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