1 What: /sys/bus/iio/devices/iio:deviceX
3 Contact: linux-iio@vger.kernel.org
5 Hardware chip or device accessed by one communication port.
6 Corresponds to a grouping of sensor channels. X is the IIO
9 What: /sys/bus/iio/devices/triggerX
11 Contact: linux-iio@vger.kernel.org
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).
19 Contains trigger type specific elements. These do not
20 generalize well and hence are not documented in this file.
21 X is the IIO index of the trigger.
23 What: /sys/bus/iio/devices/iio:deviceX/buffer
25 Contact: linux-iio@vger.kernel.org
27 Directory of attributes relating to the buffer for the device.
29 What: /sys/bus/iio/devices/iio:deviceX/name
31 Contact: linux-iio@vger.kernel.org
33 Description of the physical chip / device for device X.
34 Typically a part number.
36 What: /sys/bus/iio/devices/iio:deviceX/label
38 Contact: linux-iio@vger.kernel.org
40 Optional symbolic label for a device.
41 This is useful for userspace to be able to better identify an
44 The contents of the label are free-form, but there are some
47 For proximity sensors which give the proximity (of a person) to
48 a certain wlan or wwan antenna the following standardized labels
53 * "proximity-wifi-lte"
54 * "proximity-wifi-left"
55 * "proximity-wifi-right"
57 These are used to indicate to userspace that these proximity
58 sensors may be used to tune transmit power to ensure that
59 Specific Absorption Rate (SAR) limits are honored.
60 The "-left" and "-right" labels are for devices with multiple
63 In some laptops/tablets the standardized proximity sensor labels
64 instead indicate proximity to a specific part of the device:
66 * "proximity-palmrest" indicates proximity to the keyboard's palmrest
67 * "proximity-palmrest-left" indicates proximity to the left part of the palmrest
68 * "proximity-palmrest-right" indicates proximity to the right part of the palmrest
69 * "proximity-lap" indicates the device is being used on someone's lap
71 Note "proximity-lap" is special in that its value may be
72 calculated by firmware from other sensor readings, rather then
73 being a raw sensor reading.
75 For accelerometers used in 2-in-1s with 360° (yoga-style) hinges,
76 which have an accelerometer in both their base and their display,
77 the following standardized labels are used:
82 What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
84 Contact: linux-iio@vger.kernel.org
86 String identifying current posix clock used to timestamp
87 buffered samples and events for device X.
89 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
90 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
91 What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
92 What: /sys/bus/iio/devices/triggerX/sampling_frequency
94 Contact: linux-iio@vger.kernel.org
96 Some devices have internal clocks. This parameter sets the
97 resulting sampling frequency. In many devices this
98 parameter has an effect on input filters etc. rather than
99 simply controlling when the input is sampled. As this
100 affects data ready triggers, hardware buffers and the sysfs
101 direct access interfaces, it may be found in any of the
102 relevant directories. If it affects all of the above
103 then it is to be found in the base device directory.
105 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
106 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
107 What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
108 What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
109 What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
110 KernelVersion: 2.6.35
111 Contact: linux-iio@vger.kernel.org
113 When the internal sampling clock can only take a specific set of
114 frequencies, we can specify the available values with:
116 - a small discrete set of values like "0 2 4 6 8"
117 - a range with minimum, step and maximum frequencies like
120 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
121 KernelVersion: 2.6.38
122 Contact: linux-iio@vger.kernel.org
124 Hardware dependent ADC oversampling. Controls the sampling ratio
125 of the digital filter if available.
127 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
128 KernelVersion: 2.6.38
129 Contact: linux-iio@vger.kernel.org
131 Hardware dependent values supported by the oversampling filter.
133 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
134 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
135 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
136 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
137 KernelVersion: 2.6.35
138 Contact: linux-iio@vger.kernel.org
140 Raw (unscaled no bias removal etc.) voltage measurement from
141 channel Y. In special cases where the channel does not
142 correspond to externally available input one of the named
143 versions may be used. The number must always be specified and
144 unique to allow association with event codes. Units after
145 application of scale and offset are millivolts.
147 Channels with 'i' and 'q' modifiers always exist in pairs and both
148 channels refer to the same signal. The 'i' channel contains the in-phase
149 component of the signal while the 'q' channel contains the quadrature
152 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
153 KernelVersion: 2.6.35
154 Contact: linux-iio@vger.kernel.org
156 Raw (unscaled) differential voltage measurement equivalent to
157 channel Y - channel Z where these channel numbers apply to the
158 physically equivalent inputs when non differential readings are
159 separately available. In differential only parts, then all that
160 is required is a consistent labeling. Units after application
161 of scale and offset are millivolts.
163 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
164 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
166 Contact: linux-iio@vger.kernel.org
168 Raw (unscaled no bias removal etc.) current measurement from
169 channel Y. In special cases where the channel does not
170 correspond to externally available input one of the named
171 versions may be used. The number must always be specified and
172 unique to allow association with event codes. Units after
173 application of scale and offset are milliamps.
175 What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
177 Contact: linux-iio@vger.kernel.org
179 Raw (unscaled no bias removal etc.) power measurement from
180 channel Y. The number must always be specified and
181 unique to allow association with event codes. Units after
182 application of scale and offset are milliwatts.
184 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
186 Contact: linux-iio@vger.kernel.org
188 Raw capacitance measurement from channel Y. Units after
189 application of scale and offset are nanofarads.
191 What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
193 Contact: linux-iio@vger.kernel.org
195 Raw differential capacitance measurement equivalent to
196 channel Y - channel Z where these channel numbers apply to the
197 physically equivalent inputs when non differential readings are
198 separately available. In differential only parts, then all that
199 is required is a consistent labeling. Units after application
200 of scale and offset are nanofarads.
202 What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
203 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
204 What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
205 What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
206 What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
207 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
208 KernelVersion: 2.6.35
209 Contact: linux-iio@vger.kernel.org
211 Raw (unscaled no bias removal etc.) temperature measurement.
212 If an axis is specified it generally means that the temperature
213 sensor is associated with one part of a compound device (e.g.
214 a gyroscope axis). The ambient and object modifiers distinguish
215 between ambient (reference) and distant temperature for contact-
216 less measurements. Units after application of scale and offset
217 are milli degrees Celsius.
219 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
220 KernelVersion: 2.6.38
221 Contact: linux-iio@vger.kernel.org
223 Scaled temperature measurement in milli degrees Celsius.
225 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
226 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
227 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
228 KernelVersion: 2.6.35
229 Contact: linux-iio@vger.kernel.org
231 Acceleration in direction x, y or z (may be arbitrarily assigned
232 but should match other such assignments on device).
233 Has all of the equivalent parameters as per voltageY. Units
234 after application of scale and offset are m/s^2.
236 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
237 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
238 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
240 Contact: linux-iio@vger.kernel.org
242 Gravity in direction x, y or z (may be arbitrarily assigned
243 but should match other such assignments on device).
244 Units after application of scale and offset are m/s^2.
246 What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
247 What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw
249 Contact: linux-iio@vger.kernel.org
251 Angle of rotation. Units after application of scale and offset
254 What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
255 What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
257 Contact: linux-iio@vger.kernel.org
259 Relative position in direction x or y on a pad (may be
260 arbitrarily assigned but should match other such assignments on
262 Units after application of scale and offset are milli percents
263 from the pad's size in both directions. Should be calibrated by
266 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
267 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
268 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
269 KernelVersion: 2.6.35
270 Contact: linux-iio@vger.kernel.org
272 Angular velocity about axis x, y or z (may be arbitrarily
273 assigned). Has all the equivalent parameters as per voltageY.
274 Units after application of scale and offset are radians per
277 What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
278 What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
279 What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
280 KernelVersion: 2.6.35
281 Contact: linux-iio@vger.kernel.org
283 Inclination raw reading about axis x, y or z (may be
284 arbitrarily assigned). Data converted by application of offset
285 and scale to degrees.
287 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
288 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
289 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
290 KernelVersion: 2.6.35
291 Contact: linux-iio@vger.kernel.org
293 Magnetic field along axis x, y or z (may be arbitrarily
294 assigned). Data converted by application of offset
297 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
298 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
299 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
300 KernelVersion: 2.6.36
301 Contact: linux-iio@vger.kernel.org
303 Highest value since some reset condition. These
304 attributes allow access to this and are otherwise
305 the direct equivalent of the <type>Y[_name]_raw attributes.
307 What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
308 KernelVersion: 2.6.36
309 Contact: linux-iio@vger.kernel.org
311 A computed peak value based on the sum squared magnitude of
312 the underlying value in the specified directions.
314 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
315 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
317 Contact: linux-iio@vger.kernel.org
319 Raw pressure measurement from channel Y. Units after
320 application of scale and offset are kilopascal.
322 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
323 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
325 Contact: linux-iio@vger.kernel.org
327 Scaled pressure measurement from channel Y, in kilopascal.
329 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
331 Contact: linux-iio@vger.kernel.org
333 Raw humidity measurement of air. Units after application of
334 scale and offset are milli percent.
336 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
338 Contact: linux-iio@vger.kernel.org
340 Scaled humidity measurement in milli percent.
342 What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
344 Contact: linux-iio@vger.kernel.org
346 Averaged raw measurement from channel X. The number of values
347 used for averaging is device specific. The converting rules for
348 normal raw values also applies to the averaged raw values.
350 What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
351 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
352 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
353 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
354 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
355 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
356 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
357 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
358 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
359 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
360 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
361 What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
362 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
363 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
364 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
365 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
366 What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
367 What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
368 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
369 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
370 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
371 What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
372 What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
373 What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
374 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
375 KernelVersion: 2.6.35
376 Contact: linux-iio@vger.kernel.org
378 If known for a device, offset to be added to <type>[Y]_raw prior
379 to scaling by <type>[Y]_scale in order to obtain value in the
380 <type> units as specified in <type>[Y]_raw documentation.
381 Not present if the offset is always 0 or unknown. If Y or
382 axis <x|y|z> is not present, then the offset applies to all
383 in channels of <type>.
384 May be writable if a variable offset can be applied on the
385 device. Note that this is different to calibbias which
386 is for devices (or drivers) that apply offsets to compensate
387 for variation between different instances of the part, typically
388 adjusted by using some hardware supported calibration procedure.
389 Calibbias is applied internally, offset is applied in userspace
392 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
393 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
394 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
395 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
396 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
397 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
398 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
399 What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
400 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
401 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
402 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
403 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
404 What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
405 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
406 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
407 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
408 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
409 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
410 What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
411 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
412 What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
413 What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
414 What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
415 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
416 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
417 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
418 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
419 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
420 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
421 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
422 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
423 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
424 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
425 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
426 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
427 What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
428 What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
429 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
430 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
431 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
432 KernelVersion: 2.6.35
433 Contact: linux-iio@vger.kernel.org
435 If known for a device, scale to be applied to <type>Y[_name]_raw
436 post addition of <type>[Y][_name]_offset in order to obtain the
437 measured value in <type> units as specified in
438 <type>[Y][_name]_raw documentation. If shared across all in
439 channels then Y and <x|y|z> are not present and the value is
440 called <type>[Y][_name]_scale. The peak modifier means this
441 value is applied to <type>Y[_name]_peak_raw values.
443 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
444 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
445 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
446 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
447 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
448 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
449 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
450 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
451 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
452 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
453 KernelVersion: 2.6.35
454 Contact: linux-iio@vger.kernel.org
456 Hardware applied calibration offset (assumed to fix production
458 icm42600: For this device values are real physical offsets
459 expressed in SI units (m/s^2 for accelerometers and rad/s
462 What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
463 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
465 Contact: linux-iio@vger.kernel.org
467 Available values of calibbias. Maybe expressed as either of:
469 - a small discrete set of values like "0 2 4 6 8"
470 - a range specified as "[min step max]"
472 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
473 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
474 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
475 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
476 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
477 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
478 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
479 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
480 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
481 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
482 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
483 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
484 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
485 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
486 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
487 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
488 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
489 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
490 KernelVersion: 2.6.35
491 Contact: linux-iio@vger.kernel.org
493 Hardware applied calibration scale factor (assumed to fix
494 production inaccuracies). If shared across all channels,
495 <type>_calibscale is used.
497 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
498 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
499 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
500 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
502 Contact: linux-iio@vger.kernel.org
504 Gender of the user (e.g.: male, female) used by some pedometers
505 to compute the stride length, distance, speed and activity
508 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
509 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
510 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
511 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
513 Contact: linux-iio@vger.kernel.org
515 Lists all available gender values (e.g.: male, female).
517 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
518 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
519 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
520 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
522 Contact: linux-iio@vger.kernel.org
524 Height of the user (in meters) used by some pedometers
525 to compute the stride length, distance, speed and activity
528 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
530 Contact: linux-iio@vger.kernel.org
532 Weight of the user (in kg). It is needed by some pedometers
533 to compute the calories burnt by the user.
535 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
536 What: /sys/.../iio:deviceX/in_anglvel_scale_available
537 What: /sys/.../iio:deviceX/in_magn_scale_available
538 What: /sys/.../iio:deviceX/in_illuminance_scale_available
539 What: /sys/.../iio:deviceX/in_intensity_scale_available
540 What: /sys/.../iio:deviceX/in_proximity_scale_available
541 What: /sys/.../iio:deviceX/in_voltageX_scale_available
542 What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
543 What: /sys/.../iio:deviceX/out_voltageX_scale_available
544 What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
545 What: /sys/.../iio:deviceX/in_capacitance_scale_available
546 What: /sys/.../iio:deviceX/in_pressure_scale_available
547 What: /sys/.../iio:deviceX/in_pressureY_scale_available
548 KernelVersion: 2.6.35
549 Contact: linux-iio@vger.kernel.org
551 If a discrete set of scale values is available, they
552 are listed in this attribute.
554 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
555 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
556 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
557 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
558 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
559 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
560 KernelVersion: 2.6.35
561 Contact: linux-iio@vger.kernel.org
563 Hardware applied gain factor. If shared across all channels,
564 <type>_hardwaregain is used.
566 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
568 Contact: linux-iio@vger.kernel.org
570 Lists all available hardware applied gain factors. Shared across all
573 What: /sys/.../in_accel_filter_low_pass_3db_frequency
574 What: /sys/.../in_magn_filter_low_pass_3db_frequency
575 What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
577 Contact: linux-iio@vger.kernel.org
579 If a known or controllable low pass filter is applied
580 to the underlying data channel, then this parameter
581 gives the 3dB frequency of the filter in Hz.
583 What: /sys/.../in_accel_filter_high_pass_3db_frequency
584 What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
585 What: /sys/.../in_magn_filter_high_pass_3db_frequency
587 Contact: linux-iio@vger.kernel.org
589 If a known or controllable high pass filter is applied
590 to the underlying data channel, then this parameter
591 gives the 3dB frequency of the filter in Hz.
593 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
594 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
595 KernelVersion: 2.6.37
596 Contact: linux-iio@vger.kernel.org
598 Raw (unscaled, no bias etc.) output voltage for
599 channel Y. The number must always be specified and
600 unique if the output corresponds to a single channel.
601 While DAC like devices typically use out_voltage,
602 a continuous frequency generating device, such as
603 a DDS or PLL should use out_altvoltage.
605 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
606 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
607 KernelVersion: 2.6.37
608 Contact: linux-iio@vger.kernel.org
610 Raw (unscaled, no bias etc.) output voltage for an aggregate of
611 channel Y, channel Z, etc. This interface is available in cases
612 where a single output sets the value for multiple channels
615 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
616 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
617 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
618 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
619 KernelVersion: 2.6.38
620 Contact: linux-iio@vger.kernel.org
622 Specifies the output powerdown mode.
623 DAC output stage is disconnected from the amplifier and
624 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
625 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
626 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
627 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
628 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
629 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
630 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
631 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
632 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
633 three_state: left floating.
634 For a list of available output power down options read
635 outX_powerdown_mode_available. If Y is not present the
636 mode is shared across all outputs.
638 What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
639 What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
640 What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
641 What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
642 KernelVersion: 2.6.38
643 Contact: linux-iio@vger.kernel.org
645 Lists all available output power down modes.
646 If Y is not present the mode is shared across all outputs.
648 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
649 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
650 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
651 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
652 KernelVersion: 2.6.38
653 Contact: linux-iio@vger.kernel.org
655 Writing 1 causes output Y to enter the power down mode specified
656 by the corresponding outY_powerdown_mode. DAC output stage is
657 disconnected from the amplifier. Clearing returns to normal
658 operation. Y may be suppressed if all outputs are controlled
661 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
663 Contact: linux-iio@vger.kernel.org
665 Output frequency for channel Y in Hz. The number must always be
666 specified and unique if the output corresponds to a single
668 Some drivers have additional constraints:
669 ADF4371 has an integrated VCO with fundamendal output
670 frequency ranging from 4000000000 Hz 8000000000 Hz.
672 out_altvoltage0_frequency:
673 A divide by 1, 2, 4, 8, 16, 32 or circuit generates
674 frequencies from 62500000 Hz to 8000000000 Hz.
675 out_altvoltage1_frequency:
676 This channel duplicates the channel 0 frequency
677 out_altvoltage2_frequency:
678 A frequency doubler generates frequencies from
679 8000000000 Hz to 16000000000 Hz.
680 out_altvoltage3_frequency:
681 A frequency quadrupler generates frequencies from
682 16000000000 Hz to 32000000000 Hz.
684 Note: writes to one of the channels will affect the frequency of
685 all the other channels, since it involves changing the VCO
686 fundamental output frequency.
688 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
690 Contact: linux-iio@vger.kernel.org
692 Phase in radians of one frequency/clock output Y
693 (out_altvoltageY) relative to another frequency/clock output
694 (out_altvoltageZ) of the device X. The number must always be
695 specified and unique if the output corresponds to a single
698 What: /sys/bus/iio/devices/iio:deviceX/out_currentY_raw
701 Contact: Johan Hovold <jhovold@gmail.com>
703 Set/get output current for channel Y. Units after application
704 of scale and offset are milliamps.
705 For some devices current channels are used to specify
706 current supplied to elements used in taking a measurement
707 of a different type. E.g. LED currents.
709 What: /sys/bus/iio/devices/iio:deviceX/events
710 KernelVersion: 2.6.35
711 Contact: linux-iio@vger.kernel.org
713 Configuration of which hardware generated events are passed up
716 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
717 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
718 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
719 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
720 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
721 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
722 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
723 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
724 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
725 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
726 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
727 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
728 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
729 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
730 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
731 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
732 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
733 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
734 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
735 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
736 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
737 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
738 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
739 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
740 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
741 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
742 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
743 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
744 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
745 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
746 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
747 What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
748 What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
749 What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
750 What: /sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
751 KernelVersion: 2.6.37
752 Contact: linux-iio@vger.kernel.org
754 Event generated when channel passes a threshold in the specified
755 (_rising|_falling) direction. If the direction is not specified,
756 then either the device will report an event which ever direction
757 a single threshold value is passed in (e.g.
758 <type>[Y][_name]_<raw|input>_thresh_value) or
759 <type>[Y][_name]_<raw|input>_thresh_rising_value and
760 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
761 different values, but the device can only enable both thresholds
764 Note the driver will assume the last p events requested are
765 to be enabled where p is how many it supports (which may vary
766 depending on the exact set requested. So if you want to be
767 sure you have set what you think you have, check the contents of
768 these attributes after everything is configured. Drivers may
769 have to buffer any parameters so that they are consistent when
770 a given event type is enabled at a future point (and not those for
771 whatever event was previously enabled).
773 What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
774 What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
775 What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
776 What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
777 What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
778 What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
779 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
780 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
781 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
782 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
783 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
784 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
785 What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
786 What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
787 What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
788 What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
789 What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
790 What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
791 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
792 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
793 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
794 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
795 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
796 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
797 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
798 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
799 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
800 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
801 What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
802 What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
803 What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
804 What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
805 KernelVersion: 2.6.37
806 Contact: linux-iio@vger.kernel.org
808 Event generated when channel passes a threshold on the rate of
809 change (1st differential) in the specified (_rising|_falling)
810 direction. If the direction is not specified, then either the
811 device will report an event which ever direction a single
812 threshold value is passed in (e.g.
813 <type>[Y][_name]_<raw|input>_roc_value) or
814 <type>[Y][_name]_<raw|input>_roc_rising_value and
815 <type>[Y][_name]_<raw|input>_roc_falling_value may take
816 different values, but the device can only enable both rate of
817 change thresholds or neither.
819 Note the driver will assume the last p events requested are
820 to be enabled where p is however many it supports (which may
821 vary depending on the exact set requested. So if you want to be
822 sure you have set what you think you have, check the contents of
823 these attributes after everything is configured. Drivers may
824 have to buffer any parameters so that they are consistent when
825 a given event type is enabled a future point (and not those for
826 whatever event was previously enabled).
828 What: /sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
829 What: /sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
831 Contact: linux-iio@vger.kernel.org
833 Adaptive thresholds are similar to normal fixed thresholds
834 but the value is expressed as an offset from a value which
835 provides a low frequency approximation of the channel itself.
836 Thus these detect if a rapid change occurs in the specified
837 direction which crosses tracking value + offset.
838 Tracking value calculation is devices specific.
840 What: /sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
841 What: /sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
843 Contact: linux-iio@vger.kernel.org
845 When adaptive thresholds are used, the tracking signal
846 may adjust too slowly to step changes in the raw signal.
847 Thus these specify the time in seconds for which the
848 difference between the slow tracking signal and the raw
849 signal is allowed to remain out-of-range before a reset
850 event occurs in which the tracking signal is made equal
851 to the raw signal, allowing slow tracking to resume and the
852 adaptive threshold event detection to function as expected.
854 What: /sys/.../events/in_accel_thresh_rising_value
855 What: /sys/.../events/in_accel_thresh_falling_value
856 What: /sys/.../events/in_accel_x_raw_thresh_rising_value
857 What: /sys/.../events/in_accel_x_raw_thresh_falling_value
858 What: /sys/.../events/in_accel_y_raw_thresh_rising_value
859 What: /sys/.../events/in_accel_y_raw_thresh_falling_value
860 What: /sys/.../events/in_accel_z_raw_thresh_rising_value
861 What: /sys/.../events/in_accel_z_raw_thresh_falling_value
862 What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
863 What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
864 What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
865 What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
866 What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
867 What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
868 What: /sys/.../events/in_magn_x_raw_thresh_rising_value
869 What: /sys/.../events/in_magn_x_raw_thresh_falling_value
870 What: /sys/.../events/in_magn_y_raw_thresh_rising_value
871 What: /sys/.../events/in_magn_y_raw_thresh_falling_value
872 What: /sys/.../events/in_magn_z_raw_thresh_rising_value
873 What: /sys/.../events/in_magn_z_raw_thresh_falling_value
874 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
875 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
876 What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
877 What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
878 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
879 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
880 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
881 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
882 What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
883 What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
884 What: /sys/.../events/in_voltageY_raw_thresh_rising_value
885 What: /sys/.../events/in_voltageY_raw_thresh_falling_value
886 What: /sys/.../events/in_tempY_raw_thresh_rising_value
887 What: /sys/.../events/in_tempY_raw_thresh_falling_value
888 What: /sys/.../events/in_illuminance0_thresh_falling_value
889 What: /sys/.../events/in_illuminance0_thresh_rising_value
890 What: /sys/.../events/in_proximity0_thresh_falling_value
891 What: /sys/.../events/in_proximity0_thresh_rising_value
892 What: /sys/.../events/in_illuminance_thresh_rising_value
893 What: /sys/.../events/in_illuminance_thresh_falling_value
894 What: /sys/.../events/in_capacitanceY_thresh_rising_value
895 What: /sys/.../events/in_capacitanceY_thresh_falling_value
896 What: /sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
897 What: /sys/.../events/in_capacitanceY_thresh_falling_rising_value
898 KernelVersion: 2.6.37
899 Contact: linux-iio@vger.kernel.org
901 Specifies the value of threshold that the device is comparing
902 against for the events enabled by
903 <type>Y[_name]_thresh[_rising|falling]_en.
905 If separate attributes exist for the two directions, but
906 direction is not specified for this attribute, then a single
907 threshold value applies to both directions.
909 The raw or input element of the name indicates whether the
910 value is in raw device units or in processed units (as _raw
911 and _input do on sysfs direct channel read attributes).
913 What: /sys/.../events/in_accel_scale
914 What: /sys/.../events/in_accel_peak_scale
915 What: /sys/.../events/in_anglvel_scale
916 What: /sys/.../events/in_magn_scale
917 What: /sys/.../events/in_rot_from_north_magnetic_scale
918 What: /sys/.../events/in_rot_from_north_true_scale
919 What: /sys/.../events/in_voltage_scale
920 What: /sys/.../events/in_voltage_supply_scale
921 What: /sys/.../events/in_temp_scale
922 What: /sys/.../events/in_illuminance_scale
923 What: /sys/.../events/in_proximity_scale
925 Contact: linux-iio@vger.kernel.org
927 Specifies the conversion factor from the standard units
928 to device specific units used to set the event trigger
931 What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
932 What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
933 What: /sys/.../events/in_accel_x_thresh_either_hysteresis
934 What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
935 What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
936 What: /sys/.../events/in_accel_y_thresh_either_hysteresis
937 What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
938 What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
939 What: /sys/.../events/in_accel_z_thresh_either_hysteresis
940 What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
941 What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
942 What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
943 What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
944 What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
945 What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
946 What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
947 What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
948 What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
949 What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
950 What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
951 What: /sys/.../events/in_magn_x_thresh_either_hysteresis
952 What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
953 What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
954 What: /sys/.../events/in_magn_y_thresh_either_hysteresis
955 What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
956 What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
957 What: /sys/.../events/in_magn_z_thresh_either_hysteresis
958 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
959 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
960 What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
961 What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
962 What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
963 What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
964 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
965 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
966 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
967 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
968 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
969 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
970 What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
971 What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
972 What: /sys/.../events/in_voltageY_thresh_either_hysteresis
973 What: /sys/.../events/in_tempY_thresh_rising_hysteresis
974 What: /sys/.../events/in_tempY_thresh_falling_hysteresis
975 What: /sys/.../events/in_tempY_thresh_either_hysteresis
976 What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
977 What: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
978 What: /sys/.../events/in_illuminance0_thresh_either_hysteresis
979 What: /sys/.../events/in_proximity0_thresh_falling_hysteresis
980 What: /sys/.../events/in_proximity0_thresh_rising_hysteresis
981 What: /sys/.../events/in_proximity0_thresh_either_hysteresis
983 Contact: linux-iio@vger.kernel.org
985 Specifies the hysteresis of threshold that the device is comparing
986 against for the events enabled by
987 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
988 If separate attributes exist for the two directions, but
989 direction is not specified for this attribute, then a single
990 hysteresis value applies to both directions.
992 For falling events the hysteresis is added to the _value attribute for
993 this event to get the upper threshold for when the event goes back to
994 normal, for rising events the hysteresis is subtracted from the _value
995 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
996 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
997 will get activated once in_voltage0_raw goes above 1200 and will become
998 deactivated again once the value falls below 1150.
1000 What: /sys/.../events/in_accel_x_raw_roc_rising_value
1001 What: /sys/.../events/in_accel_x_raw_roc_falling_value
1002 What: /sys/.../events/in_accel_y_raw_roc_rising_value
1003 What: /sys/.../events/in_accel_y_raw_roc_falling_value
1004 What: /sys/.../events/in_accel_z_raw_roc_rising_value
1005 What: /sys/.../events/in_accel_z_raw_roc_falling_value
1006 What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
1007 What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
1008 What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
1009 What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
1010 What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
1011 What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
1012 What: /sys/.../events/in_magn_x_raw_roc_rising_value
1013 What: /sys/.../events/in_magn_x_raw_roc_falling_value
1014 What: /sys/.../events/in_magn_y_raw_roc_rising_value
1015 What: /sys/.../events/in_magn_y_raw_roc_falling_value
1016 What: /sys/.../events/in_magn_z_raw_roc_rising_value
1017 What: /sys/.../events/in_magn_z_raw_roc_falling_value
1018 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
1019 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
1020 What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
1021 What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
1022 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
1023 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
1024 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
1025 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
1026 What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
1027 What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
1028 What: /sys/.../events/in_voltageY_raw_roc_rising_value
1029 What: /sys/.../events/in_voltageY_raw_roc_falling_value
1030 What: /sys/.../events/in_tempY_raw_roc_rising_value
1031 What: /sys/.../events/in_tempY_raw_roc_falling_value
1032 KernelVersion: 2.6.37
1033 Contact: linux-iio@vger.kernel.org
1035 Specifies the value of rate of change threshold that the
1036 device is comparing against for the events enabled by
1037 <type>[Y][_name]_roc[_rising|falling]_en.
1039 If separate attributes exist for the two directions,
1040 but direction is not specified for this attribute,
1041 then a single threshold value applies to both directions.
1042 The raw or input element of the name indicates whether the
1043 value is in raw device units or in processed units (as _raw
1044 and _input do on sysfs direct channel read attributes).
1046 What: /sys/.../events/in_accel_x_thresh_rising_period
1047 What: /sys/.../events/in_accel_x_thresh_falling_period
1048 What: /sys/.../events/in_accel_x_roc_rising_period
1049 What: /sys/.../events/in_accel_x_roc_falling_period
1050 What: /sys/.../events/in_accel_y_thresh_rising_period
1051 What: /sys/.../events/in_accel_y_thresh_falling_period
1052 What: /sys/.../events/in_accel_y_roc_rising_period
1053 What: /sys/.../events/in_accel_y_roc_falling_period
1054 What: /sys/.../events/in_accel_z_thresh_rising_period
1055 What: /sys/.../events/in_accel_z_thresh_falling_period
1056 What: /sys/.../events/in_accel_z_roc_rising_period
1057 What: /sys/.../events/in_accel_z_roc_falling_period
1058 What: /sys/.../events/in_anglvel_x_thresh_rising_period
1059 What: /sys/.../events/in_anglvel_x_thresh_falling_period
1060 What: /sys/.../events/in_anglvel_x_roc_rising_period
1061 What: /sys/.../events/in_anglvel_x_roc_falling_period
1062 What: /sys/.../events/in_anglvel_y_thresh_rising_period
1063 What: /sys/.../events/in_anglvel_y_thresh_falling_period
1064 What: /sys/.../events/in_anglvel_y_roc_rising_period
1065 What: /sys/.../events/in_anglvel_y_roc_falling_period
1066 What: /sys/.../events/in_anglvel_z_thresh_rising_period
1067 What: /sys/.../events/in_anglvel_z_thresh_falling_period
1068 What: /sys/.../events/in_anglvel_z_roc_rising_period
1069 What: /sys/.../events/in_anglvel_z_roc_falling_period
1070 What: /sys/.../events/in_magn_x_thresh_rising_period
1071 What: /sys/.../events/in_magn_x_thresh_falling_period
1072 What: /sys/.../events/in_magn_x_roc_rising_period
1073 What: /sys/.../events/in_magn_x_roc_falling_period
1074 What: /sys/.../events/in_magn_y_thresh_rising_period
1075 What: /sys/.../events/in_magn_y_thresh_falling_period
1076 What: /sys/.../events/in_magn_y_roc_rising_period
1077 What: /sys/.../events/in_magn_y_roc_falling_period
1078 What: /sys/.../events/in_magn_z_thresh_rising_period
1079 What: /sys/.../events/in_magn_z_thresh_falling_period
1080 What: /sys/.../events/in_magn_z_roc_rising_period
1081 What: /sys/.../events/in_magn_z_roc_falling_period
1082 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
1083 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
1084 What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
1085 What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
1086 What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
1087 What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
1088 What: /sys/.../events/in_rot_from_north_true_roc_rising_period
1089 What: /sys/.../events/in_rot_from_north_true_roc_falling_period
1090 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
1091 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
1092 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
1093 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
1094 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
1095 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
1096 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
1097 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
1098 What: /sys/.../events/in_voltageY_supply_thresh_rising_period
1099 What: /sys/.../events/in_voltageY_supply_thresh_falling_period
1100 What: /sys/.../events/in_voltageY_supply_roc_rising_period
1101 What: /sys/.../events/in_voltageY_supply_roc_falling_period
1102 What: /sys/.../events/in_voltageY_thresh_rising_period
1103 What: /sys/.../events/in_voltageY_thresh_falling_period
1104 What: /sys/.../events/in_voltageY_roc_rising_period
1105 What: /sys/.../events/in_voltageY_roc_falling_period
1106 What: /sys/.../events/in_tempY_thresh_rising_period
1107 What: /sys/.../events/in_tempY_thresh_falling_period
1108 What: /sys/.../events/in_tempY_roc_rising_period
1109 What: /sys/.../events/in_tempY_roc_falling_period
1110 What: /sys/.../events/in_accel_x&y&z_mag_falling_period
1111 What: /sys/.../events/in_intensity0_thresh_period
1112 What: /sys/.../events/in_proximity0_thresh_period
1113 What: /sys/.../events/in_activity_still_thresh_rising_period
1114 What: /sys/.../events/in_activity_still_thresh_falling_period
1115 What: /sys/.../events/in_activity_walking_thresh_rising_period
1116 What: /sys/.../events/in_activity_walking_thresh_falling_period
1117 What: /sys/.../events/in_activity_jogging_thresh_rising_period
1118 What: /sys/.../events/in_activity_jogging_thresh_falling_period
1119 What: /sys/.../events/in_activity_running_thresh_rising_period
1120 What: /sys/.../events/in_activity_running_thresh_falling_period
1121 What: /sys/.../events/in_illuminance_thresh_either_period
1122 KernelVersion: 2.6.37
1123 Contact: linux-iio@vger.kernel.org
1125 Period of time (in seconds) for which the condition must be
1126 met before an event is generated. If direction is not
1127 specified then this period applies to both directions.
1129 What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
1130 What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
1131 What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
1133 Contact: linux-iio@vger.kernel.org
1135 If a low pass filter can be applied to the event generation
1136 this property gives its 3db frequency in Hz.
1137 A value of zero disables the filter.
1139 What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
1140 What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
1141 What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
1143 Contact: linux-iio@vger.kernel.org
1145 If a high pass filter can be applied to the event generation
1146 this property gives its 3db frequency in Hz.
1147 A value of zero disables the filter.
1149 What: /sys/.../events/in_activity_still_thresh_rising_en
1150 What: /sys/.../events/in_activity_still_thresh_falling_en
1151 What: /sys/.../events/in_activity_walking_thresh_rising_en
1152 What: /sys/.../events/in_activity_walking_thresh_falling_en
1153 What: /sys/.../events/in_activity_jogging_thresh_rising_en
1154 What: /sys/.../events/in_activity_jogging_thresh_falling_en
1155 What: /sys/.../events/in_activity_running_thresh_rising_en
1156 What: /sys/.../events/in_activity_running_thresh_falling_en
1158 Contact: linux-iio@vger.kernel.org
1160 Enables or disables activity events. Depending on direction
1161 an event is generated when sensor ENTERS or LEAVES a given state.
1163 What: /sys/.../events/in_activity_still_thresh_rising_value
1164 What: /sys/.../events/in_activity_still_thresh_falling_value
1165 What: /sys/.../events/in_activity_walking_thresh_rising_value
1166 What: /sys/.../events/in_activity_walking_thresh_falling_value
1167 What: /sys/.../events/in_activity_jogging_thresh_rising_value
1168 What: /sys/.../events/in_activity_jogging_thresh_falling_value
1169 What: /sys/.../events/in_activity_running_thresh_rising_value
1170 What: /sys/.../events/in_activity_running_thresh_falling_value
1172 Contact: linux-iio@vger.kernel.org
1174 Confidence value (in units as percentage) to be used
1175 for deciding when an event should be generated. E.g for
1176 running: If the confidence value reported by the sensor
1177 is greater than in_activity_running_thresh_rising_value
1178 then the sensor ENTERS running state. Conversely, if the
1179 confidence value reported by the sensor is lower than
1180 in_activity_running_thresh_falling_value then the sensor
1181 is LEAVING running state.
1183 What: /sys/.../iio:deviceX/events/in_accel_mag_en
1184 What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
1185 What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
1186 What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
1187 What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1188 What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1189 What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
1190 What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1191 What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1192 What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
1193 What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1194 What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1195 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1196 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1197 KernelVersion: 2.6.37
1198 Contact: linux-iio@vger.kernel.org
1200 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1201 magnitude of the channel is compared to the threshold, not its
1204 What: /sys/.../events/in_accel_raw_mag_value
1205 What: /sys/.../events/in_accel_x_raw_mag_rising_value
1206 What: /sys/.../events/in_accel_y_raw_mag_rising_value
1207 What: /sys/.../events/in_accel_z_raw_mag_rising_value
1208 KernelVersion: 2.6.37
1209 Contact: linux-iio@vger.kernel.org
1211 The value to which the magnitude of the channel is compared. If
1212 number or direction is not specified, applies to all channels of
1215 What: /sys/.../events/in_steps_change_en
1217 Contact: linux-iio@vger.kernel.org
1219 Event generated when channel passes a threshold on the absolute
1220 change in value. E.g. for steps: a step change event is
1221 generated each time the user takes N steps, where N is set using
1222 in_steps_change_value.
1224 What: /sys/.../events/in_steps_change_value
1226 Contact: linux-iio@vger.kernel.org
1228 Specifies the value of change threshold that the
1229 device is comparing against for the events enabled by
1230 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1231 if set to 3, a step change event will be generated every 3
1234 What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1235 KernelVersion: 2.6.35
1236 Contact: linux-iio@vger.kernel.org
1238 The name of the trigger source being used, as per string given
1239 in /sys/class/iio/triggerY/name.
1241 What: /sys/bus/iio/devices/iio:deviceX/bufferY/length
1243 Contact: linux-iio@vger.kernel.org
1245 Number of scans contained by the buffer.
1247 What: /sys/bus/iio/devices/iio:deviceX/bufferY/enable
1249 Contact: linux-iio@vger.kernel.org
1251 Actually start the buffer capture up. Will start trigger
1252 if first device and appropriate.
1254 What: /sys/bus/iio/devices/iio:deviceX/bufferY
1256 Contact: linux-iio@vger.kernel.org
1258 Directory containing interfaces for elements that will be
1259 captured for a single triggered sample set in the buffer.
1261 Since kernel 5.11 the scan_elements attributes are merged into
1262 the bufferY directory, to be configurable per buffer.
1264 What: /sys/.../iio:deviceX/bufferY/in_accel_x_en
1265 What: /sys/.../iio:deviceX/bufferY/in_accel_y_en
1266 What: /sys/.../iio:deviceX/bufferY/in_accel_z_en
1267 What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en
1268 What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en
1269 What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en
1270 What: /sys/.../iio:deviceX/bufferY/in_magn_x_en
1271 What: /sys/.../iio:deviceX/bufferY/in_magn_y_en
1272 What: /sys/.../iio:deviceX/bufferY/in_magn_z_en
1273 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
1274 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
1275 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
1276 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
1277 What: /sys/.../iio:deviceX/bufferY/in_timestamp_en
1278 What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
1279 What: /sys/.../iio:deviceX/bufferY/in_voltageY_en
1280 What: /sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
1281 What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_en
1282 What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_en
1283 What: /sys/.../iio:deviceX/bufferY/in_voltage_i_en
1284 What: /sys/.../iio:deviceX/bufferY/in_voltage_q_en
1285 What: /sys/.../iio:deviceX/bufferY/in_incli_x_en
1286 What: /sys/.../iio:deviceX/bufferY/in_incli_y_en
1287 What: /sys/.../iio:deviceX/bufferY/in_pressureY_en
1288 What: /sys/.../iio:deviceX/bufferY/in_pressure_en
1289 What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
1290 What: /sys/.../iio:deviceX/bufferY/in_proximity_en
1292 Contact: linux-iio@vger.kernel.org
1294 Scan element control for triggered data capture.
1296 What: /sys/.../iio:deviceX/bufferY/in_accel_type
1297 What: /sys/.../iio:deviceX/bufferY/in_anglvel_type
1298 What: /sys/.../iio:deviceX/bufferY/in_magn_type
1299 What: /sys/.../iio:deviceX/bufferY/in_incli_type
1300 What: /sys/.../iio:deviceX/bufferY/in_voltageY_type
1301 What: /sys/.../iio:deviceX/bufferY/in_voltage_type
1302 What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
1303 What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_type
1304 What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_type
1305 What: /sys/.../iio:deviceX/bufferY/in_voltage_i_type
1306 What: /sys/.../iio:deviceX/bufferY/in_voltage_q_type
1307 What: /sys/.../iio:deviceX/bufferY/in_timestamp_type
1308 What: /sys/.../iio:deviceX/bufferY/in_pressureY_type
1309 What: /sys/.../iio:deviceX/bufferY/in_pressure_type
1310 What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
1311 What: /sys/.../iio:deviceX/bufferY/in_proximity_type
1313 Contact: linux-iio@vger.kernel.org
1315 Description of the scan element data storage within the buffer
1316 and hence the form in which it is read from user-space.
1317 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1318 be or le specifies big or little endian. s or u specifies if
1319 signed (2's complement) or unsigned. bits is the number of bits
1320 of data and storagebits is the space (after padding) that it
1321 occupies in the buffer. shift if specified, is the shift that
1322 needs to be applied prior to masking out unused bits. Some
1323 devices put their data in the middle of the transferred elements
1324 with additional information on both sides. Note that some
1325 devices will have additional information in the unused bits
1326 so to get a clean value, the bits value must be used to mask
1327 the buffer output value appropriately. The storagebits value
1328 also specifies the data alignment. So s48/64>>2 will be a
1329 signed 48 bit integer stored in a 64 bit location aligned to
1330 a 64 bit boundary. To obtain the clean value, shift right 2
1331 and apply a mask to zero the top 16 bits of the result.
1332 For other storage combinations this attribute will be extended
1335 What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1336 KernelVersion: 2.6.37
1337 Contact: linux-iio@vger.kernel.org
1339 If the type parameter can take one of a small set of values,
1340 this attribute lists them.
1342 What: /sys/.../iio:deviceX/bufferY/in_voltageY_index
1343 What: /sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
1344 What: /sys/.../iio:deviceX/bufferY/in_voltageY_i_index
1345 What: /sys/.../iio:deviceX/bufferY/in_voltageY_q_index
1346 What: /sys/.../iio:deviceX/bufferY/in_voltage_i_index
1347 What: /sys/.../iio:deviceX/bufferY/in_voltage_q_index
1348 What: /sys/.../iio:deviceX/bufferY/in_accel_x_index
1349 What: /sys/.../iio:deviceX/bufferY/in_accel_y_index
1350 What: /sys/.../iio:deviceX/bufferY/in_accel_z_index
1351 What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index
1352 What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index
1353 What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index
1354 What: /sys/.../iio:deviceX/bufferY/in_magn_x_index
1355 What: /sys/.../iio:deviceX/bufferY/in_magn_y_index
1356 What: /sys/.../iio:deviceX/bufferY/in_magn_z_index
1357 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
1358 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
1359 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
1360 What: /sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
1361 What: /sys/.../iio:deviceX/bufferY/in_incli_x_index
1362 What: /sys/.../iio:deviceX/bufferY/in_incli_y_index
1363 What: /sys/.../iio:deviceX/bufferY/in_timestamp_index
1364 What: /sys/.../iio:deviceX/bufferY/in_pressureY_index
1365 What: /sys/.../iio:deviceX/bufferY/in_pressure_index
1366 What: /sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
1367 What: /sys/.../iio:deviceX/bufferY/in_proximity_index
1369 Contact: linux-iio@vger.kernel.org
1371 A single positive integer specifying the position of this
1372 scan element in the buffer. Note these are not dependent on
1373 what is enabled and may not be contiguous. Thus for user-space
1374 to establish the full layout these must be used in conjunction
1375 with all _en attributes to establish which channels are present,
1376 and the relevant _type attributes to establish the data storage
1379 What: /sys/.../iio:deviceX/in_activity_still_input
1380 What: /sys/.../iio:deviceX/in_activity_walking_input
1381 What: /sys/.../iio:deviceX/in_activity_jogging_input
1382 What: /sys/.../iio:deviceX/in_activity_running_input
1384 Contact: linux-iio@vger.kernel.org
1386 This attribute is used to read the confidence for an activity
1387 expressed in units as percentage.
1389 What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1390 KernelVersion: 2.6.38
1391 Contact: linux-iio@vger.kernel.org
1393 This attribute is used to read the amount of quadrature error
1394 present in the device at a given time.
1396 What: /sys/.../iio:deviceX/in_accelX_power_mode
1398 Contact: linux-iio@vger.kernel.org
1400 Specifies the chip power mode.
1401 low_noise: reduce noise level from ADC,
1402 low_power: enable low current consumption.
1403 For a list of available output power modes read
1404 in_accel_power_mode_available.
1406 What: /sys/.../iio:deviceX/in_energy_input
1407 What: /sys/.../iio:deviceX/in_energy_raw
1409 Contact: linux-iio@vger.kernel.org
1411 This attribute is used to read the energy value reported by the
1412 device (e.g.: human activity sensors report energy burnt by the
1413 user). Units after application of scale are Joules.
1415 What: /sys/.../iio:deviceX/in_distance_input
1416 What: /sys/.../iio:deviceX/in_distance_raw
1418 Contact: linux-iio@vger.kernel.org
1420 This attribute is used to read the measured distance to an object
1421 or the distance covered by the user since the last reboot while
1422 activated. Units after application of scale are meters.
1424 What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1425 KernelVersion: 3.4.0
1426 Contact: linux-iio@vger.kernel.org
1428 Writing '1' stores the current device configuration into
1429 on-chip EEPROM. After power-up or chip reset the device will
1430 automatically load the saved configuration.
1432 What: /sys/.../iio:deviceX/in_proximity_raw
1433 What: /sys/.../iio:deviceX/in_proximity_input
1434 What: /sys/.../iio:deviceX/in_proximityY_raw
1436 Contact: linux-iio@vger.kernel.org
1438 Proximity measurement indicating that some
1439 object is near the sensor, usually by observing
1440 reflectivity of infrared or ultrasound emitted.
1442 Often these sensors are unit less and as such conversion
1443 to SI units is not possible. Higher proximity measurements
1444 indicate closer objects, and vice versa. Units after
1445 application of scale and offset are meters.
1447 What: /sys/.../iio:deviceX/in_illuminance_input
1448 What: /sys/.../iio:deviceX/in_illuminance_raw
1449 What: /sys/.../iio:deviceX/in_illuminanceY_input
1450 What: /sys/.../iio:deviceX/in_illuminanceY_raw
1451 What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1452 What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1453 What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1455 Contact: linux-iio@vger.kernel.org
1457 Illuminance measurement, units after application of scale
1460 What: /sys/.../iio:deviceX/in_intensityY_raw
1461 What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1462 What: /sys/.../iio:deviceX/in_intensityY_both_raw
1463 What: /sys/.../iio:deviceX/in_intensityY_uv_raw
1464 What: /sys/.../iio:deviceX/in_intensityY_duv_raw
1466 Contact: linux-iio@vger.kernel.org
1468 Unit-less light intensity. Modifiers both and ir indicate
1469 that measurements contain visible and infrared light
1470 components or just infrared light, respectively. Modifier
1471 uv indicates that measurements contain ultraviolet light
1472 components. Modifier duv indicates that measurements
1473 contain deep ultraviolet light components.
1475 What: /sys/.../iio:deviceX/in_uvindex_input
1477 Contact: linux-iio@vger.kernel.org
1479 UV light intensity index measuring the human skin's response to
1480 different wavelength of sunlight weighted according to the
1481 standardised CIE Erythemal Action Spectrum. UV index values range
1482 from 0 (low) to >=11 (extreme).
1484 What: /sys/.../iio:deviceX/in_intensity_integration_time
1485 What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1486 What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1487 What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1488 What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1489 What: /sys/.../iio:deviceX/in_illuminance_integration_time
1491 Contact: linux-iio@vger.kernel.org
1493 This attribute is used to get/set the integration time in
1494 seconds. If shared across all channels of a given type,
1495 <type>_integration_time is used.
1497 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1499 Contact: linux-iio@vger.kernel.org
1501 Number of seconds in which to compute speed.
1503 What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1505 Contact: linux-iio@vger.kernel.org
1507 Raw value of quaternion components using a format
1508 x y z w. Here x, y, and z component represents the axis about
1509 which a rotation will occur and w component represents the
1512 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1513 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1514 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1515 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1517 Contact: linux-iio@vger.kernel.org
1519 Raw value of rotation from true/magnetic north measured with
1520 or without compensation from tilt sensors.
1522 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1523 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1524 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1526 Contact: linux-iio@vger.kernel.org
1528 Raw current measurement from channel X. Units are in milliamps
1529 after application of scale and offset. If no offset or scale is
1530 present, output should be considered as processed with the
1533 Channels with 'i' and 'q' modifiers always exist in pairs and both
1534 channels refer to the same signal. The 'i' channel contains the in-phase
1535 component of the signal while the 'q' channel contains the quadrature
1538 What: /sys/.../iio:deviceX/in_energy_en
1539 What: /sys/.../iio:deviceX/in_distance_en
1540 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1541 What: /sys/.../iio:deviceX/in_steps_en
1543 Contact: linux-iio@vger.kernel.org
1545 Activates a device feature that runs in firmware/hardware.
1546 E.g. for steps: the pedometer saves power while not used;
1547 when activated, it will count the steps taken by the user in
1548 firmware and export them through in_steps_input.
1550 What: /sys/.../iio:deviceX/in_steps_input
1552 Contact: linux-iio@vger.kernel.org
1554 This attribute is used to read the number of steps taken by the user
1555 since the last reboot while activated.
1557 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1558 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1560 Contact: linux-iio@vger.kernel.org
1562 This attribute is used to read the current speed value of the
1563 user (which is the norm or magnitude of the velocity vector).
1564 Units after application of scale are m/s.
1566 What: /sys/.../iio:deviceX/in_steps_debounce_count
1568 Contact: linux-iio@vger.kernel.org
1570 Specifies the number of steps that must occur within
1571 in_steps_filter_debounce_time for the pedometer to decide the
1572 consumer is making steps.
1574 What: /sys/.../iio:deviceX/in_steps_debounce_time
1576 Contact: linux-iio@vger.kernel.org
1578 Specifies number of seconds in which we compute the steps
1579 that occur in order to decide if the consumer is making steps.
1581 What: /sys/bus/iio/devices/iio:deviceX/bufferY/watermark
1583 Contact: linux-iio@vger.kernel.org
1585 A single positive integer specifying the maximum number of scan
1586 elements to wait for.
1588 Poll will block until the watermark is reached.
1590 Blocking read will wait until the minimum between the requested
1591 read amount or the low water mark is available.
1593 Non-blocking read will retrieve the available samples from the
1594 buffer even if there are less samples then watermark level. This
1595 allows the application to block on poll with a timeout and read
1596 the available samples after the timeout expires and thus have a
1597 maximum delay guarantee.
1599 What: /sys/bus/iio/devices/iio:deviceX/bufferY/data_available
1601 Contact: linux-iio@vger.kernel.org
1603 A read-only value indicating the bytes of data available in the
1604 buffer. In the case of an output buffer, this indicates the
1605 amount of empty space available to write data to. In the case of
1606 an input buffer, this indicates the amount of data available for
1609 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1611 Contact: linux-iio@vger.kernel.org
1613 A read-only boolean value that indicates if the hardware fifo is
1614 currently enabled or disabled. If the device does not have a
1615 hardware fifo this entry is not present.
1616 The hardware fifo is enabled when the buffer is enabled if the
1617 current hardware fifo watermark level is set and other current
1618 device settings allows it (e.g. if a trigger is set that samples
1619 data differently that the hardware fifo does then hardware fifo
1622 If the hardware fifo is enabled and the level of the hardware
1623 fifo reaches the hardware fifo watermark level the device will
1624 flush its hardware fifo to the device buffer. Doing a non
1625 blocking read on the device when no samples are present in the
1626 device buffer will also force a flush.
1628 When the hardware fifo is enabled there is no need to use a
1629 trigger to use buffer mode since the watermark settings
1630 guarantees that the hardware fifo is flushed to the device
1633 What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1635 Contact: linux-iio@vger.kernel.org
1637 A read/write property to provide capability to delay reporting of
1638 samples till a timeout is reached. This allows host processors to
1639 sleep, while the sensor is storing samples in its internal fifo.
1640 The maximum timeout in seconds can be specified by setting
1641 hwfifo_timeout.The current delay can be read by reading
1642 hwfifo_timeout. A value of 0 means that there is no timeout.
1644 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1646 Contact: linux-iio@vger.kernel.org
1648 Read-only entry that contains a single integer specifying the
1649 current watermark level for the hardware fifo. If the device
1650 does not have a hardware fifo this entry is not present.
1651 The watermark level for the hardware fifo is set by the driver
1652 based on the value set by the user in buffer/watermark but
1653 taking into account hardware limitations (e.g. most hardware
1654 buffers are limited to 32-64 samples, some hardware buffers
1655 watermarks are fixed or have minimum levels). A value of 0
1656 means that the hardware watermark is unset.
1658 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1660 Contact: linux-iio@vger.kernel.org
1662 A single positive integer specifying the minimum watermark level
1663 for the hardware fifo of this device. If the device does not
1664 have a hardware fifo this entry is not present.
1666 If the user sets buffer/watermark to a value less than this one,
1667 then the hardware watermark will remain unset.
1669 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1671 Contact: linux-iio@vger.kernel.org
1673 A single positive integer specifying the maximum watermark level
1674 for the hardware fifo of this device. If the device does not
1675 have a hardware fifo this entry is not present.
1677 If the user sets buffer/watermark to a value greater than this
1678 one, then the hardware watermark will be capped at this value.
1680 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1682 Contact: linux-iio@vger.kernel.org
1684 A list of positive integers specifying the available watermark
1685 levels for the hardware fifo. This entry is optional and if it
1686 is not present it means that all the values between
1687 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1689 If the user sets buffer/watermark to a value greater than
1690 hwfifo_watermak_min but not equal to any of the values in this
1691 list, the driver will chose an appropriate value for the
1692 hardware fifo watermark level.
1694 What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1695 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1696 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1697 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1699 Contact: linux-iio@vger.kernel.org
1701 The emissivity ratio of the surface in the field of view of the
1702 contactless temperature sensor. Emissivity varies from 0 to 1,
1703 with 1 being the emissivity of a black body.
1705 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1706 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1707 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1709 Contact: linux-iio@vger.kernel.org
1711 Hardware applied number of measurements for acquiring one
1712 data point. The HW will do <type>[_name]_oversampling_ratio
1713 measurements and return the average value as output data. Each
1714 value resulted from <type>[_name]_oversampling_ratio measurements
1715 is considered as one sample for <type>[_name]_sampling_frequency.
1717 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1718 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1719 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1720 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1721 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1722 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1723 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1724 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1725 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
1726 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
1727 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1728 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1730 Contact: linux-iio@vger.kernel.org
1732 Raw (unscaled no offset etc.) reading of a substance. Units
1733 after application of scale and offset are percents.
1735 What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1736 What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1737 What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1738 What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1740 Contact: linux-iio@vger.kernel.org
1742 Raw (unscaled no offset etc.) resistance reading that can be processed
1745 What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1746 KernelVersion: 4.1.0
1747 Contact: linux-iio@vger.kernel.org
1749 '1' (enable) or '0' (disable) specifying the enable
1750 of heater function. Same reading values apply.
1752 This ABI is especially applicable for humidity sensors
1753 to heatup the device and get rid of any condensation
1754 in some humidity environment
1756 What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1758 Contact: linux-iio@vger.kernel.org
1760 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1761 base-10 logarithm of hydrodium ions in a litre of water.
1763 What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
1764 What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1765 What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1766 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1767 What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1769 Contact: linux-iio@vger.kernel.org
1771 Mounting matrix for IIO sensors. This is a rotation matrix which
1772 informs userspace about sensor chip's placement relative to the
1773 main hardware it is mounted on.
1775 Main hardware placement is defined according to the local
1776 reference frame related to the physical quantity the sensor
1779 Given that the rotation matrix is defined in a board specific
1780 way (platform data and / or device-tree), the main hardware
1781 reference frame definition is left to the implementor's choice
1782 (see below for a magnetometer example).
1784 Applications should apply this rotation matrix to samples so
1785 that when main hardware reference frame is aligned onto local
1786 reference frame, then sensor chip reference frame is also
1787 perfectly aligned with it.
1789 Matrix is a 3x3 unitary matrix and typically looks like
1790 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1791 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1792 are perfectly aligned with each other.
1794 For example, a mounting matrix for a magnetometer sensor informs
1795 userspace about sensor chip's ORIENTATION relative to the main
1798 More specifically, main hardware orientation is defined with
1799 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1801 * Y is in the ground plane and positive towards magnetic North ;
1802 * X is in the ground plane, perpendicular to the North axis and
1803 positive towards the East ;
1804 * Z is perpendicular to the ground plane and positive upwards.
1806 An implementor might consider that for a hand-held device, a
1807 'natural' orientation would be 'front facing camera at the top'.
1808 The main hardware reference frame could then be described as :
1810 * Y is in the plane of the screen and is positive towards the
1812 * X is in the plane of the screen, perpendicular to Y axis, and
1813 positive towards the right hand side of the screen ;
1814 * Z is perpendicular to the screen plane and positive out of the
1817 Another example for a quadrotor UAV might be :
1819 * Y is in the plane of the propellers and positive towards the
1821 * X is in the plane of the propellers, perpendicular to Y axis,
1822 and positive towards the starboard side of the UAV ;
1823 * Z is perpendicular to propellers plane and positive upwards.
1825 What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1827 Contact: linux-iio@vger.kernel.org
1829 Raw (unscaled no offset etc.) electric conductivity reading that
1830 can be processed to siemens per meter.
1832 What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
1834 Contact: linux-iio@vger.kernel.org
1836 This interface is deprecated; please use the Counter subsystem.
1838 Raw counter device counts from channel Y. For quadrature
1839 counters, multiplication by an available [Y]_scale results in
1840 the counts of a single quadrature signal phase from channel Y.
1842 What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1844 Contact: linux-iio@vger.kernel.org
1846 This interface is deprecated; please use the Counter subsystem.
1848 Raw counter device index value from channel Y. This attribute
1849 provides an absolute positional reference (e.g. a pulse once per
1850 revolution) which may be used to home positional systems as
1853 What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1855 Contact: linux-iio@vger.kernel.org
1857 This interface is deprecated; please use the Counter subsystem.
1859 A list of possible counting directions which are:
1861 - "up" : counter device is increasing.
1862 - "down": counter device is decreasing.
1864 What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1866 Contact: linux-iio@vger.kernel.org
1868 This interface is deprecated; please use the Counter subsystem.
1870 Raw counter device counters direction for channel Y.
1872 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_label
1873 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_label
1875 Contact: linux-iio@vger.kernel.org
1877 Optional symbolic label to a device channel.
1878 If a label is defined for this channel add that to the channel
1879 specific attributes. This is useful for userspace to be able to
1880 better identify an individual channel.
1882 What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1884 Contact: linux-iio@vger.kernel.org
1886 Raw (unscaled) phase difference reading from channel Y
1887 that can be processed to radians.
1889 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1890 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1891 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1892 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1893 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1894 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1895 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1896 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1898 Contact: linux-iio@vger.kernel.org
1900 Mass concentration reading of particulate matter in ug / m3.
1901 pmX consists of particles with aerodynamic diameter less or
1902 equal to X micrometers.
1904 What: /sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
1907 Contact: linux-iio@vger.kernel.org
1909 List of valid periods (in seconds) for which the light intensity
1910 must be above the threshold level before interrupt is asserted.
1912 What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
1914 Contact: linux-iio@vger.kernel.org
1916 Center frequency in Hz for a notch filter. Used i.e. for line
1919 What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
1921 Contact: linux-iio@vger.kernel.org
1923 One of the following thermocouple types: B, E, J, K, N, R, S, T.
1925 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
1926 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
1928 Contact: linux-iio@vger.kernel.org
1930 Calibrated ambient temperature for object temperature
1931 calculation in milli degrees Celsius.
1933 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
1934 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
1935 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
1937 Contact: linux-iio@vger.kernel.org
1939 Unscaled light intensity according to CIE 1931/DIN 5033 color space.
1940 Units after application of scale are nano nanowatts per square meter.
1942 What: /sys/bus/iio/devices/iio:deviceX/in_anglY_label
1944 Contact: linux-iio@vger.kernel.org
1946 Optional symbolic label for channel Y.
1947 For Intel hid hinge sensor, the label values are:
1948 hinge, keyboard, screen. It means the three channels
1949 each correspond respectively to hinge angle, keyboard angle,
1952 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative
1953 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative
1955 Contact: linux-iio@vger.kernel.org
1957 Specify the percent for light sensor relative to the channel
1958 absolute value that a data field should change before an event
1959 is generated. Units are a percentage of the prior reading.
projects / linux-2.6-microblaze.git / blob