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