1What: /sys/bus/iio/devices/iio:deviceX 2KernelVersion: 2.6.35 3Contact: linux-iio@vger.kernel.org 4Description: 5 Hardware chip or device accessed by one communication port. 6 Corresponds to a grouping of sensor channels. X is the IIO 7 index of the device. 8 9What: /sys/bus/iio/devices/triggerX 10KernelVersion: 2.6.35 11Contact: linux-iio@vger.kernel.org 12Description: 13 An event driven driver of data capture to an in kernel buffer. 14 May be provided by a device driver that also has an IIO device 15 based on hardware generated events (e.g. data ready) or 16 provided by a separate driver for other hardware (e.g. 17 periodic timer, GPIO or high resolution timer). 18 Contains trigger type specific elements. These do not 19 generalize well and hence are not documented in this file. 20 X is the IIO index of the trigger. 21 22What: /sys/bus/iio/devices/iio:deviceX/buffer 23KernelVersion: 2.6.35 24Contact: linux-iio@vger.kernel.org 25Description: 26 Directory of attributes relating to the buffer for the device. 27 28What: /sys/bus/iio/devices/iio:deviceX/name 29KernelVersion: 2.6.35 30Contact: linux-iio@vger.kernel.org 31Description: 32 Description of the physical chip / device for device X. 33 Typically a part number. 34 35What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock 36KernelVersion: 4.5 37Contact: linux-iio@vger.kernel.org 38Description: 39 String identifying current posix clock used to timestamp 40 buffered samples and events for device X. 41 42What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency 43What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency 44What: /sys/bus/iio/devices/triggerX/sampling_frequency 45KernelVersion: 2.6.35 46Contact: linux-iio@vger.kernel.org 47Description: 48 Some devices have internal clocks. This parameter sets the 49 resulting sampling frequency. In many devices this 50 parameter has an effect on input filters etc. rather than 51 simply controlling when the input is sampled. As this 52 effects data ready triggers, hardware buffers and the sysfs 53 direct access interfaces, it may be found in any of the 54 relevant directories. If it effects all of the above 55 then it is to be found in the base device directory. 56 57What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 58What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available 59What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 60What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 61KernelVersion: 2.6.35 62Contact: linux-iio@vger.kernel.org 63Description: 64 When the internal sampling clock can only take a small 65 discrete set of values, this file lists those available. 66 67What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 68KernelVersion: 2.6.38 69Contact: linux-iio@vger.kernel.org 70Description: 71 Hardware dependent ADC oversampling. Controls the sampling ratio 72 of the digital filter if available. 73 74What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 75KernelVersion: 2.6.38 76Contact: linux-iio@vger.kernel.org 77Description: 78 Hardware dependent values supported by the oversampling filter. 79 80What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 81What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 82What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw 83What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw 84KernelVersion: 2.6.35 85Contact: linux-iio@vger.kernel.org 86Description: 87 Raw (unscaled no bias removal etc.) voltage measurement from 88 channel Y. In special cases where the channel does not 89 correspond to externally available input one of the named 90 versions may be used. The number must always be specified and 91 unique to allow association with event codes. Units after 92 application of scale and offset are millivolts. 93 94 Channels with 'i' and 'q' modifiers always exist in pairs and both 95 channels refer to the same signal. The 'i' channel contains the in-phase 96 component of the signal while the 'q' channel contains the quadrature 97 component. 98 99What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 100KernelVersion: 2.6.35 101Contact: linux-iio@vger.kernel.org 102Description: 103 Raw (unscaled) differential voltage measurement equivalent to 104 channel Y - channel Z where these channel numbers apply to the 105 physically equivalent inputs when non differential readings are 106 separately available. In differential only parts, then all that 107 is required is a consistent labeling. Units after application 108 of scale and offset are millivolts. 109 110What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw 111What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw 112KernelVersion: 3.17 113Contact: linux-iio@vger.kernel.org 114Description: 115 Raw (unscaled no bias removal etc.) current measurement from 116 channel Y. In special cases where the channel does not 117 correspond to externally available input one of the named 118 versions may be used. The number must always be specified and 119 unique to allow association with event codes. Units after 120 application of scale and offset are milliamps. 121 122What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw 123KernelVersion: 4.5 124Contact: linux-iio@vger.kernel.org 125Description: 126 Raw (unscaled no bias removal etc.) power measurement from 127 channel Y. The number must always be specified and 128 unique to allow association with event codes. Units after 129 application of scale and offset are milliwatts. 130 131What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 132KernelVersion: 3.2 133Contact: linux-iio@vger.kernel.org 134Description: 135 Raw capacitance measurement from channel Y. Units after 136 application of scale and offset are nanofarads. 137 138What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw 139KernelVersion: 3.2 140Contact: linux-iio@vger.kernel.org 141Description: 142 Raw differential capacitance measurement equivalent to 143 channel Y - channel Z where these channel numbers apply to the 144 physically equivalent inputs when non differential readings are 145 separately available. In differential only parts, then all that 146 is required is a consistent labeling. Units after application 147 of scale and offset are nanofarads. 148 149What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 150What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw 151What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 152What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 153What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw 154What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw 155KernelVersion: 2.6.35 156Contact: linux-iio@vger.kernel.org 157Description: 158 Raw (unscaled no bias removal etc.) temperature measurement. 159 If an axis is specified it generally means that the temperature 160 sensor is associated with one part of a compound device (e.g. 161 a gyroscope axis). The ambient and object modifiers distinguish 162 between ambient (reference) and distant temperature for contact- 163 less measurements. Units after application of scale and offset 164 are milli degrees Celsius. 165 166What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input 167KernelVersion: 2.6.38 168Contact: linux-iio@vger.kernel.org 169Description: 170 Scaled temperature measurement in milli degrees Celsius. 171 172What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 173What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 174What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 175KernelVersion: 2.6.35 176Contact: linux-iio@vger.kernel.org 177Description: 178 Acceleration in direction x, y or z (may be arbitrarily assigned 179 but should match other such assignments on device). 180 Has all of the equivalent parameters as per voltageY. Units 181 after application of scale and offset are m/s^2. 182 183What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw 184What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw 185What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw 186KernelVersion: 4.11 187Contact: linux-iio@vger.kernel.org 188Description: 189 Gravity in direction x, y or z (may be arbitrarily assigned 190 but should match other such assignments on device). 191 Units after application of scale and offset are m/s^2. 192 193What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw 194KernelVersion: 4.17 195Contact: linux-iio@vger.kernel.org 196Description: 197 Angle of rotation. Units after application of scale and offset 198 are radians. 199 200What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 201What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 202What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 203KernelVersion: 2.6.35 204Contact: linux-iio@vger.kernel.org 205Description: 206 Angular velocity about axis x, y or z (may be arbitrarily 207 assigned). Has all the equivalent parameters as per voltageY. 208 Units after application of scale and offset are radians per 209 second. 210 211What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 212What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 213What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 214KernelVersion: 2.6.35 215Contact: linux-iio@vger.kernel.org 216Description: 217 Inclination raw reading about axis x, y or z (may be 218 arbitrarily assigned). Data converted by application of offset 219 and scale to degrees. 220 221What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 222What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 223What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 224KernelVersion: 2.6.35 225Contact: linux-iio@vger.kernel.org 226Description: 227 Magnetic field along axis x, y or z (may be arbitrarily 228 assigned). Data converted by application of offset 229 then scale to Gauss. 230 231What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 232What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 233What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 234KernelVersion: 2.6.36 235Contact: linux-iio@vger.kernel.org 236Description: 237 Highest value since some reset condition. These 238 attributes allow access to this and are otherwise 239 the direct equivalent of the <type>Y[_name]_raw attributes. 240 241What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 242KernelVersion: 2.6.36 243Contact: linux-iio@vger.kernel.org 244Description: 245 A computed peak value based on the sum squared magnitude of 246 the underlying value in the specified directions. 247 248What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw 249What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw 250KernelVersion: 3.8 251Contact: linux-iio@vger.kernel.org 252Description: 253 Raw pressure measurement from channel Y. Units after 254 application of scale and offset are kilopascal. 255 256What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input 257What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input 258KernelVersion: 3.8 259Contact: linux-iio@vger.kernel.org 260Description: 261 Scaled pressure measurement from channel Y, in kilopascal. 262 263What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw 264KernelVersion: 3.14 265Contact: linux-iio@vger.kernel.org 266Description: 267 Raw humidity measurement of air. Units after application of 268 scale and offset are milli percent. 269 270What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input 271KernelVersion: 3.14 272Contact: linux-iio@vger.kernel.org 273Description: 274 Scaled humidity measurement in milli percent. 275 276What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw 277KernelVersion: 3.5 278Contact: linux-iio@vger.kernel.org 279Description: 280 Averaged raw measurement from channel X. The number of values 281 used for averaging is device specific. The converting rules for 282 normal raw values also applies to the averaged raw values. 283 284What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 285What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 286What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 287What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 288What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 289What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 290What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset 291What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset 292What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset 293What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset 294What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset 295What: /sys/bus/iio/devices/iio:deviceX/in_current_offset 296What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset 297What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset 298What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset 299What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset 300What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 301What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 302What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset 303What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset 304What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset 305What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset 306What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset 307What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset 308KernelVersion: 2.6.35 309Contact: linux-iio@vger.kernel.org 310Description: 311 If known for a device, offset to be added to <type>[Y]_raw prior 312 to scaling by <type>[Y]_scale in order to obtain value in the 313 <type> units as specified in <type>[Y]_raw documentation. 314 Not present if the offset is always 0 or unknown. If Y or 315 axis <x|y|z> is not present, then the offset applies to all 316 in channels of <type>. 317 May be writable if a variable offset can be applied on the 318 device. Note that this is different to calibbias which 319 is for devices (or drivers) that apply offsets to compensate 320 for variation between different instances of the part, typically 321 adjusted by using some hardware supported calibration procedure. 322 Calibbias is applied internally, offset is applied in userspace 323 to the _raw output. 324 325What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 326What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale 327What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale 328What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 329What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 330What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale 331What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale 332What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale 333What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 334What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 335What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale 336What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale 337What: /sys/bus/iio/devices/iio:deviceX/in_current_scale 338What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale 339What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale 340What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale 341What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale 342What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 343What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 344What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 345What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale 346What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale 347What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 348What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 349What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 350What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 351What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale 352What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale 353What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale 354What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale 355What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale 356What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale 357What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale 358What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale 359What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale 360What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale 361What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale 362KernelVersion: 2.6.35 363Contact: linux-iio@vger.kernel.org 364Description: 365 If known for a device, scale to be applied to <type>Y[_name]_raw 366 post addition of <type>[Y][_name]_offset in order to obtain the 367 measured value in <type> units as specified in 368 <type>[Y][_name]_raw documentation. If shared across all in 369 channels then Y and <x|y|z> are not present and the value is 370 called <type>[Y][_name]_scale. The peak modifier means this 371 value is applied to <type>Y[_name]_peak_raw values. 372 373What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 374What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 375What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 376What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 377What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 378What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 379What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 380What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 381What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias 382What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias 383KernelVersion: 2.6.35 384Contact: linux-iio@vger.kernel.org 385Description: 386 Hardware applied calibration offset (assumed to fix production 387 inaccuracies). 388 389What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 390What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 391What /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale 392What /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale 393What /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale 394What /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale 395What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 396What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 397What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 398What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 399What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 400What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 401What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 402what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 403what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 404What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale 405What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale 406What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale 407KernelVersion: 2.6.35 408Contact: linux-iio@vger.kernel.org 409Description: 410 Hardware applied calibration scale factor (assumed to fix 411 production inaccuracies). If shared across all channels, 412 <type>_calibscale is used. 413 414What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender 415What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender 416What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender 417What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender 418KernelVersion: 4.0 419Contact: linux-iio@vger.kernel.org 420Description: 421 Gender of the user (e.g.: male, female) used by some pedometers 422 to compute the stride length, distance, speed and activity 423 type. 424 425What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available 426What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available 427What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available 428What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available 429KernelVersion: 4.0 430Contact: linux-iio@vger.kernel.org 431Description: 432 Lists all available gender values (e.g.: male, female). 433 434What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight 435What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight 436What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight 437What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight 438KernelVersion: 3.19 439Contact: linux-iio@vger.kernel.org 440Description: 441 Height of the user (in meters) used by some pedometers 442 to compute the stride length, distance, speed and activity 443 type. 444 445What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight 446KernelVersion: 4.0 447Contact: linux-iio@vger.kernel.org 448Description: 449 Weight of the user (in kg). It is needed by some pedometers 450 to compute the calories burnt by the user. 451 452What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 453What: /sys/.../iio:deviceX/in_anglvel_scale_available 454What: /sys/.../iio:deviceX/in_magn_scale_available 455What: /sys/.../iio:deviceX/in_illuminance_scale_available 456What: /sys/.../iio:deviceX/in_intensity_scale_available 457What: /sys/.../iio:deviceX/in_proximity_scale_available 458What: /sys/.../iio:deviceX/in_voltageX_scale_available 459What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 460What: /sys/.../iio:deviceX/out_voltageX_scale_available 461What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 462What: /sys/.../iio:deviceX/in_capacitance_scale_available 463What: /sys/.../iio:deviceX/in_pressure_scale_available 464What: /sys/.../iio:deviceX/in_pressureY_scale_available 465KernelVersion: 2.6.35 466Contact: linux-iio@vger.kernel.org 467Description: 468 If a discrete set of scale values is available, they 469 are listed in this attribute. 470 471What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 472What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain 473What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain 474What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain 475What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain 476KernelVersion: 2.6.35 477Contact: linux-iio@vger.kernel.org 478Description: 479 Hardware applied gain factor. If shared across all channels, 480 <type>_hardwaregain is used. 481 482What: /sys/.../in_accel_filter_low_pass_3db_frequency 483What: /sys/.../in_magn_filter_low_pass_3db_frequency 484What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 485KernelVersion: 3.2 486Contact: linux-iio@vger.kernel.org 487Description: 488 If a known or controllable low pass filter is applied 489 to the underlying data channel, then this parameter 490 gives the 3dB frequency of the filter in Hz. 491 492What: /sys/.../in_accel_filter_high_pass_3db_frequency 493What: /sys/.../in_anglvel_filter_high_pass_3db_frequency 494What: /sys/.../in_magn_filter_high_pass_3db_frequency 495KernelVersion: 4.2 496Contact: linux-iio@vger.kernel.org 497Description: 498 If a known or controllable high pass filter is applied 499 to the underlying data channel, then this parameter 500 gives the 3dB frequency of the filter in Hz. 501 502What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 503What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 504KernelVersion: 2.6.37 505Contact: linux-iio@vger.kernel.org 506Description: 507 Raw (unscaled, no bias etc.) output voltage for 508 channel Y. The number must always be specified and 509 unique if the output corresponds to a single channel. 510 While DAC like devices typically use out_voltage, 511 a continuous frequency generating device, such as 512 a DDS or PLL should use out_altvoltage. 513 514What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 515What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 516KernelVersion: 2.6.37 517Contact: linux-iio@vger.kernel.org 518Description: 519 Raw (unscaled, no bias etc.) output voltage for an aggregate of 520 channel Y, channel Z, etc. This interface is available in cases 521 where a single output sets the value for multiple channels 522 simultaneously. 523 524What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 525What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 526What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 527What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 528KernelVersion: 2.6.38 529Contact: linux-iio@vger.kernel.org 530Description: 531 Specifies the output powerdown mode. 532 DAC output stage is disconnected from the amplifier and 533 1kohm_to_gnd: connected to ground via an 1kOhm resistor, 534 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor, 535 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 536 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 537 90kohm_to_gnd: connected to ground via a 90kOhm resistor, 538 100kohm_to_gnd: connected to ground via an 100kOhm resistor, 539 125kohm_to_gnd: connected to ground via an 125kOhm resistor, 540 500kohm_to_gnd: connected to ground via a 500kOhm resistor, 541 640kohm_to_gnd: connected to ground via a 640kOhm resistor, 542 three_state: left floating. 543 For a list of available output power down options read 544 outX_powerdown_mode_available. If Y is not present the 545 mode is shared across all outputs. 546 547What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available 548What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 549What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available 550What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 551KernelVersion: 2.6.38 552Contact: linux-iio@vger.kernel.org 553Description: 554 Lists all available output power down modes. 555 If Y is not present the mode is shared across all outputs. 556 557What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 558What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 559What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 560What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 561KernelVersion: 2.6.38 562Contact: linux-iio@vger.kernel.org 563Description: 564 Writing 1 causes output Y to enter the power down mode specified 565 by the corresponding outY_powerdown_mode. DAC output stage is 566 disconnected from the amplifier. Clearing returns to normal 567 operation. Y may be suppressed if all outputs are controlled 568 together. 569 570What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 571KernelVersion: 3.4.0 572Contact: linux-iio@vger.kernel.org 573Description: 574 Output frequency for channel Y in Hz. The number must always be 575 specified and unique if the output corresponds to a single 576 channel. 577 578What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 579KernelVersion: 3.4.0 580Contact: linux-iio@vger.kernel.org 581Description: 582 Phase in radians of one frequency/clock output Y 583 (out_altvoltageY) relative to another frequency/clock output 584 (out_altvoltageZ) of the device X. The number must always be 585 specified and unique if the output corresponds to a single 586 channel. 587 588What: /sys/bus/iio/devices/iio:deviceX/events 589KernelVersion: 2.6.35 590Contact: linux-iio@vger.kernel.org 591Description: 592 Configuration of which hardware generated events are passed up 593 to user-space. 594 595What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 596What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 597What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 598What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 599What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 600What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 601What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 602What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 603What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 604What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 605What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 606What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 607What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 608What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 609What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 610What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 611What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 612What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 613What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en 614What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en 615What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en 616What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en 617What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en 618What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en 619What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en 620What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en 621What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 622What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 623What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 624What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 625What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en 626What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 627What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 628KernelVersion: 2.6.37 629Contact: linux-iio@vger.kernel.org 630Description: 631 Event generated when channel passes a threshold in the specified 632 (_rising|_falling) direction. If the direction is not specified, 633 then either the device will report an event which ever direction 634 a single threshold value is passed in (e.g. 635 <type>[Y][_name]_<raw|input>_thresh_value) or 636 <type>[Y][_name]_<raw|input>_thresh_rising_value and 637 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 638 different values, but the device can only enable both thresholds 639 or neither. 640 Note the driver will assume the last p events requested are 641 to be enabled where p is how many it supports (which may vary 642 depending on the exact set requested. So if you want to be 643 sure you have set what you think you have, check the contents of 644 these attributes after everything is configured. Drivers may 645 have to buffer any parameters so that they are consistent when 646 a given event type is enabled at a future point (and not those for 647 whatever event was previously enabled). 648 649What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 650What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 651What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 652What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 653What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 654What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 655What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 656What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 657What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 658What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 659What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 660What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 661What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 662What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 663What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 664What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 665What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 666What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 667What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en 668What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en 669What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en 670What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en 671What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en 672What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en 673What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en 674What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en 675What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 676What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 677What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 678What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 679What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 680What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 681KernelVersion: 2.6.37 682Contact: linux-iio@vger.kernel.org 683Description: 684 Event generated when channel passes a threshold on the rate of 685 change (1st differential) in the specified (_rising|_falling) 686 direction. If the direction is not specified, then either the 687 device will report an event which ever direction a single 688 threshold value is passed in (e.g. 689 <type>[Y][_name]_<raw|input>_roc_value) or 690 <type>[Y][_name]_<raw|input>_roc_rising_value and 691 <type>[Y][_name]_<raw|input>_roc_falling_value may take 692 different values, but the device can only enable both rate of 693 change thresholds or neither. 694 Note the driver will assume the last p events requested are 695 to be enabled where p is however many it supports (which may 696 vary depending on the exact set requested. So if you want to be 697 sure you have set what you think you have, check the contents of 698 these attributes after everything is configured. Drivers may 699 have to buffer any parameters so that they are consistent when 700 a given event type is enabled a future point (and not those for 701 whatever event was previously enabled). 702 703What: /sys/.../events/in_accel_thresh_rising_value 704What: /sys/.../events/in_accel_thresh_falling_value 705What: /sys/.../events/in_accel_x_raw_thresh_rising_value 706What: /sys/.../events/in_accel_x_raw_thresh_falling_value 707What: /sys/.../events/in_accel_y_raw_thresh_rising_value 708What: /sys/.../events/in_accel_y_raw_thresh_falling_value 709What: /sys/.../events/in_accel_z_raw_thresh_rising_value 710What: /sys/.../events/in_accel_z_raw_thresh_falling_value 711What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 712What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 713What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 714What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 715What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 716What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 717What: /sys/.../events/in_magn_x_raw_thresh_rising_value 718What: /sys/.../events/in_magn_x_raw_thresh_falling_value 719What: /sys/.../events/in_magn_y_raw_thresh_rising_value 720What: /sys/.../events/in_magn_y_raw_thresh_falling_value 721What: /sys/.../events/in_magn_z_raw_thresh_rising_value 722What: /sys/.../events/in_magn_z_raw_thresh_falling_value 723What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value 724What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value 725What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value 726What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value 727What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value 728What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value 729What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value 730What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value 731What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 732What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 733What: /sys/.../events/in_voltageY_raw_thresh_rising_value 734What: /sys/.../events/in_voltageY_raw_thresh_falling_value 735What: /sys/.../events/in_tempY_raw_thresh_rising_value 736What: /sys/.../events/in_tempY_raw_thresh_falling_value 737What: /sys/.../events/in_illuminance0_thresh_falling_value 738what: /sys/.../events/in_illuminance0_thresh_rising_value 739what: /sys/.../events/in_proximity0_thresh_falling_value 740what: /sys/.../events/in_proximity0_thresh_rising_value 741KernelVersion: 2.6.37 742Contact: linux-iio@vger.kernel.org 743Description: 744 Specifies the value of threshold that the device is comparing 745 against for the events enabled by 746 <type>Y[_name]_thresh[_rising|falling]_en. 747 If separate attributes exist for the two directions, but 748 direction is not specified for this attribute, then a single 749 threshold value applies to both directions. 750 The raw or input element of the name indicates whether the 751 value is in raw device units or in processed units (as _raw 752 and _input do on sysfs direct channel read attributes). 753 754What: /sys/.../events/in_accel_scale 755What: /sys/.../events/in_accel_peak_scale 756What: /sys/.../events/in_anglvel_scale 757What: /sys/.../events/in_magn_scale 758What: /sys/.../events/in_rot_from_north_magnetic_scale 759What: /sys/.../events/in_rot_from_north_true_scale 760What: /sys/.../events/in_voltage_scale 761What: /sys/.../events/in_voltage_supply_scale 762What: /sys/.../events/in_temp_scale 763What: /sys/.../events/in_illuminance_scale 764What: /sys/.../events/in_proximity_scale 765KernelVersion: 3.21 766Contact: linux-iio@vger.kernel.org 767Description: 768 Specifies the conversion factor from the standard units 769 to device specific units used to set the event trigger 770 threshold. 771 772What: /sys/.../events/in_accel_x_thresh_rising_hysteresis 773What: /sys/.../events/in_accel_x_thresh_falling_hysteresis 774What: /sys/.../events/in_accel_x_thresh_either_hysteresis 775What: /sys/.../events/in_accel_y_thresh_rising_hysteresis 776What: /sys/.../events/in_accel_y_thresh_falling_hysteresis 777What: /sys/.../events/in_accel_y_thresh_either_hysteresis 778What: /sys/.../events/in_accel_z_thresh_rising_hysteresis 779What: /sys/.../events/in_accel_z_thresh_falling_hysteresis 780What: /sys/.../events/in_accel_z_thresh_either_hysteresis 781What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis 782What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis 783What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis 784What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis 785What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis 786What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis 787What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis 788What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis 789What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis 790What: /sys/.../events/in_magn_x_thresh_rising_hysteresis 791What: /sys/.../events/in_magn_x_thresh_falling_hysteresis 792What: /sys/.../events/in_magn_x_thresh_either_hysteresis 793What: /sys/.../events/in_magn_y_thresh_rising_hysteresis 794What: /sys/.../events/in_magn_y_thresh_falling_hysteresis 795What: /sys/.../events/in_magn_y_thresh_either_hysteresis 796What: /sys/.../events/in_magn_z_thresh_rising_hysteresis 797What: /sys/.../events/in_magn_z_thresh_falling_hysteresis 798What: /sys/.../events/in_magn_z_thresh_either_hysteresis 799What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis 800What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis 801What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis 802What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis 803What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis 804What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis 805What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis 806What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis 807What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis 808What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis 809What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis 810What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis 811What: /sys/.../events/in_voltageY_thresh_rising_hysteresis 812What: /sys/.../events/in_voltageY_thresh_falling_hysteresis 813What: /sys/.../events/in_voltageY_thresh_either_hysteresis 814What: /sys/.../events/in_tempY_thresh_rising_hysteresis 815What: /sys/.../events/in_tempY_thresh_falling_hysteresis 816What: /sys/.../events/in_tempY_thresh_either_hysteresis 817What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis 818what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis 819what: /sys/.../events/in_illuminance0_thresh_either_hysteresis 820what: /sys/.../events/in_proximity0_thresh_falling_hysteresis 821what: /sys/.../events/in_proximity0_thresh_rising_hysteresis 822what: /sys/.../events/in_proximity0_thresh_either_hysteresis 823KernelVersion: 3.13 824Contact: linux-iio@vger.kernel.org 825Description: 826 Specifies the hysteresis of threshold that the device is comparing 827 against for the events enabled by 828 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis. 829 If separate attributes exist for the two directions, but 830 direction is not specified for this attribute, then a single 831 hysteresis value applies to both directions. 832 For falling events the hysteresis is added to the _value attribute for 833 this event to get the upper threshold for when the event goes back to 834 normal, for rising events the hysteresis is subtracted from the _value 835 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200 836 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event 837 will get activated once in_voltage0_raw goes above 1200 and will become 838 deactivated again once the value falls below 1150. 839 840What: /sys/.../events/in_accel_x_raw_roc_rising_value 841What: /sys/.../events/in_accel_x_raw_roc_falling_value 842What: /sys/.../events/in_accel_y_raw_roc_rising_value 843What: /sys/.../events/in_accel_y_raw_roc_falling_value 844What: /sys/.../events/in_accel_z_raw_roc_rising_value 845What: /sys/.../events/in_accel_z_raw_roc_falling_value 846What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 847What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 848What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 849What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 850What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 851What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 852What: /sys/.../events/in_magn_x_raw_roc_rising_value 853What: /sys/.../events/in_magn_x_raw_roc_falling_value 854What: /sys/.../events/in_magn_y_raw_roc_rising_value 855What: /sys/.../events/in_magn_y_raw_roc_falling_value 856What: /sys/.../events/in_magn_z_raw_roc_rising_value 857What: /sys/.../events/in_magn_z_raw_roc_falling_value 858What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value 859What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value 860What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value 861What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value 862What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value 863What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value 864What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value 865What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value 866What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 867What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 868What: /sys/.../events/in_voltageY_raw_roc_rising_value 869What: /sys/.../events/in_voltageY_raw_roc_falling_value 870What: /sys/.../events/in_tempY_raw_roc_rising_value 871What: /sys/.../events/in_tempY_raw_roc_falling_value 872KernelVersion: 2.6.37 873Contact: linux-iio@vger.kernel.org 874Description: 875 Specifies the value of rate of change threshold that the 876 device is comparing against for the events enabled by 877 <type>[Y][_name]_roc[_rising|falling]_en. 878 If separate attributes exist for the two directions, 879 but direction is not specified for this attribute, 880 then a single threshold value applies to both directions. 881 The raw or input element of the name indicates whether the 882 value is in raw device units or in processed units (as _raw 883 and _input do on sysfs direct channel read attributes). 884 885What: /sys/.../events/in_accel_x_thresh_rising_period 886What: /sys/.../events/in_accel_x_thresh_falling_period 887What: /sys/.../events/in_accel_x_roc_rising_period 888What: /sys/.../events/in_accel_x_roc_falling_period 889What: /sys/.../events/in_accel_y_thresh_rising_period 890What: /sys/.../events/in_accel_y_thresh_falling_period 891What: /sys/.../events/in_accel_y_roc_rising_period 892What: /sys/.../events/in_accel_y_roc_falling_period 893What: /sys/.../events/in_accel_z_thresh_rising_period 894What: /sys/.../events/in_accel_z_thresh_falling_period 895What: /sys/.../events/in_accel_z_roc_rising_period 896What: /sys/.../events/in_accel_z_roc_falling_period 897What: /sys/.../events/in_anglvel_x_thresh_rising_period 898What: /sys/.../events/in_anglvel_x_thresh_falling_period 899What: /sys/.../events/in_anglvel_x_roc_rising_period 900What: /sys/.../events/in_anglvel_x_roc_falling_period 901What: /sys/.../events/in_anglvel_y_thresh_rising_period 902What: /sys/.../events/in_anglvel_y_thresh_falling_period 903What: /sys/.../events/in_anglvel_y_roc_rising_period 904What: /sys/.../events/in_anglvel_y_roc_falling_period 905What: /sys/.../events/in_anglvel_z_thresh_rising_period 906What: /sys/.../events/in_anglvel_z_thresh_falling_period 907What: /sys/.../events/in_anglvel_z_roc_rising_period 908What: /sys/.../events/in_anglvel_z_roc_falling_period 909What: /sys/.../events/in_magn_x_thresh_rising_period 910What: /sys/.../events/in_magn_x_thresh_falling_period 911What: /sys/.../events/in_magn_x_roc_rising_period 912What: /sys/.../events/in_magn_x_roc_falling_period 913What: /sys/.../events/in_magn_y_thresh_rising_period 914What: /sys/.../events/in_magn_y_thresh_falling_period 915What: /sys/.../events/in_magn_y_roc_rising_period 916What: /sys/.../events/in_magn_y_roc_falling_period 917What: /sys/.../events/in_magn_z_thresh_rising_period 918What: /sys/.../events/in_magn_z_thresh_falling_period 919What: /sys/.../events/in_magn_z_roc_rising_period 920What: /sys/.../events/in_magn_z_roc_falling_period 921What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period 922What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period 923What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period 924What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period 925What: /sys/.../events/in_rot_from_north_true_thresh_rising_period 926What: /sys/.../events/in_rot_from_north_true_thresh_falling_period 927What: /sys/.../events/in_rot_from_north_true_roc_rising_period 928What: /sys/.../events/in_rot_from_north_true_roc_falling_period 929What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period 930What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period 931What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period 932What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period 933What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period 934What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period 935What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period 936What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period 937What: /sys/.../events/in_voltageY_supply_thresh_rising_period 938What: /sys/.../events/in_voltageY_supply_thresh_falling_period 939What: /sys/.../events/in_voltageY_supply_roc_rising_period 940What: /sys/.../events/in_voltageY_supply_roc_falling_period 941What: /sys/.../events/in_voltageY_thresh_rising_period 942What: /sys/.../events/in_voltageY_thresh_falling_period 943What: /sys/.../events/in_voltageY_roc_rising_period 944What: /sys/.../events/in_voltageY_roc_falling_period 945What: /sys/.../events/in_tempY_thresh_rising_period 946What: /sys/.../events/in_tempY_thresh_falling_period 947What: /sys/.../events/in_tempY_roc_rising_period 948What: /sys/.../events/in_tempY_roc_falling_period 949What: /sys/.../events/in_accel_x&y&z_mag_falling_period 950What: /sys/.../events/in_intensity0_thresh_period 951What: /sys/.../events/in_proximity0_thresh_period 952What: /sys/.../events/in_activity_still_thresh_rising_period 953What: /sys/.../events/in_activity_still_thresh_falling_period 954What: /sys/.../events/in_activity_walking_thresh_rising_period 955What: /sys/.../events/in_activity_walking_thresh_falling_period 956What: /sys/.../events/in_activity_jogging_thresh_rising_period 957What: /sys/.../events/in_activity_jogging_thresh_falling_period 958What: /sys/.../events/in_activity_running_thresh_rising_period 959What: /sys/.../events/in_activity_running_thresh_falling_period 960KernelVersion: 2.6.37 961Contact: linux-iio@vger.kernel.org 962Description: 963 Period of time (in seconds) for which the condition must be 964 met before an event is generated. If direction is not 965 specified then this period applies to both directions. 966 967What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db 968What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db 969What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db 970KernelVersion: 4.2 971Contact: linux-iio@vger.kernel.org 972Description: 973 If a low pass filter can be applied to the event generation 974 this property gives its 3db frequency in Hz. 975 A value of zero disables the filter. 976 977What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db 978What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db 979What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db 980KernelVersion: 4.2 981Contact: linux-iio@vger.kernel.org 982Description: 983 If a high pass filter can be applied to the event generation 984 this property gives its 3db frequency in Hz. 985 A value of zero disables the filter. 986 987What: /sys/.../events/in_activity_still_thresh_rising_en 988What: /sys/.../events/in_activity_still_thresh_falling_en 989What: /sys/.../events/in_activity_walking_thresh_rising_en 990What: /sys/.../events/in_activity_walking_thresh_falling_en 991What: /sys/.../events/in_activity_jogging_thresh_rising_en 992What: /sys/.../events/in_activity_jogging_thresh_falling_en 993What: /sys/.../events/in_activity_running_thresh_rising_en 994What: /sys/.../events/in_activity_running_thresh_falling_en 995KernelVersion: 3.19 996Contact: linux-iio@vger.kernel.org 997Description: 998 Enables or disables activitity events. Depending on direction 999 an event is generated when sensor ENTERS or LEAVES a given state. 1000 1001What: /sys/.../events/in_activity_still_thresh_rising_value 1002What: /sys/.../events/in_activity_still_thresh_falling_value 1003What: /sys/.../events/in_activity_walking_thresh_rising_value 1004What: /sys/.../events/in_activity_walking_thresh_falling_value 1005What: /sys/.../events/in_activity_jogging_thresh_rising_value 1006What: /sys/.../events/in_activity_jogging_thresh_falling_value 1007What: /sys/.../events/in_activity_running_thresh_rising_value 1008What: /sys/.../events/in_activity_running_thresh_falling_value 1009KernelVersion: 3.19 1010Contact: linux-iio@vger.kernel.org 1011Description: 1012 Confidence value (in units as percentage) to be used 1013 for deciding when an event should be generated. E.g for 1014 running: If the confidence value reported by the sensor 1015 is greater than in_activity_running_thresh_rising_value 1016 then the sensor ENTERS running state. Conversely, if the 1017 confidence value reported by the sensor is lower than 1018 in_activity_running_thresh_falling_value then the sensor 1019 is LEAVING running state. 1020 1021What: /sys/.../iio:deviceX/events/in_accel_mag_en 1022What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 1023What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 1024What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 1025What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 1026What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 1027What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 1028What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 1029What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 1030What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 1031What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 1032What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 1033What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 1034What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 1035KernelVersion: 2.6.37 1036Contact: linux-iio@vger.kernel.org 1037Description: 1038 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 1039 magnitude of the channel is compared to the threshold, not its 1040 signed value. 1041 1042What: /sys/.../events/in_accel_raw_mag_value 1043What: /sys/.../events/in_accel_x_raw_mag_rising_value 1044What: /sys/.../events/in_accel_y_raw_mag_rising_value 1045What: /sys/.../events/in_accel_z_raw_mag_rising_value 1046KernelVersion: 2.6.37 1047Contact: linux-iio@vger.kernel.org 1048Description: 1049 The value to which the magnitude of the channel is compared. If 1050 number or direction is not specified, applies to all channels of 1051 this type. 1052 1053What: /sys/.../events/in_steps_change_en 1054KernelVersion: 4.0 1055Contact: linux-iio@vger.kernel.org 1056Description: 1057 Event generated when channel passes a threshold on the absolute 1058 change in value. E.g. for steps: a step change event is 1059 generated each time the user takes N steps, where N is set using 1060 in_steps_change_value. 1061 1062What: /sys/.../events/in_steps_change_value 1063KernelVersion: 4.0 1064Contact: linux-iio@vger.kernel.org 1065Description: 1066 Specifies the value of change threshold that the 1067 device is comparing against for the events enabled by 1068 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps: 1069 if set to 3, a step change event will be generated every 3 1070 steps. 1071 1072What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 1073KernelVersion: 2.6.35 1074Contact: linux-iio@vger.kernel.org 1075Description: 1076 The name of the trigger source being used, as per string given 1077 in /sys/class/iio/triggerY/name. 1078 1079What: /sys/bus/iio/devices/iio:deviceX/buffer/length 1080KernelVersion: 2.6.35 1081Contact: linux-iio@vger.kernel.org 1082Description: 1083 Number of scans contained by the buffer. 1084 1085What: /sys/bus/iio/devices/iio:deviceX/buffer/enable 1086KernelVersion: 2.6.35 1087Contact: linux-iio@vger.kernel.org 1088Description: 1089 Actually start the buffer capture up. Will start trigger 1090 if first device and appropriate. 1091 1092What: /sys/bus/iio/devices/iio:deviceX/scan_elements 1093KernelVersion: 2.6.37 1094Contact: linux-iio@vger.kernel.org 1095Description: 1096 Directory containing interfaces for elements that will be 1097 captured for a single triggered sample set in the buffer. 1098 1099What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en 1100What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en 1101What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en 1102What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en 1103What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en 1104What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en 1105What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en 1106What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en 1107What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en 1108What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en 1109What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en 1110What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en 1111What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en 1112What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en 1113What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en 1114What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en 1115What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en 1116What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en 1117What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en 1118What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en 1119What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en 1120What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en 1121What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en 1122What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en 1123What: /sys/.../iio:deviceX/scan_elements/in_pressure_en 1124What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en 1125What: /sys/.../iio:deviceX/scan_elements/in_proximity_en 1126KernelVersion: 2.6.37 1127Contact: linux-iio@vger.kernel.org 1128Description: 1129 Scan element control for triggered data capture. 1130 1131What: /sys/.../iio:deviceX/scan_elements/in_accel_type 1132What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type 1133What: /sys/.../iio:deviceX/scan_elements/in_magn_type 1134What: /sys/.../iio:deviceX/scan_elements/in_incli_type 1135What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type 1136What: /sys/.../iio:deviceX/scan_elements/in_voltage_type 1137What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type 1138What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type 1139What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type 1140What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type 1141What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type 1142What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type 1143What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type 1144What: /sys/.../iio:deviceX/scan_elements/in_pressure_type 1145What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type 1146What: /sys/.../iio:deviceX/scan_elements/in_proximity_type 1147KernelVersion: 2.6.37 1148Contact: linux-iio@vger.kernel.org 1149Description: 1150 Description of the scan element data storage within the buffer 1151 and hence the form in which it is read from user-space. 1152 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 1153 be or le specifies big or little endian. s or u specifies if 1154 signed (2's complement) or unsigned. bits is the number of bits 1155 of data and storagebits is the space (after padding) that it 1156 occupies in the buffer. shift if specified, is the shift that 1157 needs to be applied prior to masking out unused bits. Some 1158 devices put their data in the middle of the transferred elements 1159 with additional information on both sides. Note that some 1160 devices will have additional information in the unused bits 1161 so to get a clean value, the bits value must be used to mask 1162 the buffer output value appropriately. The storagebits value 1163 also specifies the data alignment. So s48/64>>2 will be a 1164 signed 48 bit integer stored in a 64 bit location aligned to 1165 a 64 bit boundary. To obtain the clean value, shift right 2 1166 and apply a mask to zero the top 16 bits of the result. 1167 For other storage combinations this attribute will be extended 1168 appropriately. 1169 1170What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available 1171KernelVersion: 2.6.37 1172Contact: linux-iio@vger.kernel.org 1173Description: 1174 If the type parameter can take one of a small set of values, 1175 this attribute lists them. 1176 1177What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index 1178What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index 1179What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index 1180What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index 1181What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index 1182What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index 1183What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index 1184What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index 1185What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index 1186What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index 1187What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index 1188What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index 1189What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index 1190What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index 1191What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index 1192What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index 1193What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index 1194What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index 1195What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index 1196What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index 1197What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index 1198What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index 1199What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index 1200What: /sys/.../iio:deviceX/scan_elements/in_pressure_index 1201What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index 1202What: /sys/.../iio:deviceX/scan_elements/in_proximity_index 1203KernelVersion: 2.6.37 1204Contact: linux-iio@vger.kernel.org 1205Description: 1206 A single positive integer specifying the position of this 1207 scan element in the buffer. Note these are not dependent on 1208 what is enabled and may not be contiguous. Thus for user-space 1209 to establish the full layout these must be used in conjunction 1210 with all _en attributes to establish which channels are present, 1211 and the relevant _type attributes to establish the data storage 1212 format. 1213 1214What: /sys/.../iio:deviceX/in_activity_still_input 1215What: /sys/.../iio:deviceX/in_activity_walking_input 1216What: /sys/.../iio:deviceX/in_activity_jogging_input 1217What: /sys/.../iio:deviceX/in_activity_running_input 1218KernelVersion: 3.19 1219Contact: linux-iio@vger.kernel.org 1220Description: 1221 This attribute is used to read the confidence for an activity 1222 expressed in units as percentage. 1223 1224What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 1225KernelVersion: 2.6.38 1226Contact: linux-iio@vger.kernel.org 1227Description: 1228 This attribute is used to read the amount of quadrature error 1229 present in the device at a given time. 1230 1231What: /sys/.../iio:deviceX/in_accelX_power_mode 1232KernelVersion: 3.11 1233Contact: linux-iio@vger.kernel.org 1234Description: 1235 Specifies the chip power mode. 1236 low_noise: reduce noise level from ADC, 1237 low_power: enable low current consumption. 1238 For a list of available output power modes read 1239 in_accel_power_mode_available. 1240 1241What: /sys/.../iio:deviceX/in_energy_input 1242What: /sys/.../iio:deviceX/in_energy_raw 1243KernelVersion: 4.0 1244Contact: linux-iio@vger.kernel.org 1245Description: 1246 This attribute is used to read the energy value reported by the 1247 device (e.g.: human activity sensors report energy burnt by the 1248 user). Units after application of scale are Joules. 1249 1250What: /sys/.../iio:deviceX/in_distance_input 1251What: /sys/.../iio:deviceX/in_distance_raw 1252KernelVersion: 4.0 1253Contact: linux-iio@vger.kernel.org 1254Description: 1255 This attribute is used to read the measured distance to an object 1256 or the distance covered by the user since the last reboot while 1257 activated. Units after application of scale are meters. 1258 1259What: /sys/bus/iio/devices/iio:deviceX/store_eeprom 1260KernelVersion: 3.4.0 1261Contact: linux-iio@vger.kernel.org 1262Description: 1263 Writing '1' stores the current device configuration into 1264 on-chip EEPROM. After power-up or chip reset the device will 1265 automatically load the saved configuration. 1266 1267What: /sys/.../iio:deviceX/in_proximity_raw 1268What: /sys/.../iio:deviceX/in_proximity_input 1269What: /sys/.../iio:deviceX/in_proximityY_raw 1270KernelVersion: 3.4 1271Contact: linux-iio@vger.kernel.org 1272Description: 1273 Proximity measurement indicating that some 1274 object is near the sensor, usually by observing 1275 reflectivity of infrared or ultrasound emitted. 1276 Often these sensors are unit less and as such conversion 1277 to SI units is not possible. Higher proximity measurements 1278 indicate closer objects, and vice versa. Units after 1279 application of scale and offset are meters. 1280 1281What: /sys/.../iio:deviceX/in_illuminance_input 1282What: /sys/.../iio:deviceX/in_illuminance_raw 1283What: /sys/.../iio:deviceX/in_illuminanceY_input 1284What: /sys/.../iio:deviceX/in_illuminanceY_raw 1285What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw 1286What: /sys/.../iio:deviceX/in_illuminance_ir_raw 1287What: /sys/.../iio:deviceX/in_illuminance_clear_raw 1288KernelVersion: 3.4 1289Contact: linux-iio@vger.kernel.org 1290Description: 1291 Illuminance measurement, units after application of scale 1292 and offset are lux. 1293 1294What: /sys/.../iio:deviceX/in_intensityY_raw 1295What: /sys/.../iio:deviceX/in_intensityY_ir_raw 1296What: /sys/.../iio:deviceX/in_intensityY_both_raw 1297What: /sys/.../iio:deviceX/in_intensityY_uv_raw 1298KernelVersion: 3.4 1299Contact: linux-iio@vger.kernel.org 1300Description: 1301 Unit-less light intensity. Modifiers both and ir indicate 1302 that measurements contain visible and infrared light 1303 components or just infrared light, respectively. Modifier uv indicates 1304 that measurements contain ultraviolet light components. 1305 1306What: /sys/.../iio:deviceX/in_uvindex_input 1307KernelVersion: 4.6 1308Contact: linux-iio@vger.kernel.org 1309Description: 1310 UV light intensity index measuring the human skin's response to 1311 different wavelength of sunlight weighted according to the 1312 standardised CIE Erythemal Action Spectrum. UV index values range 1313 from 0 (low) to >=11 (extreme). 1314 1315What: /sys/.../iio:deviceX/in_intensity_red_integration_time 1316What: /sys/.../iio:deviceX/in_intensity_green_integration_time 1317What: /sys/.../iio:deviceX/in_intensity_blue_integration_time 1318What: /sys/.../iio:deviceX/in_intensity_clear_integration_time 1319What: /sys/.../iio:deviceX/in_illuminance_integration_time 1320KernelVersion: 3.12 1321Contact: linux-iio@vger.kernel.org 1322Description: 1323 This attribute is used to get/set the integration time in 1324 seconds. 1325 1326What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time 1327KernelVersion: 4.0 1328Contact: linux-iio@vger.kernel.org 1329Description: 1330 Number of seconds in which to compute speed. 1331 1332What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw 1333KernelVersion: 3.15 1334Contact: linux-iio@vger.kernel.org 1335Description: 1336 Raw value of quaternion components using a format 1337 x y z w. Here x, y, and z component represents the axis about 1338 which a rotation will occur and w component represents the 1339 amount of rotation. 1340 1341What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw 1342What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw 1343What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw 1344What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw 1345KernelVersion: 3.15 1346Contact: linux-iio@vger.kernel.org 1347Description: 1348 Raw value of rotation from true/magnetic north measured with 1349 or without compensation from tilt sensors. 1350 1351What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw 1352What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw 1353What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw 1354KernelVersion: 3.18 1355Contact: linux-iio@vger.kernel.org 1356Description: 1357 Raw current measurement from channel X. Units are in milliamps 1358 after application of scale and offset. If no offset or scale is 1359 present, output should be considered as processed with the 1360 unit in milliamps. 1361 1362 Channels with 'i' and 'q' modifiers always exist in pairs and both 1363 channels refer to the same signal. The 'i' channel contains the in-phase 1364 component of the signal while the 'q' channel contains the quadrature 1365 component. 1366 1367What: /sys/.../iio:deviceX/in_energy_en 1368What: /sys/.../iio:deviceX/in_distance_en 1369What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en 1370What: /sys/.../iio:deviceX/in_steps_en 1371KernelVersion: 3.19 1372Contact: linux-iio@vger.kernel.org 1373Description: 1374 Activates a device feature that runs in firmware/hardware. 1375 E.g. for steps: the pedometer saves power while not used; 1376 when activated, it will count the steps taken by the user in 1377 firmware and export them through in_steps_input. 1378 1379What: /sys/.../iio:deviceX/in_steps_input 1380KernelVersion: 3.19 1381Contact: linux-iio@vger.kernel.org 1382Description: 1383 This attribute is used to read the number of steps taken by the user 1384 since the last reboot while activated. 1385 1386What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input 1387What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw 1388KernelVersion: 3.19 1389Contact: linux-iio@vger.kernel.org 1390Description: 1391 This attribute is used to read the current speed value of the 1392 user (which is the norm or magnitude of the velocity vector). 1393 Units after application of scale are m/s. 1394 1395What: /sys/.../iio:deviceX/in_steps_debounce_count 1396KernelVersion: 4.0 1397Contact: linux-iio@vger.kernel.org 1398Description: 1399 Specifies the number of steps that must occur within 1400 in_steps_filter_debounce_time for the pedometer to decide the 1401 consumer is making steps. 1402 1403What: /sys/.../iio:deviceX/in_steps_debounce_time 1404KernelVersion: 4.0 1405Contact: linux-iio@vger.kernel.org 1406Description: 1407 Specifies number of seconds in which we compute the steps 1408 that occur in order to decide if the consumer is making steps. 1409 1410What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark 1411KernelVersion: 4.2 1412Contact: linux-iio@vger.kernel.org 1413Description: 1414 A single positive integer specifying the maximum number of scan 1415 elements to wait for. 1416 Poll will block until the watermark is reached. 1417 Blocking read will wait until the minimum between the requested 1418 read amount or the low water mark is available. 1419 Non-blocking read will retrieve the available samples from the 1420 buffer even if there are less samples then watermark level. This 1421 allows the application to block on poll with a timeout and read 1422 the available samples after the timeout expires and thus have a 1423 maximum delay guarantee. 1424 1425What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available 1426KernelVersion: 4.16 1427Contact: linux-iio@vger.kernel.org 1428Description: 1429 A read-only value indicating the bytes of data available in the 1430 buffer. In the case of an output buffer, this indicates the 1431 amount of empty space available to write data to. In the case of 1432 an input buffer, this indicates the amount of data available for 1433 reading. 1434 1435What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled 1436KernelVersion: 4.2 1437Contact: linux-iio@vger.kernel.org 1438Description: 1439 A read-only boolean value that indicates if the hardware fifo is 1440 currently enabled or disabled. If the device does not have a 1441 hardware fifo this entry is not present. 1442 The hardware fifo is enabled when the buffer is enabled if the 1443 current hardware fifo watermark level is set and other current 1444 device settings allows it (e.g. if a trigger is set that samples 1445 data differently that the hardware fifo does then hardware fifo 1446 will not enabled). 1447 If the hardware fifo is enabled and the level of the hardware 1448 fifo reaches the hardware fifo watermark level the device will 1449 flush its hardware fifo to the device buffer. Doing a non 1450 blocking read on the device when no samples are present in the 1451 device buffer will also force a flush. 1452 When the hardware fifo is enabled there is no need to use a 1453 trigger to use buffer mode since the watermark settings 1454 guarantees that the hardware fifo is flushed to the device 1455 buffer. 1456 1457What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout 1458KernelVersion: 4.12 1459Contact: linux-iio@vger.kernel.org 1460Description: 1461 A read/write property to provide capability to delay reporting of 1462 samples till a timeout is reached. This allows host processors to 1463 sleep, while the sensor is storing samples in its internal fifo. 1464 The maximum timeout in seconds can be specified by setting 1465 hwfifo_timeout.The current delay can be read by reading 1466 hwfifo_timeout. A value of 0 means that there is no timeout. 1467 1468What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark 1469KernelVersion: 4.2 1470Contact: linux-iio@vger.kernel.org 1471Description: 1472 Read-only entry that contains a single integer specifying the 1473 current watermark level for the hardware fifo. If the device 1474 does not have a hardware fifo this entry is not present. 1475 The watermark level for the hardware fifo is set by the driver 1476 based on the value set by the user in buffer/watermark but 1477 taking into account hardware limitations (e.g. most hardware 1478 buffers are limited to 32-64 samples, some hardware buffers 1479 watermarks are fixed or have minimum levels). A value of 0 1480 means that the hardware watermark is unset. 1481 1482What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min 1483KernelVersion: 4.2 1484Contact: linux-iio@vger.kernel.org 1485Description: 1486 A single positive integer specifying the minimum watermark level 1487 for the hardware fifo of this device. If the device does not 1488 have a hardware fifo this entry is not present. 1489 If the user sets buffer/watermark to a value less than this one, 1490 then the hardware watermark will remain unset. 1491 1492What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max 1493KernelVersion: 4.2 1494Contact: linux-iio@vger.kernel.org 1495Description: 1496 A single positive integer specifying the maximum watermark level 1497 for the hardware fifo of this device. If the device does not 1498 have a hardware fifo this entry is not present. 1499 If the user sets buffer/watermark to a value greater than this 1500 one, then the hardware watermark will be capped at this value. 1501 1502What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available 1503KernelVersion: 4.2 1504Contact: linux-iio@vger.kernel.org 1505Description: 1506 A list of positive integers specifying the available watermark 1507 levels for the hardware fifo. This entry is optional and if it 1508 is not present it means that all the values between 1509 hwfifo_watermark_min and hwfifo_watermark_max are supported. 1510 If the user sets buffer/watermark to a value greater than 1511 hwfifo_watermak_min but not equal to any of the values in this 1512 list, the driver will chose an appropriate value for the 1513 hardware fifo watermark level. 1514 1515What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity 1516What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity 1517What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity 1518What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity 1519KernelVersion: 4.1 1520Contact: linux-iio@vger.kernel.org 1521Description: 1522 The emissivity ratio of the surface in the field of view of the 1523 contactless temperature sensor. Emissivity varies from 0 to 1, 1524 with 1 being the emissivity of a black body. 1525 1526What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio 1527What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio 1528What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio 1529KernelVersion: 4.2 1530Contact: linux-iio@vger.kernel.org 1531Description: 1532 Hardware applied number of measurements for acquiring one 1533 data point. The HW will do <type>[_name]_oversampling_ratio 1534 measurements and return the average value as output data. Each 1535 value resulted from <type>[_name]_oversampling_ratio measurements 1536 is considered as one sample for <type>[_name]_sampling_frequency. 1537 1538What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw 1539What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw 1540What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw 1541What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw 1542What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw 1543What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw 1544KernelVersion: 4.3 1545Contact: linux-iio@vger.kernel.org 1546Description: 1547 Raw (unscaled no offset etc.) percentage reading of a substance. 1548 1549What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw 1550What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw 1551What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw 1552What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw 1553KernelVersion: 4.3 1554Contact: linux-iio@vger.kernel.org 1555Description: 1556 Raw (unscaled no offset etc.) resistance reading that can be processed 1557 into an ohm value. 1558 1559What: /sys/bus/iio/devices/iio:deviceX/heater_enable 1560KernelVersion: 4.1.0 1561Contact: linux-iio@vger.kernel.org 1562Description: 1563 '1' (enable) or '0' (disable) specifying the enable 1564 of heater function. Same reading values apply 1565 This ABI is especially applicable for humidity sensors 1566 to heatup the device and get rid of any condensation 1567 in some humidity environment 1568 1569What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw 1570KernelVersion: 4.5 1571Contact: linux-iio@vger.kernel.org 1572Description: 1573 Raw (unscaled no offset etc.) pH reading of a substance as a negative 1574 base-10 logarithm of hydrodium ions in a litre of water. 1575 1576What: /sys/bus/iio/devices/iio:deviceX/mount_matrix 1577What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix 1578What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix 1579What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix 1580What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix 1581KernelVersion: 4.6 1582Contact: linux-iio@vger.kernel.org 1583Description: 1584 Mounting matrix for IIO sensors. This is a rotation matrix which 1585 informs userspace about sensor chip's placement relative to the 1586 main hardware it is mounted on. 1587 Main hardware placement is defined according to the local 1588 reference frame related to the physical quantity the sensor 1589 measures. 1590 Given that the rotation matrix is defined in a board specific 1591 way (platform data and / or device-tree), the main hardware 1592 reference frame definition is left to the implementor's choice 1593 (see below for a magnetometer example). 1594 Applications should apply this rotation matrix to samples so 1595 that when main hardware reference frame is aligned onto local 1596 reference frame, then sensor chip reference frame is also 1597 perfectly aligned with it. 1598 Matrix is a 3x3 unitary matrix and typically looks like 1599 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix 1600 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware 1601 are perfectly aligned with each other. 1602 1603 For example, a mounting matrix for a magnetometer sensor informs 1604 userspace about sensor chip's ORIENTATION relative to the main 1605 hardware. 1606 More specifically, main hardware orientation is defined with 1607 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where : 1608 * Y is in the ground plane and positive towards magnetic North ; 1609 * X is in the ground plane, perpendicular to the North axis and 1610 positive towards the East ; 1611 * Z is perpendicular to the ground plane and positive upwards. 1612 1613 An implementor might consider that for a hand-held device, a 1614 'natural' orientation would be 'front facing camera at the top'. 1615 The main hardware reference frame could then be described as : 1616 * Y is in the plane of the screen and is positive towards the 1617 top of the screen ; 1618 * X is in the plane of the screen, perpendicular to Y axis, and 1619 positive towards the right hand side of the screen ; 1620 * Z is perpendicular to the screen plane and positive out of the 1621 screen. 1622 Another example for a quadrotor UAV might be : 1623 * Y is in the plane of the propellers and positive towards the 1624 front-view camera; 1625 * X is in the plane of the propellers, perpendicular to Y axis, 1626 and positive towards the starboard side of the UAV ; 1627 * Z is perpendicular to propellers plane and positive upwards. 1628 1629What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw 1630KernelVersion: 4.8 1631Contact: linux-iio@vger.kernel.org 1632Description: 1633 Raw (unscaled no offset etc.) electric conductivity reading that 1634 can be processed to siemens per meter. 1635 1636What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw 1637KernelVersion: 4.10 1638Contact: linux-iio@vger.kernel.org 1639Description: 1640 Raw counter device counts from channel Y. For quadrature 1641 counters, multiplication by an available [Y]_scale results in 1642 the counts of a single quadrature signal phase from channel Y. 1643 1644What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw 1645KernelVersion: 4.10 1646Contact: linux-iio@vger.kernel.org 1647Description: 1648 Raw counter device index value from channel Y. This attribute 1649 provides an absolute positional reference (e.g. a pulse once per 1650 revolution) which may be used to home positional systems as 1651 required. 1652 1653What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available 1654KernelVersion: 4.12 1655Contact: linux-iio@vger.kernel.org 1656Description: 1657 A list of possible counting directions which are: 1658 - "up" : counter device is increasing. 1659 - "down": counter device is decreasing. 1660 1661What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction 1662KernelVersion: 4.12 1663Contact: linux-iio@vger.kernel.org 1664Description: 1665 Raw counter device counters direction for channel Y. 1666