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Linux/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/timestamp_clock
 36 KernelVersion:  4.5
 37 Contact:        linux-iio@vger.kernel.org
 38 Description:
 39                 String identifying current posix clock used to timestamp
 40                 buffered samples and events for device X.
 41 
 42 What:           /sys/bus/iio/devices/iio:deviceX/sampling_frequency
 43 What:           /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
 44 What:           /sys/bus/iio/devices/triggerX/sampling_frequency
 45 KernelVersion:  2.6.35
 46 Contact:        linux-iio@vger.kernel.org
 47 Description:
 48                 Some devices have internal clocks.  This parameter sets the
 49                 resulting sampling frequency.  In many devices this
 50                 parameter has an effect on input filters etc. rather than
 51                 simply controlling when the input is sampled.  As this
 52                 effects data ready triggers, hardware buffers and the sysfs
 53                 direct access interfaces, it may be found in any of the
 54                 relevant directories.  If it effects all of the above
 55                 then it is to be found in the base device directory.
 56 
 57 What:           /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
 58 What:           /sys/.../iio:deviceX/buffer/sampling_frequency_available
 59 What:           /sys/bus/iio/devices/triggerX/sampling_frequency_available
 60 KernelVersion:  2.6.35
 61 Contact:        linux-iio@vger.kernel.org
 62 Description:
 63                 When the internal sampling clock can only take a small
 64                 discrete set of values, this file lists those available.
 65 
 66 What:           /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
 67 KernelVersion:  2.6.38
 68 Contact:        linux-iio@vger.kernel.org
 69 Description:
 70                 Hardware dependent ADC oversampling. Controls the sampling ratio
 71                 of the digital filter if available.
 72 
 73 What:           /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
 74 KernelVersion:  2.6.38
 75 Contact:        linux-iio@vger.kernel.org
 76 Description:
 77                 Hardware dependent values supported by the oversampling filter.
 78 
 79 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
 80 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
 81 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
 82 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
 83 KernelVersion:  2.6.35
 84 Contact:        linux-iio@vger.kernel.org
 85 Description:
 86                 Raw (unscaled no bias removal etc.) voltage measurement from
 87                 channel Y. In special cases where the channel does not
 88                 correspond to externally available input one of the named
 89                 versions may be used. The number must always be specified and
 90                 unique to allow association with event codes. Units after
 91                 application of scale and offset are millivolts.
 92 
 93                 Channels with 'i' and 'q' modifiers always exist in pairs and both
 94                 channels refer to the same signal. The 'i' channel contains the in-phase
 95                 component of the signal while the 'q' channel contains the quadrature
 96                 component.
 97 
 98 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
 99 KernelVersion:  2.6.35
100 Contact:        linux-iio@vger.kernel.org
101 Description:
102                 Raw (unscaled) differential voltage measurement equivalent to
103                 channel Y - channel Z where these channel numbers apply to the
104                 physically equivalent inputs when non differential readings are
105                 separately available. In differential only parts, then all that
106                 is required is a consistent labeling.  Units after application
107                 of scale and offset are millivolts.
108 
109 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
110 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
111 KernelVersion:  3.17
112 Contact:        linux-iio@vger.kernel.org
113 Description:
114                 Raw (unscaled no bias removal etc.) current measurement from
115                 channel Y. In special cases where the channel does not
116                 correspond to externally available input one of the named
117                 versions may be used. The number must always be specified and
118                 unique to allow association with event codes. Units after
119                 application of scale and offset are milliamps.
120 
121 What:           /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
122 KernelVersion:  3.2
123 Contact:        linux-iio@vger.kernel.org
124 Description:
125                 Raw capacitance measurement from channel Y. Units after
126                 application of scale and offset are nanofarads.
127 
128 What:           /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
129 KernelVersion:  3.2
130 Contact:        linux-iio@vger.kernel.org
131 Description:
132                 Raw differential capacitance measurement equivalent to
133                 channel Y - channel Z where these channel numbers apply to the
134                 physically equivalent inputs when non differential readings are
135                 separately available. In differential only parts, then all that
136                 is required is a consistent labeling.  Units after application
137                 of scale and offset are nanofarads.
138 
139 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_raw
140 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
141 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
142 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
143 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
144 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
145 KernelVersion:  2.6.35
146 Contact:        linux-iio@vger.kernel.org
147 Description:
148                 Raw (unscaled no bias removal etc.) temperature measurement.
149                 If an axis is specified it generally means that the temperature
150                 sensor is associated with one part of a compound device (e.g.
151                 a gyroscope axis). The ambient and object modifiers distinguish
152                 between ambient (reference) and distant temperature for contact-
153                 less measurements. Units after application of scale and offset
154                 are milli degrees Celsius.
155 
156 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_input
157 KernelVersion:  2.6.38
158 Contact:        linux-iio@vger.kernel.org
159 Description:
160                 Scaled temperature measurement in milli degrees Celsius.
161 
162 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
163 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
164 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
165 KernelVersion:  2.6.35
166 Contact:        linux-iio@vger.kernel.org
167 Description:
168                 Acceleration in direction x, y or z (may be arbitrarily assigned
169                 but should match other such assignments on device).
170                 Has all of the equivalent parameters as per voltageY. Units
171                 after application of scale and offset are m/s^2.
172 
173 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
174 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
175 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
176 KernelVersion:  2.6.35
177 Contact:        linux-iio@vger.kernel.org
178 Description:
179                 Angular velocity about axis x, y or z (may be arbitrarily
180                 assigned). Has all the equivalent parameters as per voltageY.
181                 Units after application of scale and offset are radians per
182                 second.
183 
184 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
185 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
186 What:           /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
187 KernelVersion:  2.6.35
188 Contact:        linux-iio@vger.kernel.org
189 Description:
190                 Inclination raw reading about axis x, y or z (may be
191                 arbitrarily assigned). Data converted by application of offset
192                 and scale to degrees.
193 
194 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
195 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
196 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
197 KernelVersion:  2.6.35
198 Contact:        linux-iio@vger.kernel.org
199 Description:
200                 Magnetic field along axis x, y or z (may be arbitrarily
201                 assigned).  Data converted by application of offset
202                 then scale to Gauss.
203 
204 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
205 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
206 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
207 KernelVersion:  2.6.36
208 Contact:        linux-iio@vger.kernel.org
209 Description:
210                 Highest value since some reset condition.  These
211                 attributes allow access to this and are otherwise
212                 the direct equivalent of the <type>Y[_name]_raw attributes.
213 
214 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
215 KernelVersion:  2.6.36
216 Contact:        linux-iio@vger.kernel.org
217 Description:
218                 A computed peak value based on the sum squared magnitude of
219                 the underlying value in the specified directions.
220 
221 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
222 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
223 KernelVersion:  3.8
224 Contact:        linux-iio@vger.kernel.org
225 Description:
226                 Raw pressure measurement from channel Y. Units after
227                 application of scale and offset are kilopascal.
228 
229 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
230 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_input
231 KernelVersion:  3.8
232 Contact:        linux-iio@vger.kernel.org
233 Description:
234                 Scaled pressure measurement from channel Y, in kilopascal.
235 
236 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
237 KernelVersion:  3.14
238 Contact:        linux-iio@vger.kernel.org
239 Description:
240                 Raw humidity measurement of air. Units after application of
241                 scale and offset are milli percent.
242 
243 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
244 KernelVersion:  3.14
245 Contact:        linux-iio@vger.kernel.org
246 Description:
247                 Scaled humidity measurement in milli percent.
248 
249 What:           /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
250 KernelVersion:  3.5
251 Contact:        linux-iio@vger.kernel.org
252 Description:
253                 Averaged raw measurement from channel X. The number of values
254                 used for averaging is device specific. The converting rules for
255                 normal raw values also applies to the averaged raw values.
256 
257 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_offset
258 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
259 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
260 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
261 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
262 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
263 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
264 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
265 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
266 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
267 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
268 What:           /sys/bus/iio/devices/iio:deviceX/in_current_offset
269 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
270 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
271 What:           /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
272 What:           /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
273 What:           /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
274 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_offset
275 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
276 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
277 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
278 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_offset
279 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_offset
280 KernelVersion:  2.6.35
281 Contact:        linux-iio@vger.kernel.org
282 Description:
283                 If known for a device, offset to be added to <type>[Y]_raw prior
284                 to scaling by <type>[Y]_scale in order to obtain value in the
285                 <type> units as specified in <type>[Y]_raw documentation.
286                 Not present if the offset is always 0 or unknown. If Y or
287                 axis <x|y|z> is not present, then the offset applies to all
288                 in channels of <type>.
289                 May be writable if a variable offset can be applied on the
290                 device. Note that this is different to calibbias which
291                 is for devices (or drivers) that apply offsets to compensate
292                 for variation between different instances of the part, typically
293                 adjusted by using some hardware supported calibration procedure.
294                 Calibbias is applied internally, offset is applied in userspace
295                 to the _raw output.
296 
297 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
298 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
299 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
300 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
301 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
302 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
303 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
304 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
305 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
306 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
307 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
308 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
309 What:           /sys/bus/iio/devices/iio:deviceX/in_current_scale
310 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
311 What:           /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
312 What:           /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
313 What:           /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
314 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale
315 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
316 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
317 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_scale
318 What:           /sys/bus/iio/devices/iio:deviceX/in_distance_scale
319 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_scale
320 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
321 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
322 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
323 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
324 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
325 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
326 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
327 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
328 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
329 What:           /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
330 What:           /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
331 What:           /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
332 KernelVersion:  2.6.35
333 Contact:        linux-iio@vger.kernel.org
334 Description:
335                 If known for a device, scale to be applied to <type>Y[_name]_raw
336                 post addition of <type>[Y][_name]_offset in order to obtain the
337                 measured value in <type> units as specified in
338                 <type>[Y][_name]_raw documentation.  If shared across all in
339                 channels then Y and <x|y|z> are not present and the value is
340                 called <type>[Y][_name]_scale. The peak modifier means this
341                 value is applied to <type>Y[_name]_peak_raw values.
342 
343 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
344 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
345 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
346 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
347 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
348 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
349 What:           /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
350 What:           /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
351 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
352 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
353 KernelVersion:  2.6.35
354 Contact:        linux-iio@vger.kernel.org
355 Description:
356                 Hardware applied calibration offset (assumed to fix production
357                 inaccuracies).
358 
359 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
360 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
361 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
362 What            /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
363 What            /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
364 What            /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
365 What            /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
366 What            /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
367 What            /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
368 What            /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
369 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
370 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
371 What            /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
372 what            /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
373 what            /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
374 What:           /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
375 What:           /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
376 What:           /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
377 KernelVersion:  2.6.35
378 Contact:        linux-iio@vger.kernel.org
379 Description:
380                 Hardware applied calibration scale factor (assumed to fix
381                 production inaccuracies).  If shared across all channels,
382                 <type>_calibscale is used.
383 
384 What:           /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
385 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
386 What:           /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
387 What:           /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
388 KernelVersion:  4.0
389 Contact:        linux-iio@vger.kernel.org
390 Description:
391                 Gender of the user (e.g.: male, female) used by some pedometers
392                 to compute the stride length, distance, speed and activity
393                 type.
394 
395 What:           /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
396 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
397 What:           /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
398 What:           /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
399 KernelVersion:  4.0
400 Contact:        linux-iio@vger.kernel.org
401 Description:
402                 Lists all available gender values (e.g.: male, female).
403 
404 What:           /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
405 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
406 What:           /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
407 What:           /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
408 KernelVersion:  3.19
409 Contact:        linux-iio@vger.kernel.org
410 Description:
411                 Height of the user (in meters) used by some pedometers
412                 to compute the stride length, distance, speed and activity
413                 type.
414 
415 What:           /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
416 KernelVersion:  4.0
417 Contact:        linux-iio@vger.kernel.org
418 Description:
419                 Weight of the user (in kg). It is needed by some pedometers
420                 to compute the calories burnt by the user.
421 
422 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
423 What:           /sys/.../iio:deviceX/in_anglvel_scale_available
424 What:           /sys/.../iio:deviceX/in_magn_scale_available
425 What:           /sys/.../iio:deviceX/in_illuminance_scale_available
426 What:           /sys/.../iio:deviceX/in_intensity_scale_available
427 What:           /sys/.../iio:deviceX/in_proximity_scale_available
428 What:           /sys/.../iio:deviceX/in_voltageX_scale_available
429 What:           /sys/.../iio:deviceX/in_voltage-voltage_scale_available
430 What:           /sys/.../iio:deviceX/out_voltageX_scale_available
431 What:           /sys/.../iio:deviceX/out_altvoltageX_scale_available
432 What:           /sys/.../iio:deviceX/in_capacitance_scale_available
433 What:           /sys/.../iio:deviceX/in_pressure_scale_available
434 What:           /sys/.../iio:deviceX/in_pressureY_scale_available
435 KernelVersion:  2.6.35
436 Contact:        linux-iio@vger.kernel.org
437 Description:
438                 If a discrete set of scale values is available, they
439                 are listed in this attribute.
440 
441 What            /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
442 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
443 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
444 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
445 What:           /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
446 KernelVersion:  2.6.35
447 Contact:        linux-iio@vger.kernel.org
448 Description:
449                 Hardware applied gain factor. If shared across all channels,
450                 <type>_hardwaregain is used.
451 
452 What:           /sys/.../in_accel_filter_low_pass_3db_frequency
453 What:           /sys/.../in_magn_filter_low_pass_3db_frequency
454 What:           /sys/.../in_anglvel_filter_low_pass_3db_frequency
455 KernelVersion:  3.2
456 Contact:        linux-iio@vger.kernel.org
457 Description:
458                 If a known or controllable low pass filter is applied
459                 to the underlying data channel, then this parameter
460                 gives the 3dB frequency of the filter in Hz.
461 
462 What:           /sys/.../in_accel_filter_high_pass_3db_frequency
463 What:           /sys/.../in_anglvel_filter_high_pass_3db_frequency
464 What:           /sys/.../in_magn_filter_high_pass_3db_frequency
465 KernelVersion:  4.2
466 Contact:        linux-iio@vger.kernel.org
467 Description:
468                 If a known or controllable high pass filter is applied
469                 to the underlying data channel, then this parameter
470                 gives the 3dB frequency of the filter in Hz.
471 
472 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
473 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
474 KernelVersion:  2.6.37
475 Contact:        linux-iio@vger.kernel.org
476 Description:
477                 Raw (unscaled, no bias etc.) output voltage for
478                 channel Y.  The number must always be specified and
479                 unique if the output corresponds to a single channel.
480                 While DAC like devices typically use out_voltage,
481                 a continuous frequency generating device, such as
482                 a DDS or PLL should use out_altvoltage.
483 
484 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
485 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
486 KernelVersion:  2.6.37
487 Contact:        linux-iio@vger.kernel.org
488 Description:
489                 Raw (unscaled, no bias etc.) output voltage for an aggregate of
490                 channel Y, channel Z, etc.  This interface is available in cases
491                 where a single output sets the value for multiple channels
492                 simultaneously.
493 
494 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
495 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
496 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
497 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
498 KernelVersion:  2.6.38
499 Contact:        linux-iio@vger.kernel.org
500 Description:
501                 Specifies the output powerdown mode.
502                 DAC output stage is disconnected from the amplifier and
503                 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
504                 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
505                 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
506                 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
507                 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
508                 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
509                 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
510                 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
511                 three_state: left floating.
512                 For a list of available output power down options read
513                 outX_powerdown_mode_available. If Y is not present the
514                 mode is shared across all outputs.
515 
516 What:           /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
517 What:           /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
518 What:           /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
519 What:           /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
520 KernelVersion:  2.6.38
521 Contact:        linux-iio@vger.kernel.org
522 Description:
523                 Lists all available output power down modes.
524                 If Y is not present the mode is shared across all outputs.
525 
526 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
527 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
528 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
529 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
530 KernelVersion:  2.6.38
531 Contact:        linux-iio@vger.kernel.org
532 Description:
533                 Writing 1 causes output Y to enter the power down mode specified
534                 by the corresponding outY_powerdown_mode. DAC output stage is
535                 disconnected from the amplifier. Clearing returns to normal
536                 operation. Y may be suppressed if all outputs are controlled
537                 together.
538 
539 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
540 KernelVersion:  3.4.0
541 Contact:        linux-iio@vger.kernel.org
542 Description:
543                 Output frequency for channel Y in Hz. The number must always be
544                 specified and unique if the output corresponds to a single
545                 channel.
546 
547 What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
548 KernelVersion:  3.4.0
549 Contact:        linux-iio@vger.kernel.org
550 Description:
551                 Phase in radians of one frequency/clock output Y
552                 (out_altvoltageY) relative to another frequency/clock output
553                 (out_altvoltageZ) of the device X. The number must always be
554                 specified and unique if the output corresponds to a single
555                 channel.
556 
557 What:           /sys/bus/iio/devices/iio:deviceX/events
558 KernelVersion:  2.6.35
559 Contact:        linux-iio@vger.kernel.org
560 Description:
561                 Configuration of which hardware generated events are passed up
562                 to user-space.
563 
564 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
565 What:           /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
566 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
567 What:           /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
568 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
569 What:           /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
570 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
571 What:           /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
572 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
573 What:           /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
574 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
575 What:           /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
576 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
577 What:           /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
578 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
579 What:           /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
580 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
581 What:           /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
582 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
583 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
584 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
585 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
586 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
587 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
588 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
589 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
590 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
591 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
592 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
593 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
594 What:           /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
595 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
596 What:           /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
597 KernelVersion:  2.6.37
598 Contact:        linux-iio@vger.kernel.org
599 Description:
600                 Event generated when channel passes a threshold in the specified
601                 (_rising|_falling) direction. If the direction is not specified,
602                 then either the device will report an event which ever direction
603                 a single threshold value is passed in (e.g.
604                 <type>[Y][_name]_<raw|input>_thresh_value) or
605                 <type>[Y][_name]_<raw|input>_thresh_rising_value and
606                 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
607                 different values, but the device can only enable both thresholds
608                 or neither.
609                 Note the driver will assume the last p events requested are
610                 to be enabled where p is how many it supports (which may vary
611                 depending on the exact set requested. So if you want to be
612                 sure you have set what you think you have, check the contents of
613                 these attributes after everything is configured. Drivers may
614                 have to buffer any parameters so that they are consistent when
615                 a given event type is enabled at a future point (and not those for
616                 whatever event was previously enabled).
617 
618 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
619 What:           /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
620 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
621 What:           /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
622 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
623 What:           /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
624 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
625 What:           /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
626 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
627 What:           /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
628 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
629 What:           /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
630 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
631 What:           /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
632 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
633 What:           /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
634 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
635 What:           /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
636 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
637 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
638 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
639 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
640 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
641 What:           /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
642 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
643 What:           /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
644 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
645 What:           /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
646 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
647 What:           /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
648 What:           /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
649 What:           /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
650 KernelVersion:  2.6.37
651 Contact:        linux-iio@vger.kernel.org
652 Description:
653                 Event generated when channel passes a threshold on the rate of
654                 change (1st differential) in the specified (_rising|_falling)
655                 direction. If the direction is not specified, then either the
656                 device will report an event which ever direction a single
657                 threshold value is passed in (e.g.
658                 <type>[Y][_name]_<raw|input>_roc_value) or
659                 <type>[Y][_name]_<raw|input>_roc_rising_value and
660                 <type>[Y][_name]_<raw|input>_roc_falling_value may take
661                 different values, but the device can only enable both rate of
662                 change thresholds or neither.
663                 Note the driver will assume the last p events requested are
664                 to be enabled where p is however many it supports (which may
665                 vary depending on the exact set requested. So if you want to be
666                 sure you have set what you think you have, check the contents of
667                 these attributes after everything is configured. Drivers may
668                 have to buffer any parameters so that they are consistent when
669                 a given event type is enabled a future point (and not those for
670                 whatever event was previously enabled).
671 
672 What:           /sys/.../events/in_accel_thresh_rising_value
673 What:           /sys/.../events/in_accel_thresh_falling_value
674 What:           /sys/.../events/in_accel_x_raw_thresh_rising_value
675 What:           /sys/.../events/in_accel_x_raw_thresh_falling_value
676 What:           /sys/.../events/in_accel_y_raw_thresh_rising_value
677 What:           /sys/.../events/in_accel_y_raw_thresh_falling_value
678 What:           /sys/.../events/in_accel_z_raw_thresh_rising_value
679 What:           /sys/.../events/in_accel_z_raw_thresh_falling_value
680 What:           /sys/.../events/in_anglvel_x_raw_thresh_rising_value
681 What:           /sys/.../events/in_anglvel_x_raw_thresh_falling_value
682 What:           /sys/.../events/in_anglvel_y_raw_thresh_rising_value
683 What:           /sys/.../events/in_anglvel_y_raw_thresh_falling_value
684 What:           /sys/.../events/in_anglvel_z_raw_thresh_rising_value
685 What:           /sys/.../events/in_anglvel_z_raw_thresh_falling_value
686 What:           /sys/.../events/in_magn_x_raw_thresh_rising_value
687 What:           /sys/.../events/in_magn_x_raw_thresh_falling_value
688 What:           /sys/.../events/in_magn_y_raw_thresh_rising_value
689 What:           /sys/.../events/in_magn_y_raw_thresh_falling_value
690 What:           /sys/.../events/in_magn_z_raw_thresh_rising_value
691 What:           /sys/.../events/in_magn_z_raw_thresh_falling_value
692 What:           /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
693 What:           /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
694 What:           /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
695 What:           /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
696 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
697 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
698 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
699 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
700 What:           /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
701 What:           /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
702 What:           /sys/.../events/in_voltageY_raw_thresh_rising_value
703 What:           /sys/.../events/in_voltageY_raw_thresh_falling_value
704 What:           /sys/.../events/in_tempY_raw_thresh_rising_value
705 What:           /sys/.../events/in_tempY_raw_thresh_falling_value
706 What:           /sys/.../events/in_illuminance0_thresh_falling_value
707 what:           /sys/.../events/in_illuminance0_thresh_rising_value
708 what:           /sys/.../events/in_proximity0_thresh_falling_value
709 what:           /sys/.../events/in_proximity0_thresh_rising_value
710 KernelVersion:  2.6.37
711 Contact:        linux-iio@vger.kernel.org
712 Description:
713                 Specifies the value of threshold that the device is comparing
714                 against for the events enabled by
715                 <type>Y[_name]_thresh[_rising|falling]_en.
716                 If separate attributes exist for the two directions, but
717                 direction is not specified for this attribute, then a single
718                 threshold value applies to both directions.
719                 The raw or input element of the name indicates whether the
720                 value is in raw device units or in processed units (as _raw
721                 and _input do on sysfs direct channel read attributes).
722 
723 What:           /sys/.../events/in_accel_scale
724 What:           /sys/.../events/in_accel_peak_scale
725 What:           /sys/.../events/in_anglvel_scale
726 What:           /sys/.../events/in_magn_scale
727 What:           /sys/.../events/in_rot_from_north_magnetic_scale
728 What:           /sys/.../events/in_rot_from_north_true_scale
729 What:           /sys/.../events/in_voltage_scale
730 What:           /sys/.../events/in_voltage_supply_scale
731 What:           /sys/.../events/in_temp_scale
732 What:           /sys/.../events/in_illuminance_scale
733 What:           /sys/.../events/in_proximity_scale
734 KernelVersion:  3.21
735 Contact:        linux-iio@vger.kernel.org
736 Description:
737                 Specifies the conversion factor from the standard units
738                 to device specific units used to set the event trigger
739                 threshold.
740 
741 What:           /sys/.../events/in_accel_x_thresh_rising_hysteresis
742 What:           /sys/.../events/in_accel_x_thresh_falling_hysteresis
743 What:           /sys/.../events/in_accel_x_thresh_either_hysteresis
744 What:           /sys/.../events/in_accel_y_thresh_rising_hysteresis
745 What:           /sys/.../events/in_accel_y_thresh_falling_hysteresis
746 What:           /sys/.../events/in_accel_y_thresh_either_hysteresis
747 What:           /sys/.../events/in_accel_z_thresh_rising_hysteresis
748 What:           /sys/.../events/in_accel_z_thresh_falling_hysteresis
749 What:           /sys/.../events/in_accel_z_thresh_either_hysteresis
750 What:           /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
751 What:           /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
752 What:           /sys/.../events/in_anglvel_x_thresh_either_hysteresis
753 What:           /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
754 What:           /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
755 What:           /sys/.../events/in_anglvel_y_thresh_either_hysteresis
756 What:           /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
757 What:           /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
758 What:           /sys/.../events/in_anglvel_z_thresh_either_hysteresis
759 What:           /sys/.../events/in_magn_x_thresh_rising_hysteresis
760 What:           /sys/.../events/in_magn_x_thresh_falling_hysteresis
761 What:           /sys/.../events/in_magn_x_thresh_either_hysteresis
762 What:           /sys/.../events/in_magn_y_thresh_rising_hysteresis
763 What:           /sys/.../events/in_magn_y_thresh_falling_hysteresis
764 What:           /sys/.../events/in_magn_y_thresh_either_hysteresis
765 What:           /sys/.../events/in_magn_z_thresh_rising_hysteresis
766 What:           /sys/.../events/in_magn_z_thresh_falling_hysteresis
767 What:           /sys/.../events/in_magn_z_thresh_either_hysteresis
768 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
769 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
770 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
771 What:           /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
772 What:           /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
773 What:           /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
774 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
775 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
776 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
777 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
778 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
779 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
780 What:           /sys/.../events/in_voltageY_thresh_rising_hysteresis
781 What:           /sys/.../events/in_voltageY_thresh_falling_hysteresis
782 What:           /sys/.../events/in_voltageY_thresh_either_hysteresis
783 What:           /sys/.../events/in_tempY_thresh_rising_hysteresis
784 What:           /sys/.../events/in_tempY_thresh_falling_hysteresis
785 What:           /sys/.../events/in_tempY_thresh_either_hysteresis
786 What:           /sys/.../events/in_illuminance0_thresh_falling_hysteresis
787 what:           /sys/.../events/in_illuminance0_thresh_rising_hysteresis
788 what:           /sys/.../events/in_illuminance0_thresh_either_hysteresis
789 what:           /sys/.../events/in_proximity0_thresh_falling_hysteresis
790 what:           /sys/.../events/in_proximity0_thresh_rising_hysteresis
791 what:           /sys/.../events/in_proximity0_thresh_either_hysteresis
792 KernelVersion:  3.13
793 Contact:        linux-iio@vger.kernel.org
794 Description:
795                 Specifies the hysteresis of threshold that the device is comparing
796                 against for the events enabled by
797                 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
798                 If separate attributes exist for the two directions, but
799                 direction is not specified for this attribute, then a single
800                 hysteresis value applies to both directions.
801                 For falling events the hysteresis is added to the _value attribute for
802                 this event to get the upper threshold for when the event goes back to
803                 normal, for rising events the hysteresis is subtracted from the _value
804                 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
805                 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
806                 will get activated once in_voltage0_raw goes above 1200 and will become
807                 deactived again once the value falls below 1150.
808 
809 What:           /sys/.../events/in_accel_x_raw_roc_rising_value
810 What:           /sys/.../events/in_accel_x_raw_roc_falling_value
811 What:           /sys/.../events/in_accel_y_raw_roc_rising_value
812 What:           /sys/.../events/in_accel_y_raw_roc_falling_value
813 What:           /sys/.../events/in_accel_z_raw_roc_rising_value
814 What:           /sys/.../events/in_accel_z_raw_roc_falling_value
815 What:           /sys/.../events/in_anglvel_x_raw_roc_rising_value
816 What:           /sys/.../events/in_anglvel_x_raw_roc_falling_value
817 What:           /sys/.../events/in_anglvel_y_raw_roc_rising_value
818 What:           /sys/.../events/in_anglvel_y_raw_roc_falling_value
819 What:           /sys/.../events/in_anglvel_z_raw_roc_rising_value
820 What:           /sys/.../events/in_anglvel_z_raw_roc_falling_value
821 What:           /sys/.../events/in_magn_x_raw_roc_rising_value
822 What:           /sys/.../events/in_magn_x_raw_roc_falling_value
823 What:           /sys/.../events/in_magn_y_raw_roc_rising_value
824 What:           /sys/.../events/in_magn_y_raw_roc_falling_value
825 What:           /sys/.../events/in_magn_z_raw_roc_rising_value
826 What:           /sys/.../events/in_magn_z_raw_roc_falling_value
827 What:           /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
828 What:           /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
829 What:           /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
830 What:           /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
831 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
832 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
833 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
834 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
835 What:           /sys/.../events/in_voltageY_supply_raw_roc_rising_value
836 What:           /sys/.../events/in_voltageY_supply_raw_roc_falling_value
837 What:           /sys/.../events/in_voltageY_raw_roc_rising_value
838 What:           /sys/.../events/in_voltageY_raw_roc_falling_value
839 What:           /sys/.../events/in_tempY_raw_roc_rising_value
840 What:           /sys/.../events/in_tempY_raw_roc_falling_value
841 KernelVersion:  2.6.37
842 Contact:        linux-iio@vger.kernel.org
843 Description:
844                 Specifies the value of rate of change threshold that the
845                 device is comparing against for the events enabled by
846                 <type>[Y][_name]_roc[_rising|falling]_en.
847                 If separate attributes exist for the two directions,
848                 but direction is not specified for this attribute,
849                 then a single threshold value applies to both directions.
850                 The raw or input element of the name indicates whether the
851                 value is in raw device units or in processed units (as _raw
852                 and _input do on sysfs direct channel read attributes).
853 
854 What:           /sys/.../events/in_accel_x_thresh_rising_period
855 What:           /sys/.../events/in_accel_x_thresh_falling_period
856 What:           /sys/.../events/in_accel_x_roc_rising_period
857 What:           /sys/.../events/in_accel_x_roc_falling_period
858 What:           /sys/.../events/in_accel_y_thresh_rising_period
859 What:           /sys/.../events/in_accel_y_thresh_falling_period
860 What:           /sys/.../events/in_accel_y_roc_rising_period
861 What:           /sys/.../events/in_accel_y_roc_falling_period
862 What:           /sys/.../events/in_accel_z_thresh_rising_period
863 What:           /sys/.../events/in_accel_z_thresh_falling_period
864 What:           /sys/.../events/in_accel_z_roc_rising_period
865 What:           /sys/.../events/in_accel_z_roc_falling_period
866 What:           /sys/.../events/in_anglvel_x_thresh_rising_period
867 What:           /sys/.../events/in_anglvel_x_thresh_falling_period
868 What:           /sys/.../events/in_anglvel_x_roc_rising_period
869 What:           /sys/.../events/in_anglvel_x_roc_falling_period
870 What:           /sys/.../events/in_anglvel_y_thresh_rising_period
871 What:           /sys/.../events/in_anglvel_y_thresh_falling_period
872 What:           /sys/.../events/in_anglvel_y_roc_rising_period
873 What:           /sys/.../events/in_anglvel_y_roc_falling_period
874 What:           /sys/.../events/in_anglvel_z_thresh_rising_period
875 What:           /sys/.../events/in_anglvel_z_thresh_falling_period
876 What:           /sys/.../events/in_anglvel_z_roc_rising_period
877 What:           /sys/.../events/in_anglvel_z_roc_falling_period
878 What:           /sys/.../events/in_magn_x_thresh_rising_period
879 What:           /sys/.../events/in_magn_x_thresh_falling_period
880 What:           /sys/.../events/in_magn_x_roc_rising_period
881 What:           /sys/.../events/in_magn_x_roc_falling_period
882 What:           /sys/.../events/in_magn_y_thresh_rising_period
883 What:           /sys/.../events/in_magn_y_thresh_falling_period
884 What:           /sys/.../events/in_magn_y_roc_rising_period
885 What:           /sys/.../events/in_magn_y_roc_falling_period
886 What:           /sys/.../events/in_magn_z_thresh_rising_period
887 What:           /sys/.../events/in_magn_z_thresh_falling_period
888 What:           /sys/.../events/in_magn_z_roc_rising_period
889 What:           /sys/.../events/in_magn_z_roc_falling_period
890 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
891 What:           /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
892 What:           /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
893 What:           /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
894 What:           /sys/.../events/in_rot_from_north_true_thresh_rising_period
895 What:           /sys/.../events/in_rot_from_north_true_thresh_falling_period
896 What:           /sys/.../events/in_rot_from_north_true_roc_rising_period
897 What:           /sys/.../events/in_rot_from_north_true_roc_falling_period
898 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
899 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
900 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
901 What:           /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
902 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
903 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
904 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
905 What:           /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
906 What:           /sys/.../events/in_voltageY_supply_thresh_rising_period
907 What:           /sys/.../events/in_voltageY_supply_thresh_falling_period
908 What:           /sys/.../events/in_voltageY_supply_roc_rising_period
909 What:           /sys/.../events/in_voltageY_supply_roc_falling_period
910 What:           /sys/.../events/in_voltageY_thresh_rising_period
911 What:           /sys/.../events/in_voltageY_thresh_falling_period
912 What:           /sys/.../events/in_voltageY_roc_rising_period
913 What:           /sys/.../events/in_voltageY_roc_falling_period
914 What:           /sys/.../events/in_tempY_thresh_rising_period
915 What:           /sys/.../events/in_tempY_thresh_falling_period
916 What:           /sys/.../events/in_tempY_roc_rising_period
917 What:           /sys/.../events/in_tempY_roc_falling_period
918 What:           /sys/.../events/in_accel_x&y&z_mag_falling_period
919 What:           /sys/.../events/in_intensity0_thresh_period
920 What:           /sys/.../events/in_proximity0_thresh_period
921 What:           /sys/.../events/in_activity_still_thresh_rising_period
922 What:           /sys/.../events/in_activity_still_thresh_falling_period
923 What:           /sys/.../events/in_activity_walking_thresh_rising_period
924 What:           /sys/.../events/in_activity_walking_thresh_falling_period
925 What:           /sys/.../events/in_activity_jogging_thresh_rising_period
926 What:           /sys/.../events/in_activity_jogging_thresh_falling_period
927 What:           /sys/.../events/in_activity_running_thresh_rising_period
928 What:           /sys/.../events/in_activity_running_thresh_falling_period
929 KernelVersion:  2.6.37
930 Contact:        linux-iio@vger.kernel.org
931 Description:
932                 Period of time (in seconds) for which the condition must be
933                 met before an event is generated. If direction is not
934                 specified then this period applies to both directions.
935 
936 What:           /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
937 What:           /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
938 What:           /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
939 KernelVersion:  4.2
940 Contact:        linux-iio@vger.kernel.org
941 Description:
942                 If a low pass filter can be applied to the event generation
943                 this property gives its 3db frequency in Hz.
944                 A value of zero disables the filter.
945 
946 What:           /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
947 What:           /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
948 What:           /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
949 KernelVersion:  4.2
950 Contact:        linux-iio@vger.kernel.org
951 Description:
952                 If a high pass filter can be applied to the event generation
953                 this property gives its 3db frequency in Hz.
954                 A value of zero disables the filter.
955 
956 What:           /sys/.../events/in_activity_still_thresh_rising_en
957 What:           /sys/.../events/in_activity_still_thresh_falling_en
958 What:           /sys/.../events/in_activity_walking_thresh_rising_en
959 What:           /sys/.../events/in_activity_walking_thresh_falling_en
960 What:           /sys/.../events/in_activity_jogging_thresh_rising_en
961 What:           /sys/.../events/in_activity_jogging_thresh_falling_en
962 What:           /sys/.../events/in_activity_running_thresh_rising_en
963 What:           /sys/.../events/in_activity_running_thresh_falling_en
964 KernelVersion:  3.19
965 Contact:        linux-iio@vger.kernel.org
966 Description:
967                 Enables or disables activitity events. Depending on direction
968                 an event is generated when sensor ENTERS or LEAVES a given state.
969 
970 What:           /sys/.../events/in_activity_still_thresh_rising_value
971 What:           /sys/.../events/in_activity_still_thresh_falling_value
972 What:           /sys/.../events/in_activity_walking_thresh_rising_value
973 What:           /sys/.../events/in_activity_walking_thresh_falling_value
974 What:           /sys/.../events/in_activity_jogging_thresh_rising_value
975 What:           /sys/.../events/in_activity_jogging_thresh_falling_value
976 What:           /sys/.../events/in_activity_running_thresh_rising_value
977 What:           /sys/.../events/in_activity_running_thresh_falling_value
978 KernelVersion:  3.19
979 Contact:        linux-iio@vger.kernel.org
980 Description:
981                 Confidence value (in units as percentage) to be used
982                 for deciding when an event should be generated. E.g for
983                 running: If the confidence value reported by the sensor
984                 is greater than in_activity_running_thresh_rising_value
985                 then the sensor ENTERS running state. Conversely, if the
986                 confidence value reported by the sensor is lower than
987                 in_activity_running_thresh_falling_value then the sensor
988                 is LEAVING running state.
989 
990 What:           /sys/.../iio:deviceX/events/in_accel_mag_en
991 What:           /sys/.../iio:deviceX/events/in_accel_mag_rising_en
992 What:           /sys/.../iio:deviceX/events/in_accel_mag_falling_en
993 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_en
994 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
995 What:           /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
996 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_en
997 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
998 What:           /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
999 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_en
1000 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1001 What:           /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1002 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1003 What:           /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1004 KernelVersion:  2.6.37
1005 Contact:        linux-iio@vger.kernel.org
1006 Description:
1007                 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1008                 magnitude of the channel is compared to the threshold, not its
1009                 signed value.
1010 
1011 What:           /sys/.../events/in_accel_raw_mag_value
1012 What:           /sys/.../events/in_accel_x_raw_mag_rising_value
1013 What:           /sys/.../events/in_accel_y_raw_mag_rising_value
1014 What:           /sys/.../events/in_accel_z_raw_mag_rising_value
1015 KernelVersion:  2.6.37
1016 Contact:        linux-iio@vger.kernel.org
1017 Description:
1018                 The value to which the magnitude of the channel is compared. If
1019                 number or direction is not specified, applies to all channels of
1020                 this type.
1021 
1022 What:           /sys/.../events/in_steps_change_en
1023 KernelVersion:  4.0
1024 Contact:        linux-iio@vger.kernel.org
1025 Description:
1026                 Event generated when channel passes a threshold on the absolute
1027                 change in value. E.g. for steps: a step change event is
1028                 generated each time the user takes N steps, where N is set using
1029                 in_steps_change_value.
1030 
1031 What:           /sys/.../events/in_steps_change_value
1032 KernelVersion:  4.0
1033 Contact:        linux-iio@vger.kernel.org
1034 Description:
1035                 Specifies the value of change threshold that the
1036                 device is comparing against for the events enabled by
1037                 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1038                 if set to 3, a step change event will be generated every 3
1039                 steps.
1040 
1041 What:           /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1042 KernelVersion:  2.6.35
1043 Contact:        linux-iio@vger.kernel.org
1044 Description:
1045                 The name of the trigger source being used, as per string given
1046                 in /sys/class/iio/triggerY/name.
1047 
1048 What:           /sys/bus/iio/devices/iio:deviceX/buffer/length
1049 KernelVersion:  2.6.35
1050 Contact:        linux-iio@vger.kernel.org
1051 Description:
1052                 Number of scans contained by the buffer.
1053 
1054 What:           /sys/bus/iio/devices/iio:deviceX/buffer/enable
1055 KernelVersion:  2.6.35
1056 Contact:        linux-iio@vger.kernel.org
1057 Description:
1058                 Actually start the buffer capture up.  Will start trigger
1059                 if first device and appropriate.
1060 
1061 What:           /sys/bus/iio/devices/iio:deviceX/scan_elements
1062 KernelVersion:  2.6.37
1063 Contact:        linux-iio@vger.kernel.org
1064 Description:
1065                 Directory containing interfaces for elements that will be
1066                 captured for a single triggered sample set in the buffer.
1067 
1068 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_en
1069 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_en
1070 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_en
1071 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1072 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1073 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1074 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_en
1075 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_en
1076 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_en
1077 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1078 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1079 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1080 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1081 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_en
1082 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1083 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_en
1084 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1085 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1086 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1087 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1088 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1089 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_en
1090 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_en
1091 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_en
1092 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_en
1093 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1094 What:           /sys/.../iio:deviceX/scan_elements/in_proximity_en
1095 KernelVersion:  2.6.37
1096 Contact:        linux-iio@vger.kernel.org
1097 Description:
1098                 Scan element control for triggered data capture.
1099 
1100 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type
1101 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_type
1102 What:           /sys/.../iio:deviceX/scan_elements/in_magn_type
1103 What:           /sys/.../iio:deviceX/scan_elements/in_incli_type
1104 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_type
1105 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_type
1106 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1107 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1108 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1109 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1110 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1111 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_type
1112 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_type
1113 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_type
1114 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1115 What:           /sys/.../iio:deviceX/scan_elements/in_proximity_type
1116 KernelVersion:  2.6.37
1117 Contact:        linux-iio@vger.kernel.org
1118 Description:
1119                 Description of the scan element data storage within the buffer
1120                 and hence the form in which it is read from user-space.
1121                 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1122                 be or le specifies big or little endian. s or u specifies if
1123                 signed (2's complement) or unsigned. bits is the number of bits
1124                 of data and storagebits is the space (after padding) that it
1125                 occupies in the buffer. shift if specified, is the shift that
1126                 needs to be applied prior to masking out unused bits. Some
1127                 devices put their data in the middle of the transferred elements
1128                 with additional information on both sides.  Note that some
1129                 devices will have additional information in the unused bits
1130                 so to get a clean value, the bits value must be used to mask
1131                 the buffer output value appropriately.  The storagebits value
1132                 also specifies the data alignment.  So s48/64>>2 will be a
1133                 signed 48 bit integer stored in a 64 bit location aligned to
1134                 a 64 bit boundary. To obtain the clean value, shift right 2
1135                 and apply a mask to zero the top 16 bits of the result.
1136                 For other storage combinations this attribute will be extended
1137                 appropriately.
1138 
1139 What:           /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1140 KernelVersion:  2.6.37
1141 Contact:        linux-iio@vger.kernel.org
1142 Description:
1143                 If the type parameter can take one of a small set of values,
1144                 this attribute lists them.
1145 
1146 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1147 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1148 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1149 What:           /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1150 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1151 What:           /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1152 What:           /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1153 What:           /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1154 What:           /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1155 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1156 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1157 What:           /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1158 What:           /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1159 What:           /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1160 What:           /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1161 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1162 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1163 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1164 What:           /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1165 What:           /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1166 What:           /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1167 What:           /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1168 What:           /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1169 What:           /sys/.../iio:deviceX/scan_elements/in_pressure_index
1170 What:           /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1171 What:           /sys/.../iio:deviceX/scan_elements/in_proximity_index
1172 KernelVersion:  2.6.37
1173 Contact:        linux-iio@vger.kernel.org
1174 Description:
1175                 A single positive integer specifying the position of this
1176                 scan element in the buffer. Note these are not dependent on
1177                 what is enabled and may not be contiguous. Thus for user-space
1178                 to establish the full layout these must be used in conjunction
1179                 with all _en attributes to establish which channels are present,
1180                 and the relevant _type attributes to establish the data storage
1181                 format.
1182 
1183 What:           /sys/.../iio:deviceX/in_activity_still_input
1184 What:           /sys/.../iio:deviceX/in_activity_walking_input
1185 What:           /sys/.../iio:deviceX/in_activity_jogging_input
1186 What:           /sys/.../iio:deviceX/in_activity_running_input
1187 KernelVersion:  3.19
1188 Contact:        linux-iio@vger.kernel.org
1189 Description:
1190                 This attribute is used to read the confidence for an activity
1191                 expressed in units as percentage.
1192 
1193 What:           /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1194 KernelVersion:  2.6.38
1195 Contact:        linux-iio@vger.kernel.org
1196 Description:
1197                 This attribute is used to read the amount of quadrature error
1198                 present in the device at a given time.
1199 
1200 What:           /sys/.../iio:deviceX/in_accelX_power_mode
1201 KernelVersion:  3.11
1202 Contact:        linux-iio@vger.kernel.org
1203 Description:
1204                 Specifies the chip power mode.
1205                 low_noise: reduce noise level from ADC,
1206                 low_power: enable low current consumption.
1207                 For a list of available output power modes read
1208                 in_accel_power_mode_available.
1209 
1210 What:           /sys/.../iio:deviceX/in_energy_input
1211 What:           /sys/.../iio:deviceX/in_energy_raw
1212 KernelVersion:  4.0
1213 Contact:        linux-iio@vger.kernel.org
1214 Description:
1215                 This attribute is used to read the energy value reported by the
1216                 device (e.g.: human activity sensors report energy burnt by the
1217                 user). Units after application of scale are Joules.
1218 
1219 What:           /sys/.../iio:deviceX/in_distance_input
1220 What:           /sys/.../iio:deviceX/in_distance_raw
1221 KernelVersion:  4.0
1222 Contact:        linux-iio@vger.kernel.org
1223 Description:
1224                 This attribute is used to read the distance covered by the user
1225                 since the last reboot while activated. Units after application
1226                 of scale are meters.
1227 
1228 What:           /sys/bus/iio/devices/iio:deviceX/store_eeprom
1229 KernelVersion:  3.4.0
1230 Contact:        linux-iio@vger.kernel.org
1231 Description:
1232                 Writing '1' stores the current device configuration into
1233                 on-chip EEPROM. After power-up or chip reset the device will
1234                 automatically load the saved configuration.
1235 
1236 What:           /sys/.../iio:deviceX/in_proximity_raw
1237 What:           /sys/.../iio:deviceX/in_proximity_input
1238 What:           /sys/.../iio:deviceX/in_proximityY_raw
1239 KernelVersion:  3.4
1240 Contact:        linux-iio@vger.kernel.org
1241 Description:
1242                 Proximity measurement indicating that some
1243                 object is near the sensor, usually by observing
1244                 reflectivity of infrared or ultrasound emitted.
1245                 Often these sensors are unit less and as such conversion
1246                 to SI units is not possible. Higher proximity measurements
1247                 indicate closer objects, and vice versa.
1248 
1249 What:           /sys/.../iio:deviceX/in_illuminance_input
1250 What:           /sys/.../iio:deviceX/in_illuminance_raw
1251 What:           /sys/.../iio:deviceX/in_illuminanceY_input
1252 What:           /sys/.../iio:deviceX/in_illuminanceY_raw
1253 What:           /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1254 What:           /sys/.../iio:deviceX/in_illuminance_ir_raw
1255 What:           /sys/.../iio:deviceX/in_illuminance_clear_raw
1256 KernelVersion:  3.4
1257 Contact:        linux-iio@vger.kernel.org
1258 Description:
1259                 Illuminance measurement, units after application of scale
1260                 and offset are lux.
1261 
1262 What:           /sys/.../iio:deviceX/in_intensityY_raw
1263 What:           /sys/.../iio:deviceX/in_intensityY_ir_raw
1264 What:           /sys/.../iio:deviceX/in_intensityY_both_raw
1265 What:           /sys/.../iio:deviceX/in_intensityY_uv_raw
1266 KernelVersion:  3.4
1267 Contact:        linux-iio@vger.kernel.org
1268 Description:
1269                 Unit-less light intensity. Modifiers both and ir indicate
1270                 that measurements contains visible and infrared light
1271                 components or just infrared light, respectively. Modifier uv indicates
1272                 that measurements contain ultraviolet light components.
1273 
1274 What:           /sys/.../iio:deviceX/in_uvindex_input
1275 KernelVersion:  4.6
1276 Contact:        linux-iio@vger.kernel.org
1277 Description:
1278                 UV light intensity index measuring the human skin's response to
1279                 different wavelength of sunlight weighted according to the
1280                 standardised CIE Erythemal Action Spectrum. UV index values range
1281                 from 0 (low) to >=11 (extreme).
1282 
1283 What:           /sys/.../iio:deviceX/in_intensity_red_integration_time
1284 What:           /sys/.../iio:deviceX/in_intensity_green_integration_time
1285 What:           /sys/.../iio:deviceX/in_intensity_blue_integration_time
1286 What:           /sys/.../iio:deviceX/in_intensity_clear_integration_time
1287 What:           /sys/.../iio:deviceX/in_illuminance_integration_time
1288 KernelVersion:  3.12
1289 Contact:        linux-iio@vger.kernel.org
1290 Description:
1291                 This attribute is used to get/set the integration time in
1292                 seconds.
1293 
1294 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1295 KernelVersion:  4.0
1296 Contact:        linux-iio@vger.kernel.org
1297 Description:
1298                 Number of seconds in which to compute speed.
1299 
1300 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1301 KernelVersion:  3.15
1302 Contact:        linux-iio@vger.kernel.org
1303 Description:
1304                 Raw value of quaternion components using a format
1305                 x y z w. Here x, y, and z component represents the axis about
1306                 which a rotation will occur and w component represents the
1307                 amount of rotation.
1308 
1309 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1310 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1311 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1312 What:           /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1313 KernelVersion:  3.15
1314 Contact:        linux-iio@vger.kernel.org
1315 Description:
1316                 Raw value of rotation from true/magnetic north measured with
1317                 or without compensation from tilt sensors.
1318 
1319 What:           /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1320 What:           /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1321 What:           /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1322 KernelVersion:  3.18
1323 Contact:        linux-iio@vger.kernel.org
1324 Description:
1325                 Raw current measurement from channel X. Units are in milliamps
1326                 after application of scale and offset. If no offset or scale is
1327                 present, output should be considered as processed with the
1328                 unit in milliamps.
1329 
1330                 Channels with 'i' and 'q' modifiers always exist in pairs and both
1331                 channels refer to the same signal. The 'i' channel contains the in-phase
1332                 component of the signal while the 'q' channel contains the quadrature
1333                 component.
1334 
1335 What:           /sys/.../iio:deviceX/in_energy_en
1336 What:           /sys/.../iio:deviceX/in_distance_en
1337 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1338 What:           /sys/.../iio:deviceX/in_steps_en
1339 KernelVersion:  3.19
1340 Contact:        linux-iio@vger.kernel.org
1341 Description:
1342                 Activates a device feature that runs in firmware/hardware.
1343                 E.g. for steps: the pedometer saves power while not used;
1344                 when activated, it will count the steps taken by the user in
1345                 firmware and export them through in_steps_input.
1346 
1347 What:           /sys/.../iio:deviceX/in_steps_input
1348 KernelVersion:  3.19
1349 Contact:        linux-iio@vger.kernel.org
1350 Description:
1351                 This attribute is used to read the number of steps taken by the user
1352                 since the last reboot while activated.
1353 
1354 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1355 What:           /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1356 KernelVersion:  3.19
1357 Contact:        linux-iio@vger.kernel.org
1358 Description:
1359                 This attribute is used to read the current speed value of the
1360                 user (which is the norm or magnitude of the velocity vector).
1361                 Units after application of scale are m/s.
1362 
1363 What:           /sys/.../iio:deviceX/in_steps_debounce_count
1364 KernelVersion:  4.0
1365 Contact:        linux-iio@vger.kernel.org
1366 Description:
1367                 Specifies the number of steps that must occur within
1368                 in_steps_filter_debounce_time for the pedometer to decide the
1369                 consumer is making steps.
1370 
1371 What:           /sys/.../iio:deviceX/in_steps_debounce_time
1372 KernelVersion:  4.0
1373 Contact:        linux-iio@vger.kernel.org
1374 Description:
1375                 Specifies number of seconds in which we compute the steps
1376                 that occur in order to decide if the consumer is making steps.
1377 
1378 What:           /sys/bus/iio/devices/iio:deviceX/buffer/watermark
1379 KernelVersion:  4.2
1380 Contact:        linux-iio@vger.kernel.org
1381 Description:
1382                 A single positive integer specifying the maximum number of scan
1383                 elements to wait for.
1384                 Poll will block until the watermark is reached.
1385                 Blocking read will wait until the minimum between the requested
1386                 read amount or the low water mark is available.
1387                 Non-blocking read will retrieve the available samples from the
1388                 buffer even if there are less samples then watermark level. This
1389                 allows the application to block on poll with a timeout and read
1390                 the available samples after the timeout expires and thus have a
1391                 maximum delay guarantee.
1392 
1393 What:           /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1394 KernelVersion: 4.2
1395 Contact:        linux-iio@vger.kernel.org
1396 Description:
1397                 A read-only boolean value that indicates if the hardware fifo is
1398                 currently enabled or disabled. If the device does not have a
1399                 hardware fifo this entry is not present.
1400                 The hardware fifo is enabled when the buffer is enabled if the
1401                 current hardware fifo watermark level is set and other current
1402                 device settings allows it (e.g. if a trigger is set that samples
1403                 data differently that the hardware fifo does then hardware fifo
1404                 will not enabled).
1405                 If the hardware fifo is enabled and the level of the hardware
1406                 fifo reaches the hardware fifo watermark level the device will
1407                 flush its hardware fifo to the device buffer. Doing a non
1408                 blocking read on the device when no samples are present in the
1409                 device buffer will also force a flush.
1410                 When the hardware fifo is enabled there is no need to use a
1411                 trigger to use buffer mode since the watermark settings
1412                 guarantees that the hardware fifo is flushed to the device
1413                 buffer.
1414 
1415 What:           /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1416 KernelVersion: 4.2
1417 Contact:        linux-iio@vger.kernel.org
1418 Description:
1419                 Read-only entry that contains a single integer specifying the
1420                 current watermark level for the hardware fifo. If the device
1421                 does not have a hardware fifo this entry is not present.
1422                 The watermark level for the hardware fifo is set by the driver
1423                 based on the value set by the user in buffer/watermark but
1424                 taking into account hardware limitations (e.g. most hardware
1425                 buffers are limited to 32-64 samples, some hardware buffers
1426                 watermarks are fixed or have minimum levels).  A value of 0
1427                 means that the hardware watermark is unset.
1428 
1429 What:           /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1430 KernelVersion: 4.2
1431 Contact:       linux-iio@vger.kernel.org
1432 Description:
1433                 A single positive integer specifying the minimum watermark level
1434                 for the hardware fifo of this device. If the device does not
1435                 have a hardware fifo this entry is not present.
1436                 If the user sets buffer/watermark to a value less than this one,
1437                 then the hardware watermark will remain unset.
1438 
1439 What:          /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1440 KernelVersion: 4.2
1441 Contact:       linux-iio@vger.kernel.org
1442 Description:
1443                 A single positive integer specifying the maximum watermark level
1444                 for the hardware fifo of this device. If the device does not
1445                 have a hardware fifo this entry is not present.
1446                 If the user sets buffer/watermark to a value greater than this
1447                 one, then the hardware watermark will be capped at this value.
1448 
1449 What:          /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1450 KernelVersion: 4.2
1451 Contact:       linux-iio@vger.kernel.org
1452 Description:
1453                 A list of positive integers specifying the available watermark
1454                 levels for the hardware fifo. This entry is optional and if it
1455                 is not present it means that all the values between
1456                 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1457                 If the user sets buffer/watermark to a value greater than
1458                 hwfifo_watermak_min but not equal to any of the values in this
1459                 list, the driver will chose an appropriate value for the
1460                 hardware fifo watermark level.
1461 
1462 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1463 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1464 What:           /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1465 What:           /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1466 KernelVersion:  4.1
1467 Contact:        linux-iio@vger.kernel.org
1468 Description:
1469                 The emissivity ratio of the surface in the field of view of the
1470                 contactless temperature sensor.  Emissivity varies from 0 to 1,
1471                 with 1 being the emissivity of a black body.
1472 
1473 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1474 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1475 What:           /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1476 KernelVersion:  4.2
1477 Contact:        linux-iio@vger.kernel.org
1478 Description:
1479                 Hardware applied number of measurements for acquiring one
1480                 data point. The HW will do <type>[_name]_oversampling_ratio
1481                 measurements and return the average value as output data. Each
1482                 value resulted from <type>[_name]_oversampling_ratio measurements
1483                 is considered as one sample for <type>[_name]_sampling_frequency.
1484 
1485 What:           /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1486 What:           /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1487 What:           /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1488 What:           /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1489 What:           /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1490 What:           /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1491 KernelVersion:  4.3
1492 Contact:        linux-iio@vger.kernel.org
1493 Description:
1494                 Raw (unscaled no offset etc.) percentage reading of a substance.
1495 
1496 What:           /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1497 What:           /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1498 What:           /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1499 What:           /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1500 KernelVersion:  4.3
1501 Contact:        linux-iio@vger.kernel.org
1502 Description:
1503                 Raw (unscaled no offset etc.) resistance reading that can be processed
1504                 into an ohm value.
1505 
1506 What:           /sys/bus/iio/devices/iio:deviceX/heater_enable
1507 KernelVersion:  4.1.0
1508 Contact:        linux-iio@vger.kernel.org
1509 Description:
1510                 '1' (enable) or '0' (disable) specifying the enable
1511                 of heater function. Same reading values apply
1512                 This ABI is especially applicable for humidity sensors
1513                 to heatup the device and get rid of any condensation
1514                 in some humidity environment
1515 
1516 What:           /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1517 KernelVersion:  4.5
1518 Contact:        linux-iio@vger.kernel.org
1519 Description:
1520                 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1521                 base-10 logarithm of hydrodium ions in a litre of water.
1522 
1523 What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
1524 What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1525 What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1526 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1527 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1528 KernelVersion:  4.6
1529 Contact:        linux-iio@vger.kernel.org
1530 Description:
1531                 Mounting matrix for IIO sensors. This is a rotation matrix which
1532                 informs userspace about sensor chip's placement relative to the
1533                 main hardware it is mounted on.
1534                 Main hardware placement is defined according to the local
1535                 reference frame related to the physical quantity the sensor
1536                 measures.
1537                 Given that the rotation matrix is defined in a board specific
1538                 way (platform data and / or device-tree), the main hardware
1539                 reference frame definition is left to the implementor's choice
1540                 (see below for a magnetometer example).
1541                 Applications should apply this rotation matrix to samples so
1542                 that when main hardware reference frame is aligned onto local
1543                 reference frame, then sensor chip reference frame is also
1544                 perfectly aligned with it.
1545                 Matrix is a 3x3 unitary matrix and typically looks like
1546                 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1547                 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1548                 are perfectly aligned with each other.
1549 
1550                 For example, a mounting matrix for a magnetometer sensor informs
1551                 userspace about sensor chip's ORIENTATION relative to the main
1552                 hardware.
1553                 More specifically, main hardware orientation is defined with
1554                 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1555                 * Y is in the ground plane and positive towards magnetic North ;
1556                 * X is in the ground plane, perpendicular to the North axis and
1557                   positive towards the East ;
1558                 * Z is perpendicular to the ground plane and positive upwards.
1559 
1560                 An implementor might consider that for a hand-held device, a
1561                 'natural' orientation would be 'front facing camera at the top'.
1562                 The main hardware reference frame could then be described as :
1563                 * Y is in the plane of the screen and is positive towards the
1564                   top of the screen ;
1565                 * X is in the plane of the screen, perpendicular to Y axis, and
1566                   positive towards the right hand side of the screen ;
1567                 * Z is perpendicular to the screen plane and positive out of the
1568                   screen.
1569                 Another example for a quadrotor UAV might be :
1570                 * Y is in the plane of the propellers and positive towards the
1571                   front-view camera;
1572                 * X is in the plane of the propellers, perpendicular to Y axis,
1573                   and positive towards the starboard side of the UAV ;
1574                 * Z is perpendicular to propellers plane and positive upwards.
1575 
1576 What:           /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1577 KernelVersion:  4.8
1578 Contact:        linux-iio@vger.kernel.org
1579 Description:
1580                 Raw (unscaled no offset etc.) electric conductivity reading that
1581                 can be processed to siemens per meter.

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