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/iio:deviceX/events/sampling_frequency 98What: /sys/bus/iio/devices/triggerX/sampling_frequency 99KernelVersion: 2.6.35 100Contact: linux-iio@vger.kernel.org 101Description: 102 Some devices have internal clocks. This parameter sets the 103 resulting sampling frequency. In many devices this 104 parameter has an effect on input filters etc. rather than 105 simply controlling when the input is sampled. As this 106 affects data ready triggers, hardware buffers and the sysfs 107 direct access interfaces, it may be found in any of the 108 relevant directories. If it affects all of the above 109 then it is to be found in the base device directory. 110 111 The stm32-timer-trigger has the additional characteristic that 112 a sampling_frequency of 0 is defined to stop sampling. 113 114What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 115What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available 116What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available 117What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 118What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 119KernelVersion: 2.6.35 120Contact: linux-iio@vger.kernel.org 121Description: 122 When the internal sampling clock can only take a specific set of 123 frequencies, we can specify the available values with: 124 125 - a small discrete set of values like "0 2 4 6 8" 126 - a range with minimum, step and maximum frequencies like 127 "[min step max]" 128 129What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 130KernelVersion: 2.6.38 131Contact: linux-iio@vger.kernel.org 132Description: 133 Hardware dependent ADC oversampling. Controls the sampling ratio 134 of the digital filter if available. 135 136What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 137KernelVersion: 2.6.38 138Contact: linux-iio@vger.kernel.org 139Description: 140 Hardware dependent values supported by the oversampling filter. 141 142What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 143What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 144KernelVersion: 2.6.35 145Contact: linux-iio@vger.kernel.org 146Description: 147 Raw (unscaled no bias removal etc.) voltage measurement from 148 channel Y. In special cases where the channel does not 149 correspond to externally available input one of the named 150 versions may be used. The number must always be specified and 151 unique to allow association with event codes. Units after 152 application of scale and offset are millivolts. 153 154 Channels with 'i' and 'q' modifiers always exist in pairs and both 155 channels refer to the same signal. The 'i' channel contains the in-phase 156 component of the signal while the 'q' channel contains the quadrature 157 component. 158 159What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 160KernelVersion: 2.6.35 161Contact: linux-iio@vger.kernel.org 162Description: 163 Raw (unscaled) differential voltage measurement equivalent to 164 channel Y - channel Z where these channel numbers apply to the 165 physically equivalent inputs when non differential readings are 166 separately available. In differential only parts, then all that 167 is required is a consistent labeling. Units after application 168 of scale and offset are millivolts. 169 170What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_rms_raw 171KernelVersion: 6.18 172Contact: linux-iio@vger.kernel.org 173Description: 174 Raw (unscaled) Root Mean Square (RMS) voltage measurement from 175 channel Y. Units after application of scale and offset are 176 millivolts. 177 178What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw 179What: /sys/bus/iio/devices/iio:deviceX/in_powerY_active_raw 180What: /sys/bus/iio/devices/iio:deviceX/in_powerY_reactive_raw 181What: /sys/bus/iio/devices/iio:deviceX/in_powerY_apparent_raw 182KernelVersion: 4.5 183Contact: linux-iio@vger.kernel.org 184Description: 185 Raw (unscaled no bias removal etc.) power measurement from 186 channel Y. The number must always be specified and 187 unique to allow association with event codes. Units after 188 application of scale and offset are milliwatts. 189 190What: /sys/bus/iio/devices/iio:deviceX/in_powerY_powerfactor 191KernelVersion: 6.18 192Contact: linux-iio@vger.kernel.org 193Description: 194 Power factor measurement from channel Y. Power factor is the 195 ratio of active power to apparent power. The value is unitless. 196 197What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 198KernelVersion: 3.2 199Contact: linux-iio@vger.kernel.org 200Description: 201 Raw capacitance measurement from channel Y. Units after 202 application of scale and offset are nanofarads. 203 204What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw 205KernelVersion: 3.2 206Contact: linux-iio@vger.kernel.org 207Description: 208 Raw differential capacitance measurement equivalent to 209 channel Y - channel Z where these channel numbers apply to the 210 physically equivalent inputs when non differential readings are 211 separately available. In differential only parts, then all that 212 is required is a consistent labeling. Units after application 213 of scale and offset are nanofarads. 214 215What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_zeropoint 216KernelVersion: 6.1 217Contact: linux-iio@vger.kernel.org 218Description: 219 For differential channels, this an offset that is applied 220 equally to both inputs. As the reading is of the difference 221 between the two inputs, this should not be applied to the _raw 222 reading by userspace (unlike _offset) and unlike calibbias 223 it does not affect the differential value measured because 224 the effect of _zeropoint cancels out across the two inputs 225 that make up the differential pair. It's purpose is to bring 226 the individual signals, before the differential is measured, 227 within the measurement range of the device. The naming is 228 chosen because if the separate inputs that make the 229 differential pair are drawn on a graph in their 230 _raw units, this is the value that the zero point on the 231 measurement axis represents. It is expressed with the 232 same scaling as _raw. 233 234What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 235What: /sys/bus/iio/devices/iio:deviceX/in_tempY_raw 236What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 237What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 238What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw 239What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw 240KernelVersion: 2.6.35 241Contact: linux-iio@vger.kernel.org 242Description: 243 Raw (unscaled no bias removal etc.) temperature measurement. 244 If an axis is specified it generally means that the temperature 245 sensor is associated with one part of a compound device (e.g. 246 a gyroscope axis). The ambient and object modifiers distinguish 247 between ambient (reference) and distant temperature for contact- 248 less measurements. Units after application of scale and offset 249 are milli degrees Celsius. 250 251What: /sys/bus/iio/devices/iio:deviceX/in_tempY_input 252What: /sys/bus/iio/devices/iio:deviceX/in_temp_input 253KernelVersion: 2.6.38 254Contact: linux-iio@vger.kernel.org 255Description: 256 Scaled temperature measurement in milli degrees Celsius. 257 258What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 259What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 260What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 261KernelVersion: 2.6.35 262Contact: linux-iio@vger.kernel.org 263Description: 264 Acceleration in direction x, y or z (may be arbitrarily assigned 265 but should match other such assignments on device). 266 Has all of the equivalent parameters as per voltageY. Units 267 after application of scale and offset are m/s^2. 268 269What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw 270What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw 271What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw 272KernelVersion: 6.1 273Contact: linux-iio@vger.kernel.org 274Description: 275 As per in_accel_X_raw attributes, but minus the 276 acceleration due to gravity. 277 278What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw 279What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw 280What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw 281KernelVersion: 4.11 282Contact: linux-iio@vger.kernel.org 283Description: 284 Gravity in direction x, y or z (may be arbitrarily assigned 285 but should match other such assignments on device). 286 Units after application of scale and offset are m/s^2. 287 288What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_x_raw 289What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw 290What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw 291KernelVersion: 6.5 292Contact: linux-iio@vger.kernel.org 293Description: 294 Angular displacement between two consecutive samples on x, y or 295 z (may be arbitrarily assigned but should match other such 296 assignments on device). 297 In order to compute the total angular displacement during a 298 desired period of time, the application should sum-up the delta 299 angle samples acquired during that time. 300 Units after application of scale and offset are radians. 301 302What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw 303What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw 304What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw 305KernelVersion: 6.5 306Contact: linux-iio@vger.kernel.org 307Description: 308 The linear velocity change between two consecutive samples on x, 309 y or z (may be arbitrarily assigned but should match other such 310 assignments on device). 311 In order to compute the total linear velocity change during a 312 desired period of time, the application should sum-up the delta 313 velocity samples acquired during that time. 314 Units after application of scale and offset are meters per 315 second. 316 317What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw 318What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw 319KernelVersion: 4.17 320Contact: linux-iio@vger.kernel.org 321Description: 322 Angle of rotation. Units after application of scale and offset 323 are radians. 324 325What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw 326What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw 327KernelVersion: 4.19 328Contact: linux-iio@vger.kernel.org 329Description: 330 Relative position in direction x or y on a pad (may be 331 arbitrarily assigned but should match other such assignments on 332 device). 333 Units after application of scale and offset are milli percents 334 from the pad's size in both directions. Should be calibrated by 335 the consumer. 336 337What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 338What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 339What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 340KernelVersion: 2.6.35 341Contact: linux-iio@vger.kernel.org 342Description: 343 Angular velocity about axis x, y or z (may be arbitrarily 344 assigned). Has all the equivalent parameters as per voltageY. 345 Units after application of scale and offset are radians per 346 second. 347 348What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 349What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 350What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 351KernelVersion: 2.6.35 352Contact: linux-iio@vger.kernel.org 353Description: 354 Inclination raw reading about axis x, y or z (may be 355 arbitrarily assigned). Data converted by application of offset 356 and scale to degrees. 357 358What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 359What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 360What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 361KernelVersion: 2.6.35 362Contact: linux-iio@vger.kernel.org 363Description: 364 Magnetic field along axis x, y or z (may be arbitrarily 365 assigned). Data converted by application of offset 366 then scale to Gauss. 367 368What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 369What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 370What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 371What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_peak_raw 372What: /sys/bus/iio/devices/iio:deviceX/in_temp_peak_raw 373KernelVersion: 2.6.36 374Contact: linux-iio@vger.kernel.org 375Description: 376 Highest value since some reset condition. These 377 attributes allow access to this and are otherwise 378 the direct equivalent of the <type>Y[_name]_raw attributes. 379 380What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_trough_raw 381What: /sys/bus/iio/devices/iio:deviceX/in_temp_trough_raw 382KernelVersion: 6.7 383Contact: linux-iio@vger.kernel.org 384Description: 385 Lowest value since some reset condition. These 386 attributes allow access to this and are otherwise 387 the direct equivalent of the <type>Y[_name]_raw attributes. 388 389What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 390KernelVersion: 2.6.36 391Contact: linux-iio@vger.kernel.org 392Description: 393 A computed peak value based on the sum squared magnitude of 394 the underlying value in the specified directions. 395 396What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw 397What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw 398KernelVersion: 3.8 399Contact: linux-iio@vger.kernel.org 400Description: 401 Raw pressure measurement from channel Y. Units after 402 application of scale and offset are kilopascal. 403 404What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input 405What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input 406KernelVersion: 3.8 407Contact: linux-iio@vger.kernel.org 408Description: 409 Scaled pressure measurement from channel Y, in kilopascal. 410 411What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw 412KernelVersion: 3.14 413Contact: linux-iio@vger.kernel.org 414Description: 415 Raw humidity measurement of air. Units after application of 416 scale and offset are milli percent. 417 418What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input 419KernelVersion: 3.14 420Contact: linux-iio@vger.kernel.org 421Description: 422 Scaled humidity measurement in milli percent. 423 424What: /sys/bus/iio/devices/iio:deviceX/in_Y_mean_raw 425KernelVersion: 3.5 426Contact: linux-iio@vger.kernel.org 427Description: 428 Averaged raw measurement from channel Y. The number of values 429 used for averaging is device specific. The converting rules for 430 normal raw values also applies to the averaged raw values. 431 432What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 433What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 434What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 435What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 436What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_q_offset 437What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_i_offset 438What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 439What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 440What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset 441What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset 442What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset 443What: /sys/bus/iio/devices/iio:deviceX/in_current_offset 444What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 445What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 446What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset 447What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset 448What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset 449What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset 450What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset 451What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset 452What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_offset 453KernelVersion: 2.6.35 454Contact: linux-iio@vger.kernel.org 455Description: 456 If known for a device, offset to be added to <type>[Y]_raw prior 457 to scaling by <type>[Y]_scale in order to obtain value in the 458 <type> units as specified in <type>[Y]_raw documentation. 459 Not present if the offset is always 0 or unknown. If Y or 460 axis <x|y|z> is not present, then the offset applies to all 461 in channels of <type>. 462 May be writable if a variable offset can be applied on the 463 device. Note that this is different to calibbias which 464 is for devices (or drivers) that apply offsets to compensate 465 for variation between different instances of the part, typically 466 adjusted by using some hardware supported calibration procedure. 467 Calibbias is applied internally, offset is applied in userspace 468 to the _raw output. 469 470What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_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-voltage_scale 475What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 476What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 477What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale 478What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale 479What: /sys/bus/iio/devices/iio:deviceX/in_current_scale 480What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale 481What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 482What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 483What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 484What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale 485What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale 486What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 487What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 488What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 489What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 490What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale 491What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale 492What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale 493What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale 494What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale 495What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale 496What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale 497What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale 498What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale 499What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale 500What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale 501What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale 502What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale 503What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale 504What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale 505What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale 506What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_scale 507What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_scale 508What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_scale 509What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale 510KernelVersion: 2.6.35 511Contact: linux-iio@vger.kernel.org 512Description: 513 If known for a device, scale to be applied to <type>Y[_name]_raw 514 post addition of <type>[Y][_name]_offset in order to obtain the 515 measured value in <type> units as specified in 516 <type>[Y][_name]_raw documentation. If shared across all in 517 channels then Y and <x|y|z> are not present and the value is 518 called <type>[Y][_name]_scale. The peak modifier means this 519 value is applied to <type>Y[_name]_peak_raw values. 520 521What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 522What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 523What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 524What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_i_calibbias 525What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_q_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_capacitance_calibbias 530What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibbias 531What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 532What: /sys/bus/iio/devices/iio:deviceX/in_intensityY_calibbias 533What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_calibbias 534What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_calibbias 535What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_calibbias 536What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias 537What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias 538What: /sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias 539What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 540What: /sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias 541What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibbias 542What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias 543What: /sys/bus/iio/devices/iio:deviceX/out_currentY_calibbias 544What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias 545KernelVersion: 2.6.35 546Contact: linux-iio@vger.kernel.org 547Description: 548 Hardware applied calibration offset (assumed to fix production 549 inaccuracies). 550 icm42600: For this device values are real physical offsets 551 expressed in SI units (m/s^2 for accelerometers and rad/s 552 for gyroscope)/ 553 554What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available 555What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available 556What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibbias_available 557What: /sys/bus/iio/devices/iio:deviceX/in_proximity_calibbias_available 558What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibbias_available 559What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibbias_available 560KernelVersion: 5.8 561Contact: linux-iio@vger.kernel.org 562Description: 563 Available values of calibbias. Maybe expressed as either of: 564 565 - a small discrete set of values like "0 2 4 6 8" 566 - a range specified as "[min step max]" 567 568What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay 569KernelVersion: 6.17 570Contact: linux-iio@vger.kernel.org 571Description: 572 Delay of start of conversion from common reference point shared 573 by all channels. Can be writable when used to compensate for 574 delay variation introduced by external filters feeding a 575 simultaneous sampling ADC. 576 577 E.g., for the ad7606 ADC series, this value is intended as a 578 configurable time delay in seconds, to correct delay introduced 579 by an optional external filtering circuit. 580 581What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_convdelay_available 582KernelVersion: 6.16 583Contact: linux-iio@vger.kernel.org 584Description: 585 Available values of convdelay. Maybe expressed as: 586 587 - a range specified as "[min step max]" 588 589 If shared across all channels, <type>_convdelay_available 590 is used. 591 592What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 593What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 594What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 595What: /sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale 596What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 597What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 598What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 599What: /sys/bus/iio/devices/iio:deviceX/in_capacitance_calibscale 600What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale 601What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 602What: /sys/bus/iio/devices/iio:deviceX/in_intensity_both_calibscale 603What: /sys/bus/iio/devices/iio:deviceX/in_intensity_calibscale 604What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ir_calibscale 605What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_calibscale 606What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_calibscale 607What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_calibscale 608What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale 609What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale 610What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 611What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 612What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 613What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 614What: /sys/bus/iio/devices/iio:deviceX/out_currentY_calibscale 615What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_calibscale 616KernelVersion: 2.6.35 617Contact: linux-iio@vger.kernel.org 618Description: 619 Hardware applied calibration scale factor (assumed to fix 620 production inaccuracies). If shared across all channels, 621 <type>_calibscale is used. 622 623What: /sys/bus/iio/devices/iio:deviceX/in_illuminanceY_calibscale_available 624What: /sys/bus/iio/devices/iio:deviceX/in_intensityY_calibscale_available 625What: /sys/bus/iio/devices/iio:deviceX/in_proximityY_calibscale_available 626What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale_available 627KernelVersion: 4.8 628Contact: linux-iio@vger.kernel.org 629Description: 630 Available values of calibscale. Maybe expressed as either of: 631 632 - a small discrete set of values like "1 8 16" 633 - a range specified as "[min step max]" 634 635 If shared across all channels, <type>_calibscale_available is used. 636 637What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender 638What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender 639What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender 640What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender 641KernelVersion: 4.0 642Contact: linux-iio@vger.kernel.org 643Description: 644 Gender of the user (e.g.: male, female) used by some pedometers 645 to compute the stride length, distance, speed and activity 646 type. 647 648What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available 649What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available 650What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available 651What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available 652KernelVersion: 4.0 653Contact: linux-iio@vger.kernel.org 654Description: 655 Lists all available gender values (e.g.: male, female). 656 657What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight 658What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight 659What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight 660What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight 661KernelVersion: 3.19 662Contact: linux-iio@vger.kernel.org 663Description: 664 Height of the user (in meters) used by some pedometers 665 to compute the stride length, distance, speed and activity 666 type. 667 668What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight 669KernelVersion: 4.0 670Contact: linux-iio@vger.kernel.org 671Description: 672 Weight of the user (in kg). It is needed by some pedometers 673 to compute the calories burnt by the user. 674 675What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 676What: /sys/.../iio:deviceX/in_anglvel_scale_available 677What: /sys/.../iio:deviceX/in_magn_scale_available 678What: /sys/.../iio:deviceX/in_illuminance_scale_available 679What: /sys/.../iio:deviceX/in_intensity_scale_available 680What: /sys/.../iio:deviceX/in_proximity_scale_available 681What: /sys/.../iio:deviceX/in_voltageY_scale_available 682What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 683What: /sys/.../iio:deviceX/out_voltageY_scale_available 684What: /sys/.../iio:deviceX/out_altvoltageY_scale_available 685What: /sys/.../iio:deviceX/in_capacitance_scale_available 686What: /sys/.../iio:deviceX/in_pressure_scale_available 687What: /sys/.../iio:deviceX/in_pressureY_scale_available 688KernelVersion: 2.6.35 689Contact: linux-iio@vger.kernel.org 690Description: 691 If a discrete set of scale values is available, they 692 are listed in this attribute. Unlike illumination, 693 multiplying intensity by intensity_scale does not 694 yield value with any standardized unit. 695 696What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 697What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain 698What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain 699What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain 700What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain 701What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain 702What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hardwaregain 703KernelVersion: 2.6.35 704Contact: linux-iio@vger.kernel.org 705Description: 706 Hardware applied gain factor. If shared across all channels, 707 <type>_hardwaregain is used. 708 709What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available 710KernelVersion: 5.10 711Contact: linux-iio@vger.kernel.org 712Description: 713 Lists all available hardware applied gain factors. Shared across all 714 channels. 715 716What: /sys/.../in_accel_filter_low_pass_3db_frequency 717What: /sys/.../in_magn_filter_low_pass_3db_frequency 718What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 719KernelVersion: 3.2 720Contact: linux-iio@vger.kernel.org 721Description: 722 If a known or controllable low pass filter is applied 723 to the underlying data channel, then this parameter 724 gives the 3dB frequency of the filter in Hz. 725 726What: /sys/.../in_accel_filter_high_pass_3db_frequency 727What: /sys/.../in_anglvel_filter_high_pass_3db_frequency 728What: /sys/.../in_magn_filter_high_pass_3db_frequency 729KernelVersion: 4.2 730Contact: linux-iio@vger.kernel.org 731Description: 732 If a known or controllable high pass filter is applied 733 to the underlying data channel, then this parameter 734 gives the 3dB frequency of the filter in Hz. 735 736What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 737What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 738KernelVersion: 2.6.37 739Contact: linux-iio@vger.kernel.org 740Description: 741 Raw (unscaled, no bias etc.) output voltage for 742 channel Y. The number must always be specified and 743 unique if the output corresponds to a single channel. 744 While DAC like devices typically use out_voltage, 745 a continuous frequency generating device, such as 746 a DDS or PLL should use out_altvoltage. 747 748What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 749What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 750KernelVersion: 2.6.37 751Contact: linux-iio@vger.kernel.org 752Description: 753 Raw (unscaled, no bias etc.) output voltage for an aggregate of 754 channel Y, channel Z, etc. This interface is available in cases 755 where a single output sets the value for multiple channels 756 simultaneously. 757 758What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 759What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 760What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 761What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 762KernelVersion: 2.6.38 763Contact: linux-iio@vger.kernel.org 764Description: 765 Specifies the output powerdown mode. 766 DAC output stage is disconnected from the amplifier and 767 1kohm_to_gnd: connected to ground via an 1kOhm resistor, 768 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor, 769 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 770 7.7kohm_to_gnd: connected to ground via a 7.7kOhm resistor, 771 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 772 32kohm_to_gnd: connected to ground via a 32kOhm resistor, 773 42kohm_to_gnd: connected to ground via a 42kOhm resistor, 774 90kohm_to_gnd: connected to ground via a 90kOhm resistor, 775 100kohm_to_gnd: connected to ground via an 100kOhm resistor, 776 125kohm_to_gnd: connected to ground via an 125kOhm resistor, 777 500kohm_to_gnd: connected to ground via a 500kOhm resistor, 778 640kohm_to_gnd: connected to ground via a 640kOhm resistor, 779 three_state: left floating. 780 For a list of available output power down options read 781 outX_powerdown_mode_available. If Y is not present the 782 mode is shared across all outputs. 783 784What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available 785What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 786What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available 787What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 788KernelVersion: 2.6.38 789Contact: linux-iio@vger.kernel.org 790Description: 791 Lists all available output power down modes. 792 If Y is not present the mode is shared across all outputs. 793 794What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 795What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 796What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 797What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 798KernelVersion: 2.6.38 799Contact: linux-iio@vger.kernel.org 800Description: 801 Writing 1 causes output Y to enter the power down mode specified 802 by the corresponding outY_powerdown_mode. DAC output stage is 803 disconnected from the amplifier. Clearing returns to normal 804 operation. Y may be suppressed if all outputs are controlled 805 together. 806 807What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 808KernelVersion: 3.4.0 809Contact: linux-iio@vger.kernel.org 810Description: 811 Output frequency for channel Y in Hz. The number must always be 812 specified and unique if the output corresponds to a single 813 channel. 814 Some drivers have additional constraints: 815 ADF4371 has an integrated VCO with fundamendal output 816 frequency ranging from 4000000000 Hz 8000000000 Hz. 817 818 out_altvoltage0_frequency: 819 A divide by 1, 2, 4, 8, 16, 32 or circuit generates 820 frequencies from 62500000 Hz to 8000000000 Hz. 821 out_altvoltage1_frequency: 822 This channel duplicates the channel 0 frequency 823 out_altvoltage2_frequency: 824 A frequency doubler generates frequencies from 825 8000000000 Hz to 16000000000 Hz. 826 out_altvoltage3_frequency: 827 A frequency quadrupler generates frequencies from 828 16000000000 Hz to 32000000000 Hz. 829 830 Note: writes to one of the channels will affect the frequency of 831 all the other channels, since it involves changing the VCO 832 fundamental output frequency. 833 834What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_i_phase 835What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_q_phase 836What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 837What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_i_phase 838What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_q_phase 839KernelVersion: 3.4.0 840Contact: linux-iio@vger.kernel.org 841Description: 842 Phase in radians of one frequency/clock output Y 843 (out_altvoltageY) relative to another frequency/clock output 844 (out_altvoltageZ) of the device X. The number must always be 845 specified and unique if the output corresponds to a single 846 channel. 847 848What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw 849Date: May 2012 850KernelVersion: 3.5 851Contact: Johan Hovold <jhovold@gmail.com> 852Description: 853 Set/get output current for channel Y. Units after application 854 of scale and offset are milliamps. 855 For some devices current channels are used to specify 856 current supplied to elements used in taking a measurement 857 of a different type. E.g. LED currents. 858 859What: /sys/bus/iio/devices/iio:deviceX/events 860KernelVersion: 2.6.35 861Contact: linux-iio@vger.kernel.org 862Description: 863 Configuration of which hardware generated events are passed up 864 to user-space. 865 866What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 867What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 868What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 869What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 870What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 871What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 872What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 873What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 874What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 875What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 876What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 877What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 878What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 879What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 880What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 881What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 882What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 883What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 884What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en 885What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en 886What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en 887What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en 888What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en 889What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en 890What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en 891What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en 892What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 893What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 894What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 895What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 896What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en 897What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 898What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 899What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en 900What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en 901KernelVersion: 2.6.37 902Contact: linux-iio@vger.kernel.org 903Description: 904 Event generated when channel passes a threshold in the specified 905 (_rising|_falling) direction. If the direction is not specified, 906 then either the device will report an event which ever direction 907 a single threshold value is passed in (e.g. 908 <type>[Y][_name]_<raw|input>_thresh_value) or 909 <type>[Y][_name]_<raw|input>_thresh_rising_value and 910 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 911 different values, but the device can only enable both thresholds 912 or neither. 913 914 Note the driver will assume the last p events requested are 915 to be enabled where p is how many it supports (which may vary 916 depending on the exact set requested. So if you want to be 917 sure you have set what you think you have, check the contents of 918 these attributes after everything is configured. Drivers may 919 have to buffer any parameters so that they are consistent when 920 a given event type is enabled at a future point (and not those for 921 whatever event was previously enabled). 922 923What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 924What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 925What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 926What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 927What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 928What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 929What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 930What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 931What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 932What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 933What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 934What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 935What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 936What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 937What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 938What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 939What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 940What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 941What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en 942What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en 943What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en 944What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en 945What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en 946What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en 947What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en 948What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en 949What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 950What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 951What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 952What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 953What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 954What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 955KernelVersion: 2.6.37 956Contact: linux-iio@vger.kernel.org 957Description: 958 Event generated when channel passes a threshold on the rate of 959 change (1st differential) in the specified (_rising|_falling) 960 direction. If the direction is not specified, then either the 961 device will report an event which ever direction a single 962 threshold value is passed in (e.g. 963 <type>[Y][_name]_<raw|input>_roc_value) or 964 <type>[Y][_name]_<raw|input>_roc_rising_value and 965 <type>[Y][_name]_<raw|input>_roc_falling_value may take 966 different values, but the device can only enable both rate of 967 change thresholds or neither. 968 969 Note the driver will assume the last p events requested are 970 to be enabled where p is however many it supports (which may 971 vary depending on the exact set requested. So if you want to be 972 sure you have set what you think you have, check the contents of 973 these attributes after everything is configured. Drivers may 974 have to buffer any parameters so that they are consistent when 975 a given event type is enabled a future point (and not those for 976 whatever event was previously enabled). 977 978What: /sys/.../events/in_capacitanceY_adaptive_thresh_rising_en 979What: /sys/.../events/in_capacitanceY_adaptive_thresh_falling_en 980KernelVersion: 5.13 981Contact: linux-iio@vger.kernel.org 982Description: 983 Adaptive thresholds are similar to normal fixed thresholds 984 but the value is expressed as an offset from a value which 985 provides a low frequency approximation of the channel itself. 986 Thus these detect if a rapid change occurs in the specified 987 direction which crosses tracking value + offset. 988 Tracking value calculation is devices specific. 989 990What: /sys/.../in_capacitanceY_adaptive_thresh_rising_timeout 991What: /sys/.../in_capacitanceY_adaptive_thresh_falling_timeout 992KernelVersion: 5.11 993Contact: linux-iio@vger.kernel.org 994Description: 995 When adaptive thresholds are used, the tracking signal 996 may adjust too slowly to step changes in the raw signal. 997 Thus these specify the time in seconds for which the 998 difference between the slow tracking signal and the raw 999 signal is allowed to remain out-of-range before a reset 1000 event occurs in which the tracking signal is made equal 1001 to the raw signal, allowing slow tracking to resume and the 1002 adaptive threshold event detection to function as expected. 1003 1004What: /sys/.../events/in_accel_thresh_rising_value 1005What: /sys/.../events/in_accel_thresh_falling_value 1006What: /sys/.../events/in_accel_x_raw_thresh_rising_value 1007What: /sys/.../events/in_accel_x_raw_thresh_falling_value 1008What: /sys/.../events/in_accel_y_raw_thresh_rising_value 1009What: /sys/.../events/in_accel_y_raw_thresh_falling_value 1010What: /sys/.../events/in_accel_z_raw_thresh_rising_value 1011What: /sys/.../events/in_accel_z_raw_thresh_falling_value 1012What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 1013What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 1014What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 1015What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 1016What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 1017What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 1018What: /sys/.../events/in_magn_x_raw_thresh_rising_value 1019What: /sys/.../events/in_magn_x_raw_thresh_falling_value 1020What: /sys/.../events/in_magn_y_raw_thresh_rising_value 1021What: /sys/.../events/in_magn_y_raw_thresh_falling_value 1022What: /sys/.../events/in_magn_z_raw_thresh_rising_value 1023What: /sys/.../events/in_magn_z_raw_thresh_falling_value 1024What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value 1025What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value 1026What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value 1027What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value 1028What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value 1029What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value 1030What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value 1031What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value 1032What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 1033What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 1034What: /sys/.../events/in_voltageY_raw_thresh_rising_value 1035What: /sys/.../events/in_voltageY_raw_thresh_falling_value 1036What: /sys/.../events/in_tempY_raw_thresh_rising_value 1037What: /sys/.../events/in_tempY_raw_thresh_falling_value 1038What: /sys/.../events/in_illuminance0_thresh_falling_value 1039What: /sys/.../events/in_illuminance0_thresh_rising_value 1040What: /sys/.../events/in_proximity0_thresh_falling_value 1041What: /sys/.../events/in_proximity0_thresh_rising_value 1042What: /sys/.../events/in_illuminance_thresh_rising_value 1043What: /sys/.../events/in_illuminance_thresh_falling_value 1044What: /sys/.../events/in_capacitanceY_thresh_rising_value 1045What: /sys/.../events/in_capacitanceY_thresh_falling_value 1046What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value 1047What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value 1048KernelVersion: 2.6.37 1049Contact: linux-iio@vger.kernel.org 1050Description: 1051 Specifies the value of threshold that the device is comparing 1052 against for the events enabled by 1053 <type>Y[_name]_thresh[_rising|falling]_en. 1054 1055 If separate attributes exist for the two directions, but 1056 direction is not specified for this attribute, then a single 1057 threshold value applies to both directions. 1058 1059 The raw or input element of the name indicates whether the 1060 value is in raw device units or in processed units (as _raw 1061 and _input do on sysfs direct channel read attributes). 1062 1063What: /sys/.../events/in_accel_scale 1064What: /sys/.../events/in_accel_peak_scale 1065What: /sys/.../events/in_anglvel_scale 1066What: /sys/.../events/in_magn_scale 1067What: /sys/.../events/in_rot_from_north_magnetic_scale 1068What: /sys/.../events/in_rot_from_north_true_scale 1069What: /sys/.../events/in_voltage_scale 1070What: /sys/.../events/in_voltage_supply_scale 1071What: /sys/.../events/in_temp_scale 1072What: /sys/.../events/in_illuminance_scale 1073What: /sys/.../events/in_proximity_scale 1074KernelVersion: 3.21 1075Contact: linux-iio@vger.kernel.org 1076Description: 1077 Specifies the conversion factor from the standard units 1078 to device specific units used to set the event trigger 1079 threshold. 1080 1081What: /sys/.../events/in_accel_x_thresh_rising_hysteresis 1082What: /sys/.../events/in_accel_x_thresh_falling_hysteresis 1083What: /sys/.../events/in_accel_x_thresh_either_hysteresis 1084What: /sys/.../events/in_accel_y_thresh_rising_hysteresis 1085What: /sys/.../events/in_accel_y_thresh_falling_hysteresis 1086What: /sys/.../events/in_accel_y_thresh_either_hysteresis 1087What: /sys/.../events/in_accel_z_thresh_rising_hysteresis 1088What: /sys/.../events/in_accel_z_thresh_falling_hysteresis 1089What: /sys/.../events/in_accel_z_thresh_either_hysteresis 1090What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis 1091What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis 1092What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis 1093What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis 1094What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis 1095What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis 1096What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis 1097What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis 1098What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis 1099What: /sys/.../events/in_magn_x_thresh_rising_hysteresis 1100What: /sys/.../events/in_magn_x_thresh_falling_hysteresis 1101What: /sys/.../events/in_magn_x_thresh_either_hysteresis 1102What: /sys/.../events/in_magn_y_thresh_rising_hysteresis 1103What: /sys/.../events/in_magn_y_thresh_falling_hysteresis 1104What: /sys/.../events/in_magn_y_thresh_either_hysteresis 1105What: /sys/.../events/in_magn_z_thresh_rising_hysteresis 1106What: /sys/.../events/in_magn_z_thresh_falling_hysteresis 1107What: /sys/.../events/in_magn_z_thresh_either_hysteresis 1108What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis 1109What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis 1110What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis 1111What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis 1112What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis 1113What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis 1114What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis 1115What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis 1116What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis 1117What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis 1118What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis 1119What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis 1120What: /sys/.../events/in_voltageY_thresh_rising_hysteresis 1121What: /sys/.../events/in_voltageY_thresh_falling_hysteresis 1122What: /sys/.../events/in_voltageY_thresh_either_hysteresis 1123What: /sys/.../events/in_tempY_thresh_rising_hysteresis 1124What: /sys/.../events/in_tempY_thresh_falling_hysteresis 1125What: /sys/.../events/in_tempY_thresh_either_hysteresis 1126What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis 1127What: /sys/.../events/in_illuminance0_thresh_rising_hysteresis 1128What: /sys/.../events/in_illuminance0_thresh_either_hysteresis 1129What: /sys/.../events/in_proximity0_thresh_falling_hysteresis 1130What: /sys/.../events/in_proximity0_thresh_rising_hysteresis 1131What: /sys/.../events/in_proximity0_thresh_either_hysteresis 1132KernelVersion: 3.13 1133Contact: linux-iio@vger.kernel.org 1134Description: 1135 Specifies the hysteresis of threshold that the device is comparing 1136 against for the events enabled by 1137 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis. 1138 If separate attributes exist for the two directions, but 1139 direction is not specified for this attribute, then a single 1140 hysteresis value applies to both directions. 1141 1142 For falling events the hysteresis is added to the _value attribute for 1143 this event to get the upper threshold for when the event goes back to 1144 normal, for rising events the hysteresis is subtracted from the _value 1145 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200 1146 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event 1147 will get activated once in_voltage0_raw goes above 1200 and will become 1148 deactivated again once the value falls below 1150. 1149 1150What: /sys/.../events/in_accel_x_raw_roc_rising_value 1151What: /sys/.../events/in_accel_x_raw_roc_falling_value 1152What: /sys/.../events/in_accel_y_raw_roc_rising_value 1153What: /sys/.../events/in_accel_y_raw_roc_falling_value 1154What: /sys/.../events/in_accel_z_raw_roc_rising_value 1155What: /sys/.../events/in_accel_z_raw_roc_falling_value 1156What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 1157What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 1158What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 1159What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 1160What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 1161What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 1162What: /sys/.../events/in_magn_x_raw_roc_rising_value 1163What: /sys/.../events/in_magn_x_raw_roc_falling_value 1164What: /sys/.../events/in_magn_y_raw_roc_rising_value 1165What: /sys/.../events/in_magn_y_raw_roc_falling_value 1166What: /sys/.../events/in_magn_z_raw_roc_rising_value 1167What: /sys/.../events/in_magn_z_raw_roc_falling_value 1168What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value 1169What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value 1170What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value 1171What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value 1172What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value 1173What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value 1174What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value 1175What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value 1176What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 1177What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 1178What: /sys/.../events/in_voltageY_raw_roc_rising_value 1179What: /sys/.../events/in_voltageY_raw_roc_falling_value 1180What: /sys/.../events/in_tempY_raw_roc_rising_value 1181What: /sys/.../events/in_tempY_raw_roc_falling_value 1182KernelVersion: 2.6.37 1183Contact: linux-iio@vger.kernel.org 1184Description: 1185 Specifies the value of rate of change threshold that the 1186 device is comparing against for the events enabled by 1187 <type>[Y][_name]_roc[_rising|falling]_en. 1188 1189 If separate attributes exist for the two directions, 1190 but direction is not specified for this attribute, 1191 then a single threshold value applies to both directions. 1192 The raw or input element of the name indicates whether the 1193 value is in raw device units or in processed units (as _raw 1194 and _input do on sysfs direct channel read attributes). 1195 1196What: /sys/.../events/in_accel_x_thresh_rising_period 1197What: /sys/.../events/in_accel_x_thresh_falling_period 1198What: /sys/.../events/in_accel_x_roc_rising_period 1199What: /sys/.../events/in_accel_x_roc_falling_period 1200What: /sys/.../events/in_accel_y_thresh_rising_period 1201What: /sys/.../events/in_accel_y_thresh_falling_period 1202What: /sys/.../events/in_accel_y_roc_rising_period 1203What: /sys/.../events/in_accel_y_roc_falling_period 1204What: /sys/.../events/in_accel_z_thresh_rising_period 1205What: /sys/.../events/in_accel_z_thresh_falling_period 1206What: /sys/.../events/in_accel_z_roc_rising_period 1207What: /sys/.../events/in_accel_z_roc_falling_period 1208What: /sys/.../events/in_anglvel_x_thresh_rising_period 1209What: /sys/.../events/in_anglvel_x_thresh_falling_period 1210What: /sys/.../events/in_anglvel_x_roc_rising_period 1211What: /sys/.../events/in_anglvel_x_roc_falling_period 1212What: /sys/.../events/in_anglvel_y_thresh_rising_period 1213What: /sys/.../events/in_anglvel_y_thresh_falling_period 1214What: /sys/.../events/in_anglvel_y_roc_rising_period 1215What: /sys/.../events/in_anglvel_y_roc_falling_period 1216What: /sys/.../events/in_anglvel_z_thresh_rising_period 1217What: /sys/.../events/in_anglvel_z_thresh_falling_period 1218What: /sys/.../events/in_anglvel_z_roc_rising_period 1219What: /sys/.../events/in_anglvel_z_roc_falling_period 1220What: /sys/.../events/in_magn_x_thresh_rising_period 1221What: /sys/.../events/in_magn_x_thresh_falling_period 1222What: /sys/.../events/in_magn_x_roc_rising_period 1223What: /sys/.../events/in_magn_x_roc_falling_period 1224What: /sys/.../events/in_magn_y_thresh_rising_period 1225What: /sys/.../events/in_magn_y_thresh_falling_period 1226What: /sys/.../events/in_magn_y_roc_rising_period 1227What: /sys/.../events/in_magn_y_roc_falling_period 1228What: /sys/.../events/in_magn_z_thresh_rising_period 1229What: /sys/.../events/in_magn_z_thresh_falling_period 1230What: /sys/.../events/in_magn_z_roc_rising_period 1231What: /sys/.../events/in_magn_z_roc_falling_period 1232What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period 1233What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period 1234What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period 1235What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period 1236What: /sys/.../events/in_rot_from_north_true_thresh_rising_period 1237What: /sys/.../events/in_rot_from_north_true_thresh_falling_period 1238What: /sys/.../events/in_rot_from_north_true_roc_rising_period 1239What: /sys/.../events/in_rot_from_north_true_roc_falling_period 1240What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period 1241What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period 1242What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period 1243What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period 1244What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period 1245What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period 1246What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period 1247What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period 1248What: /sys/.../events/in_voltageY_supply_thresh_rising_period 1249What: /sys/.../events/in_voltageY_supply_thresh_falling_period 1250What: /sys/.../events/in_voltageY_supply_roc_rising_period 1251What: /sys/.../events/in_voltageY_supply_roc_falling_period 1252What: /sys/.../events/in_voltageY_thresh_rising_period 1253What: /sys/.../events/in_voltageY_thresh_falling_period 1254What: /sys/.../events/in_voltageY_roc_rising_period 1255What: /sys/.../events/in_voltageY_roc_falling_period 1256What: /sys/.../events/in_tempY_thresh_rising_period 1257What: /sys/.../events/in_tempY_thresh_falling_period 1258What: /sys/.../events/in_tempY_roc_rising_period 1259What: /sys/.../events/in_tempY_roc_falling_period 1260What: /sys/.../events/in_accel_x&y&z_mag_falling_period 1261What: /sys/.../events/in_intensity0_thresh_period 1262What: /sys/.../events/in_proximity0_thresh_period 1263What: /sys/.../events/in_activity_still_thresh_rising_period 1264What: /sys/.../events/in_activity_still_thresh_falling_period 1265What: /sys/.../events/in_activity_walking_thresh_rising_period 1266What: /sys/.../events/in_activity_walking_thresh_falling_period 1267What: /sys/.../events/in_activity_jogging_thresh_rising_period 1268What: /sys/.../events/in_activity_jogging_thresh_falling_period 1269What: /sys/.../events/in_activity_running_thresh_rising_period 1270What: /sys/.../events/in_activity_running_thresh_falling_period 1271What: /sys/.../events/in_illuminance_thresh_either_period 1272KernelVersion: 2.6.37 1273Contact: linux-iio@vger.kernel.org 1274Description: 1275 Period of time (in seconds) for which the condition must be 1276 met before an event is generated. If direction is not 1277 specified then this period applies to both directions. 1278 1279What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db 1280What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db 1281What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db 1282KernelVersion: 4.2 1283Contact: linux-iio@vger.kernel.org 1284Description: 1285 If a low pass filter can be applied to the event generation 1286 this property gives its 3db frequency in Hz. 1287 A value of zero disables the filter. 1288 1289What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db 1290What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db 1291What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db 1292KernelVersion: 4.2 1293Contact: linux-iio@vger.kernel.org 1294Description: 1295 If a high pass filter can be applied to the event generation 1296 this property gives its 3db frequency in Hz. 1297 A value of zero disables the filter. 1298 1299What: /sys/.../events/in_activity_still_thresh_rising_en 1300What: /sys/.../events/in_activity_still_thresh_falling_en 1301What: /sys/.../events/in_activity_walking_thresh_rising_en 1302What: /sys/.../events/in_activity_walking_thresh_falling_en 1303What: /sys/.../events/in_activity_jogging_thresh_rising_en 1304What: /sys/.../events/in_activity_jogging_thresh_falling_en 1305What: /sys/.../events/in_activity_running_thresh_rising_en 1306What: /sys/.../events/in_activity_running_thresh_falling_en 1307KernelVersion: 3.19 1308Contact: linux-iio@vger.kernel.org 1309Description: 1310 Enables or disables activity events. Depending on direction 1311 an event is generated when sensor ENTERS or LEAVES a given state. 1312 1313What: /sys/.../events/in_activity_still_thresh_rising_value 1314What: /sys/.../events/in_activity_still_thresh_falling_value 1315What: /sys/.../events/in_activity_walking_thresh_rising_value 1316What: /sys/.../events/in_activity_walking_thresh_falling_value 1317What: /sys/.../events/in_activity_jogging_thresh_rising_value 1318What: /sys/.../events/in_activity_jogging_thresh_falling_value 1319What: /sys/.../events/in_activity_running_thresh_rising_value 1320What: /sys/.../events/in_activity_running_thresh_falling_value 1321KernelVersion: 3.19 1322Contact: linux-iio@vger.kernel.org 1323Description: 1324 Confidence value (in units as percentage) to be used 1325 for deciding when an event should be generated. E.g for 1326 running: If the confidence value reported by the sensor 1327 is greater than in_activity_running_thresh_rising_value 1328 then the sensor ENTERS running state. Conversely, if the 1329 confidence value reported by the sensor is lower than 1330 in_activity_running_thresh_falling_value then the sensor 1331 is LEAVING running state. 1332 1333What: /sys/.../iio:deviceX/events/in_accel_mag_en 1334What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 1335What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 1336What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 1337What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 1338What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 1339What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 1340What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 1341What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 1342What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 1343What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 1344What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 1345What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 1346What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 1347KernelVersion: 2.6.37 1348Contact: linux-iio@vger.kernel.org 1349Description: 1350 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 1351 magnitude of the channel is compared to the threshold, not its 1352 signed value. 1353 1354What: /sys/.../events/in_accel_raw_mag_value 1355What: /sys/.../events/in_accel_x_raw_mag_rising_value 1356What: /sys/.../events/in_accel_y_raw_mag_rising_value 1357What: /sys/.../events/in_accel_z_raw_mag_rising_value 1358KernelVersion: 2.6.37 1359Contact: linux-iio@vger.kernel.org 1360Description: 1361 The value to which the magnitude of the channel is compared. If 1362 number or direction is not specified, applies to all channels of 1363 this type. 1364 1365What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_en 1366What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en 1367What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en 1368What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en 1369What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en 1370What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en 1371KernelVersion: 5.18 1372Contact: linux-iio@vger.kernel.org 1373Description: 1374 Similar to in_accel_mag[_y][_rising|_falling]_en, but the event 1375 value is relative to a reference magnitude. The reference magnitude 1376 includes the graviational acceleration. 1377 1378What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_value 1379What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value 1380What: /sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value 1381What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value 1382What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value 1383What: /sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value 1384KernelVersion: 5.18 1385Contact: linux-iio@vger.kernel.org 1386Description: 1387 The value to which the reference magnitude of the channel is 1388 compared. If the axis is not specified, it applies to all channels 1389 of this type. 1390 1391What: /sys/.../events/in_steps_change_en 1392KernelVersion: 4.0 1393Contact: linux-iio@vger.kernel.org 1394Description: 1395 Event generated when channel passes a threshold on the absolute 1396 change in value. E.g. for steps: a step change event is 1397 generated each time the user takes N steps, where N is set using 1398 in_steps_change_value. 1399 1400What: /sys/.../events/in_steps_change_value 1401KernelVersion: 4.0 1402Contact: linux-iio@vger.kernel.org 1403Description: 1404 Specifies the value of change threshold that the 1405 device is comparing against for the events enabled by 1406 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps: 1407 if set to 3, a step change event will be generated every 3 1408 steps. 1409 1410What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 1411KernelVersion: 2.6.35 1412Contact: linux-iio@vger.kernel.org 1413Description: 1414 The name of the trigger source being used, as per string given 1415 in /sys/class/iio/triggerY/name. 1416 1417What: /sys/bus/iio/devices/iio:deviceX/bufferY/length 1418KernelVersion: 5.11 1419Contact: linux-iio@vger.kernel.org 1420Description: 1421 Number of scans contained by the buffer. 1422 1423What: /sys/bus/iio/devices/iio:deviceX/bufferY/enable 1424KernelVersion: 5.11 1425Contact: linux-iio@vger.kernel.org 1426Description: 1427 Actually start the buffer capture up. Will start trigger 1428 if first device and appropriate. 1429 1430 Note that it might be impossible to configure other attributes, 1431 (e.g.: events, scale, sampling rate) if they impact the currently 1432 active buffer capture session. 1433 1434What: /sys/bus/iio/devices/iio:deviceX/bufferY 1435KernelVersion: 5.11 1436Contact: linux-iio@vger.kernel.org 1437Description: 1438 Directory containing interfaces for elements that will be 1439 captured for a single triggered sample set in the buffer. 1440 1441 Since kernel 5.11 the scan_elements attributes are merged into 1442 the bufferY directory, to be configurable per buffer. 1443 1444What: /sys/.../iio:deviceX/bufferY/in_accel_x_en 1445What: /sys/.../iio:deviceX/bufferY/in_accel_y_en 1446What: /sys/.../iio:deviceX/bufferY/in_accel_z_en 1447What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_en 1448What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_en 1449What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_en 1450What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en 1451What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en 1452What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en 1453What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en 1454What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en 1455What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en 1456What: /sys/.../iio:deviceX/bufferY/in_magn_x_en 1457What: /sys/.../iio:deviceX/bufferY/in_magn_y_en 1458What: /sys/.../iio:deviceX/bufferY/in_magn_z_en 1459What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en 1460What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en 1461What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en 1462What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en 1463What: /sys/.../iio:deviceX/bufferY/in_timestamp_en 1464What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en 1465What: /sys/.../iio:deviceX/bufferY/in_voltageY_en 1466What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en 1467What: /sys/.../iio:deviceX/bufferY/in_incli_x_en 1468What: /sys/.../iio:deviceX/bufferY/in_incli_y_en 1469What: /sys/.../iio:deviceX/bufferY/in_pressureY_en 1470What: /sys/.../iio:deviceX/bufferY/in_pressure_en 1471What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_en 1472What: /sys/.../iio:deviceX/bufferY/in_proximity_en 1473KernelVersion: 5.11 1474Contact: linux-iio@vger.kernel.org 1475Description: 1476 Scan element control for triggered data capture. 1477 1478What: /sys/.../iio:deviceX/bufferY/in_accel_type 1479What: /sys/.../iio:deviceX/bufferY/in_deltaangl_type 1480What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_type 1481What: /sys/.../iio:deviceX/bufferY/in_anglvel_type 1482What: /sys/.../iio:deviceX/bufferY/in_magn_type 1483What: /sys/.../iio:deviceX/bufferY/in_incli_type 1484What: /sys/.../iio:deviceX/bufferY/in_voltageY_type 1485What: /sys/.../iio:deviceX/bufferY/in_voltage_type 1486What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type 1487What: /sys/.../iio:deviceX/bufferY/in_timestamp_type 1488What: /sys/.../iio:deviceX/bufferY/in_pressureY_type 1489What: /sys/.../iio:deviceX/bufferY/in_pressure_type 1490What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_type 1491What: /sys/.../iio:deviceX/bufferY/in_proximity_type 1492KernelVersion: 5.11 1493Contact: linux-iio@vger.kernel.org 1494Description: 1495 Description of the scan element data storage within the buffer 1496 and hence the form in which it is read from user-space. 1497 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 1498 be or le specifies big or little endian. s or u specifies if 1499 signed (2's complement) or unsigned. bits is the number of bits 1500 of data and storagebits is the space (after padding) that it 1501 occupies in the buffer. shift if specified, is the shift that 1502 needs to be applied prior to masking out unused bits. Some 1503 devices put their data in the middle of the transferred elements 1504 with additional information on both sides. Note that some 1505 devices will have additional information in the unused bits 1506 so to get a clean value, the bits value must be used to mask 1507 the buffer output value appropriately. The storagebits value 1508 also specifies the data alignment. So s48/64>>2 will be a 1509 signed 48 bit integer stored in a 64 bit location aligned to 1510 a 64 bit boundary. To obtain the clean value, shift right 2 1511 and apply a mask to zero the top 16 bits of the result. 1512 For other storage combinations this attribute will be extended 1513 appropriately. 1514 1515What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available 1516KernelVersion: 2.6.37 1517Contact: linux-iio@vger.kernel.org 1518Description: 1519 If the type parameter can take one of a small set of values, 1520 this attribute lists them. 1521 1522What: /sys/.../iio:deviceX/bufferY/in_voltageY_index 1523What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index 1524What: /sys/.../iio:deviceX/bufferY/in_accel_x_index 1525What: /sys/.../iio:deviceX/bufferY/in_accel_y_index 1526What: /sys/.../iio:deviceX/bufferY/in_accel_z_index 1527What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_index 1528What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_index 1529What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_index 1530What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index 1531What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index 1532What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index 1533What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index 1534What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index 1535What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index 1536What: /sys/.../iio:deviceX/bufferY/in_magn_x_index 1537What: /sys/.../iio:deviceX/bufferY/in_magn_y_index 1538What: /sys/.../iio:deviceX/bufferY/in_magn_z_index 1539What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index 1540What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index 1541What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index 1542What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index 1543What: /sys/.../iio:deviceX/bufferY/in_incli_x_index 1544What: /sys/.../iio:deviceX/bufferY/in_incli_y_index 1545What: /sys/.../iio:deviceX/bufferY/in_timestamp_index 1546What: /sys/.../iio:deviceX/bufferY/in_pressureY_index 1547What: /sys/.../iio:deviceX/bufferY/in_pressure_index 1548What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_index 1549What: /sys/.../iio:deviceX/bufferY/in_proximity_index 1550KernelVersion: 5.11 1551Contact: linux-iio@vger.kernel.org 1552Description: 1553 A single positive integer specifying the position of this 1554 scan element in the buffer. Note these are not dependent on 1555 what is enabled and may not be contiguous. Thus for user-space 1556 to establish the full layout these must be used in conjunction 1557 with all _en attributes to establish which channels are present, 1558 and the relevant _type attributes to establish the data storage 1559 format. 1560 1561What: /sys/.../iio:deviceX/in_activity_still_input 1562What: /sys/.../iio:deviceX/in_activity_walking_input 1563What: /sys/.../iio:deviceX/in_activity_jogging_input 1564What: /sys/.../iio:deviceX/in_activity_running_input 1565KernelVersion: 3.19 1566Contact: linux-iio@vger.kernel.org 1567Description: 1568 This attribute is used to read the confidence for an activity 1569 expressed in units as percentage. 1570 1571What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 1572KernelVersion: 2.6.38 1573Contact: linux-iio@vger.kernel.org 1574Description: 1575 This attribute is used to read the amount of quadrature error 1576 present in the device at a given time. 1577 1578What: /sys/.../iio:deviceX/in_accelY_power_mode 1579KernelVersion: 3.11 1580Contact: linux-iio@vger.kernel.org 1581Description: 1582 Specifies the chip power mode. 1583 low_noise: reduce noise level from ADC, 1584 low_power: enable low current consumption. 1585 For a list of available output power modes read 1586 in_accel_power_mode_available. 1587 1588What: /sys/.../iio:deviceX/in_energy_input 1589What: /sys/.../iio:deviceX/in_energy_raw 1590What: /sys/.../iio:deviceX/in_energyY_active_raw 1591What: /sys/.../iio:deviceX/in_energyY_reactive_raw 1592What: /sys/.../iio:deviceX/in_energyY_apparent_raw 1593KernelVersion: 4.0 1594Contact: linux-iio@vger.kernel.org 1595Description: 1596 This attribute is used to read the energy value reported by the 1597 device (e.g.: human activity sensors report energy burnt by the 1598 user). Units after application of scale are Joules. 1599 1600What: /sys/.../iio:deviceX/in_distance_input 1601What: /sys/.../iio:deviceX/in_distance_raw 1602KernelVersion: 4.0 1603Contact: linux-iio@vger.kernel.org 1604Description: 1605 This attribute is used to read the measured distance to an object 1606 or the distance covered by the user since the last reboot while 1607 activated. Units after application of scale are meters. 1608 1609What: /sys/bus/iio/devices/iio:deviceX/store_eeprom 1610KernelVersion: 3.4.0 1611Contact: linux-iio@vger.kernel.org 1612Description: 1613 Writing '1' stores the current device configuration into 1614 on-chip EEPROM. After power-up or chip reset the device will 1615 automatically load the saved configuration. 1616 1617What: /sys/.../iio:deviceX/in_proximity_raw 1618What: /sys/.../iio:deviceX/in_proximity_input 1619What: /sys/.../iio:deviceX/in_proximityY_raw 1620KernelVersion: 3.4 1621Contact: linux-iio@vger.kernel.org 1622Description: 1623 Proximity measurement indicating that some 1624 object is near the sensor, usually by observing 1625 reflectivity of infrared or ultrasound emitted. 1626 1627 Often these sensors are unit less and as such conversion 1628 to SI units is not possible. Higher proximity measurements 1629 indicate closer objects, and vice versa. Units after 1630 application of scale and offset are meters. 1631 1632What: /sys/.../iio:deviceX/in_illuminance_input 1633What: /sys/.../iio:deviceX/in_illuminance_raw 1634What: /sys/.../iio:deviceX/in_illuminanceY_input 1635What: /sys/.../iio:deviceX/in_illuminanceY_raw 1636What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw 1637What: /sys/.../iio:deviceX/in_illuminance_ir_raw 1638What: /sys/.../iio:deviceX/in_illuminance_clear_raw 1639KernelVersion: 3.4 1640Contact: linux-iio@vger.kernel.org 1641Description: 1642 Illuminance measurement, units after application of scale 1643 and offset are lux. 1644 1645What: /sys/.../iio:deviceX/in_intensityY_raw 1646What: /sys/.../iio:deviceX/in_intensityY_ir_raw 1647What: /sys/.../iio:deviceX/in_intensityY_both_raw 1648What: /sys/.../iio:deviceX/in_intensityY_uv_raw 1649What: /sys/.../iio:deviceX/in_intensityY_uva_raw 1650What: /sys/.../iio:deviceX/in_intensityY_uvb_raw 1651What: /sys/.../iio:deviceX/in_intensityY_duv_raw 1652What: /sys/.../iio:deviceX/in_intensity_red_raw 1653What: /sys/.../iio:deviceX/in_intensity_green_raw 1654What: /sys/.../iio:deviceX/in_intensity_blue_raw 1655What: /sys/.../iio:deviceX/in_intensity_clear_raw 1656KernelVersion: 3.4 1657Contact: linux-iio@vger.kernel.org 1658Description: 1659 Unit-less light intensity. Modifiers both and ir indicate 1660 that measurements contain visible and infrared light 1661 components or just infrared light, respectively. Modifier 1662 uv indicates that measurements contain ultraviolet light 1663 components. Modifiers uva, uvb and duv indicate that 1664 measurements contain A, B or deep (C) ultraviolet light 1665 components respectively. 1666 1667What: /sys/.../iio:deviceX/in_uvindex_input 1668KernelVersion: 4.6 1669Contact: linux-iio@vger.kernel.org 1670Description: 1671 UV light intensity index measuring the human skin's response to 1672 different wavelength of sunlight weighted according to the 1673 standardised CIE Erythemal Action Spectrum. UV index values range 1674 from 0 (low) to >=11 (extreme). 1675 1676What: /sys/.../iio:deviceX/in_intensity_integration_time 1677What: /sys/.../iio:deviceX/in_intensity_red_integration_time 1678What: /sys/.../iio:deviceX/in_intensity_green_integration_time 1679What: /sys/.../iio:deviceX/in_intensity_blue_integration_time 1680What: /sys/.../iio:deviceX/in_intensity_clear_integration_time 1681What: /sys/.../iio:deviceX/in_illuminance_integration_time 1682KernelVersion: 3.12 1683Contact: linux-iio@vger.kernel.org 1684Description: 1685 This attribute is used to get/set the integration time in 1686 seconds. If shared across all channels of a given type, 1687 <type>_integration_time is used. 1688 1689What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time 1690KernelVersion: 4.0 1691Contact: linux-iio@vger.kernel.org 1692Description: 1693 Number of seconds in which to compute speed. 1694 1695What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw 1696KernelVersion: 3.15 1697Contact: linux-iio@vger.kernel.org 1698Description: 1699 Raw value of quaternion components using a format 1700 x y z w. Here x, y, and z component represents the axis about 1701 which a rotation will occur and w component represents the 1702 amount of rotation. 1703 1704What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw 1705What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw 1706What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw 1707What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw 1708KernelVersion: 3.15 1709Contact: linux-iio@vger.kernel.org 1710Description: 1711 Raw value of rotation from true/magnetic north measured with 1712 or without compensation from tilt sensors. 1713 1714What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw 1715What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw 1716KernelVersion: 3.17 1717Contact: linux-iio@vger.kernel.org 1718Description: 1719 Raw current measurement from channel Y. Units are in milliamps 1720 after application of scale and offset. If no offset or scale is 1721 present, output should be considered as processed with the 1722 unit in milliamps. In special cases where the channel does not 1723 correspond to externally available input one of the named 1724 versions may be used. 1725 1726 Channels with 'i' and 'q' modifiers always exist in pairs and both 1727 channels refer to the same signal. The 'i' channel contains the in-phase 1728 component of the signal while the 'q' channel contains the quadrature 1729 component. 1730 1731What: /sys/bus/iio/devices/iio:deviceX/in_altcurrentY_rms_raw 1732KernelVersion: 6.18 1733Contact: linux-iio@vger.kernel.org 1734Description: 1735 Raw (unscaled no bias removal etc.) Root Mean Square (RMS) current 1736 measurement from channel Y. Units after application of scale and 1737 offset are milliamps. 1738 1739What: /sys/.../iio:deviceX/in_energy_en 1740What: /sys/.../iio:deviceX/in_distance_en 1741What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en 1742What: /sys/.../iio:deviceX/in_steps_en 1743KernelVersion: 3.19 1744Contact: linux-iio@vger.kernel.org 1745Description: 1746 Activates a device feature that runs in firmware/hardware. 1747 E.g. for steps: the pedometer saves power while not used; 1748 when activated, it will count the steps taken by the user in 1749 firmware and export them through in_steps_input. 1750 1751What: /sys/.../iio:deviceX/in_steps_input 1752KernelVersion: 3.19 1753Contact: linux-iio@vger.kernel.org 1754Description: 1755 This attribute is used to read the number of steps taken by the user 1756 since the last reboot while activated. 1757 1758What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input 1759What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw 1760KernelVersion: 3.19 1761Contact: linux-iio@vger.kernel.org 1762Description: 1763 This attribute is used to read the current speed value of the 1764 user (which is the norm or magnitude of the velocity vector). 1765 Units after application of scale are m/s. 1766 1767What: /sys/.../iio:deviceX/in_steps_debounce_count 1768KernelVersion: 4.0 1769Contact: linux-iio@vger.kernel.org 1770Description: 1771 Specifies the number of steps that must occur within 1772 in_steps_filter_debounce_time for the pedometer to decide the 1773 consumer is making steps. 1774 1775What: /sys/.../iio:deviceX/in_steps_debounce_time 1776KernelVersion: 4.0 1777Contact: linux-iio@vger.kernel.org 1778Description: 1779 Specifies number of seconds in which we compute the steps 1780 that occur in order to decide if the consumer is making steps. 1781 1782What: /sys/bus/iio/devices/iio:deviceX/bufferY/watermark 1783KernelVersion: 5.11 1784Contact: linux-iio@vger.kernel.org 1785Description: 1786 A single positive integer specifying the maximum number of scan 1787 elements to wait for. 1788 1789 Poll will block until the watermark is reached. 1790 1791 Blocking read will wait until the minimum between the requested 1792 read amount or the low water mark is available. 1793 1794 Non-blocking read will retrieve the available samples from the 1795 buffer even if there are less samples then watermark level. This 1796 allows the application to block on poll with a timeout and read 1797 the available samples after the timeout expires and thus have a 1798 maximum delay guarantee. 1799 1800What: /sys/bus/iio/devices/iio:deviceX/bufferY/data_available 1801KernelVersion: 5.11 1802Contact: linux-iio@vger.kernel.org 1803Description: 1804 A read-only value indicating the bytes of data available in the 1805 buffer. In the case of an output buffer, this indicates the 1806 amount of empty space available to write data to. In the case of 1807 an input buffer, this indicates the amount of data available for 1808 reading. 1809 1810What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled 1811KernelVersion: 4.2 1812Contact: linux-iio@vger.kernel.org 1813Description: 1814 A read-only boolean value that indicates if the hardware fifo is 1815 currently enabled or disabled. If the device does not have a 1816 hardware fifo this entry is not present. 1817 The hardware fifo is enabled when the buffer is enabled if the 1818 current hardware fifo watermark level is set and other current 1819 device settings allows it (e.g. if a trigger is set that samples 1820 data differently that the hardware fifo does then hardware fifo 1821 will not enabled). 1822 1823 If the hardware fifo is enabled and the level of the hardware 1824 fifo reaches the hardware fifo watermark level the device will 1825 flush its hardware fifo to the device buffer. Doing a non 1826 blocking read on the device when no samples are present in the 1827 device buffer will also force a flush. 1828 1829 When the hardware fifo is enabled there is no need to use a 1830 trigger to use buffer mode since the watermark settings 1831 guarantees that the hardware fifo is flushed to the device 1832 buffer. 1833 1834What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout 1835KernelVersion: 4.12 1836Contact: linux-iio@vger.kernel.org 1837Description: 1838 A read/write property to provide capability to delay reporting of 1839 samples till a timeout is reached. This allows host processors to 1840 sleep, while the sensor is storing samples in its internal fifo. 1841 The maximum timeout in seconds can be specified by setting 1842 hwfifo_timeout.The current delay can be read by reading 1843 hwfifo_timeout. A value of 0 means that there is no timeout. 1844 1845What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark 1846KernelVersion: 4.2 1847Contact: linux-iio@vger.kernel.org 1848Description: 1849 Read-only entry that contains a single integer specifying the 1850 current watermark level for the hardware fifo. If the device 1851 does not have a hardware fifo this entry is not present. 1852 The watermark level for the hardware fifo is set by the driver 1853 based on the value set by the user in buffer/watermark but 1854 taking into account hardware limitations (e.g. most hardware 1855 buffers are limited to 32-64 samples, some hardware buffers 1856 watermarks are fixed or have minimum levels). A value of 0 1857 means that the hardware watermark is unset. 1858 1859What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min 1860KernelVersion: 4.2 1861Contact: linux-iio@vger.kernel.org 1862Description: 1863 A single positive integer specifying the minimum watermark level 1864 for the hardware fifo of this device. If the device does not 1865 have a hardware fifo this entry is not present. 1866 1867 If the user sets buffer/watermark to a value less than this one, 1868 then the hardware watermark will remain unset. 1869 1870What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max 1871KernelVersion: 4.2 1872Contact: linux-iio@vger.kernel.org 1873Description: 1874 A single positive integer specifying the maximum watermark level 1875 for the hardware fifo of this device. If the device does not 1876 have a hardware fifo this entry is not present. 1877 1878 If the user sets buffer/watermark to a value greater than this 1879 one, then the hardware watermark will be capped at this value. 1880 1881What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available 1882KernelVersion: 4.2 1883Contact: linux-iio@vger.kernel.org 1884Description: 1885 A list of positive integers specifying the available watermark 1886 levels for the hardware fifo. This entry is optional and if it 1887 is not present it means that all the values between 1888 hwfifo_watermark_min and hwfifo_watermark_max are supported. 1889 1890 If the user sets buffer/watermark to a value greater than 1891 hwfifo_watermak_min but not equal to any of the values in this 1892 list, the driver will chose an appropriate value for the 1893 hardware fifo watermark level. 1894 1895What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity 1896What: /sys/bus/iio/devices/iio:deviceX/in_tempY_calibemissivity 1897What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity 1898What: /sys/bus/iio/devices/iio:deviceX/in_tempY_object_calibemissivity 1899KernelVersion: 4.1 1900Contact: linux-iio@vger.kernel.org 1901Description: 1902 The emissivity ratio of the surface in the field of view of the 1903 contactless temperature sensor. Emissivity varies from 0 to 1, 1904 with 1 being the emissivity of a black body. 1905 1906What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio 1907What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio 1908What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio 1909KernelVersion: 4.2 1910Contact: linux-iio@vger.kernel.org 1911Description: 1912 Hardware applied number of measurements for acquiring one 1913 data point. The HW will do <type>[_name]_oversampling_ratio 1914 measurements and return the average value as output data. Each 1915 value resulted from <type>[_name]_oversampling_ratio measurements 1916 is considered as one sample for <type>[_name]_sampling_frequency. 1917 1918What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw 1919What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_raw 1920What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw 1921What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_co2_raw 1922What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw 1923What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_ethanol_raw 1924What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw 1925What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_h2_raw 1926What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw 1927What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_o2_raw 1928What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw 1929What: /sys/bus/iio/devices/iio:deviceX/in_concentrationY_voc_raw 1930KernelVersion: 4.3 1931Contact: linux-iio@vger.kernel.org 1932Description: 1933 Raw (unscaled no offset etc.) reading of a substance. Units 1934 after application of scale and offset are percents. 1935 1936What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw 1937What: /sys/bus/iio/devices/iio:deviceX/in_resistanceY_raw 1938What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw 1939What: /sys/bus/iio/devices/iio:deviceX/out_resistanceY_raw 1940KernelVersion: 4.3 1941Contact: linux-iio@vger.kernel.org 1942Description: 1943 Raw (unscaled no offset etc.) resistance reading. 1944 Units after application of scale and offset are ohms. 1945 1946What: /sys/bus/iio/devices/iio:deviceX/heater_enable 1947KernelVersion: 4.1.0 1948Contact: linux-iio@vger.kernel.org 1949Description: 1950 '1' (enable) or '0' (disable) specifying the enable 1951 of heater function. Same reading values apply. 1952 1953 This ABI is especially applicable for humidity sensors 1954 to heatup the device and get rid of any condensation 1955 in some humidity environment 1956 1957What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw 1958KernelVersion: 4.5 1959Contact: linux-iio@vger.kernel.org 1960Description: 1961 Raw (unscaled no offset etc.) pH reading of a substance as a negative 1962 base-10 logarithm of hydrodium ions in a litre of water. 1963 1964What: /sys/bus/iio/devices/iio:deviceX/mount_matrix 1965What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix 1966What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix 1967What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix 1968What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix 1969KernelVersion: 4.6 1970Contact: linux-iio@vger.kernel.org 1971Description: 1972 Mounting matrix for IIO sensors. This is a rotation matrix which 1973 informs userspace about sensor chip's placement relative to the 1974 main hardware it is mounted on. 1975 1976 Main hardware placement is defined according to the local 1977 reference frame related to the physical quantity the sensor 1978 measures. 1979 1980 Given that the rotation matrix is defined in a board specific 1981 way (platform data and / or device-tree), the main hardware 1982 reference frame definition is left to the implementor's choice 1983 (see below for a magnetometer example). 1984 1985 Applications should apply this rotation matrix to samples so 1986 that when main hardware reference frame is aligned onto local 1987 reference frame, then sensor chip reference frame is also 1988 perfectly aligned with it. 1989 1990 Matrix is a 3x3 unitary matrix and typically looks like 1991 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix 1992 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware 1993 are perfectly aligned with each other. 1994 1995 For example, a mounting matrix for a magnetometer sensor informs 1996 userspace about sensor chip's ORIENTATION relative to the main 1997 hardware. 1998 1999 More specifically, main hardware orientation is defined with 2000 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where : 2001 2002 * Y is in the ground plane and positive towards magnetic North ; 2003 * X is in the ground plane, perpendicular to the North axis and 2004 positive towards the East ; 2005 * Z is perpendicular to the ground plane and positive upwards. 2006 2007 An implementor might consider that for a hand-held device, a 2008 'natural' orientation would be 'front facing camera at the top'. 2009 The main hardware reference frame could then be described as : 2010 2011 * Y is in the plane of the screen and is positive towards the 2012 top of the screen ; 2013 * X is in the plane of the screen, perpendicular to Y axis, and 2014 positive towards the right hand side of the screen ; 2015 * Z is perpendicular to the screen plane and positive out of the 2016 screen. 2017 2018 Another example for a quadrotor UAV might be : 2019 2020 * Y is in the plane of the propellers and positive towards the 2021 front-view camera; 2022 * X is in the plane of the propellers, perpendicular to Y axis, 2023 and positive towards the starboard side of the UAV ; 2024 * Z is perpendicular to propellers plane and positive upwards. 2025 2026What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw 2027KernelVersion: 4.8 2028Contact: linux-iio@vger.kernel.org 2029Description: 2030 Raw (unscaled no offset etc.) electric conductivity reading. 2031 Units after application of scale and offset are siemens per 2032 meter. 2033 2034What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw 2035KernelVersion: 4.10 2036Contact: linux-iio@vger.kernel.org 2037Description: 2038 This interface is deprecated; please use the Counter subsystem. 2039 2040 Raw counter device counts from channel Y. For quadrature 2041 counters, multiplication by an available [Y]_scale results in 2042 the counts of a single quadrature signal phase from channel Y. 2043 2044What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw 2045KernelVersion: 4.10 2046Contact: linux-iio@vger.kernel.org 2047Description: 2048 This interface is deprecated; please use the Counter subsystem. 2049 2050 Raw counter device index value from channel Y. This attribute 2051 provides an absolute positional reference (e.g. a pulse once per 2052 revolution) which may be used to home positional systems as 2053 required. 2054 2055What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available 2056KernelVersion: 4.12 2057Contact: linux-iio@vger.kernel.org 2058Description: 2059 This interface is deprecated; please use the Counter subsystem. 2060 2061 A list of possible counting directions which are: 2062 2063 - "up" : counter device is increasing. 2064 - "down": counter device is decreasing. 2065 2066What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction 2067KernelVersion: 4.12 2068Contact: linux-iio@vger.kernel.org 2069Description: 2070 This interface is deprecated; please use the Counter subsystem. 2071 2072 Raw counter device counters direction for channel Y. 2073 2074What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_label 2075What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_label 2076KernelVersion: 5.8 2077Contact: linux-iio@vger.kernel.org 2078Description: 2079 Optional symbolic label to a device channel. 2080 If a label is defined for this channel add that to the channel 2081 specific attributes. This is useful for userspace to be able to 2082 better identify an individual channel. 2083 2084What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw 2085KernelVersion: 4.18 2086Contact: linux-iio@vger.kernel.org 2087Description: 2088 Raw (unscaled) phase difference reading from channel Y. 2089 Units after application of scale and offset are radians. 2090 2091What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input 2092What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input 2093What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input 2094What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input 2095What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input 2096What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input 2097What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input 2098What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input 2099KernelVersion: 4.22 2100Contact: linux-iio@vger.kernel.org 2101Description: 2102 Mass concentration reading of particulate matter in ug / m3. 2103 pmX consists of particles with aerodynamic diameter less or 2104 equal to X micrometers. 2105 2106What: /sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available 2107Date: November 2019 2108KernelVersion: 5.4 2109Contact: linux-iio@vger.kernel.org 2110Description: 2111 List of valid periods (in seconds) for which the light intensity 2112 must be above the threshold level before interrupt is asserted. 2113 2114What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency 2115KernelVersion: 5.5 2116Contact: linux-iio@vger.kernel.org 2117Description: 2118 Center frequency in Hz for a notch filter. Used i.e. for line 2119 noise suppression. 2120 2121What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type 2122KernelVersion: 5.5 2123Contact: linux-iio@vger.kernel.org 2124Description: 2125 One of the following thermocouple types: B, E, J, K, N, R, S, T. 2126 2127What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient 2128What: /sys/bus/iio/devices/iio:deviceX/in_tempY_object_calibambient 2129KernelVersion: 5.10 2130Contact: linux-iio@vger.kernel.org 2131Description: 2132 Calibrated ambient temperature for object temperature 2133 calculation in milli degrees Celsius. 2134 2135What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw 2136What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw 2137What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw 2138KernelVersion: 5.10 2139Contact: linux-iio@vger.kernel.org 2140Description: 2141 Unscaled light intensity according to CIE 1931/DIN 5033 color space. 2142 Units after application of scale are nano nanowatts per square meter. 2143 2144What: /sys/bus/iio/devices/iio:deviceX/in_anglY_label 2145KernelVersion: 5.12 2146Contact: linux-iio@vger.kernel.org 2147Description: 2148 Optional symbolic label for channel Y. 2149 For Intel hid hinge sensor, the label values are: 2150 hinge, keyboard, screen. It means the three channels 2151 each correspond respectively to hinge angle, keyboard angle, 2152 and screen angle. 2153 2154What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative 2155What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative 2156KernelVersion: 5.12 2157Contact: linux-iio@vger.kernel.org 2158Description: 2159 Specify the percent for light sensor relative to the channel 2160 absolute value that a data field should change before an event 2161 is generated. Units are a percentage of the prior reading. 2162 2163What: /sys/bus/iio/devices/iio:deviceX/calibration_auto_enable 2164Date: June 2020 2165KernelVersion: 5.8 2166Contact: linux-iio@vger.kernel.org 2167Description: 2168 Some sensors have the ability to apply auto calibration at 2169 runtime. For example, it may be necessary to compensate for 2170 contaminant build-up in a measurement chamber or optical 2171 element deterioration that would otherwise lead to sensor drift. 2172 2173 Writing 1 or 0 to this attribute will respectively activate or 2174 deactivate this auto calibration function. 2175 2176 Upon reading, the current status is returned. 2177 2178What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value 2179Date: June 2020 2180KernelVersion: 5.8 2181Contact: linux-iio@vger.kernel.org 2182Description: 2183 Some sensors have the ability to apply a manual calibration using 2184 a known measurement value, perhaps obtained from an external 2185 reference device. 2186 2187 Writing a value to this function will force such a calibration 2188 change. For the scd30 the value should be from the range 2189 [400 1 2000]. 2190 2191 Note for the scd30 that a valid value may only be obtained once 2192 it is has been written. Until then any read back of this value 2193 should be ignored. As for the scd4x an error will be returned 2194 immediately if the manual calibration has failed. 2195 2196What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available 2197KernelVersion: 5.15 2198Contact: linux-iio@vger.kernel.org 2199Description: 2200 Available range for the forced calibration value, expressed as: 2201 2202 - a range specified as "[min step max]" 2203 2204What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sampling_frequency 2205What: /sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency 2206What: /sys/bus/iio/devices/iio:deviceX/in_currentY_sampling_frequency 2207KernelVersion: 5.20 2208Contact: linux-iio@vger.kernel.org 2209Description: 2210 Some devices have separate controls of sampling frequency for 2211 individual channels. If multiple channels are enabled in a scan, 2212 then the sampling_frequency of the scan may be computed from the 2213 per channel sampling frequencies. 2214 2215What: /sys/.../events/in_accel_gesture_singletap_en 2216What: /sys/.../events/in_accel_gesture_doubletap_en 2217KernelVersion: 6.1 2218Contact: linux-iio@vger.kernel.org 2219Description: 2220 Device generates an event on a single or double tap. 2221 2222What: /sys/.../events/in_accel_gesture_singletap_value 2223What: /sys/.../events/in_accel_gesture_doubletap_value 2224KernelVersion: 6.1 2225Contact: linux-iio@vger.kernel.org 2226Description: 2227 Specifies the threshold value that the device is comparing 2228 against to generate the tap gesture event. The lower 2229 threshold value increases the sensitivity of tap detection. 2230 Units and the exact meaning of value are device-specific. 2231 2232What: /sys/.../events/in_accel_gesture_tap_value_available 2233KernelVersion: 6.1 2234Contact: linux-iio@vger.kernel.org 2235Description: 2236 Lists all available threshold values which can be used to 2237 modify the sensitivity of the tap detection. 2238 2239What: /sys/.../events/in_accel_gesture_singletap_reset_timeout 2240What: /sys/.../events/in_accel_gesture_doubletap_reset_timeout 2241KernelVersion: 6.1 2242Contact: linux-iio@vger.kernel.org 2243Description: 2244 Specifies the timeout value in seconds for the tap detector 2245 to not to look for another tap event after the event as 2246 occurred. Basically the minimum quiet time between the two 2247 single-tap's or two double-tap's. 2248 2249What: /sys/.../events/in_accel_gesture_tap_reset_timeout_available 2250KernelVersion: 6.1 2251Contact: linux-iio@vger.kernel.org 2252Description: 2253 Lists all available tap reset timeout values. Units in seconds. 2254 2255What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay 2256KernelVersion: 6.1 2257Contact: linux-iio@vger.kernel.org 2258Description: 2259 Specifies the minimum quiet time in seconds between the two 2260 taps of a double tap. 2261 2262What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available 2263KernelVersion: 6.1 2264Contact: linux-iio@vger.kernel.org 2265Description: 2266 Lists all available delay values between two taps in the double 2267 tap. Units in seconds. 2268 2269What: /sys/.../events/in_accel_gesture_tap_maxtomin_time 2270KernelVersion: 6.1 2271Contact: linux-iio@vger.kernel.org 2272Description: 2273 Specifies the maximum time difference allowed between upper 2274 and lower peak of tap to consider it as the valid tap event. 2275 Units in seconds. 2276 2277What: /sys/.../events/in_accel_gesture_tap_maxtomin_time_available 2278KernelVersion: 6.1 2279Contact: linux-iio@vger.kernel.org 2280Description: 2281 Lists all available time values between upper peak to lower 2282 peak. Units in seconds. 2283 2284What: /sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw 2285What: /sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw 2286What: /sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw 2287KernelVersion: 6.1 2288Contact: linux-iio@vger.kernel.org 2289Description: 2290 Raw (unscaled) euler angles readings. Units after 2291 application of scale are deg. 2292 2293What: /sys/bus/iio/devices/iio:deviceX/serialnumber 2294KernelVersion: 6.1 2295Contact: linux-iio@vger.kernel.org 2296Description: 2297 An example format is 16-bytes, 2-digits-per-byte, HEX-string 2298 representing the sensor unique ID number. 2299 2300What: /sys/bus/iio/devices/iio:deviceX/filter_type_available 2301What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_filter_type_available 2302KernelVersion: 6.1 2303Contact: linux-iio@vger.kernel.org 2304Description: 2305 Reading returns a list with the possible filter modes. Options 2306 for the attribute: 2307 2308 * "none" - Filter is disabled/bypassed. 2309 * "sinc1" - The digital sinc1 filter. Fast 1st 2310 conversion time. Poor noise performance. 2311 * "sinc3" - The digital sinc3 filter. Moderate 1st 2312 conversion time. Good noise performance. 2313 * "sinc3+pf1" - Sinc3 + device specific Post Filter 1. 2314 * "sinc3+pf2" - Sinc3 + device specific Post Filter 2. 2315 * "sinc3+pf3" - Sinc3 + device specific Post Filter 3. 2316 * "sinc3+pf4" - Sinc3 + device specific Post Filter 4. 2317 * "sinc3+rej60" - Sinc3 + 60Hz rejection. 2318 * "sinc3+sinc1" - Sinc3 + averaging by 8. Low 1st conversion 2319 time. 2320 * "sinc4" - Sinc 4. Excellent noise performance. Long 2321 1st conversion time. 2322 * "sinc4+lp" - Sinc4 + Low Pass Filter. 2323 * "sinc4+sinc1" - Sinc4 + averaging by 8. Low 1st conversion 2324 time. 2325 * "sinc4+rej60" - Sinc4 + 60Hz rejection. 2326 * "sinc5" - The digital sinc5 filter. Excellent noise 2327 performance 2328 * "sinc5+avg" - Sinc5 + averaging by 4. 2329 * "sinc5+pf1" - Sinc5 + device specific Post Filter 1. 2330 * "sinc5+sinc1" - Sinc5 + Sinc1. 2331 * "sinc5+sinc1+pf1" - Sinc5 + Sinc1 + device specific Post Filter 1. 2332 * "sinc5+sinc1+pf2" - Sinc5 + Sinc1 + device specific Post Filter 2. 2333 * "sinc5+sinc1+pf3" - Sinc5 + Sinc1 + device specific Post Filter 3. 2334 * "sinc5+sinc1+pf4" - Sinc5 + Sinc1 + device specific Post Filter 4. 2335 * "wideband" - filter with wideband low ripple passband 2336 and sharp transition band. 2337 2338What: /sys/bus/iio/devices/iio:deviceX/filter_type 2339What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_filter_type 2340KernelVersion: 6.1 2341Contact: linux-iio@vger.kernel.org 2342Description: 2343 Specifies which filter type apply to the channel. The possible 2344 values are given by the filter_type_available attribute. 2345 2346What: /sys/.../events/in_proximity_thresh_either_runningperiod 2347KernelVersion: 6.6 2348Contact: linux-iio@vger.kernel.org 2349Description: 2350 A running period of time (in seconds) for which 2351 in_proximity_thresh_either_runningcount amount of conditions 2352 must occur before an event is generated. If direction is not 2353 specified then this period applies to both directions. 2354 2355What: /sys/.../events/in_proximity_thresh_either_runningcount 2356KernelVersion: 6.6 2357Contact: linux-iio@vger.kernel.org 2358Description: 2359 Number of conditions that must occur, during a running 2360 period, before an event is generated. 2361 2362What: /sys/bus/iio/devices/iio:deviceX/in_colortemp_raw 2363KernelVersion: 6.7 2364Contact: linux-iio@vger.kernel.org 2365Description: 2366 Represents light color temperature, which measures light color 2367 temperature in Kelvin. 2368 2369What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw 2370What: /sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw 2371KernelVersion: 6.7 2372Contact: linux-iio@vger.kernel.org 2373Description: 2374 The x and y light color coordinate on the CIE 1931 chromaticity 2375 diagram. 2376 2377What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label 2378What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label 2379What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label 2380What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label 2381What: /sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label 2382What: /sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label 2383What: /sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label 2384KernelVersion: 6.7 2385Contact: linux-iio@vger.kernel.org 2386Description: 2387 Optional symbolic label to a device channel event. 2388 If a label is defined for this event add that to the event 2389 specific attributes. This is useful for userspace to be able to 2390 better identify an individual event. 2391 2392What: /sys/.../events/in_accel_gesture_tap_wait_timeout 2393KernelVersion: 6.7 2394Contact: linux-iio@vger.kernel.org 2395Description: 2396 Enable tap gesture confirmation with timeout. 2397 2398What: /sys/.../events/in_accel_gesture_tap_wait_dur 2399KernelVersion: 6.7 2400Contact: linux-iio@vger.kernel.org 2401Description: 2402 Timeout value in seconds for tap gesture confirmation. 2403 2404What: /sys/.../events/in_accel_gesture_tap_wait_dur_available 2405KernelVersion: 6.7 2406Contact: linux-iio@vger.kernel.org 2407Description: 2408 List of available timeout value for tap gesture confirmation. 2409 2410What: /sys/.../iio:deviceX/in_shunt_resistor 2411What: /sys/.../iio:deviceX/in_current_shunt_resistor 2412What: /sys/.../iio:deviceX/in_power_shunt_resistor 2413KernelVersion: 6.10 2414Contact: linux-iio@vger.kernel.org 2415Description: 2416 The value of current sense resistor in Ohms. 2417 2418What: /sys/.../iio:deviceX/in_attention_input 2419KernelVersion: 6.13 2420Contact: linux-iio@vger.kernel.org 2421Description: 2422 Value representing the user's attention to the system expressed 2423 in units as percentage. This usually means if the user is 2424 looking at the screen or not. 2425