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 KernelVersion:  2.6.35
  75 Contact:        linux-iio@vger.kernel.org
  76 Description:
  77                 Raw (unscaled no bias removal etc.) voltage measurement from
  78                 channel Y. In special cases where the channel does not
  79                 correspond to externally available input one of the named
  80                 versions may be used. The number must always be specified and
  81                 unique to allow association with event codes. Units after
  82                 application of scale and offset are millivolts.
  83
  84 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
  85 KernelVersion:  2.6.35
  86 Contact:        linux-iio@vger.kernel.org
  87 Description:
  88                 Raw (unscaled) differential voltage measurement equivalent to
  89                 channel Y - channel Z where these channel numbers apply to the
  90                 physically equivalent inputs when non differential readings are
  91                 separately available. In differential only parts, then all that
  92                 is required is a consistent labeling.  Units after application
  93                 of scale and offset are millivolts.
  94
  95 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
  96 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
  97 KernelVersion:  3.17
  98 Contact:        linux-iio@vger.kernel.org
  99 Description:
 100                 Raw (unscaled no bias removal etc.) current measurement from
 101                 channel Y. In special cases where the channel does not
 102                 correspond to externally available input one of the named
 103                 versions may be used. The number must always be specified and
 104                 unique to allow association with event codes. Units after
 105                 application of scale and offset are milliamps.
 106
 107 What:           /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
 108 KernelVersion:  3.2
 109 Contact:        linux-iio@vger.kernel.org
 110 Description:
 111                 Raw capacitance measurement from channel Y. Units after
 112                 application of scale and offset are nanofarads.
 113
 114 What:           /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
 115 KernelVersion:  3.2
 116 Contact:        linux-iio@vger.kernel.org
 117 Description:
 118                 Raw differential capacitance measurement equivalent to
 119                 channel Y - channel Z where these channel numbers apply to the
 120                 physically equivalent inputs when non differential readings are
 121                 separately available. In differential only parts, then all that
 122                 is required is a consistent labeling.  Units after application
 123                 of scale and offset are nanofarads.
 124
 125 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_raw
 126 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
 127 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
 128 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
 129 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
 130 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
 131 KernelVersion:  2.6.35
 132 Contact:        linux-iio@vger.kernel.org
 133 Description:
 134                 Raw (unscaled no bias removal etc.) temperature measurement.
 135                 If an axis is specified it generally means that the temperature
 136                 sensor is associated with one part of a compound device (e.g.
 137                 a gyroscope axis). The ambient and object modifiers distinguish
 138                 between ambient (reference) and distant temperature for contact-
 139                 less measurements. Units after application of scale and offset
 140                 are milli degrees Celsius.
 141
 142 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_input
 143 KernelVersion:  2.6.38
 144 Contact:        linux-iio@vger.kernel.org
 145 Description:
 146                 Scaled temperature measurement in milli degrees Celsius.
 147
 148 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
 149 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
 150 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
 151 KernelVersion:  2.6.35
 152 Contact:        linux-iio@vger.kernel.org
 153 Description:
 154                 Acceleration in direction x, y or z (may be arbitrarily assigned
 155                 but should match other such assignments on device).
 156                 Has all of the equivalent parameters as per voltageY. Units
 157                 after application of scale and offset are m/s^2.
 158
 159 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
 160 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
 161 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
 162 KernelVersion:  2.6.35
 163 Contact:        linux-iio@vger.kernel.org
 164 Description:
 165                 Angular velocity about axis x, y or z (may be arbitrarily
 166                 assigned). Has all the equivalent parameters as per voltageY.
 167                 Units after application of scale and offset are radians per
 168                 second.
 169
 170 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
 171 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
 172 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
 173 KernelVersion:  2.6.35
 174 Contact:        linux-iio@vger.kernel.org
 175 Description:
 176                 Inclination raw reading about axis x, y or z (may be
 177                 arbitrarily assigned). Data converted by application of offset
 178                 and scale to degrees.
 179
 180 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
 181 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
 182 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
 183 KernelVersion:  2.6.35
 184 Contact:        linux-iio@vger.kernel.org
 185 Description:
 186                 Magnetic field along axis x, y or z (may be arbitrarily
 187                 assigned).  Data converted by application of offset
 188                 then scale to Gauss.
 189
 190 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
 191 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
 192 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
 193 KernelVersion:  2.6.36
 194 Contact:        linux-iio@vger.kernel.org
 195 Description:
 196                 Highest value since some reset condition.  These
 197                 attributes allow access to this and are otherwise
 198                 the direct equivalent of the <type>Y[_name]_raw attributes.
 199
 200 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
 201 KernelVersion:  2.6.36
 202 Contact:        linux-iio@vger.kernel.org
 203 Description:
 204                 A computed peak value based on the sum squared magnitude of
 205                 the underlying value in the specified directions.
 206
 207 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
 208 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
 209 KernelVersion:  3.8
 210 Contact:        linux-iio@vger.kernel.org
 211 Description:
 212                 Raw pressure measurement from channel Y. Units after
 213                 application of scale and offset are kilopascal.
 214
 215 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
 216 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_input
 217 KernelVersion:  3.8
 218 Contact:        linux-iio@vger.kernel.org
 219 Description:
 220                 Scaled pressure measurement from channel Y, in kilopascal.
 221
 222 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
 223 KernelVersion:  3.14
 224 Contact:        linux-iio@vger.kernel.org
 225 Description:
 226                 Raw humidity measurement of air. Units after application of
 227                 scale and offset are milli percent.
 228
 229 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
 230 KernelVersion:  3.14
 231 Contact:        linux-iio@vger.kernel.org
 232 Description:
 233                 Scaled humidity measurement in milli percent.
 234
 235 What:           /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
 236 KernelVersion:  3.5
 237 Contact:        linux-iio@vger.kernel.org
 238 Description:
 239                 Averaged raw measurement from channel X. The number of values
 240                 used for averaging is device specific. The converting rules for
 241                 normal raw values also applies to the averaged raw values.
 242
 243 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_offset
 244 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
 245 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
 246 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
 247 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
 248 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
 249 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
 250 What:           /sys/bus/iio/devices/iio:deviceX/in_current_offset
 251 What:           /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
 252 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_offset
 253 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
 254 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
 255 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
 256 KernelVersion:  2.6.35
 257 Contact:        linux-iio@vger.kernel.org
 258 Description:
 259                 If known for a device, offset to be added to <type>[Y]_raw prior
 260                 to scaling by <type>[Y]_scale in order to obtain value in the
 261                 <type> units as specified in <type>[Y]_raw documentation.
 262                 Not present if the offset is always 0 or unknown. If Y or
 263                 axis <x|y|z> is not present, then the offset applies to all
 264                 in channels of <type>.
 265                 May be writable if a variable offset can be applied on the
 266                 device. Note that this is different to calibbias which
 267                 is for devices (or drivers) that apply offsets to compensate
 268                 for variation between different instances of the part, typically
 269                 adjusted by using some hardware supported calibration procedure.
 270                 Calibbias is applied internally, offset is applied in userspace
 271                 to the _raw output.
 272
 273 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
 274 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
 275 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
 276 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
 277 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
 278 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
 279 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
 280 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
 281 What:           /sys/bus/iio/devices/iio:deviceX/in_current_scale
 282 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale
 283 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
 284 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
 285 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_scale
 286 What:           /sys/bus/iio/devices/iio:deviceX/in_distance_scale
 287 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_scale
 288 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
 289 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
 290 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
 291 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
 292 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
 293 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
 294 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
 295 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
 296 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
 297 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
 298 What:           /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
 299 KernelVersion:  2.6.35
 300 Contact:        linux-iio@vger.kernel.org
 301 Description:
 302                 If known for a device, scale to be applied to <type>Y[_name]_raw
 303                 post addition of <type>[Y][_name]_offset in order to obtain the
 304                 measured value in <type> units as specified in
 305                 <type>[Y][_name]_raw documentation.  If shared across all in
 306                 channels then Y and <x|y|z> are not present and the value is
 307                 called <type>[Y][_name]_scale. The peak modifier means this
 308                 value is applied to <type>Y[_name]_peak_raw values.
 309
 310 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
 311 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
 312 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
 313 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
 314 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
 315 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
 316 What:           /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
 317 What:           /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
 318 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
 319 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
 320 KernelVersion:  2.6.35
 321 Contact:        linux-iio@vger.kernel.org
 322 Description:
 323                 Hardware applied calibration offset (assumed to fix production
 324                 inaccuracies).
 325
 326 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
 327 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
 328 What            /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
 329 What            /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
 330 What            /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
 331 What            /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
 332 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
 333 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
 334 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
 335 what            /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
 336 what            /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
 337 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
 338 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
 339 KernelVersion:  2.6.35
 340 Contact:        linux-iio@vger.kernel.org
 341 Description:
 342                 Hardware applied calibration scale factor (assumed to fix
 343                 production inaccuracies).  If shared across all channels,
 344                 <type>_calibscale is used.
 345
 346 What:           /sys/bus/iio/devices/iio:deviceX/in_steps_calibheight
 347 KernelVersion:  3.19
 348 Contact:        linux-iio@vger.kernel.org
 349 Description:
 350                 Height of the user (in meters) used by some pedometers
 351                 to compute the stride length, distance, speed and activity
 352                 type.
 353
 354 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
 355 KernelVersion:  3.20
 356 Contact:        linux-iio@vger.kernel.org
 357 Description:
 358                 Weight of the user (in kg). It is needed by some pedometers
 359                 to compute the calories burnt by the user.
 360
 361 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
 362 What:           /sys/.../iio:deviceX/in_voltageX_scale_available
 363 What:           /sys/.../iio:deviceX/in_voltage-voltage_scale_available
 364 What:           /sys/.../iio:deviceX/out_voltageX_scale_available
 365 What:           /sys/.../iio:deviceX/out_altvoltageX_scale_available
 366 What:           /sys/.../iio:deviceX/in_capacitance_scale_available
 367 What:           /sys/.../iio:deviceX/in_pressure_scale_available
 368 What:           /sys/.../iio:deviceX/in_pressureY_scale_available
 369 KernelVersion:  2.6.35
 370 Contact:        linux-iio@vger.kernel.org
 371 Description:
 372                 If a discrete set of scale values is available, they
 373                 are listed in this attribute.
 374
 375 What            /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
 376 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
 377 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
 378 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
 379 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
 380 KernelVersion:  2.6.35
 381 Contact:        linux-iio@vger.kernel.org
 382 Description:
 383                 Hardware applied gain factor. If shared across all channels,
 384                 <type>_hardwaregain is used.
 385
 386 What:           /sys/.../in_accel_filter_low_pass_3db_frequency
 387 What:           /sys/.../in_magn_filter_low_pass_3db_frequency
 388 What:           /sys/.../in_anglvel_filter_low_pass_3db_frequency
 389 KernelVersion:  3.2
 390 Contact:        linux-iio@vger.kernel.org
 391 Description:
 392                 If a known or controllable low pass filter is applied
 393                 to the underlying data channel, then this parameter
 394                 gives the 3dB frequency of the filter in Hz.
 395
 396 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
 397 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
 398 KernelVersion:  2.6.37
 399 Contact:        linux-iio@vger.kernel.org
 400 Description:
 401                 Raw (unscaled, no bias etc.) output voltage for
 402                 channel Y.  The number must always be specified and
 403                 unique if the output corresponds to a single channel.
 404                 While DAC like devices typically use out_voltage,
 405                 a continuous frequency generating device, such as
 406                 a DDS or PLL should use out_altvoltage.
 407
 408 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
 409 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
 410 KernelVersion:  2.6.37
 411 Contact:        linux-iio@vger.kernel.org
 412 Description:
 413                 Raw (unscaled, no bias etc.) output voltage for an aggregate of
 414                 channel Y, channel Z, etc.  This interface is available in cases
 415                 where a single output sets the value for multiple channels
 416                 simultaneously.
 417
 418 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
 419 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
 420 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
 421 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
 422 KernelVersion:  2.6.38
 423 Contact:        linux-iio@vger.kernel.org
 424 Description:
 425                 Specifies the output powerdown mode.
 426                 DAC output stage is disconnected from the amplifier and
 427                 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
 428                 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 429                 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 430                 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
 431                 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
 432                 three_state: left floating.
 433                 For a list of available output power down options read
 434                 outX_powerdown_mode_available. If Y is not present the
 435                 mode is shared across all outputs.
 436
 437 What:           /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
 438 What:           /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
 439 What:           /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
 440 What:           /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
 441 KernelVersion:  2.6.38
 442 Contact:        linux-iio@vger.kernel.org
 443 Description:
 444                 Lists all available output power down modes.
 445                 If Y is not present the mode is shared across all outputs.
 446
 447 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
 448 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
 449 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
 450 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
 451 KernelVersion:  2.6.38
 452 Contact:        linux-iio@vger.kernel.org
 453 Description:
 454                 Writing 1 causes output Y to enter the power down mode specified
 455                 by the corresponding outY_powerdown_mode. DAC output stage is
 456                 disconnected from the amplifier. Clearing returns to normal
 457                 operation. Y may be suppressed if all outputs are controlled
 458                 together.
 459
 460 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
 461 KernelVersion:  3.4.0
 462 Contact:        linux-iio@vger.kernel.org
 463 Description:
 464                 Output frequency for channel Y in Hz. The number must always be
 465                 specified and unique if the output corresponds to a single
 466                 channel.
 467
 468 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
 469 KernelVersion:  3.4.0
 470 Contact:        linux-iio@vger.kernel.org
 471 Description:
 472                 Phase in radians of one frequency/clock output Y
 473                 (out_altvoltageY) relative to another frequency/clock output
 474                 (out_altvoltageZ) of the device X. The number must always be
 475                 specified and unique if the output corresponds to a single
 476                 channel.
 477
 478 What:           /sys/bus/iio/devices/iio:deviceX/events
 479 KernelVersion:  2.6.35
 480 Contact:        linux-iio@vger.kernel.org
 481 Description:
 482                 Configuration of which hardware generated events are passed up
 483                 to user-space.
 484
 485 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
 486 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
 487 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
 488 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
 489 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
 490 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
 491 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
 492 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
 493 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
 494 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
 495 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
 496 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
 497 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
 498 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
 499 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
 500 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
 501 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
 502 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
 503 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
 504 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
 505 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
 506 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
 507 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
 508 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
 509 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
 510 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
 511 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
 512 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
 513 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
 514 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
 515 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
 516 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
 517 KernelVersion:  2.6.37
 518 Contact:        linux-iio@vger.kernel.org
 519 Description:
 520                 Event generated when channel passes a threshold in the specified
 521                 (_rising|_falling) direction. If the direction is not specified,
 522                 then either the device will report an event which ever direction
 523                 a single threshold value is passed in (e.g.
 524                 <type>[Y][_name]_<raw|input>_thresh_value) or
 525                 <type>[Y][_name]_<raw|input>_thresh_rising_value and
 526                 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
 527                 different values, but the device can only enable both thresholds
 528                 or neither.
 529                 Note the driver will assume the last p events requested are
 530                 to be enabled where p is how many it supports (which may vary
 531                 depending on the exact set requested. So if you want to be
 532                 sure you have set what you think you have, check the contents of
 533                 these attributes after everything is configured. Drivers may
 534                 have to buffer any parameters so that they are consistent when
 535                 a given event type is enabled at a future point (and not those for
 536                 whatever event was previously enabled).
 537
 538 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
 539 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
 540 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
 541 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
 542 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
 543 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
 544 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
 545 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
 546 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
 547 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
 548 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
 549 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
 550 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
 551 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
 552 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
 553 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
 554 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
 555 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
 556 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
 557 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
 558 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
 559 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
 560 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
 561 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
 562 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
 563 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
 564 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
 565 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
 566 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
 567 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
 568 What:           /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
 569 What:           /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
 570 KernelVersion:  2.6.37
 571 Contact:        linux-iio@vger.kernel.org
 572 Description:
 573                 Event generated when channel passes a threshold on the rate of
 574                 change (1st differential) in the specified (_rising|_falling)
 575                 direction. If the direction is not specified, then either the
 576                 device will report an event which ever direction a single
 577                 threshold value is passed in (e.g.
 578                 <type>[Y][_name]_<raw|input>_roc_value) or
 579                 <type>[Y][_name]_<raw|input>_roc_rising_value and
 580                 <type>[Y][_name]_<raw|input>_roc_falling_value may take
 581                 different values, but the device can only enable both rate of
 582                 change thresholds or neither.
 583                 Note the driver will assume the last p events requested are
 584                 to be enabled where p is however many it supports (which may
 585                 vary depending on the exact set requested. So if you want to be
 586                 sure you have set what you think you have, check the contents of
 587                 these attributes after everything is configured. Drivers may
 588                 have to buffer any parameters so that they are consistent when
 589                 a given event type is enabled a future point (and not those for
 590                 whatever event was previously enabled).
 591
 592 What:           /sys/.../events/in_accel_x_raw_thresh_rising_value
 593 What:           /sys/.../events/in_accel_x_raw_thresh_falling_value
 594 What:           /sys/.../events/in_accel_y_raw_thresh_rising_value
 595 What:           /sys/.../events/in_accel_y_raw_thresh_falling_value
 596 What:           /sys/.../events/in_accel_z_raw_thresh_rising_value
 597 What:           /sys/.../events/in_accel_z_raw_thresh_falling_value
 598 What:           /sys/.../events/in_anglvel_x_raw_thresh_rising_value
 599 What:           /sys/.../events/in_anglvel_x_raw_thresh_falling_value
 600 What:           /sys/.../events/in_anglvel_y_raw_thresh_rising_value
 601 What:           /sys/.../events/in_anglvel_y_raw_thresh_falling_value
 602 What:           /sys/.../events/in_anglvel_z_raw_thresh_rising_value
 603 What:           /sys/.../events/in_anglvel_z_raw_thresh_falling_value
 604 What:           /sys/.../events/in_magn_x_raw_thresh_rising_value
 605 What:           /sys/.../events/in_magn_x_raw_thresh_falling_value
 606 What:           /sys/.../events/in_magn_y_raw_thresh_rising_value
 607 What:           /sys/.../events/in_magn_y_raw_thresh_falling_value
 608 What:           /sys/.../events/in_magn_z_raw_thresh_rising_value
 609 What:           /sys/.../events/in_magn_z_raw_thresh_falling_value
 610 What:           /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
 611 What:           /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
 612 What:           /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
 613 What:           /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
 614 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
 615 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
 616 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
 617 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
 618 What:           /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
 619 What:           /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
 620 What:           /sys/.../events/in_voltageY_raw_thresh_rising_value
 621 What:           /sys/.../events/in_voltageY_raw_thresh_falling_value
 622 What:           /sys/.../events/in_tempY_raw_thresh_rising_value
 623 What:           /sys/.../events/in_tempY_raw_thresh_falling_value
 624 What:           /sys/.../events/in_illuminance0_thresh_falling_value
 625 what:           /sys/.../events/in_illuminance0_thresh_rising_value
 626 what:           /sys/.../events/in_proximity0_thresh_falling_value
 627 what:           /sys/.../events/in_proximity0_thresh_rising_value
 628 KernelVersion:  2.6.37
 629 Contact:        linux-iio@vger.kernel.org
 630 Description:
 631                 Specifies the value of threshold that the device is comparing
 632                 against for the events enabled by
 633                 <type>Y[_name]_thresh[_rising|falling]_en.
 634                 If separate attributes exist for the two directions, but
 635                 direction is not specified for this attribute, then a single
 636                 threshold value applies to both directions.
 637                 The raw or input element of the name indicates whether the
 638                 value is in raw device units or in processed units (as _raw
 639                 and _input do on sysfs direct channel read attributes).
 640
 641 What:           /sys/.../events/in_accel_x_thresh_rising_hysteresis
 642 What:           /sys/.../events/in_accel_x_thresh_falling_hysteresis
 643 What:           /sys/.../events/in_accel_x_thresh_either_hysteresis
 644 What:           /sys/.../events/in_accel_y_thresh_rising_hysteresis
 645 What:           /sys/.../events/in_accel_y_thresh_falling_hysteresis
 646 What:           /sys/.../events/in_accel_y_thresh_either_hysteresis
 647 What:           /sys/.../events/in_accel_z_thresh_rising_hysteresis
 648 What:           /sys/.../events/in_accel_z_thresh_falling_hysteresis
 649 What:           /sys/.../events/in_accel_z_thresh_either_hysteresis
 650 What:           /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
 651 What:           /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
 652 What:           /sys/.../events/in_anglvel_x_thresh_either_hysteresis
 653 What:           /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
 654 What:           /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
 655 What:           /sys/.../events/in_anglvel_y_thresh_either_hysteresis
 656 What:           /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
 657 What:           /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
 658 What:           /sys/.../events/in_anglvel_z_thresh_either_hysteresis
 659 What:           /sys/.../events/in_magn_x_thresh_rising_hysteresis
 660 What:           /sys/.../events/in_magn_x_thresh_falling_hysteresis
 661 What:           /sys/.../events/in_magn_x_thresh_either_hysteresis
 662 What:           /sys/.../events/in_magn_y_thresh_rising_hysteresis
 663 What:           /sys/.../events/in_magn_y_thresh_falling_hysteresis
 664 What:           /sys/.../events/in_magn_y_thresh_either_hysteresis
 665 What:           /sys/.../events/in_magn_z_thresh_rising_hysteresis
 666 What:           /sys/.../events/in_magn_z_thresh_falling_hysteresis
 667 What:           /sys/.../events/in_magn_z_thresh_either_hysteresis
 668 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
 669 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
 670 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
 671 What:           /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
 672 What:           /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
 673 What:           /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
 674 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
 675 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
 676 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
 677 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
 678 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
 679 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
 680 What:           /sys/.../events/in_voltageY_thresh_rising_hysteresis
 681 What:           /sys/.../events/in_voltageY_thresh_falling_hysteresis
 682 What:           /sys/.../events/in_voltageY_thresh_either_hysteresis
 683 What:           /sys/.../events/in_tempY_thresh_rising_hysteresis
 684 What:           /sys/.../events/in_tempY_thresh_falling_hysteresis
 685 What:           /sys/.../events/in_tempY_thresh_either_hysteresis
 686 What:           /sys/.../events/in_illuminance0_thresh_falling_hysteresis
 687 what:           /sys/.../events/in_illuminance0_thresh_rising_hysteresis
 688 what:           /sys/.../events/in_illuminance0_thresh_either_hysteresis
 689 what:           /sys/.../events/in_proximity0_thresh_falling_hysteresis
 690 what:           /sys/.../events/in_proximity0_thresh_rising_hysteresis
 691 what:           /sys/.../events/in_proximity0_thresh_either_hysteresis
 692 KernelVersion:  3.13
 693 Contact:        linux-iio@vger.kernel.org
 694 Description:
 695                 Specifies the hysteresis of threshold that the device is comparing
 696                 against for the events enabled by
 697                 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
 698                 If separate attributes exist for the two directions, but
 699                 direction is not specified for this attribute, then a single
 700                 hysteresis value applies to both directions.
 701                 For falling events the hysteresis is added to the _value attribute for
 702                 this event to get the upper threshold for when the event goes back to
 703                 normal, for rising events the hysteresis is subtracted from the _value
 704                 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
 705                 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
 706                 will get activated once in_voltage0_raw goes above 1200 and will become
 707                 deactived again once the value falls below 1150.
 708
 709 What:           /sys/.../events/in_accel_x_raw_roc_rising_value
 710 What:           /sys/.../events/in_accel_x_raw_roc_falling_value
 711 What:           /sys/.../events/in_accel_y_raw_roc_rising_value
 712 What:           /sys/.../events/in_accel_y_raw_roc_falling_value
 713 What:           /sys/.../events/in_accel_z_raw_roc_rising_value
 714 What:           /sys/.../events/in_accel_z_raw_roc_falling_value
 715 What:           /sys/.../events/in_anglvel_x_raw_roc_rising_value
 716 What:           /sys/.../events/in_anglvel_x_raw_roc_falling_value
 717 What:           /sys/.../events/in_anglvel_y_raw_roc_rising_value
 718 What:           /sys/.../events/in_anglvel_y_raw_roc_falling_value
 719 What:           /sys/.../events/in_anglvel_z_raw_roc_rising_value
 720 What:           /sys/.../events/in_anglvel_z_raw_roc_falling_value
 721 What:           /sys/.../events/in_magn_x_raw_roc_rising_value
 722 What:           /sys/.../events/in_magn_x_raw_roc_falling_value
 723 What:           /sys/.../events/in_magn_y_raw_roc_rising_value
 724 What:           /sys/.../events/in_magn_y_raw_roc_falling_value
 725 What:           /sys/.../events/in_magn_z_raw_roc_rising_value
 726 What:           /sys/.../events/in_magn_z_raw_roc_falling_value
 727 What:           /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
 728 What:           /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
 729 What:           /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
 730 What:           /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
 731 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
 732 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
 733 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
 734 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
 735 What:           /sys/.../events/in_voltageY_supply_raw_roc_rising_value
 736 What:           /sys/.../events/in_voltageY_supply_raw_roc_falling_value
 737 What:           /sys/.../events/in_voltageY_raw_roc_rising_value
 738 What:           /sys/.../events/in_voltageY_raw_roc_falling_value
 739 What:           /sys/.../events/in_tempY_raw_roc_rising_value
 740 What:           /sys/.../events/in_tempY_raw_roc_falling_value
 741 KernelVersion:  2.6.37
 742 Contact:        linux-iio@vger.kernel.org
 743 Description:
 744                 Specifies the value of rate of change threshold that the
 745                 device is comparing against for the events enabled by
 746                 <type>[Y][_name]_roc[_rising|falling]_en.
 747                 If separate attributes exist for the two directions,
 748                 but direction is not specified for this attribute,
 749                 then a single threshold value applies to both directions.
 750                 The raw or input element of the name indicates whether the
 751                 value is in raw device units or in processed units (as _raw
 752                 and _input do on sysfs direct channel read attributes).
 753
 754 What:           /sys/.../events/in_accel_x_thresh_rising_period
 755 What:           /sys/.../events/in_accel_x_thresh_falling_period
 756 hat:            /sys/.../events/in_accel_x_roc_rising_period
 757 What:           /sys/.../events/in_accel_x_roc_falling_period
 758 What:           /sys/.../events/in_accel_y_thresh_rising_period
 759 What:           /sys/.../events/in_accel_y_thresh_falling_period
 760 What:           /sys/.../events/in_accel_y_roc_rising_period
 761 What:           /sys/.../events/in_accel_y_roc_falling_period
 762 What:           /sys/.../events/in_accel_z_thresh_rising_period
 763 What:           /sys/.../events/in_accel_z_thresh_falling_period
 764 What:           /sys/.../events/in_accel_z_roc_rising_period
 765 What:           /sys/.../events/in_accel_z_roc_falling_period
 766 What:           /sys/.../events/in_anglvel_x_thresh_rising_period
 767 What:           /sys/.../events/in_anglvel_x_thresh_falling_period
 768 What:           /sys/.../events/in_anglvel_x_roc_rising_period
 769 What:           /sys/.../events/in_anglvel_x_roc_falling_period
 770 What:           /sys/.../events/in_anglvel_y_thresh_rising_period
 771 What:           /sys/.../events/in_anglvel_y_thresh_falling_period
 772 What:           /sys/.../events/in_anglvel_y_roc_rising_period
 773 What:           /sys/.../events/in_anglvel_y_roc_falling_period
 774 What:           /sys/.../events/in_anglvel_z_thresh_rising_period
 775 What:           /sys/.../events/in_anglvel_z_thresh_falling_period
 776 What:           /sys/.../events/in_anglvel_z_roc_rising_period
 777 What:           /sys/.../events/in_anglvel_z_roc_falling_period
 778 What:           /sys/.../events/in_magn_x_thresh_rising_period
 779 What:           /sys/.../events/in_magn_x_thresh_falling_period
 780 What:           /sys/.../events/in_magn_x_roc_rising_period
 781 What:           /sys/.../events/in_magn_x_roc_falling_period
 782 What:           /sys/.../events/in_magn_y_thresh_rising_period
 783 What:           /sys/.../events/in_magn_y_thresh_falling_period
 784 What:           /sys/.../events/in_magn_y_roc_rising_period
 785 What:           /sys/.../events/in_magn_y_roc_falling_period
 786 What:           /sys/.../events/in_magn_z_thresh_rising_period
 787 What:           /sys/.../events/in_magn_z_thresh_falling_period
 788 What:           /sys/.../events/in_magn_z_roc_rising_period
 789 What:           /sys/.../events/in_magn_z_roc_falling_period
 790 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
 791 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
 792 What:           /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
 793 What:           /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
 794 What:           /sys/.../events/in_rot_from_north_true_thresh_rising_period
 795 What:           /sys/.../events/in_rot_from_north_true_thresh_falling_period
 796 What:           /sys/.../events/in_rot_from_north_true_roc_rising_period
 797 What:           /sys/.../events/in_rot_from_north_true_roc_falling_period
 798 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
 799 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
 800 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
 801 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
 802 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
 803 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
 804 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
 805 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
 806 What:           /sys/.../events/in_voltageY_supply_thresh_rising_period
 807 What:           /sys/.../events/in_voltageY_supply_thresh_falling_period
 808 What:           /sys/.../events/in_voltageY_supply_roc_rising_period
 809 What:           /sys/.../events/in_voltageY_supply_roc_falling_period
 810 What:           /sys/.../events/in_voltageY_thresh_rising_period
 811 What:           /sys/.../events/in_voltageY_thresh_falling_period
 812 What:           /sys/.../events/in_voltageY_roc_rising_period
 813 What:           /sys/.../events/in_voltageY_roc_falling_period
 814 What:           /sys/.../events/in_tempY_thresh_rising_period
 815 What:           /sys/.../events/in_tempY_thresh_falling_period
 816 What:           /sys/.../events/in_tempY_roc_rising_period
 817 What:           /sys/.../events/in_tempY_roc_falling_period
 818 What:           /sys/.../events/in_accel_x&y&z_mag_falling_period
 819 What:           /sys/.../events/in_intensity0_thresh_period
 820 What:           /sys/.../events/in_proximity0_thresh_period
 821 KernelVersion:  2.6.37
 822 Contact:        linux-iio@vger.kernel.org
 823 Description:
 824                 Period of time (in seconds) for which the condition must be
 825                 met before an event is generated. If direction is not
 826                 specified then this period applies to both directions.
 827
 828 What:           /sys/.../events/in_activity_still_thresh_rising_en
 829 What:           /sys/.../events/in_activity_still_thresh_falling_en
 830 What:           /sys/.../events/in_activity_walking_thresh_rising_en
 831 What:           /sys/.../events/in_activity_walking_thresh_falling_en
 832 What:           /sys/.../events/in_activity_jogging_thresh_rising_en
 833 What:           /sys/.../events/in_activity_jogging_thresh_falling_en
 834 What:           /sys/.../events/in_activity_running_thresh_rising_en
 835 What:           /sys/.../events/in_activity_running_thresh_falling_en
 836 KernelVersion:  3.19
 837 Contact:        linux-iio@vger.kernel.org
 838 Description:
 839                 Enables or disables activitity events. Depending on direction
 840                 an event is generated when sensor ENTERS or LEAVES a given state.
 841
 842 What:           /sys/.../events/in_activity_still_thresh_rising_value
 843 What:           /sys/.../events/in_activity_still_thresh_falling_value
 844 What:           /sys/.../events/in_activity_walking_thresh_rising_value
 845 What:           /sys/.../events/in_activity_walking_thresh_falling_value
 846 What:           /sys/.../events/in_activity_jogging_thresh_rising_value
 847 What:           /sys/.../events/in_activity_jogging_thresh_falling_value
 848 What:           /sys/.../events/in_activity_running_thresh_rising_value
 849 What:           /sys/.../events/in_activity_running_thresh_falling_value
 850 KernelVersion:  3.19
 851 Contact:        linux-iio@vger.kernel.org
 852 Description:
 853                 Confidence value (in units as percentage) to be used
 854                 for deciding when an event should be generated. E.g for
 855                 running: If the confidence value reported by the sensor
 856                 is greater than in_activity_running_thresh_rising_value
 857                 then the sensor ENTERS running state. Conversely, if the
 858                 confidence value reported by the sensor is lower than
 859                 in_activity_running_thresh_falling_value then the sensor
 860                 is LEAVING running state.
 861
 862 What:           /sys/.../iio:deviceX/events/in_accel_mag_en
 863 What:           /sys/.../iio:deviceX/events/in_accel_mag_rising_en
 864 What:           /sys/.../iio:deviceX/events/in_accel_mag_falling_en
 865 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_en
 866 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
 867 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
 868 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_en
 869 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
 870 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
 871 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_en
 872 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
 873 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
 874 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
 875 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
 876 KernelVersion:  2.6.37
 877 Contact:        linux-iio@vger.kernel.org
 878 Description:
 879                 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
 880                 magnitude of the channel is compared to the threshold, not its
 881                 signed value.
 882
 883 What:           /sys/.../events/in_accel_raw_mag_value
 884 What:           /sys/.../events/in_accel_x_raw_mag_rising_value
 885 What:           /sys/.../events/in_accel_y_raw_mag_rising_value
 886 What:           /sys/.../events/in_accel_z_raw_mag_rising_value
 887 KernelVersion:  2.6.37
 888 Contact:        linux-iio@vger.kernel.org
 889 Description:
 890                 The value to which the magnitude of the channel is compared. If
 891                 number or direction is not specified, applies to all channels of
 892                 this type.
 893
 894 What:           /sys/.../events/in_steps_change_en
 895 KernelVersion:  3.20
 896 Contact:        linux-iio@vger.kernel.org
 897 Description:
 898                 Event generated when channel passes a threshold on the absolute
 899                 change in value. E.g. for steps: a step change event is
 900                 generated each time the user takes N steps, where N is set using
 901                 in_steps_change_value.
 902
 903 What:           /sys/.../events/in_steps_change_value
 904 KernelVersion:  3.20
 905 Contact:        linux-iio@vger.kernel.org
 906 Description:
 907                 Specifies the value of change threshold that the
 908                 device is comparing against for the events enabled by
 909                 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
 910                 if set to 3, a step change event will be generated every 3
 911                 steps.
 912
 913 What:           /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
 914 KernelVersion:  2.6.35
 915 Contact:        linux-iio@vger.kernel.org
 916 Description:
 917                 The name of the trigger source being used, as per string given
 918                 in /sys/class/iio/triggerY/name.
 919
 920 What:           /sys/bus/iio/devices/iio:deviceX/buffer/length
 921 KernelVersion:  2.6.35
 922 Contact:        linux-iio@vger.kernel.org
 923 Description:
 924                 Number of scans contained by the buffer.
 925
 926 What:           /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
 927 KernelVersion:  2.6.37
 928 Contact:        linux-iio@vger.kernel.org
 929 Description:
 930                 Bytes per scan.  Due to alignment fun, the scan may be larger
 931                 than implied directly by the scan_element parameters.
 932
 933 What:           /sys/bus/iio/devices/iio:deviceX/buffer/enable
 934 KernelVersion:  2.6.35
 935 Contact:        linux-iio@vger.kernel.org
 936 Description:
 937                 Actually start the buffer capture up.  Will start trigger
 938                 if first device and appropriate.
 939
 940 What:           /sys/bus/iio/devices/iio:deviceX/scan_elements
 941 KernelVersion:  2.6.37
 942 Contact:        linux-iio@vger.kernel.org
 943 Description:
 944                 Directory containing interfaces for elements that will be
 945                 captured for a single triggered sample set in the buffer.
 946
 947 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_en
 948 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_en
 949 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_en
 950 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
 951 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
 952 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
 953 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_en
 954 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_en
 955 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_en
 956 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
 957 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
 958 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
 959 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
 960 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_en
 961 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
 962 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_en
 963 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
 964 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_en
 965 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_en
 966 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_en
 967 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_en
 968 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
 969 KernelVersion:  2.6.37
 970 Contact:        linux-iio@vger.kernel.org
 971 Description:
 972                 Scan element control for triggered data capture.
 973
 974 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type
 975 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_type
 976 What:           /sys/.../iio:deviceX/scan_elements/in_magn_type
 977 What:           /sys/.../iio:deviceX/scan_elements/in_incli_type
 978 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_type
 979 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_type
 980 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
 981 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_type
 982 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_type
 983 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_type
 984 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
 985 KernelVersion:  2.6.37
 986 Contact:        linux-iio@vger.kernel.org
 987 Description:
 988                 Description of the scan element data storage within the buffer
 989                 and hence the form in which it is read from user-space.
 990                 Form is [be|le]:[s|u]bits/storagebits[>>shift].
 991                 be or le specifies big or little endian. s or u specifies if
 992                 signed (2's complement) or unsigned. bits is the number of bits
 993                 of data and storagebits is the space (after padding) that it
 994                 occupies in the buffer. shift if specified, is the shift that
 995                 needs to be applied prior to masking out unused bits. Some
 996                 devices put their data in the middle of the transferred elements
 997                 with additional information on both sides.  Note that some
 998                 devices will have additional information in the unused bits
 999                 so to get a clean value, the bits value must be used to mask
1000                 the buffer output value appropriately.  The storagebits value
1001                 also specifies the data alignment.  So s48/64>>2 will be a
1002                 signed 48 bit integer stored in a 64 bit location aligned to
1003                 a 64 bit boundary. To obtain the clean value, shift right 2
1004                 and apply a mask to zero the top 16 bits of the result.
1005                 For other storage combinations this attribute will be extended
1006                 appropriately.
1007
1008 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1009 KernelVersion:  2.6.37
1010 Contact:        linux-iio@vger.kernel.org
1011 Description:
1012                 If the type parameter can take one of a small set of values,
1013                 this attribute lists them.
1014
1015 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1016 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1017 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1018 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1019 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1020 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1021 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1022 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1023 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1024 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1025 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1026 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1027 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1028 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1029 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1030 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1031 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1032 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1033 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1034 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_index
1035 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1036 KernelVersion:  2.6.37
1037 Contact:        linux-iio@vger.kernel.org
1038 Description:
1039                 A single positive integer specifying the position of this
1040                 scan element in the buffer. Note these are not dependent on
1041                 what is enabled and may not be contiguous. Thus for user-space
1042                 to establish the full layout these must be used in conjunction
1043                 with all _en attributes to establish which channels are present,
1044                 and the relevant _type attributes to establish the data storage
1045                 format.
1046
1047 What:           /sys/.../iio:deviceX/in_activity_still_input
1048 What:           /sys/.../iio:deviceX/in_activity_walking_input
1049 What:           /sys/.../iio:deviceX/in_activity_jogging_input
1050 What:           /sys/.../iio:deviceX/in_activity_running_input
1051 KernelVersion:  3.19
1052 Contact:        linux-iio@vger.kernel.org
1053 Description:
1054                 This attribute is used to read the confidence for an activity
1055                 expressed in units as percentage.
1056
1057 What:           /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1058 KernelVersion:  2.6.38
1059 Contact:        linux-iio@vger.kernel.org
1060 Description:
1061                 This attribute is used to read the amount of quadrature error
1062                 present in the device at a given time.
1063
1064 What:           /sys/.../iio:deviceX/in_accelX_power_mode
1065 KernelVersion:  3.11
1066 Contact:        linux-iio@vger.kernel.org
1067 Description:
1068                 Specifies the chip power mode.
1069                 low_noise: reduce noise level from ADC,
1070                 low_power: enable low current consumption.
1071                 For a list of available output power modes read
1072                 in_accel_power_mode_available.
1073
1074 What:           /sys/.../iio:deviceX/in_energy_input
1075 What:           /sys/.../iio:deviceX/in_energy_raw
1076 KernelVersion:  3.20
1077 Contact:        linux-iio@vger.kernel.org
1078 Description:
1079                 This attribute is used to read the energy value reported by the
1080                 device (e.g.: human activity sensors report energy burnt by the
1081                 user). Units after application of scale are Joules.
1082
1083 What:           /sys/.../iio:deviceX/in_distance_input
1084 What:           /sys/.../iio:deviceX/in_distance_raw
1085 KernelVersion:  3.20
1086 Contact:        linux-iio@vger.kernel.org
1087 Description:
1088                 This attribute is used to read the distance covered by the user
1089                 since the last reboot while activated. Units after application
1090                 of scale are meters.
1091
1092 What:           /sys/bus/iio/devices/iio:deviceX/store_eeprom
1093 KernelVersion:  3.4.0
1094 Contact:        linux-iio@vger.kernel.org
1095 Description:
1096                 Writing '1' stores the current device configuration into
1097                 on-chip EEPROM. After power-up or chip reset the device will
1098                 automatically load the saved configuration.
1099
1100 What:           /sys/.../iio:deviceX/in_proximity_raw
1101 What:           /sys/.../iio:deviceX/in_proximity_input
1102 What:           /sys/.../iio:deviceX/in_proximityY_raw
1103 KernelVersion:  3.4
1104 Contact:        linux-iio@vger.kernel.org
1105 Description:
1106                 Proximity measurement indicating that some
1107                 object is near the sensor, usually be observing
1108                 reflectivity of infrared or ultrasound emitted.
1109                 Often these sensors are unit less and as such conversion
1110                 to SI units is not possible.  Where it is, the units should
1111                 be meters.  If such a conversion is not possible, the reported
1112                 values should behave in the same way as a distance, i.e. lower
1113                 values indicate something is closer to the sensor.
1114
1115 What:           /sys/.../iio:deviceX/in_illuminanceY_input
1116 What:           /sys/.../iio:deviceX/in_illuminanceY_raw
1117 What:           /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1118 KernelVersion:  3.4
1119 Contact:        linux-iio@vger.kernel.org
1120 Description:
1121                 Illuminance measurement, units after application of scale
1122                 and offset are lux.
1123
1124 What:           /sys/.../iio:deviceX/in_intensityY_raw
1125 What:           /sys/.../iio:deviceX/in_intensityY_ir_raw
1126 What:           /sys/.../iio:deviceX/in_intensityY_both_raw
1127 KernelVersion:  3.4
1128 Contact:        linux-iio@vger.kernel.org
1129 Description:
1130                 Unit-less light intensity. Modifiers both and ir indicate
1131                 that measurements contains visible and infrared light
1132                 components or just infrared light, respectively.
1133
1134 What:           /sys/.../iio:deviceX/in_intensity_red_integration_time
1135 What:           /sys/.../iio:deviceX/in_intensity_green_integration_time
1136 What:           /sys/.../iio:deviceX/in_intensity_blue_integration_time
1137 What:           /sys/.../iio:deviceX/in_intensity_clear_integration_time
1138 What:           /sys/.../iio:deviceX/in_illuminance_integration_time
1139 KernelVersion:  3.12
1140 Contact:        linux-iio@vger.kernel.org
1141 Description:
1142                 This attribute is used to get/set the integration time in
1143                 seconds.
1144
1145 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1146 KernelVersion:  3.15
1147 Contact:        linux-iio@vger.kernel.org
1148 Description:
1149                 Raw value of quaternion components using a format
1150                 x y z w. Here x, y, and z component represents the axis about
1151                 which a rotation will occur and w component represents the
1152                 amount of rotation.
1153
1154 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1155 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1156 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1157 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1158 KernelVersion:  3.15
1159 Contact:        linux-iio@vger.kernel.org
1160 Description:
1161                 Raw value of rotation from true/magnetic north measured with
1162                 or without compensation from tilt sensors.
1163
1164 What:           /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1165 KernelVersion:  3.18
1166 Contact:        linux-iio@vger.kernel.org
1167 Description:
1168                 Raw current measurement from channel X. Units are in milliamps
1169                 after application of scale and offset. If no offset or scale is
1170                 present, output should be considered as processed with the
1171                 unit in milliamps.
1172
1173 What:           /sys/.../iio:deviceX/in_steps_en
1174 KernelVersion:  3.19
1175 Contact:        linux-iio@vger.kernel.org
1176 Description:
1177                 Activates the step counter. After activation, the number of steps
1178                 taken by the user will be counted in hardware and exported through
1179                 in_steps_input.
1180
1181 What:           /sys/.../iio:deviceX/in_steps_input
1182 KernelVersion:  3.19
1183 Contact:        linux-iio@vger.kernel.org
1184 Description:
1185                 This attribute is used to read the number of steps taken by the user
1186                 since the last reboot while activated.
1187
1188 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1189 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1190 KernelVersion:  3.19
1191 Contact:        linux-iio@vger.kernel.org
1192 Description:
1193                 This attribute is used to read the current speed value of the
1194                 user (which is the norm or magnitude of the velocity vector).
1195                 Units after application of scale are m/s.
1196
1197 What:           /sys/.../iio:deviceX/in_steps_debounce_count
1198 KernelVersion:  3.20
1199 Contact:        linux-iio@vger.kernel.org
1200 Description:
1201                 Specifies the number of steps that must occur within
1202                 in_steps_filter_debounce_time for the pedometer to decide the
1203                 consumer is making steps.
1204
1205 What:           /sys/.../iio:deviceX/in_steps_debounce_time
1206 KernelVersion:  3.20
1207 Contact:        linux-iio@vger.kernel.org
1208 Description:
1209                 Specifies number of seconds in which we compute the steps
1210                 that occur in order to decide if the consumer is making steps.