resistance reading. 1873 Units after application of scale and offset are ohms. 1874 1875What: /sys/bus/iio/devices/iio:deviceX/heater_enable 1876KernelVersion: 4.1.0 1877Contact: linux-iio@vger.kernel.org 1878Description: 1879 '1' (enable) or '0' (disable) specifying the enable 1880 of heater function. Same reading values apply. 1881 1882 This ABI is especially applicable for humidity sensors 1883 to heatup the device and get rid of any condensation 1884 in some humidity environment 1885 1886What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw 1887KernelVersion: 4.5 1888Contact: linux-iio@vger.kernel.org 1889Description: 1890 Raw (unscaled no offset etc.) pH reading of a substance as a negative 1891 base-10 logarithm of hydrodium ions in a litre of water. 1892 1893What: /sys/bus/iio/devices/iio:deviceX/mount_matrix 1894What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix 1895What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix 1896What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix 1897What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix 1898KernelVersion: 4.6 1899Contact: linux-iio@vger.kernel.org 1900Description: 1901 Mounting matrix for IIO sensors. This is a rotation matrix which 1902 informs userspace about sensor chip's placement relative to the 1903 main hardware it is mounted on. 1904 1905 Main hardware placement is defined according to the local 1906 reference frame related to the physical quantity the sensor 1907 measures. 1908 1909 Given that the rotation matrix is defined in a board specific 1910 way (platform data and / or device-tree), the main hardware 1911 reference frame definition is left to the implementor's choice 1912 (see below for a magnetometer example). 1913 1914 Applications should apply this rotation matrix to samples so 1915 that when main hardware reference frame is aligned onto local 1916 reference frame, then sensor chip reference frame is also 1917 perfectly aligned with it. 1918 1919 Matrix is a 3x3 unitary matrix and typically looks like 1920 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix 1921 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware 1922 are perfectly aligned with each other. 1923 1924 For example, a mounting matrix for a magnetometer sensor informs 1925 userspace about sensor chip's ORIENTATION relative to the main 1926 hardware. 1927 1928 More specifically, main hardware orientation is defined with 1929 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where : 1930 1931 * Y is in the ground plane and positive towards magnetic North ; 1932 * X is in the ground plane, perpendicular to the North axis and 1933 positive towards the East ; 1934 * Z is perpendicular to the ground plane and positive upwards. 1935 1936 An implementor might consider that for a hand-held device, a 1937 'natural' orientation would be 'front facing camera at the top'. 1938 The main hardware reference frame could then be described as : 1939 1940 * Y is in the plane of the screen and is positive towards the 1941 top of the screen ; 1942 * X is in the plane of the screen, perpendicular to Y axis, and 1943 positive towards the right hand side of the screen ; 1944 * Z is perpendicular to the screen plane and positive out of the 1945 screen. 1946 1947 Another example for a quadrotor UAV might be : 1948 1949 * Y is in the plane of the propellers and positive towards the 1950 front-view camera; 1951 * X is in the plane of the propellers, perpendicular to Y axis, 1952 and positive towards the starboard side of the UAV ; 1953 * Z is perpendicular to propellers plane and positive upwards. 1954 1955What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw 1956KernelVersion: 4.8 1957Contact: linux-iio@vger.kernel.org 1958Description: 1959 Raw (unscaled no offset etc.) electric conductivity reading. 1960 Units after application of scale and offset are siemens per 1961 meter. 1962 1963What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw 1964KernelVersion: 4.10 1965Contact: linux-iio@vger.kernel.org 1966Description: 1967 This interface is deprecated; please use the Counter subsystem. 1968 1969 Raw counter device counts from channel Y. For quadrature 1970 counters, multiplication by an available [Y]_scale results in 1971 the counts of a single quadrature signal phase from channel Y. 1972 1973What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw 1974KernelVersion: 4.10 1975Contact: linux-iio@vger.kernel.org 1976Description: 1977 This interface is deprecated; please use the Counter subsystem. 1978 1979 Raw counter device index value from channel Y. This attribute 1980 provides an absolute positional reference (e.g. a pulse once per 1981 revolution) which may be used to home positional systems as 1982 required. 1983 1984What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available 1985KernelVersion: 4.12 1986Contact: linux-iio@vger.kernel.org 1987Description: 1988 This interface is deprecated; please use the Counter subsystem. 1989 1990 A list of possible counting directions which are: 1991 1992 - "up" : counter device is increasing. 1993 - "down": counter device is decreasing. 1994 1995What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction 1996KernelVersion: 4.12 1997Contact: linux-iio@vger.kernel.org 1998Description: 1999 This interface is deprecated; please use the Counter subsystem. 2000 2001 Raw counter device counters direction for channel Y. 2002 2003What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_label 2004What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_label 2005KernelVersion: 5.8 2006Contact: linux-iio@vger.kernel.org 2007Description: 2008 Optional symbolic label to a device channel. 2009 If a label is defined for this channel add that to the channel 2010 specific attributes. This is useful for userspace to be able to 2011 better identify an individual channel. 2012 2013What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw 2014KernelVersion: 4.18 2015Contact: linux-iio@vger.kernel.org 2016Description: 2017 Raw (unscaled) phase difference reading from channel Y. 2018 Units after application of scale and offset are radians. 2019 2020What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input 2021What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input 2022What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input 2023What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input 2024What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input 2025What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input 2026What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input 2027What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input 2028KernelVersion: 4.22 2029Contact: linux-iio@vger.kernel.org 2030Description: 2031 Mass concentration reading of particulate matter in ug / m3. 2032 pmX consists of particles with aerodynamic diameter less or 2033 equal to X micrometers. 2034 2035What: /sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available 2036Date: November 2019 2037KernelVersion: 5.4 2038Contact: linux-iio@vger.kernel.org 2039Description: 2040 List of valid periods (in seconds) for which the light intensity 2041 must be above the threshold level before interrupt is asserted. 2042 2043What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency 2044KernelVersion: 5.5 2045Contact: linux-iio@vger.kernel.org 2046Description: 2047 Center frequency in Hz for a notch filter. Used i.e. for line 2048 noise suppression. 2049 2050What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type 2051KernelVersion: 5.5 2052Contact: linux-iio@vger.kernel.org 2053Description: 2054 One of the following thermocouple types: B, E, J, K, N, R, S, T. 2055 2056What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient 2057What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient 2058KernelVersion: 5.10 2059Contact: linux-iio@vger.kernel.org 2060Description: 2061 Calibrated ambient temperature for object temperature 2062 calculation in milli degrees Celsius. 2063 2064What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw 2065What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw 2066What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw 2067KernelVersion: 5.10 2068Contact: linux-iio@vger.kernel.org 2069Description: 2070 Unscaled light intensity according to CIE 1931/DIN 5033 color space. 2071 Units after application of scale are nano nanowatts per square meter. 2072 2073What: /sys/bus/iio/devices/iio:deviceX/in_anglY_label 2074KernelVersion: 5.12 2075Contact: linux-iio@vger.kernel.org 2076Description: 2077 Optional symbolic label for channel Y. 2078 For Intel hid hinge sensor, the label values are: 2079 hinge, keyboard, screen. It means the three channels 2080 each correspond respectively to hinge angle, keyboard angle, 2081 and screen angle. 2082 2083What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative 2084What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative 2085KernelVersion: 5.12 2086Contact: linux-iio@vger.kernel.org 2087Description: 2088 Specify the percent for light sensor relative to the channel 2089 absolute value that a data field should change before an event 2090 is generated. Units are a percentage of the prior reading. 2091 2092What: /sys/bus/iio/devices/iio:deviceX/calibration_auto_enable 2093Date: June 2020 2094KernelVersion: 5.8 2095Contact: linux-iio@vger.kernel.org 2096Description: 2097 Some sensors have the ability to apply auto calibration at 2098 runtime. For example, it may be necessary to compensate for 2099 contaminant build-up in a measurement chamber or optical 2100 element deterioration that would otherwise lead to sensor drift. 2101 2102 Writing 1 or 0 to this attribute will respectively activate or 2103 deactivate this auto calibration function. 2104 2105 Upon reading, the current status is returned. 2106 2107What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value 2108Date: June 2020 2109KernelVersion: 5.8 2110Contact: linux-iio@vger.kernel.org 2111Description: 2112 Some sensors have the ability to apply a manual calibration using 2113 a known measurement value, perhaps obtained from an external 2114 reference device. 2115 2116 Writing a value to this function will force such a calibration 2117 change. For the scd30 the value should be from the range 2118 [400 1 2000]. 2119 2120 Note for the scd30 that a valid value may only be obtained once 2121 it is has been written. Until then any read back of this value 2122 should be ignored. As for the scd4x an error will be returned 2123 immediately if the manual calibration has failed. 2124 2125What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available 2126KernelVersion: 5.15 2127Contact: linux-iio@vger.kernel.org 2128Description: 2129 Available range for the forced calibration value, expressed as: 2130 2131 - a range specified as "[min step max]" 2132 2133What: /sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency 2134What: /sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency 2135What: /sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency 2136KernelVersion: 5.20 2137Contact: linux-iio@vger.kernel.org 2138Description: 2139 Some devices have separate controls of sampling frequency for 2140 individual channels. If multiple channels are enabled in a scan, 2141 then the sampling_frequency of the scan may be computed from the 2142 per channel sampling frequencies. 2143 2144What: /sys/.../events/in_accel_gesture_singletap_en 2145What: /sys/.../events/in_accel_gesture_doubletap_en 2146KernelVersion: 6.1 2147Contact: linux-iio@vger.kernel.org 2148Description: 2149 Device generates an event on a single or double tap. 2150 2151What: /sys/.../events/in_accel_gesture_singletap_value 2152What: /sys/.../events/in_accel_gesture_doubletap_value 2153KernelVersion: 6.1 2154Contact: linux-iio@vger.kernel.org 2155Description: 2156 Specifies the threshold value that the device is comparing 2157 against to generate the tap gesture event. The lower 2158 threshold value increases the sensitivity of tap detection. 2159 Units and the exact meaning of value are device-specific. 2160 2161What: /sys/.../events/in_accel_gesture_tap_value_available 2162KernelVersion: 6.1 2163Contact: linux-iio@vger.kernel.org 2164Description: 2165 Lists all available threshold values which can be used to 2166 modify the sensitivity of the tap detection. 2167 2168What: /sys/.../events/in_accel_gesture_singletap_reset_timeout 2169What: /sys/.../events/in_accel_gesture_doubletap_reset_timeout 2170KernelVersion: 6.1 2171Contact: linux-iio@vger.kernel.org 2172Description: 2173 Specifies the timeout value in seconds for the tap detector 2174 to not to look for another tap event after the event as 2175 occurred. Basically the minimum quiet time between the two 2176 single-tap's or two double-tap's. 2177 2178What: /sys/.../events/in_accel_gesture_tap_reset_timeout_available 2179KernelVersion: 6.1 2180Contact: linux-iio@vger.kernel.org 2181Description: 2182 Lists all available tap reset timeout values. Units in seconds. 2183 2184What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay 2185KernelVersion: 6.1 2186Contact: linux-iio@vger.kernel.org 2187Description: 2188 Specifies the minimum quiet time in seconds between the two 2189 taps of a double tap. 2190 2191What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available 2192KernelVersion: 6.1 2193Contact: linux-iio@vger.kernel.org 2194Description: 2195 Lists all available delay values between two taps in the double 2196 tap. Units in seconds. 2197 2198What: /sys/.../events/in_accel_gesture_tap_maxtomin_time 2199KernelVersion: 6.1 2200Contact: linux-iio@vger.kernel.org 2201Description: 2202 Specifies the maximum time difference allowed between upper 2203 and lower peak of tap to consider it as the valid tap event. 2204 Units in seconds. 2205 2206What: /sys/.../events/in_accel_gesture_tap_maxtomin_time_available 2207KernelVersion: 6.1 2208Contact: linux-iio@vger.kernel.org 2209Description: 2210 Lists all available time values between upper peak to lower 2211 peak. Units in seconds. 2212 2213What: /sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw 2214What: /sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw 2215What: /sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw 2216KernelVersion: 6.1 2217Contact: linux-iio@vger.kernel.org 2218Description: 2219 Raw (unscaled) euler angles readings. Units after 2220 application of scale are deg. 2221 2222What: /sys/bus/iio/devices/iio:deviceX/serialnumber 2223KernelVersion: 6.1 2224Contact: linux-iio@vger.kernel.org 2225Description: 2226 An example format is 16-bytes, 2-digits-per-byte, HEX-string 2227 representing the sensor unique ID number. 2228 2229What: /sys/.../events/in_proximity_thresh_either_runningperiod 2230KernelVersion: 6.6 2231Contact: linux-iio@vger.kernel.org 2232Description: 2233 A running period of time (in seconds) for which 2234 in_proximity_thresh_either_runningcount amount of conditions 2235 must occur before an event is generated. If direction is not 2236 specified then this period applies to both directions. 2237 2238What: /sys/.../events/in_proximity_thresh_either_runningcount 2239KernelVersion: 6.6 2240Contact: linux-iio@vger.kernel.org 2241Description: 2242 Number of conditions that must occur, during a running 2243 period, before an event is generated. 2244 2245What: /sys/bus/iio/devices/iio:deviceX/in_colortemp_raw 2246KernelVersion: 6.7 2247Contact: linux-iio@vger.kernel.org 2248Description: 2249 Represents light color temperature, which measures light color 2250 temperature in Kelvin. 2251 2252What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw 2253What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw 2254KernelVersion: 6.7 2255Contact: linux-iio@vger.kernel.org 2256Description: 2257 The x and y light color coordinate on the CIE 1931 chromaticity 2258 diagram. 2259 2260What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label 2261What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label 2262What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label 2263What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label 2264What: /sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label 2265What: /sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label 2266What: /sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label 2267KernelVersion: 6.7 2268Contact: linux-iio@vger.kernel.org 2269Description: 2270 Optional symbolic label to a device channel event. 2271 If a label is defined for this event add that to the event 2272 specific attributes. This is useful for userspace to be able to 2273 better identify an individual event. 2274 2275What: /sys/.../events/in_accel_gesture_tap_wait_timeout 2276KernelVersion: 6.7 2277Contact: linux-iio@vger.kernel.org 2278Description: 2279 Enable tap gesture confirmation with timeout. 2280 2281What: /sys/.../events/in_accel_gesture_tap_wait_dur 2282KernelVersion: 6.7 2283Contact: linux-iio@vger.kernel.org 2284Description: 2285 Timeout value in seconds for tap gesture confirmation. 2286 2287What: /sys/.../events/in_accel_gesture_tap_wait_dur_available 2288KernelVersion: 6.7 2289Contact: linux-iio@vger.kernel.org 2290Description: 2291 List of available timeout value for tap gesture confirmation. 2292