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_capacitanceY_raw
  96 KernelVersion:  3.2
  97 Contact:        linux-iio@vger.kernel.org
  98 Description:
  99                 Raw capacitance measurement from channel Y. Units after
 100                 application of scale and offset are nanofarads.
 101
 102 What:           /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
 103 KernelVersion:  3.2
 104 Contact:        linux-iio@vger.kernel.org
 105 Description:
 106                 Raw differential capacitance measurement equivalent to
 107                 channel Y - channel Z where these channel numbers apply to the
 108                 physically equivalent inputs when non differential readings are
 109                 separately available. In differential only parts, then all that
 110                 is required is a consistent labeling.  Units after application
 111                 of scale and offset are nanofarads.
 112
 113 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_raw
 114 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
 115 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
 116 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
 117 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw
 118 KernelVersion:  2.6.35
 119 Contact:        linux-iio@vger.kernel.org
 120 Description:
 121                 Raw (unscaled no bias removal etc.) temperature measurement.
 122                 If an axis is specified it generally means that the temperature
 123                 sensor is associated with one part of a compound device (e.g.
 124                 a gyroscope axis). Units after application of scale and offset
 125                 are milli degrees Celsius.
 126
 127 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_input
 128 KernelVersion:  2.6.38
 129 Contact:        linux-iio@vger.kernel.org
 130 Description:
 131                 Scaled temperature measurement in milli degrees Celsius.
 132
 133 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
 134 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
 135 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
 136 KernelVersion:  2.6.35
 137 Contact:        linux-iio@vger.kernel.org
 138 Description:
 139                 Acceleration in direction x, y or z (may be arbitrarily assigned
 140                 but should match other such assignments on device).
 141                 Has all of the equivalent parameters as per voltageY. Units
 142                 after application of scale and offset are m/s^2.
 143
 144 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
 145 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
 146 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
 147 KernelVersion:  2.6.35
 148 Contact:        linux-iio@vger.kernel.org
 149 Description:
 150                 Angular velocity about axis x, y or z (may be arbitrarily
 151                 assigned). Has all the equivalent parameters as per voltageY.
 152                 Units after application of scale and offset are radians per
 153                 second.
 154
 155 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
 156 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
 157 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
 158 KernelVersion:  2.6.35
 159 Contact:        linux-iio@vger.kernel.org
 160 Description:
 161                 Inclination raw reading about axis x, y or z (may be
 162                 arbitrarily assigned). Data converted by application of offset
 163                 and scale to degrees.
 164
 165 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
 166 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
 167 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
 168 KernelVersion:  2.6.35
 169 Contact:        linux-iio@vger.kernel.org
 170 Description:
 171                 Magnetic field along axis x, y or z (may be arbitrarily
 172                 assigned).  Data converted by application of offset
 173                 then scale to Gauss.
 174
 175 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
 176 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
 177 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
 178 KernelVersion:  2.6.36
 179 Contact:        linux-iio@vger.kernel.org
 180 Description:
 181                 Highest value since some reset condition.  These
 182                 attributes allow access to this and are otherwise
 183                 the direct equivalent of the <type>Y[_name]_raw attributes.
 184
 185 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
 186 KernelVersion:  2.6.36
 187 Contact:        linux-iio@vger.kernel.org
 188 Description:
 189                 A computed peak value based on the sum squared magnitude of
 190                 the underlying value in the specified directions.
 191
 192 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
 193 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
 194 KernelVersion:  3.8
 195 Contact:        linux-iio@vger.kernel.org
 196 Description:
 197                 Raw pressure measurement from channel Y. Units after
 198                 application of scale and offset are kilopascal.
 199
 200 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
 201 KernelVersion:  3.14
 202 Contact:        linux-iio@vger.kernel.org
 203 Description:
 204                 Raw humidity measurement of air. Units after application of
 205                 scale and offset are milli percent.
 206
 207 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
 208 KernelVersion:  3.14
 209 Contact:        linux-iio@vger.kernel.org
 210 Description:
 211                 Scaled humidity measurement in milli percent.
 212
 213 What:           /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
 214 KernelVersion:  3.5
 215 Contact:        linux-iio@vger.kernel.org
 216 Description:
 217                 Averaged raw measurement from channel X. The number of values
 218                 used for averaging is device specific. The converting rules for
 219                 normal raw values also applies to the averaged raw values.
 220
 221 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_offset
 222 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
 223 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
 224 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
 225 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
 226 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
 227 What:           /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
 228 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_offset
 229 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
 230 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
 231 KernelVersion:  2.6.35
 232 Contact:        linux-iio@vger.kernel.org
 233 Description:
 234                 If known for a device, offset to be added to <type>[Y]_raw prior
 235                 to scaling by <type>[Y]_scale in order to obtain value in the
 236                 <type> units as specified in <type>[Y]_raw documentation.
 237                 Not present if the offset is always 0 or unknown. If Y or
 238                 axis <x|y|z> is not present, then the offset applies to all
 239                 in channels of <type>.
 240                 May be writable if a variable offset can be applied on the
 241                 device. Note that this is different to calibbias which
 242                 is for devices (or drivers) that apply offsets to compensate
 243                 for variation between different instances of the part, typically
 244                 adjusted by using some hardware supported calibration procedure.
 245                 Calibbias is applied internally, offset is applied in userspace
 246                 to the _raw output.
 247
 248 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
 249 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
 250 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
 251 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
 252 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
 253 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale
 254 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
 255 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
 256 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_scale
 257 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
 258 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
 259 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
 260 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
 261 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
 262 KernelVersion:  2.6.35
 263 Contact:        linux-iio@vger.kernel.org
 264 Description:
 265                 If known for a device, scale to be applied to <type>Y[_name]_raw
 266                 post addition of <type>[Y][_name]_offset in order to obtain the
 267                 measured value in <type> units as specified in
 268                 <type>[Y][_name]_raw documentation.  If shared across all in
 269                 channels then Y and <x|y|z> are not present and the value is
 270                 called <type>[Y][_name]_scale. The peak modifier means this
 271                 value is applied to <type>Y[_name]_peak_raw values.
 272
 273 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
 274 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
 275 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
 276 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
 277 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
 278 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
 279 What:           /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
 280 What:           /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
 281 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
 282 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
 283 KernelVersion:  2.6.35
 284 Contact:        linux-iio@vger.kernel.org
 285 Description:
 286                 Hardware applied calibration offset (assumed to fix production
 287                 inaccuracies).
 288
 289 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
 290 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
 291 What            /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
 292 What            /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
 293 What            /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
 294 What            /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
 295 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
 296 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
 297 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
 298 what            /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
 299 what            /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
 300 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
 301 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
 302 KernelVersion:  2.6.35
 303 Contact:        linux-iio@vger.kernel.org
 304 Description:
 305                 Hardware applied calibration scale factor (assumed to fix
 306                 production inaccuracies).  If shared across all channels,
 307                 <type>_calibscale is used.
 308
 309 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
 310 What:           /sys/.../iio:deviceX/in_voltageX_scale_available
 311 What:           /sys/.../iio:deviceX/in_voltage-voltage_scale_available
 312 What:           /sys/.../iio:deviceX/out_voltageX_scale_available
 313 What:           /sys/.../iio:deviceX/out_altvoltageX_scale_available
 314 What:           /sys/.../iio:deviceX/in_capacitance_scale_available
 315 What:           /sys/.../iio:deviceX/in_pressure_scale_available
 316 What:           /sys/.../iio:deviceX/in_pressureY_scale_available
 317 KernelVersion:  2.6.35
 318 Contact:        linux-iio@vger.kernel.org
 319 Description:
 320                 If a discrete set of scale values is available, they
 321                 are listed in this attribute.
 322
 323 What            /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
 324 KernelVersion:  2.6.35
 325 Contact:        linux-iio@vger.kernel.org
 326 Description:
 327                 Hardware applied gain factor. If shared across all channels,
 328                 <type>_hardwaregain is used.
 329
 330 What:           /sys/.../in_accel_filter_low_pass_3db_frequency
 331 What:           /sys/.../in_magn_filter_low_pass_3db_frequency
 332 What:           /sys/.../in_anglvel_filter_low_pass_3db_frequency
 333 KernelVersion:  3.2
 334 Contact:        linux-iio@vger.kernel.org
 335 Description:
 336                 If a known or controllable low pass filter is applied
 337                 to the underlying data channel, then this parameter
 338                 gives the 3dB frequency of the filter in Hz.
 339
 340 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
 341 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
 342 KernelVersion:  2.6.37
 343 Contact:        linux-iio@vger.kernel.org
 344 Description:
 345                 Raw (unscaled, no bias etc.) output voltage for
 346                 channel Y.  The number must always be specified and
 347                 unique if the output corresponds to a single channel.
 348                 While DAC like devices typically use out_voltage,
 349                 a continuous frequency generating device, such as
 350                 a DDS or PLL should use out_altvoltage.
 351
 352 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
 353 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
 354 KernelVersion:  2.6.37
 355 Contact:        linux-iio@vger.kernel.org
 356 Description:
 357                 Raw (unscaled, no bias etc.) output voltage for an aggregate of
 358                 channel Y, channel Z, etc.  This interface is available in cases
 359                 where a single output sets the value for multiple channels
 360                 simultaneously.
 361
 362 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
 363 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
 364 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
 365 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
 366 KernelVersion:  2.6.38
 367 Contact:        linux-iio@vger.kernel.org
 368 Description:
 369                 Specifies the output powerdown mode.
 370                 DAC output stage is disconnected from the amplifier and
 371                 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
 372                 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 373                 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 374                 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
 375                 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
 376                 three_state: left floating.
 377                 For a list of available output power down options read
 378                 outX_powerdown_mode_available. If Y is not present the
 379                 mode is shared across all outputs.
 380
 381 What:           /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
 382 What:           /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
 383 What:           /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
 384 What:           /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
 385 KernelVersion:  2.6.38
 386 Contact:        linux-iio@vger.kernel.org
 387 Description:
 388                 Lists all available output power down modes.
 389                 If Y is not present the mode is shared across all outputs.
 390
 391 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
 392 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
 393 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
 394 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
 395 KernelVersion:  2.6.38
 396 Contact:        linux-iio@vger.kernel.org
 397 Description:
 398                 Writing 1 causes output Y to enter the power down mode specified
 399                 by the corresponding outY_powerdown_mode. DAC output stage is
 400                 disconnected from the amplifier. Clearing returns to normal
 401                 operation. Y may be suppressed if all outputs are controlled
 402                 together.
 403
 404 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
 405 KernelVersion:  3.4.0
 406 Contact:        linux-iio@vger.kernel.org
 407 Description:
 408                 Output frequency for channel Y in Hz. The number must always be
 409                 specified and unique if the output corresponds to a single
 410                 channel.
 411
 412 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
 413 KernelVersion:  3.4.0
 414 Contact:        linux-iio@vger.kernel.org
 415 Description:
 416                 Phase in radians of one frequency/clock output Y
 417                 (out_altvoltageY) relative to another frequency/clock output
 418                 (out_altvoltageZ) of the device X. The number must always be
 419                 specified and unique if the output corresponds to a single
 420                 channel.
 421
 422 What:           /sys/bus/iio/devices/iio:deviceX/events
 423 KernelVersion:  2.6.35
 424 Contact:        linux-iio@vger.kernel.org
 425 Description:
 426                 Configuration of which hardware generated events are passed up
 427                 to user-space.
 428
 429 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
 430 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
 431 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
 432 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
 433 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
 434 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
 435 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
 436 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
 437 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
 438 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
 439 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
 440 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
 441 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
 442 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
 443 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
 444 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
 445 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
 446 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
 447 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
 448 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
 449 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
 450 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
 451 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
 452 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
 453 KernelVersion:  2.6.37
 454 Contact:        linux-iio@vger.kernel.org
 455 Description:
 456                 Event generated when channel passes a threshold in the specified
 457                 (_rising|_falling) direction. If the direction is not specified,
 458                 then either the device will report an event which ever direction
 459                 a single threshold value is passed in (e.g.
 460                 <type>[Y][_name]_<raw|input>_thresh_value) or
 461                 <type>[Y][_name]_<raw|input>_thresh_rising_value and
 462                 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
 463                 different values, but the device can only enable both thresholds
 464                 or neither.
 465                 Note the driver will assume the last p events requested are
 466                 to be enabled where p is how many it supports (which may vary
 467                 depending on the exact set requested. So if you want to be
 468                 sure you have set what you think you have, check the contents of
 469                 these attributes after everything is configured. Drivers may
 470                 have to buffer any parameters so that they are consistent when
 471                 a given event type is enabled at a future point (and not those for
 472                 whatever event was previously enabled).
 473
 474 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
 475 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
 476 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
 477 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
 478 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
 479 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
 480 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
 481 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
 482 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
 483 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
 484 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
 485 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
 486 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
 487 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
 488 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
 489 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
 490 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
 491 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
 492 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
 493 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
 494 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
 495 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
 496 What:           /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
 497 What:           /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
 498 KernelVersion:  2.6.37
 499 Contact:        linux-iio@vger.kernel.org
 500 Description:
 501                 Event generated when channel passes a threshold on the rate of
 502                 change (1st differential) in the specified (_rising|_falling)
 503                 direction. If the direction is not specified, then either the
 504                 device will report an event which ever direction a single
 505                 threshold value is passed in (e.g.
 506                 <type>[Y][_name]_<raw|input>_roc_value) or
 507                 <type>[Y][_name]_<raw|input>_roc_rising_value and
 508                 <type>[Y][_name]_<raw|input>_roc_falling_value may take
 509                 different values, but the device can only enable both rate of
 510                 change thresholds or neither.
 511                 Note the driver will assume the last p events requested are
 512                 to be enabled where p is however many it supports (which may
 513                 vary depending on the exact set requested. So if you want to be
 514                 sure you have set what you think you have, check the contents of
 515                 these attributes after everything is configured. Drivers may
 516                 have to buffer any parameters so that they are consistent when
 517                 a given event type is enabled a future point (and not those for
 518                 whatever event was previously enabled).
 519
 520 What:           /sys/.../events/in_accel_x_raw_thresh_rising_value
 521 What:           /sys/.../events/in_accel_x_raw_thresh_falling_value
 522 What:           /sys/.../events/in_accel_y_raw_thresh_rising_value
 523 What:           /sys/.../events/in_accel_y_raw_thresh_falling_value
 524 What:           /sys/.../events/in_accel_z_raw_thresh_rising_value
 525 What:           /sys/.../events/in_accel_z_raw_thresh_falling_value
 526 What:           /sys/.../events/in_anglvel_x_raw_thresh_rising_value
 527 What:           /sys/.../events/in_anglvel_x_raw_thresh_falling_value
 528 What:           /sys/.../events/in_anglvel_y_raw_thresh_rising_value
 529 What:           /sys/.../events/in_anglvel_y_raw_thresh_falling_value
 530 What:           /sys/.../events/in_anglvel_z_raw_thresh_rising_value
 531 What:           /sys/.../events/in_anglvel_z_raw_thresh_falling_value
 532 What:           /sys/.../events/in_magn_x_raw_thresh_rising_value
 533 What:           /sys/.../events/in_magn_x_raw_thresh_falling_value
 534 What:           /sys/.../events/in_magn_y_raw_thresh_rising_value
 535 What:           /sys/.../events/in_magn_y_raw_thresh_falling_value
 536 What:           /sys/.../events/in_magn_z_raw_thresh_rising_value
 537 What:           /sys/.../events/in_magn_z_raw_thresh_falling_value
 538 What:           /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
 539 What:           /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
 540 What:           /sys/.../events/in_voltageY_raw_thresh_rising_value
 541 What:           /sys/.../events/in_voltageY_raw_thresh_falling_value
 542 What:           /sys/.../events/in_tempY_raw_thresh_rising_value
 543 What:           /sys/.../events/in_tempY_raw_thresh_falling_value
 544 What:           /sys/.../events/in_illuminance0_thresh_falling_value
 545 what:           /sys/.../events/in_illuminance0_thresh_rising_value
 546 what:           /sys/.../events/in_proximity0_thresh_falling_value
 547 what:           /sys/.../events/in_proximity0_thresh_rising_value
 548 KernelVersion:  2.6.37
 549 Contact:        linux-iio@vger.kernel.org
 550 Description:
 551                 Specifies the value of threshold that the device is comparing
 552                 against for the events enabled by
 553                 <type>Y[_name]_thresh[_rising|falling]_en.
 554                 If separate attributes exist for the two directions, but
 555                 direction is not specified for this attribute, then a single
 556                 threshold value applies to both directions.
 557                 The raw or input element of the name indicates whether the
 558                 value is in raw device units or in processed units (as _raw
 559                 and _input do on sysfs direct channel read attributes).
 560
 561 What:           /sys/.../events/in_accel_x_thresh_rising_hysteresis
 562 What:           /sys/.../events/in_accel_x_thresh_falling_hysteresis
 563 What:           /sys/.../events/in_accel_x_thresh_either_hysteresis
 564 What:           /sys/.../events/in_accel_y_thresh_rising_hysteresis
 565 What:           /sys/.../events/in_accel_y_thresh_falling_hysteresis
 566 What:           /sys/.../events/in_accel_y_thresh_either_hysteresis
 567 What:           /sys/.../events/in_accel_z_thresh_rising_hysteresis
 568 What:           /sys/.../events/in_accel_z_thresh_falling_hysteresis
 569 What:           /sys/.../events/in_accel_z_thresh_either_hysteresis
 570 What:           /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
 571 What:           /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
 572 What:           /sys/.../events/in_anglvel_x_thresh_either_hysteresis
 573 What:           /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
 574 What:           /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
 575 What:           /sys/.../events/in_anglvel_y_thresh_either_hysteresis
 576 What:           /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
 577 What:           /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
 578 What:           /sys/.../events/in_anglvel_z_thresh_either_hysteresis
 579 What:           /sys/.../events/in_magn_x_thresh_rising_hysteresis
 580 What:           /sys/.../events/in_magn_x_thresh_falling_hysteresis
 581 What:           /sys/.../events/in_magn_x_thresh_either_hysteresis
 582 What:           /sys/.../events/in_magn_y_thresh_rising_hysteresis
 583 What:           /sys/.../events/in_magn_y_thresh_falling_hysteresis
 584 What:           /sys/.../events/in_magn_y_thresh_either_hysteresis
 585 What:           /sys/.../events/in_magn_z_thresh_rising_hysteresis
 586 What:           /sys/.../events/in_magn_z_thresh_falling_hysteresis
 587 What:           /sys/.../events/in_magn_z_thresh_either_hysteresis
 588 What:           /sys/.../events/in_voltageY_thresh_rising_hysteresis
 589 What:           /sys/.../events/in_voltageY_thresh_falling_hysteresis
 590 What:           /sys/.../events/in_voltageY_thresh_either_hysteresis
 591 What:           /sys/.../events/in_tempY_thresh_rising_hysteresis
 592 What:           /sys/.../events/in_tempY_thresh_falling_hysteresis
 593 What:           /sys/.../events/in_tempY_thresh_either_hysteresis
 594 What:           /sys/.../events/in_illuminance0_thresh_falling_hysteresis
 595 what:           /sys/.../events/in_illuminance0_thresh_rising_hysteresis
 596 what:           /sys/.../events/in_illuminance0_thresh_either_hysteresis
 597 what:           /sys/.../events/in_proximity0_thresh_falling_hysteresis
 598 what:           /sys/.../events/in_proximity0_thresh_rising_hysteresis
 599 what:           /sys/.../events/in_proximity0_thresh_either_hysteresis
 600 KernelVersion:  3.13
 601 Contact:        linux-iio@vger.kernel.org
 602 Description:
 603                 Specifies the hysteresis of threshold that the device is comparing
 604                 against for the events enabled by
 605                 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
 606                 If separate attributes exist for the two directions, but
 607                 direction is not specified for this attribute, then a single
 608                 hysteresis value applies to both directions.
 609                 For falling events the hysteresis is added to the _value attribute for
 610                 this event to get the upper threshold for when the event goes back to
 611                 normal, for rising events the hysteresis is subtracted from the _value
 612                 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
 613                 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
 614                 will get activated once in_voltage0_raw goes above 1200 and will become
 615                 deactived again once the value falls below 1150.
 616
 617 What:           /sys/.../events/in_accel_x_raw_roc_rising_value
 618 What:           /sys/.../events/in_accel_x_raw_roc_falling_value
 619 What:           /sys/.../events/in_accel_y_raw_roc_rising_value
 620 What:           /sys/.../events/in_accel_y_raw_roc_falling_value
 621 What:           /sys/.../events/in_accel_z_raw_roc_rising_value
 622 What:           /sys/.../events/in_accel_z_raw_roc_falling_value
 623 What:           /sys/.../events/in_anglvel_x_raw_roc_rising_value
 624 What:           /sys/.../events/in_anglvel_x_raw_roc_falling_value
 625 What:           /sys/.../events/in_anglvel_y_raw_roc_rising_value
 626 What:           /sys/.../events/in_anglvel_y_raw_roc_falling_value
 627 What:           /sys/.../events/in_anglvel_z_raw_roc_rising_value
 628 What:           /sys/.../events/in_anglvel_z_raw_roc_falling_value
 629 What:           /sys/.../events/in_magn_x_raw_roc_rising_value
 630 What:           /sys/.../events/in_magn_x_raw_roc_falling_value
 631 What:           /sys/.../events/in_magn_y_raw_roc_rising_value
 632 What:           /sys/.../events/in_magn_y_raw_roc_falling_value
 633 What:           /sys/.../events/in_magn_z_raw_roc_rising_value
 634 What:           /sys/.../events/in_magn_z_raw_roc_falling_value
 635 What:           /sys/.../events/in_voltageY_supply_raw_roc_rising_value
 636 What:           /sys/.../events/in_voltageY_supply_raw_roc_falling_value
 637 What:           /sys/.../events/in_voltageY_raw_roc_rising_value
 638 What:           /sys/.../events/in_voltageY_raw_roc_falling_value
 639 What:           /sys/.../events/in_tempY_raw_roc_rising_value
 640 What:           /sys/.../events/in_tempY_raw_roc_falling_value
 641 KernelVersion:  2.6.37
 642 Contact:        linux-iio@vger.kernel.org
 643 Description:
 644                 Specifies the value of rate of change threshold that the
 645                 device is comparing against for the events enabled by
 646                 <type>[Y][_name]_roc[_rising|falling]_en.
 647                 If separate attributes exist for the two directions,
 648                 but direction is not specified for this attribute,
 649                 then a single threshold value applies to both directions.
 650                 The raw or input element of the name indicates whether the
 651                 value is in raw device units or in processed units (as _raw
 652                 and _input do on sysfs direct channel read attributes).
 653
 654 What:           /sys/.../events/in_accel_x_thresh_rising_period
 655 What:           /sys/.../events/in_accel_x_thresh_falling_period
 656 hat:            /sys/.../events/in_accel_x_roc_rising_period
 657 What:           /sys/.../events/in_accel_x_roc_falling_period
 658 What:           /sys/.../events/in_accel_y_thresh_rising_period
 659 What:           /sys/.../events/in_accel_y_thresh_falling_period
 660 What:           /sys/.../events/in_accel_y_roc_rising_period
 661 What:           /sys/.../events/in_accel_y_roc_falling_period
 662 What:           /sys/.../events/in_accel_z_thresh_rising_period
 663 What:           /sys/.../events/in_accel_z_thresh_falling_period
 664 What:           /sys/.../events/in_accel_z_roc_rising_period
 665 What:           /sys/.../events/in_accel_z_roc_falling_period
 666 What:           /sys/.../events/in_anglvel_x_thresh_rising_period
 667 What:           /sys/.../events/in_anglvel_x_thresh_falling_period
 668 What:           /sys/.../events/in_anglvel_x_roc_rising_period
 669 What:           /sys/.../events/in_anglvel_x_roc_falling_period
 670 What:           /sys/.../events/in_anglvel_y_thresh_rising_period
 671 What:           /sys/.../events/in_anglvel_y_thresh_falling_period
 672 What:           /sys/.../events/in_anglvel_y_roc_rising_period
 673 What:           /sys/.../events/in_anglvel_y_roc_falling_period
 674 What:           /sys/.../events/in_anglvel_z_thresh_rising_period
 675 What:           /sys/.../events/in_anglvel_z_thresh_falling_period
 676 What:           /sys/.../events/in_anglvel_z_roc_rising_period
 677 What:           /sys/.../events/in_anglvel_z_roc_falling_period
 678 What:           /sys/.../events/in_magn_x_thresh_rising_period
 679 What:           /sys/.../events/in_magn_x_thresh_falling_period
 680 What:           /sys/.../events/in_magn_x_roc_rising_period
 681 What:           /sys/.../events/in_magn_x_roc_falling_period
 682 What:           /sys/.../events/in_magn_y_thresh_rising_period
 683 What:           /sys/.../events/in_magn_y_thresh_falling_period
 684 What:           /sys/.../events/in_magn_y_roc_rising_period
 685 What:           /sys/.../events/in_magn_y_roc_falling_period
 686 What:           /sys/.../events/in_magn_z_thresh_rising_period
 687 What:           /sys/.../events/in_magn_z_thresh_falling_period
 688 What:           /sys/.../events/in_magn_z_roc_rising_period
 689 What:           /sys/.../events/in_magn_z_roc_falling_period
 690 What:           /sys/.../events/in_voltageY_supply_thresh_rising_period
 691 What:           /sys/.../events/in_voltageY_supply_thresh_falling_period
 692 What:           /sys/.../events/in_voltageY_supply_roc_rising_period
 693 What:           /sys/.../events/in_voltageY_supply_roc_falling_period
 694 What:           /sys/.../events/in_voltageY_thresh_rising_period
 695 What:           /sys/.../events/in_voltageY_thresh_falling_period
 696 What:           /sys/.../events/in_voltageY_roc_rising_period
 697 What:           /sys/.../events/in_voltageY_roc_falling_period
 698 What:           /sys/.../events/in_tempY_thresh_rising_period
 699 What:           /sys/.../events/in_tempY_thresh_falling_period
 700 What:           /sys/.../events/in_tempY_roc_rising_period
 701 What:           /sys/.../events/in_tempY_roc_falling_period
 702 What:           /sys/.../events/in_accel_x&y&z_mag_falling_period
 703 What:           /sys/.../events/in_intensity0_thresh_period
 704 What:           /sys/.../events/in_proximity0_thresh_period
 705 KernelVersion:  2.6.37
 706 Contact:        linux-iio@vger.kernel.org
 707 Description:
 708                 Period of time (in seconds) for which the condition must be
 709                 met before an event is generated. If direction is not
 710                 specified then this period applies to both directions.
 711
 712 What:           /sys/.../iio:deviceX/events/in_accel_mag_en
 713 What:           /sys/.../iio:deviceX/events/in_accel_mag_rising_en
 714 What:           /sys/.../iio:deviceX/events/in_accel_mag_falling_en
 715 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_en
 716 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
 717 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
 718 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_en
 719 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
 720 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
 721 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_en
 722 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
 723 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
 724 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
 725 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
 726 KernelVersion:  2.6.37
 727 Contact:        linux-iio@vger.kernel.org
 728 Description:
 729                 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
 730                 magnitude of the channel is compared to the threshold, not its
 731                 signed value.
 732
 733 What:           /sys/.../events/in_accel_raw_mag_value
 734 What:           /sys/.../events/in_accel_x_raw_mag_rising_value
 735 What:           /sys/.../events/in_accel_y_raw_mag_rising_value
 736 What:           /sys/.../events/in_accel_z_raw_mag_rising_value
 737 KernelVersion:  2.6.37
 738 Contact:        linux-iio@vger.kernel.org
 739 Description:
 740                 The value to which the magnitude of the channel is compared. If
 741                 number or direction is not specified, applies to all channels of
 742                 this type.
 743
 744 What:           /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
 745 KernelVersion:  2.6.35
 746 Contact:        linux-iio@vger.kernel.org
 747 Description:
 748                 The name of the trigger source being used, as per string given
 749                 in /sys/class/iio/triggerY/name.
 750
 751 What:           /sys/bus/iio/devices/iio:deviceX/buffer/length
 752 KernelVersion:  2.6.35
 753 Contact:        linux-iio@vger.kernel.org
 754 Description:
 755                 Number of scans contained by the buffer.
 756
 757 What:           /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
 758 KernelVersion:  2.6.37
 759 Contact:        linux-iio@vger.kernel.org
 760 Description:
 761                 Bytes per scan.  Due to alignment fun, the scan may be larger
 762                 than implied directly by the scan_element parameters.
 763
 764 What:           /sys/bus/iio/devices/iio:deviceX/buffer/enable
 765 KernelVersion:  2.6.35
 766 Contact:        linux-iio@vger.kernel.org
 767 Description:
 768                 Actually start the buffer capture up.  Will start trigger
 769                 if first device and appropriate.
 770
 771 What:           /sys/bus/iio/devices/iio:deviceX/scan_elements
 772 KernelVersion:  2.6.37
 773 Contact:        linux-iio@vger.kernel.org
 774 Description:
 775                 Directory containing interfaces for elements that will be
 776                 captured for a single triggered sample set in the buffer.
 777
 778 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_en
 779 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_en
 780 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_en
 781 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
 782 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
 783 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
 784 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_en
 785 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_en
 786 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_en
 787 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_en
 788 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
 789 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_en
 790 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
 791 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_en
 792 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_en
 793 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_en
 794 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_en
 795 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
 796 KernelVersion:  2.6.37
 797 Contact:        linux-iio@vger.kernel.org
 798 Description:
 799                 Scan element control for triggered data capture.
 800
 801 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type
 802 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_type
 803 What:           /sys/.../iio:deviceX/scan_elements/in_magn_type
 804 What:           /sys/.../iio:deviceX/scan_elements/in_incli_type
 805 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_type
 806 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_type
 807 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
 808 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_type
 809 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_type
 810 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_type
 811 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
 812 KernelVersion:  2.6.37
 813 Contact:        linux-iio@vger.kernel.org
 814 Description:
 815                 Description of the scan element data storage within the buffer
 816                 and hence the form in which it is read from user-space.
 817                 Form is [be|le]:[s|u]bits/storagebits[>>shift].
 818                 be or le specifies big or little endian. s or u specifies if
 819                 signed (2's complement) or unsigned. bits is the number of bits
 820                 of data and storagebits is the space (after padding) that it
 821                 occupies in the buffer. shift if specified, is the shift that
 822                 needs to be applied prior to masking out unused bits. Some
 823                 devices put their data in the middle of the transferred elements
 824                 with additional information on both sides.  Note that some
 825                 devices will have additional information in the unused bits
 826                 so to get a clean value, the bits value must be used to mask
 827                 the buffer output value appropriately.  The storagebits value
 828                 also specifies the data alignment.  So s48/64>>2 will be a
 829                 signed 48 bit integer stored in a 64 bit location aligned to
 830                 a 64 bit boundary. To obtain the clean value, shift right 2
 831                 and apply a mask to zero the top 16 bits of the result.
 832                 For other storage combinations this attribute will be extended
 833                 appropriately.
 834
 835 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type_available
 836 KernelVersion:  2.6.37
 837 Contact:        linux-iio@vger.kernel.org
 838 Description:
 839                 If the type parameter can take one of a small set of values,
 840                 this attribute lists them.
 841
 842 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_index
 843 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
 844 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_index
 845 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_index
 846 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_index
 847 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
 848 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
 849 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
 850 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_index
 851 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_index
 852 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_index
 853 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_index
 854 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_index
 855 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_index
 856 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_index
 857 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_index
 858 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
 859 KernelVersion:  2.6.37
 860 Contact:        linux-iio@vger.kernel.org
 861 Description:
 862                 A single positive integer specifying the position of this
 863                 scan element in the buffer. Note these are not dependent on
 864                 what is enabled and may not be contiguous. Thus for user-space
 865                 to establish the full layout these must be used in conjunction
 866                 with all _en attributes to establish which channels are present,
 867                 and the relevant _type attributes to establish the data storage
 868                 format.
 869
 870 What:           /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
 871 KernelVersion:  2.6.38
 872 Contact:        linux-iio@vger.kernel.org
 873 Description:
 874                 This attribute is used to read the amount of quadrature error
 875                 present in the device at a given time.
 876
 877 What:           /sys/.../iio:deviceX/in_accelX_power_mode
 878 KernelVersion:  3.11
 879 Contact:        linux-iio@vger.kernel.org
 880 Description:
 881                 Specifies the chip power mode.
 882                 low_noise: reduce noise level from ADC,
 883                 low_power: enable low current consumption.
 884                 For a list of available output power modes read
 885                 in_accel_power_mode_available.
 886
 887 What:           /sys/bus/iio/devices/iio:deviceX/store_eeprom
 888 KernelVersion:  3.4.0
 889 Contact:        linux-iio@vger.kernel.org
 890 Description:
 891                 Writing '1' stores the current device configuration into
 892                 on-chip EEPROM. After power-up or chip reset the device will
 893                 automatically load the saved configuration.
 894
 895 What:           /sys/.../iio:deviceX/in_intensity_red_integration_time
 896 What:           /sys/.../iio:deviceX/in_intensity_green_integration_time
 897 What:           /sys/.../iio:deviceX/in_intensity_blue_integration_time
 898 What:           /sys/.../iio:deviceX/in_intensity_clear_integration_time
 899 What:           /sys/.../iio:deviceX/in_illuminance_integration_time
 900 KernelVersion:  3.12
 901 Contact:        linux-iio@vger.kernel.org
 902 Description:
 903                 This attribute is used to get/set the integration time in
 904                 seconds.
 905
 906 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
 907 KernelVersion:  3.15
 908 Contact:        linux-iio@vger.kernel.org
 909 Description:
 910                 Raw value of quaternion components using a format
 911                 x y z w. Here x, y, and z component represents the axis about
 912                 which a rotation will occur and w component represents the
 913                 amount of rotation.