Documentation/ABI/testing/sysfs-bus-iio

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