1What:		/sys/bus/iio/devices/iio:deviceX
2KernelVersion:	2.6.35
3Contact:	linux-iio@vger.kernel.org
4Description:
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
9What:		/sys/bus/iio/devices/triggerX
10KernelVersion:	2.6.35
11Contact:	linux-iio@vger.kernel.org
12Description:
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
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.
22
23What:		/sys/bus/iio/devices/iio:deviceX/buffer
24KernelVersion:	2.6.35
25Contact:	linux-iio@vger.kernel.org
26Description:
27		Directory of attributes relating to the buffer for the device.
28
29What:		/sys/bus/iio/devices/iio:deviceX/name
30KernelVersion:	2.6.35
31Contact:	linux-iio@vger.kernel.org
32Description:
33		Description of the physical chip / device for device X.
34		Typically a part number.
35
36What:		/sys/bus/iio/devices/iio:deviceX/label
37KernelVersion:	5.8
38Contact:	linux-iio@vger.kernel.org
39Description:
40		Optional symbolic label for a device.
41		This is useful for userspace to be able to better identify an
42		individual device.
43
44		The contents of the label are free-form, but there are some
45		standardized uses:
46
47		For proximity sensors which give the proximity (of a person) to
48		a certain wlan or wwan antenna the following standardized labels
49		are used:
50
51		* "proximity-wifi"
52		* "proximity-lte"
53		* "proximity-wifi-lte"
54		* "proximity-wifi-left"
55		* "proximity-wifi-right"
56
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
61		antennas.
62
63		In some laptops/tablets the standardized proximity sensor labels
64		instead	indicate proximity to a specific part of the device:
65
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
70
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.
74
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:
78
79		* "accel-base"
80		* "accel-display"
81
82		For devices where an accelerometer is housed in the swivel camera subassembly
83		(for AR application), the following standardized label is used:
84
85		* "accel-camera"
86
87What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
88KernelVersion:	4.5
89Contact:	linux-iio@vger.kernel.org
90Description:
91		String identifying current posix clock used to timestamp
92		buffered samples and events for device X.
93
94What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency
95What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
96What:		/sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
97What:		/sys/bus/iio/devices/triggerX/sampling_frequency
98KernelVersion:	2.6.35
99Contact:	linux-iio@vger.kernel.org
100Description:
101		Some devices have internal clocks.  This parameter sets the
102		resulting sampling frequency.  In many devices this
103		parameter has an effect on input filters etc. rather than
104		simply controlling when the input is sampled.  As this
105		affects data ready triggers, hardware buffers and the sysfs
106		direct access interfaces, it may be found in any of the
107		relevant directories.  If it affects all of the above
108		then it is to be found in the base device directory.
109
110		The stm32-timer-trigger has the additional characteristic that
111		a sampling_frequency of 0 is defined to stop sampling.
112
113What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
114What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
115What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
116What:		/sys/.../iio:deviceX/buffer/sampling_frequency_available
117What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
118KernelVersion:	2.6.35
119Contact:	linux-iio@vger.kernel.org
120Description:
121		When the internal sampling clock can only take a specific set of
122		frequencies, we can specify the available values with:
123
124		- a small discrete set of values like "0 2 4 6 8"
125		- a range with minimum, step and maximum frequencies like
126		  "[min step max]"
127
128What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio
129KernelVersion:	2.6.38
130Contact:	linux-iio@vger.kernel.org
131Description:
132		Hardware dependent ADC oversampling. Controls the sampling ratio
133		of the digital filter if available.
134
135What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
136KernelVersion:	2.6.38
137Contact:	linux-iio@vger.kernel.org
138Description:
139		Hardware dependent values supported by the oversampling filter.
140
141What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
142What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
143What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
144What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
145KernelVersion:	2.6.35
146Contact:	linux-iio@vger.kernel.org
147Description:
148		Raw (unscaled no bias removal etc.) voltage measurement from
149		channel Y. In special cases where the channel does not
150		correspond to externally available input one of the named
151		versions may be used. The number must always be specified and
152		unique to allow association with event codes. Units after
153		application of scale and offset are millivolts.
154
155		Channels with 'i' and 'q' modifiers always exist in pairs and both
156		channels refer to the same signal. The 'i' channel contains the in-phase
157		component of the signal while the 'q' channel contains the quadrature
158		component.
159
160What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
161KernelVersion:	2.6.35
162Contact:	linux-iio@vger.kernel.org
163Description:
164		Raw (unscaled) differential voltage measurement equivalent to
165		channel Y - channel Z where these channel numbers apply to the
166		physically equivalent inputs when non differential readings are
167		separately available. In differential only parts, then all that
168		is required is a consistent labeling.  Units after application
169		of scale and offset are millivolts.
170
171What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_raw
172What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
173KernelVersion:	3.17
174Contact:	linux-iio@vger.kernel.org
175Description:
176		Raw (unscaled no bias removal etc.) current measurement from
177		channel Y. In special cases where the channel does not
178		correspond to externally available input one of the named
179		versions may be used. The number must always be specified and
180		unique to allow association with event codes. Units after
181		application of scale and offset are milliamps.
182
183What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_raw
184KernelVersion:	4.5
185Contact:	linux-iio@vger.kernel.org
186Description:
187		Raw (unscaled no bias removal etc.) power measurement from
188		channel Y. The number must always be specified and
189		unique to allow association with event codes. Units after
190		application of scale and offset are milliwatts.
191
192What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
193KernelVersion:	3.2
194Contact:	linux-iio@vger.kernel.org
195Description:
196		Raw capacitance measurement from channel Y. Units after
197		application of scale and offset are nanofarads.
198
199What:		/sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw
200KernelVersion:	3.2
201Contact:	linux-iio@vger.kernel.org
202Description:
203		Raw differential capacitance measurement equivalent to
204		channel Y - channel Z where these channel numbers apply to the
205		physically equivalent inputs when non differential readings are
206		separately available. In differential only parts, then all that
207		is required is a consistent labeling.  Units after application
208		of scale and offset are nanofarads.
209
210What:		/sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_zeropoint
211KernelVersion:	6.1
212Contact:	linux-iio@vger.kernel.org
213Description:
214		For differential channels, this an offset that is applied
215		equally to both inputs. As the reading is of the difference
216		between the two inputs, this should not be applied to the _raw
217		reading by userspace (unlike _offset) and unlike calibbias
218		it does not affect the differential value measured because
219		the effect of _zeropoint cancels out across the two inputs
220		that make up the differential pair. It's purpose is to bring
221		the individual signals, before the differential is measured,
222		within the measurement range of the device. The naming is
223		chosen because if the separate inputs that make the
224		differential pair are drawn on a graph in their
225		_raw  units, this is the value that the zero point on the
226		measurement axis represents. It is expressed with the
227		same scaling as _raw.
228
229What:		/sys/bus/iio/devices/iio:deviceX/in_temp_raw
230What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_raw
231What:		/sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
232What:		/sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
233What:		/sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
234What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
235KernelVersion:	2.6.35
236Contact:	linux-iio@vger.kernel.org
237Description:
238		Raw (unscaled no bias removal etc.) temperature measurement.
239		If an axis is specified it generally means that the temperature
240		sensor is associated with one part of a compound device (e.g.
241		a gyroscope axis). The ambient and object modifiers distinguish
242		between ambient (reference) and distant temperature for contact-
243		less measurements. Units after application of scale and offset
244		are milli degrees Celsius.
245
246What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_input
247KernelVersion:	2.6.38
248Contact:	linux-iio@vger.kernel.org
249Description:
250		Scaled temperature measurement in milli degrees Celsius.
251
252What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
253What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
254What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
255KernelVersion:	2.6.35
256Contact:	linux-iio@vger.kernel.org
257Description:
258		Acceleration in direction x, y or z (may be arbitrarily assigned
259		but should match other such assignments on device).
260		Has all of the equivalent parameters as per voltageY. Units
261		after application of scale and offset are m/s^2.
262
263What:		/sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw
264What:		/sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw
265What:		/sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw
266KernelVersion:	6.1
267Contact:	linux-iio@vger.kernel.org
268Description:
269		As per in_accel_X_raw attributes, but minus the
270		acceleration due to gravity.
271
272What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
273What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
274What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
275KernelVersion:	4.11
276Contact:	linux-iio@vger.kernel.org
277Description:
278		Gravity in direction x, y or z (may be arbitrarily assigned
279		but should match other such assignments on device).
280		Units after application of scale and offset are m/s^2.
281
282What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
283What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
284KernelVersion:	4.17
285Contact:	linux-iio@vger.kernel.org
286Description:
287		Angle of rotation. Units after application of scale and offset
288		are radians.
289
290What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
291What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
292KernelVersion:	4.19
293Contact:	linux-iio@vger.kernel.org
294Description:
295		Relative position in direction x or y on a pad (may be
296		arbitrarily assigned but should match other such assignments on
297		device).
298		Units after application of scale and offset are milli percents
299		from the pad's size in both directions. Should be calibrated by
300		the consumer.
301
302What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
303What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
304What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
305KernelVersion:	2.6.35
306Contact:	linux-iio@vger.kernel.org
307Description:
308		Angular velocity about axis x, y or z (may be arbitrarily
309		assigned). Has all the equivalent parameters as	per voltageY.
310		Units after application of scale and offset are	radians per
311		second.
312
313What:		/sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
314What:		/sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
315What:		/sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
316KernelVersion:	2.6.35
317Contact:	linux-iio@vger.kernel.org
318Description:
319		Inclination raw reading about axis x, y or z (may be
320		arbitrarily assigned). Data converted by application of offset
321		and scale to degrees.
322
323What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
324What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
325What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
326KernelVersion:	2.6.35
327Contact:	linux-iio@vger.kernel.org
328Description:
329		Magnetic field along axis x, y or z (may be arbitrarily
330		assigned).  Data converted by application of offset
331		then scale to Gauss.
332
333What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
334What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
335What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
336KernelVersion:	2.6.36
337Contact:	linux-iio@vger.kernel.org
338Description:
339		Highest value since some reset condition.  These
340		attributes allow access to this and are otherwise
341		the direct equivalent of the <type>Y[_name]_raw attributes.
342
343What:		/sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
344KernelVersion:	2.6.36
345Contact:	linux-iio@vger.kernel.org
346Description:
347		A computed peak value based on the sum squared magnitude of
348		the underlying value in the specified directions.
349
350What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
351What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_raw
352KernelVersion:	3.8
353Contact:	linux-iio@vger.kernel.org
354Description:
355		Raw pressure measurement from channel Y. Units after
356		application of scale and offset are kilopascal.
357
358What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_input
359What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_input
360KernelVersion:	3.8
361Contact:	linux-iio@vger.kernel.org
362Description:
363		Scaled pressure measurement from channel Y, in kilopascal.
364
365What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
366KernelVersion:	3.14
367Contact:	linux-iio@vger.kernel.org
368Description:
369		Raw humidity measurement of air. Units after application of
370		scale and offset are milli percent.
371
372What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
373KernelVersion:	3.14
374Contact:	linux-iio@vger.kernel.org
375Description:
376		Scaled humidity measurement in milli percent.
377
378What:		/sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
379KernelVersion:	3.5
380Contact:	linux-iio@vger.kernel.org
381Description:
382		Averaged raw measurement from channel X. The number of values
383		used for averaging is device specific. The converting rules for
384		normal raw values also applies to the averaged raw values.
385
386What:		/sys/bus/iio/devices/iio:deviceX/in_accel_offset
387What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
388What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
389What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
390What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
391What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_offset
392What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
393What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
394What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
395What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
396What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_offset
397What:		/sys/bus/iio/devices/iio:deviceX/in_current_offset
398What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
399What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
400What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_offset
401What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_offset
402What:		/sys/bus/iio/devices/iio:deviceX/in_tempY_offset
403What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
404What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
405What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
406What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
407What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
408What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
409What:		/sys/bus/iio/devices/iio:deviceX/in_angl_offset
410What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
411KernelVersion:	2.6.35
412Contact:	linux-iio@vger.kernel.org
413Description:
414		If known for a device, offset to be added to <type>[Y]_raw prior
415		to scaling by <type>[Y]_scale in order to obtain value in the
416		<type> units as specified in <type>[Y]_raw documentation.
417		Not present if the offset is always 0 or unknown. If Y or
418		axis <x|y|z> is not present, then the offset applies to all
419		in channels of <type>.
420		May be writable if a variable offset can be applied on the
421		device. Note that this is different to calibbias which
422		is for devices (or drivers) that apply offsets to compensate
423		for variation between different instances of the part, typically
424		adjusted by using some hardware supported calibration procedure.
425		Calibbias is applied internally, offset is applied in userspace
426		to the _raw output.
427
428What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
429What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
430What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
431What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
432What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_scale
433What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
434What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
435What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
436What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
437What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
438What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_scale
439What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
440What:		/sys/bus/iio/devices/iio:deviceX/in_current_scale
441What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
442What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
443What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_scale
444What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_scale
445What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale
446What:		/sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
447What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
448What:		/sys/bus/iio/devices/iio:deviceX/in_energy_scale
449What:		/sys/bus/iio/devices/iio:deviceX/in_distance_scale
450What:		/sys/bus/iio/devices/iio:deviceX/in_magn_scale
451What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
452What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
453What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
454What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
455What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
456What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
457What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
458What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
459What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
460What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
461What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
462What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
463What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
464What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
465What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
466What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
467What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
468What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale
469KernelVersion:	2.6.35
470Contact:	linux-iio@vger.kernel.org
471Description:
472		If known for a device, scale to be applied to <type>Y[_name]_raw
473		post addition of <type>[Y][_name]_offset in order to obtain the
474		measured value in <type> units as specified in
475		<type>[Y][_name]_raw documentation.  If shared across all in
476		channels then Y and <x|y|z> are not present and the value is
477		called <type>[Y][_name]_scale. The peak modifier means this
478		value is applied to <type>Y[_name]_peak_raw values.
479
480What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
481What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
482What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
483What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
484What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
485What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
486What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
487What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
488What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
489What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
490KernelVersion:	2.6.35
491Contact:	linux-iio@vger.kernel.org
492Description:
493		Hardware applied calibration offset (assumed to fix production
494		inaccuracies).
495		icm42600: For this device values are real physical offsets
496		expressed in SI units (m/s^2 for accelerometers and rad/s
497		for gyroscope)/
498
499What:		/sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
500What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
501KernelVersion:  5.8
502Contact:        linux-iio@vger.kernel.org
503Description:
504		Available values of calibbias. Maybe expressed as either of:
505
506		- a small discrete set of values like "0 2 4 6 8"
507		- a range specified as "[min step max]"
508
509What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
510What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
511What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
512What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
513What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
514What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
515What:		/sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
516What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
517What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
518What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
519What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
520What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
521What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
522What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
523What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
524What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
525What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
526What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
527What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
528KernelVersion:	2.6.35
529Contact:	linux-iio@vger.kernel.org
530Description:
531		Hardware applied calibration scale factor (assumed to fix
532		production inaccuracies).  If shared across all channels,
533		<type>_calibscale is used.
534
535What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
536What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
537What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
538What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
539KernelVersion:	4.0
540Contact:	linux-iio@vger.kernel.org
541Description:
542		Gender of the user (e.g.: male, female) used by some pedometers
543		to compute the stride length, distance, speed and activity
544		type.
545
546What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
547What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
548What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
549What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
550KernelVersion:	4.0
551Contact:	linux-iio@vger.kernel.org
552Description:
553		Lists all available gender values (e.g.: male, female).
554
555What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
556What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
557What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
558What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
559KernelVersion:	3.19
560Contact:	linux-iio@vger.kernel.org
561Description:
562		Height of the user (in meters) used by some pedometers
563		to compute the stride length, distance, speed and activity
564		type.
565
566What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
567KernelVersion:	4.0
568Contact:	linux-iio@vger.kernel.org
569Description:
570		Weight of the user (in kg). It is needed by some pedometers
571		to compute the calories burnt by the user.
572
573What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
574What:		/sys/.../iio:deviceX/in_anglvel_scale_available
575What:		/sys/.../iio:deviceX/in_magn_scale_available
576What:		/sys/.../iio:deviceX/in_illuminance_scale_available
577What:		/sys/.../iio:deviceX/in_intensity_scale_available
578What:		/sys/.../iio:deviceX/in_proximity_scale_available
579What:		/sys/.../iio:deviceX/in_voltageX_scale_available
580What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
581What:		/sys/.../iio:deviceX/out_voltageX_scale_available
582What:		/sys/.../iio:deviceX/out_altvoltageX_scale_available
583What:		/sys/.../iio:deviceX/in_capacitance_scale_available
584What:		/sys/.../iio:deviceX/in_pressure_scale_available
585What:		/sys/.../iio:deviceX/in_pressureY_scale_available
586KernelVersion:	2.6.35
587Contact:	linux-iio@vger.kernel.org
588Description:
589		If a discrete set of scale values is available, they
590		are listed in this attribute.
591
592What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
593What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
594What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
595What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
596What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
597What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
598KernelVersion:	2.6.35
599Contact:	linux-iio@vger.kernel.org
600Description:
601		Hardware applied gain factor. If shared across all channels,
602		<type>_hardwaregain is used.
603
604What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
605KernelVersion:	5.10
606Contact:	linux-iio@vger.kernel.org
607Description:
608		Lists all available hardware applied gain factors. Shared across all
609		channels.
610
611What:		/sys/.../in_accel_filter_low_pass_3db_frequency
612What:		/sys/.../in_magn_filter_low_pass_3db_frequency
613What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
614KernelVersion:	3.2
615Contact:	linux-iio@vger.kernel.org
616Description:
617		If a known or controllable low pass filter is applied
618		to the underlying data channel, then this parameter
619		gives the 3dB frequency of the filter in Hz.
620
621What:		/sys/.../in_accel_filter_high_pass_3db_frequency
622What:		/sys/.../in_anglvel_filter_high_pass_3db_frequency
623What:		/sys/.../in_magn_filter_high_pass_3db_frequency
624KernelVersion:	4.2
625Contact:	linux-iio@vger.kernel.org
626Description:
627		If a known or controllable high pass filter is applied
628		to the underlying data channel, then this parameter
629		gives the 3dB frequency of the filter in Hz.
630
631What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
632What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
633KernelVersion:	2.6.37
634Contact:	linux-iio@vger.kernel.org
635Description:
636		Raw (unscaled, no bias etc.) output voltage for
637		channel Y.  The number must always be specified and
638		unique if the output corresponds to a single channel.
639		While DAC like devices typically use out_voltage,
640		a continuous frequency generating device, such as
641		a DDS or PLL should use out_altvoltage.
642
643What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
644What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
645KernelVersion:	2.6.37
646Contact:	linux-iio@vger.kernel.org
647Description:
648		Raw (unscaled, no bias etc.) output voltage for an aggregate of
649		channel Y, channel Z, etc.  This interface is available in cases
650		where a single output sets the value for multiple channels
651		simultaneously.
652
653What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
654What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
655What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
656What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
657KernelVersion:	2.6.38
658Contact:	linux-iio@vger.kernel.org
659Description:
660		Specifies the output powerdown mode.
661		DAC output stage is disconnected from the amplifier and
662		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
663		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
664		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
665		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
666		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
667		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
668		125kohm_to_gnd: connected to ground via an 125kOhm resistor,
669		500kohm_to_gnd: connected to ground via a 500kOhm resistor,
670		640kohm_to_gnd: connected to ground via a 640kOhm resistor,
671		three_state: left floating.
672		For a list of available output power down options read
673		outX_powerdown_mode_available. If Y is not present the
674		mode is shared across all outputs.
675
676What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
677What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
678What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
679What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
680KernelVersion:	2.6.38
681Contact:	linux-iio@vger.kernel.org
682Description:
683		Lists all available output power down modes.
684		If Y is not present the mode is shared across all outputs.
685
686What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
687What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
688What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
689What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
690KernelVersion:	2.6.38
691Contact:	linux-iio@vger.kernel.org
692Description:
693		Writing 1 causes output Y to enter the power down mode specified
694		by the corresponding outY_powerdown_mode. DAC output stage is
695		disconnected from the amplifier. Clearing returns to normal
696		operation. Y may be suppressed if all outputs are controlled
697		together.
698
699What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
700KernelVersion:	3.4.0
701Contact:	linux-iio@vger.kernel.org
702Description:
703		Output frequency for channel Y in Hz. The number must always be
704		specified and unique if the output corresponds to a single
705		channel.
706		Some drivers have additional constraints:
707		ADF4371 has an integrated VCO with fundamendal output
708		frequency ranging from 4000000000 Hz 8000000000 Hz.
709
710		out_altvoltage0_frequency:
711			A divide by 1, 2, 4, 8, 16, 32 or circuit generates
712			frequencies from 62500000 Hz to 8000000000 Hz.
713		out_altvoltage1_frequency:
714			This channel duplicates the channel 0 frequency
715		out_altvoltage2_frequency:
716			A frequency doubler generates frequencies from
717			8000000000 Hz to 16000000000 Hz.
718		out_altvoltage3_frequency:
719			A frequency quadrupler generates frequencies from
720			16000000000 Hz to 32000000000 Hz.
721
722		Note: writes to one of the channels will affect the frequency of
723		all the other channels, since it involves changing the VCO
724		fundamental output frequency.
725
726What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
727KernelVersion:	3.4.0
728Contact:	linux-iio@vger.kernel.org
729Description:
730		Phase in radians of one frequency/clock output Y
731		(out_altvoltageY) relative to another frequency/clock output
732		(out_altvoltageZ) of the device X. The number must always be
733		specified and unique if the output corresponds to a single
734		channel.
735
736What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
737Date:		May 2012
738KernelVersion:	3.5
739Contact:	Johan Hovold <jhovold@gmail.com>
740Description:
741		Set/get output current for channel Y. Units after application
742		of scale and offset are milliamps.
743		For some devices current channels are used to specify
744		current supplied to elements used in taking a measurement
745		of a different type. E.g. LED currents.
746
747What:		/sys/bus/iio/devices/iio:deviceX/events
748KernelVersion:	2.6.35
749Contact:	linux-iio@vger.kernel.org
750Description:
751		Configuration of which hardware generated events are passed up
752		to user-space.
753
754What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
755What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
756What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
757What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
758What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
759What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
760What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
761What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
762What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
763What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
764What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
765What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
766What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
767What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
768What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
769What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
770What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
771What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
772What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
773What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
774What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
775What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
776What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
777What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
778What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
779What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
780What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
781What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
782What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
783What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
784What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
785What:		/sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
786What:		/sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
787What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
788What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
789KernelVersion:	2.6.37
790Contact:	linux-iio@vger.kernel.org
791Description:
792		Event generated when channel passes a threshold in the specified
793		(_rising|_falling) direction. If the direction is not specified,
794		then either the device will report an event which ever direction
795		a single threshold value is passed in (e.g.
796		<type>[Y][_name]_<raw|input>_thresh_value) or
797		<type>[Y][_name]_<raw|input>_thresh_rising_value and
798		<type>[Y][_name]_<raw|input>_thresh_falling_value may take
799		different values, but the device can only enable both thresholds
800		or neither.
801
802		Note the driver will assume the last p events requested are
803		to be enabled where p is how many it supports (which may vary
804		depending on the exact set requested. So if you want to be
805		sure you have set what you think you have, check the contents of
806		these attributes after everything is configured. Drivers may
807		have to buffer any parameters so that they are consistent when
808		a given event type is enabled at a future point (and not those for
809		whatever event was previously enabled).
810
811What:		/sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
812What:		/sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
813What:		/sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
814What:		/sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
815What:		/sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
816What:		/sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
817What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
818What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
819What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
820What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
821What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
822What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
823What:		/sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
824What:		/sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
825What:		/sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
826What:		/sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
827What:		/sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
828What:		/sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
829What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
830What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
831What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
832What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
833What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
834What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
835What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
836What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
837What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
838What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
839What:		/sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
840What:		/sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
841What:		/sys/.../iio:deviceX/events/in_tempY_roc_rising_en
842What:		/sys/.../iio:deviceX/events/in_tempY_roc_falling_en
843KernelVersion:	2.6.37
844Contact:	linux-iio@vger.kernel.org
845Description:
846		Event generated when channel passes a threshold on the rate of
847		change (1st differential) in the specified (_rising|_falling)
848		direction. If the direction is not specified, then either the
849		device will report an event which ever direction a single
850		threshold value is passed in (e.g.
851		<type>[Y][_name]_<raw|input>_roc_value) or
852		<type>[Y][_name]_<raw|input>_roc_rising_value and
853		<type>[Y][_name]_<raw|input>_roc_falling_value may take
854		different values, but the device can only enable both rate of
855		change thresholds or neither.
856
857		Note the driver will assume the last p events requested are
858		to be enabled where p is however many it supports (which may
859		vary depending on the exact set requested. So if you want to be
860		sure you have set what you think you have, check the contents of
861		these attributes after everything is configured. Drivers may
862		have to buffer any parameters so that they are consistent when
863		a given event type is enabled a future point (and not those for
864		whatever event was previously enabled).
865
866What:		/sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
867What:		/sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
868KernelVersion:	5.13
869Contact:	linux-iio@vger.kernel.org
870Description:
871		Adaptive thresholds are similar to normal fixed thresholds
872		but the value is expressed as an offset from a value which
873		provides a low frequency approximation of the channel itself.
874		Thus these detect if a rapid change occurs in the specified
875		direction which crosses tracking value + offset.
876		Tracking value calculation is devices specific.
877
878What:		/sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
879What:		/sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
880KernelVersion:	5.11
881Contact:	linux-iio@vger.kernel.org
882Description:
883		When adaptive thresholds are used, the tracking signal
884		may adjust too slowly to step changes in the raw signal.
885		Thus these specify the time in seconds for which the
886		difference between the slow tracking signal and the raw
887		signal is allowed to remain out-of-range before a reset
888		event occurs in which the tracking signal is made equal
889		to the raw signal, allowing slow tracking to resume and the
890		adaptive threshold event detection to function as expected.
891
892What:		/sys/.../events/in_accel_thresh_rising_value
893What:		/sys/.../events/in_accel_thresh_falling_value
894What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
895What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
896What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
897What:		/sys/.../events/in_accel_y_raw_thresh_falling_value
898What:		/sys/.../events/in_accel_z_raw_thresh_rising_value
899What:		/sys/.../events/in_accel_z_raw_thresh_falling_value
900What:		/sys/.../events/in_anglvel_x_raw_thresh_rising_value
901What:		/sys/.../events/in_anglvel_x_raw_thresh_falling_value
902What:		/sys/.../events/in_anglvel_y_raw_thresh_rising_value
903What:		/sys/.../events/in_anglvel_y_raw_thresh_falling_value
904What:		/sys/.../events/in_anglvel_z_raw_thresh_rising_value
905What:		/sys/.../events/in_anglvel_z_raw_thresh_falling_value
906What:		/sys/.../events/in_magn_x_raw_thresh_rising_value
907What:		/sys/.../events/in_magn_x_raw_thresh_falling_value
908What:		/sys/.../events/in_magn_y_raw_thresh_rising_value
909What:		/sys/.../events/in_magn_y_raw_thresh_falling_value
910What:		/sys/.../events/in_magn_z_raw_thresh_rising_value
911What:		/sys/.../events/in_magn_z_raw_thresh_falling_value
912What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
913What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
914What:		/sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
915What:		/sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
916What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
917What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
918What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
919What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
920What:		/sys/.../events/in_voltageY_supply_raw_thresh_rising_value
921What:		/sys/.../events/in_voltageY_supply_raw_thresh_falling_value
922What:		/sys/.../events/in_voltageY_raw_thresh_rising_value
923What:		/sys/.../events/in_voltageY_raw_thresh_falling_value
924What:		/sys/.../events/in_tempY_raw_thresh_rising_value
925What:		/sys/.../events/in_tempY_raw_thresh_falling_value
926What:		/sys/.../events/in_illuminance0_thresh_falling_value
927What:		/sys/.../events/in_illuminance0_thresh_rising_value
928What:		/sys/.../events/in_proximity0_thresh_falling_value
929What:		/sys/.../events/in_proximity0_thresh_rising_value
930What:		/sys/.../events/in_illuminance_thresh_rising_value
931What:		/sys/.../events/in_illuminance_thresh_falling_value
932What:		/sys/.../events/in_capacitanceY_thresh_rising_value
933What:		/sys/.../events/in_capacitanceY_thresh_falling_value
934What:		/sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
935What:		/sys/.../events/in_capacitanceY_thresh_falling_rising_value
936KernelVersion:	2.6.37
937Contact:	linux-iio@vger.kernel.org
938Description:
939		Specifies the value of threshold that the device is comparing
940		against for the events enabled by
941		<type>Y[_name]_thresh[_rising|falling]_en.
942
943		If separate attributes exist for the two directions, but
944		direction is not specified for this attribute, then a single
945		threshold value applies to both directions.
946
947		The raw or input element of the name indicates whether the
948		value is in raw device units or in processed units (as _raw
949		and _input do on sysfs direct channel read attributes).
950
951What:		/sys/.../events/in_accel_scale
952What:		/sys/.../events/in_accel_peak_scale
953What:		/sys/.../events/in_anglvel_scale
954What:		/sys/.../events/in_magn_scale
955What:		/sys/.../events/in_rot_from_north_magnetic_scale
956What:		/sys/.../events/in_rot_from_north_true_scale
957What:		/sys/.../events/in_voltage_scale
958What:		/sys/.../events/in_voltage_supply_scale
959What:		/sys/.../events/in_temp_scale
960What:		/sys/.../events/in_illuminance_scale
961What:		/sys/.../events/in_proximity_scale
962KernelVersion:	3.21
963Contact:	linux-iio@vger.kernel.org
964Description:
965                Specifies the conversion factor from the standard units
966                to device specific units used to set the event trigger
967                threshold.
968
969What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
970What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
971What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
972What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
973What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
974What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
975What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
976What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
977What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
978What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
979What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
980What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
981What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
982What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
983What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
984What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
985What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
986What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
987What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
988What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
989What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
990What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
991What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
992What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
993What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
994What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
995What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
996What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
997What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
998What:		/sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
999What:		/sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
1000What:		/sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
1001What:		/sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
1002What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
1003What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
1004What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
1005What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
1006What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
1007What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
1008What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
1009What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
1010What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
1011What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
1012What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
1013What:		/sys/.../events/in_tempY_thresh_either_hysteresis
1014What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
1015What:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
1016What:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
1017What:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
1018What:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
1019What:		/sys/.../events/in_proximity0_thresh_either_hysteresis
1020KernelVersion:	3.13
1021Contact:	linux-iio@vger.kernel.org
1022Description:
1023		Specifies the hysteresis of threshold that the device is comparing
1024		against for the events enabled by
1025		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
1026		If separate attributes exist for the two directions, but
1027		direction is not specified for this attribute, then a single
1028		hysteresis value applies to both directions.
1029
1030		For falling events the hysteresis is added to the _value attribute for
1031		this event to get the upper threshold for when the event goes back to
1032		normal, for rising events the hysteresis is subtracted from the _value
1033		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
1034		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
1035		will get activated once in_voltage0_raw goes above 1200 and will become
1036		deactivated again once the value falls below 1150.
1037
1038What:		/sys/.../events/in_accel_x_raw_roc_rising_value
1039What:		/sys/.../events/in_accel_x_raw_roc_falling_value
1040What:		/sys/.../events/in_accel_y_raw_roc_rising_value
1041What:		/sys/.../events/in_accel_y_raw_roc_falling_value
1042What:		/sys/.../events/in_accel_z_raw_roc_rising_value
1043What:		/sys/.../events/in_accel_z_raw_roc_falling_value
1044What:		/sys/.../events/in_anglvel_x_raw_roc_rising_value
1045What:		/sys/.../events/in_anglvel_x_raw_roc_falling_value
1046What:		/sys/.../events/in_anglvel_y_raw_roc_rising_value
1047What:		/sys/.../events/in_anglvel_y_raw_roc_falling_value
1048What:		/sys/.../events/in_anglvel_z_raw_roc_rising_value
1049What:		/sys/.../events/in_anglvel_z_raw_roc_falling_value
1050What:		/sys/.../events/in_magn_x_raw_roc_rising_value
1051What:		/sys/.../events/in_magn_x_raw_roc_falling_value
1052What:		/sys/.../events/in_magn_y_raw_roc_rising_value
1053What:		/sys/.../events/in_magn_y_raw_roc_falling_value
1054What:		/sys/.../events/in_magn_z_raw_roc_rising_value
1055What:		/sys/.../events/in_magn_z_raw_roc_falling_value
1056What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
1057What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
1058What:		/sys/.../events/in_rot_from_north_true_raw_roc_rising_value
1059What:		/sys/.../events/in_rot_from_north_true_raw_roc_falling_value
1060What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
1061What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
1062What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
1063What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
1064What:		/sys/.../events/in_voltageY_supply_raw_roc_rising_value
1065What:		/sys/.../events/in_voltageY_supply_raw_roc_falling_value
1066What:		/sys/.../events/in_voltageY_raw_roc_rising_value
1067What:		/sys/.../events/in_voltageY_raw_roc_falling_value
1068What:		/sys/.../events/in_tempY_raw_roc_rising_value
1069What:		/sys/.../events/in_tempY_raw_roc_falling_value
1070KernelVersion:	2.6.37
1071Contact:	linux-iio@vger.kernel.org
1072Description:
1073		Specifies the value of rate of change threshold that the
1074		device is comparing against for the events enabled by
1075		<type>[Y][_name]_roc[_rising|falling]_en.
1076
1077		If separate attributes exist for the two directions,
1078		but direction is not specified for this attribute,
1079		then a single threshold value applies to both directions.
1080		The raw or input element of the name indicates whether the
1081		value is in raw device units or in processed units (as _raw
1082		and _input do on sysfs direct channel read attributes).
1083
1084What:		/sys/.../events/in_accel_x_thresh_rising_period
1085What:		/sys/.../events/in_accel_x_thresh_falling_period
1086What:		/sys/.../events/in_accel_x_roc_rising_period
1087What:		/sys/.../events/in_accel_x_roc_falling_period
1088What:		/sys/.../events/in_accel_y_thresh_rising_period
1089What:		/sys/.../events/in_accel_y_thresh_falling_period
1090What:		/sys/.../events/in_accel_y_roc_rising_period
1091What:		/sys/.../events/in_accel_y_roc_falling_period
1092What:		/sys/.../events/in_accel_z_thresh_rising_period
1093What:		/sys/.../events/in_accel_z_thresh_falling_period
1094What:		/sys/.../events/in_accel_z_roc_rising_period
1095What:		/sys/.../events/in_accel_z_roc_falling_period
1096What:		/sys/.../events/in_anglvel_x_thresh_rising_period
1097What:		/sys/.../events/in_anglvel_x_thresh_falling_period
1098What:		/sys/.../events/in_anglvel_x_roc_rising_period
1099What:		/sys/.../events/in_anglvel_x_roc_falling_period
1100What:		/sys/.../events/in_anglvel_y_thresh_rising_period
1101What:		/sys/.../events/in_anglvel_y_thresh_falling_period
1102What:		/sys/.../events/in_anglvel_y_roc_rising_period
1103What:		/sys/.../events/in_anglvel_y_roc_falling_period
1104What:		/sys/.../events/in_anglvel_z_thresh_rising_period
1105What:		/sys/.../events/in_anglvel_z_thresh_falling_period
1106What:		/sys/.../events/in_anglvel_z_roc_rising_period
1107What:		/sys/.../events/in_anglvel_z_roc_falling_period
1108What:		/sys/.../events/in_magn_x_thresh_rising_period
1109What:		/sys/.../events/in_magn_x_thresh_falling_period
1110What:		/sys/.../events/in_magn_x_roc_rising_period
1111What:		/sys/.../events/in_magn_x_roc_falling_period
1112What:		/sys/.../events/in_magn_y_thresh_rising_period
1113What:		/sys/.../events/in_magn_y_thresh_falling_period
1114What:		/sys/.../events/in_magn_y_roc_rising_period
1115What:		/sys/.../events/in_magn_y_roc_falling_period
1116What:		/sys/.../events/in_magn_z_thresh_rising_period
1117What:		/sys/.../events/in_magn_z_thresh_falling_period
1118What:		/sys/.../events/in_magn_z_roc_rising_period
1119What:		/sys/.../events/in_magn_z_roc_falling_period
1120What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
1121What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
1122What:		/sys/.../events/in_rot_from_north_magnetic_roc_rising_period
1123What:		/sys/.../events/in_rot_from_north_magnetic_roc_falling_period
1124What:		/sys/.../events/in_rot_from_north_true_thresh_rising_period
1125What:		/sys/.../events/in_rot_from_north_true_thresh_falling_period
1126What:		/sys/.../events/in_rot_from_north_true_roc_rising_period
1127What:		/sys/.../events/in_rot_from_north_true_roc_falling_period
1128What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
1129What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
1130What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
1131What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
1132What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
1133What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
1134What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
1135What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
1136What:		/sys/.../events/in_voltageY_supply_thresh_rising_period
1137What:		/sys/.../events/in_voltageY_supply_thresh_falling_period
1138What:		/sys/.../events/in_voltageY_supply_roc_rising_period
1139What:		/sys/.../events/in_voltageY_supply_roc_falling_period
1140What:		/sys/.../events/in_voltageY_thresh_rising_period
1141What:		/sys/.../events/in_voltageY_thresh_falling_period
1142What:		/sys/.../events/in_voltageY_roc_rising_period
1143What:		/sys/.../events/in_voltageY_roc_falling_period
1144What:		/sys/.../events/in_tempY_thresh_rising_period
1145What:		/sys/.../events/in_tempY_thresh_falling_period
1146What:		/sys/.../events/in_tempY_roc_rising_period
1147What:		/sys/.../events/in_tempY_roc_falling_period
1148What:		/sys/.../events/in_accel_x&y&z_mag_falling_period
1149What:		/sys/.../events/in_intensity0_thresh_period
1150What:		/sys/.../events/in_proximity0_thresh_period
1151What:		/sys/.../events/in_activity_still_thresh_rising_period
1152What:		/sys/.../events/in_activity_still_thresh_falling_period
1153What:		/sys/.../events/in_activity_walking_thresh_rising_period
1154What:		/sys/.../events/in_activity_walking_thresh_falling_period
1155What:		/sys/.../events/in_activity_jogging_thresh_rising_period
1156What:		/sys/.../events/in_activity_jogging_thresh_falling_period
1157What:		/sys/.../events/in_activity_running_thresh_rising_period
1158What:		/sys/.../events/in_activity_running_thresh_falling_period
1159What:		/sys/.../events/in_illuminance_thresh_either_period
1160KernelVersion:	2.6.37
1161Contact:	linux-iio@vger.kernel.org
1162Description:
1163		Period of time (in seconds) for which the condition must be
1164		met before an event is generated. If direction is not
1165		specified then this period applies to both directions.
1166
1167What:		/sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
1168What:		/sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
1169What:		/sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
1170KernelVersion:	4.2
1171Contact:	linux-iio@vger.kernel.org
1172Description:
1173		If a low pass filter can be applied to the event generation
1174		this property gives its 3db frequency in Hz.
1175		A value of zero disables the filter.
1176
1177What:		/sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
1178What:		/sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
1179What:		/sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
1180KernelVersion:	4.2
1181Contact:	linux-iio@vger.kernel.org
1182Description:
1183		If a high pass filter can be applied to the event generation
1184		this property gives its 3db frequency in Hz.
1185		A value of zero disables the filter.
1186
1187What:		/sys/.../events/in_activity_still_thresh_rising_en
1188What:		/sys/.../events/in_activity_still_thresh_falling_en
1189What:		/sys/.../events/in_activity_walking_thresh_rising_en
1190What:		/sys/.../events/in_activity_walking_thresh_falling_en
1191What:		/sys/.../events/in_activity_jogging_thresh_rising_en
1192What:		/sys/.../events/in_activity_jogging_thresh_falling_en
1193What:		/sys/.../events/in_activity_running_thresh_rising_en
1194What:		/sys/.../events/in_activity_running_thresh_falling_en
1195KernelVersion:	3.19
1196Contact:	linux-iio@vger.kernel.org
1197Description:
1198		Enables or disables activity events. Depending on direction
1199		an event is generated when sensor ENTERS or LEAVES a given state.
1200
1201What:		/sys/.../events/in_activity_still_thresh_rising_value
1202What:		/sys/.../events/in_activity_still_thresh_falling_value
1203What:		/sys/.../events/in_activity_walking_thresh_rising_value
1204What:		/sys/.../events/in_activity_walking_thresh_falling_value
1205What:		/sys/.../events/in_activity_jogging_thresh_rising_value
1206What:		/sys/.../events/in_activity_jogging_thresh_falling_value
1207What:		/sys/.../events/in_activity_running_thresh_rising_value
1208What:		/sys/.../events/in_activity_running_thresh_falling_value
1209KernelVersion:	3.19
1210Contact:	linux-iio@vger.kernel.org
1211Description:
1212		Confidence value (in units as percentage) to be used
1213		for deciding when an event should be generated. E.g for
1214		running: If the confidence value reported by the sensor
1215		is greater than in_activity_running_thresh_rising_value
1216		then the sensor ENTERS running state. Conversely, if the
1217		confidence value reported by the sensor is lower than
1218		in_activity_running_thresh_falling_value then the sensor
1219		is LEAVING running state.
1220
1221What:		/sys/.../iio:deviceX/events/in_accel_mag_en
1222What:		/sys/.../iio:deviceX/events/in_accel_mag_rising_en
1223What:		/sys/.../iio:deviceX/events/in_accel_mag_falling_en
1224What:		/sys/.../iio:deviceX/events/in_accel_x_mag_en
1225What:		/sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1226What:		/sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1227What:		/sys/.../iio:deviceX/events/in_accel_y_mag_en
1228What:		/sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1229What:		/sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1230What:		/sys/.../iio:deviceX/events/in_accel_z_mag_en
1231What:		/sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1232What:		/sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1233What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1234What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1235KernelVersion:	2.6.37
1236Contact:	linux-iio@vger.kernel.org
1237Description:
1238		Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1239		magnitude of the channel is compared to the threshold, not its
1240		signed value.
1241
1242What:		/sys/.../events/in_accel_raw_mag_value
1243What:		/sys/.../events/in_accel_x_raw_mag_rising_value
1244What:		/sys/.../events/in_accel_y_raw_mag_rising_value
1245What:		/sys/.../events/in_accel_z_raw_mag_rising_value
1246KernelVersion:	2.6.37
1247Contact:	linux-iio@vger.kernel.org
1248Description:
1249		The value to which the magnitude of the channel is compared. If
1250		number or direction is not specified, applies to all channels of
1251		this type.
1252
1253What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_en
1254What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en
1255What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en
1256What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en
1257What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en
1258What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en
1259KernelVersion:	5.18
1260Contact:	linux-iio@vger.kernel.org
1261Description:
1262		Similar to in_accel_mag[_y][_rising|_falling]_en, but the event
1263		value is relative to a reference magnitude. The reference magnitude
1264		includes the graviational acceleration.
1265
1266What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_value
1267What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value
1268What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value
1269What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value
1270What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value
1271What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value
1272KernelVersion:	5.18
1273Contact:	linux-iio@vger.kernel.org
1274Description:
1275		The value to which the reference magnitude of the channel is
1276		compared. If the axis is not specified, it applies to all channels
1277		of this type.
1278
1279What:		/sys/.../events/in_steps_change_en
1280KernelVersion:	4.0
1281Contact:	linux-iio@vger.kernel.org
1282Description:
1283		Event generated when channel passes a threshold on the absolute
1284		change in value. E.g. for steps: a step change event is
1285		generated each time the user takes N steps, where N is set using
1286		in_steps_change_value.
1287
1288What:		/sys/.../events/in_steps_change_value
1289KernelVersion:	4.0
1290Contact:	linux-iio@vger.kernel.org
1291Description:
1292		Specifies the value of change threshold that the
1293		device is comparing against for the events enabled by
1294		<type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1295		if set to 3, a step change event will be generated every 3
1296		steps.
1297
1298What:		/sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1299KernelVersion:	2.6.35
1300Contact:	linux-iio@vger.kernel.org
1301Description:
1302		The name of the trigger source being used, as per string given
1303		in /sys/class/iio/triggerY/name.
1304
1305What:		/sys/bus/iio/devices/iio:deviceX/bufferY/length
1306KernelVersion:	5.11
1307Contact:	linux-iio@vger.kernel.org
1308Description:
1309		Number of scans contained by the buffer.
1310
1311What:		/sys/bus/iio/devices/iio:deviceX/bufferY/enable
1312KernelVersion:	5.11
1313Contact:	linux-iio@vger.kernel.org
1314Description:
1315		Actually start the buffer capture up.  Will start trigger
1316		if first device and appropriate.
1317
1318		Note that it might be impossible to configure other attributes,
1319		(e.g.: events, scale, sampling rate) if they impact the currently
1320		active buffer capture session.
1321
1322What:		/sys/bus/iio/devices/iio:deviceX/bufferY
1323KernelVersion:	5.11
1324Contact:	linux-iio@vger.kernel.org
1325Description:
1326		Directory containing interfaces for elements that will be
1327		captured for a single triggered sample set in the buffer.
1328
1329		Since kernel 5.11 the scan_elements attributes are merged into
1330		the bufferY directory, to be configurable per buffer.
1331
1332What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
1333What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
1334What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
1335What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
1336What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
1337What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
1338What:		/sys/.../iio:deviceX/bufferY/in_magn_x_en
1339What:		/sys/.../iio:deviceX/bufferY/in_magn_y_en
1340What:		/sys/.../iio:deviceX/bufferY/in_magn_z_en
1341What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
1342What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
1343What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
1344What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
1345What:		/sys/.../iio:deviceX/bufferY/in_timestamp_en
1346What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
1347What:		/sys/.../iio:deviceX/bufferY/in_voltageY_en
1348What:		/sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
1349What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_en
1350What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_en
1351What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_en
1352What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_en
1353What:		/sys/.../iio:deviceX/bufferY/in_incli_x_en
1354What:		/sys/.../iio:deviceX/bufferY/in_incli_y_en
1355What:		/sys/.../iio:deviceX/bufferY/in_pressureY_en
1356What:		/sys/.../iio:deviceX/bufferY/in_pressure_en
1357What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
1358What:		/sys/.../iio:deviceX/bufferY/in_proximity_en
1359KernelVersion:	5.11
1360Contact:	linux-iio@vger.kernel.org
1361Description:
1362		Scan element control for triggered data capture.
1363
1364What:		/sys/.../iio:deviceX/bufferY/in_accel_type
1365What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
1366What:		/sys/.../iio:deviceX/bufferY/in_magn_type
1367What:		/sys/.../iio:deviceX/bufferY/in_incli_type
1368What:		/sys/.../iio:deviceX/bufferY/in_voltageY_type
1369What:		/sys/.../iio:deviceX/bufferY/in_voltage_type
1370What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
1371What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_type
1372What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_type
1373What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_type
1374What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_type
1375What:		/sys/.../iio:deviceX/bufferY/in_timestamp_type
1376What:		/sys/.../iio:deviceX/bufferY/in_pressureY_type
1377What:		/sys/.../iio:deviceX/bufferY/in_pressure_type
1378What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
1379What:		/sys/.../iio:deviceX/bufferY/in_proximity_type
1380KernelVersion:	5.11
1381Contact:	linux-iio@vger.kernel.org
1382Description:
1383		Description of the scan element data storage within the buffer
1384		and hence the form in which it is read from user-space.
1385		Form is [be|le]:[s|u]bits/storagebits[>>shift].
1386		be or le specifies big or little endian. s or u specifies if
1387		signed (2's complement) or unsigned. bits is the number of bits
1388		of data and storagebits is the space (after padding) that it
1389		occupies in the buffer. shift if specified, is the shift that
1390		needs to be applied prior to masking out unused bits. Some
1391		devices put their data in the middle of the transferred elements
1392		with additional information on both sides.  Note that some
1393		devices will have additional information in the unused bits
1394		so to get a clean value, the bits value must be used to mask
1395		the buffer output value appropriately.  The storagebits value
1396		also specifies the data alignment.  So s48/64>>2 will be a
1397		signed 48 bit integer stored in a 64 bit location aligned to
1398		a 64 bit boundary. To obtain the clean value, shift right 2
1399		and apply a mask to zero the top 16 bits of the result.
1400		For other storage combinations this attribute will be extended
1401		appropriately.
1402
1403What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
1404KernelVersion:	2.6.37
1405Contact:	linux-iio@vger.kernel.org
1406Description:
1407		If the type parameter can take one of a small set of values,
1408		this attribute lists them.
1409
1410What:		/sys/.../iio:deviceX/bufferY/in_voltageY_index
1411What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
1412What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_index
1413What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_index
1414What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_index
1415What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_index
1416What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
1417What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
1418What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
1419What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
1420What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
1421What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
1422What:		/sys/.../iio:deviceX/bufferY/in_magn_x_index
1423What:		/sys/.../iio:deviceX/bufferY/in_magn_y_index
1424What:		/sys/.../iio:deviceX/bufferY/in_magn_z_index
1425What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
1426What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
1427What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
1428What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
1429What:		/sys/.../iio:deviceX/bufferY/in_incli_x_index
1430What:		/sys/.../iio:deviceX/bufferY/in_incli_y_index
1431What:		/sys/.../iio:deviceX/bufferY/in_timestamp_index
1432What:		/sys/.../iio:deviceX/bufferY/in_pressureY_index
1433What:		/sys/.../iio:deviceX/bufferY/in_pressure_index
1434What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
1435What:		/sys/.../iio:deviceX/bufferY/in_proximity_index
1436KernelVersion:	5.11
1437Contact:	linux-iio@vger.kernel.org
1438Description:
1439		A single positive integer specifying the position of this
1440		scan element in the buffer. Note these are not dependent on
1441		what is enabled and may not be contiguous. Thus for user-space
1442		to establish the full layout these must be used in conjunction
1443		with all _en attributes to establish which channels are present,
1444		and the relevant _type attributes to establish the data storage
1445		format.
1446
1447What:		/sys/.../iio:deviceX/in_activity_still_input
1448What:		/sys/.../iio:deviceX/in_activity_walking_input
1449What:		/sys/.../iio:deviceX/in_activity_jogging_input
1450What:		/sys/.../iio:deviceX/in_activity_running_input
1451KernelVersion:	3.19
1452Contact:	linux-iio@vger.kernel.org
1453Description:
1454		This attribute is used to read the confidence for an activity
1455		expressed in units as percentage.
1456
1457What:		/sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1458KernelVersion:	2.6.38
1459Contact:	linux-iio@vger.kernel.org
1460Description:
1461		This attribute is used to read the amount of quadrature error
1462		present in the device at a given time.
1463
1464What:		/sys/.../iio:deviceX/in_accelX_power_mode
1465KernelVersion:	3.11
1466Contact:	linux-iio@vger.kernel.org
1467Description:
1468		Specifies the chip power mode.
1469		low_noise: reduce noise level from ADC,
1470		low_power: enable low current consumption.
1471		For a list of available output power modes read
1472		in_accel_power_mode_available.
1473
1474What:		/sys/.../iio:deviceX/in_energy_input
1475What:		/sys/.../iio:deviceX/in_energy_raw
1476KernelVersion:	4.0
1477Contact:	linux-iio@vger.kernel.org
1478Description:
1479		This attribute is used to read the energy value reported by the
1480		device (e.g.: human activity sensors report energy burnt by the
1481		user). Units after application of scale are Joules.
1482
1483What:		/sys/.../iio:deviceX/in_distance_input
1484What:		/sys/.../iio:deviceX/in_distance_raw
1485KernelVersion:	4.0
1486Contact:	linux-iio@vger.kernel.org
1487Description:
1488		This attribute is used to read the measured distance to an object
1489		or the distance covered by the user since the last reboot while
1490		activated. Units after application of scale are meters.
1491
1492What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
1493KernelVersion:	3.4.0
1494Contact:	linux-iio@vger.kernel.org
1495Description:
1496		Writing '1' stores the current device configuration into
1497		on-chip EEPROM. After power-up or chip reset the device will
1498		automatically load the saved configuration.
1499
1500What:		/sys/.../iio:deviceX/in_proximity_raw
1501What:		/sys/.../iio:deviceX/in_proximity_input
1502What:		/sys/.../iio:deviceX/in_proximityY_raw
1503KernelVersion:	3.4
1504Contact:	linux-iio@vger.kernel.org
1505Description:
1506		Proximity measurement indicating that some
1507		object is near the sensor, usually by observing
1508		reflectivity of infrared or ultrasound emitted.
1509
1510		Often these sensors are unit less and as such conversion
1511		to SI units is not possible. Higher proximity measurements
1512		indicate closer objects, and vice versa. Units after
1513		application of scale and offset are meters.
1514
1515What:		/sys/.../iio:deviceX/in_illuminance_input
1516What:		/sys/.../iio:deviceX/in_illuminance_raw
1517What:		/sys/.../iio:deviceX/in_illuminanceY_input
1518What:		/sys/.../iio:deviceX/in_illuminanceY_raw
1519What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
1520What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
1521What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
1522KernelVersion:	3.4
1523Contact:	linux-iio@vger.kernel.org
1524Description:
1525		Illuminance measurement, units after application of scale
1526		and offset are lux.
1527
1528What:		/sys/.../iio:deviceX/in_intensityY_raw
1529What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
1530What:		/sys/.../iio:deviceX/in_intensityY_both_raw
1531What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
1532What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
1533KernelVersion:	3.4
1534Contact:	linux-iio@vger.kernel.org
1535Description:
1536		Unit-less light intensity. Modifiers both and ir indicate
1537		that measurements contain visible and infrared light
1538		components or just infrared light, respectively. Modifier
1539		uv indicates that measurements contain ultraviolet light
1540		components. Modifier duv indicates that measurements
1541		contain deep ultraviolet light components.
1542
1543What:		/sys/.../iio:deviceX/in_uvindex_input
1544KernelVersion:	4.6
1545Contact:	linux-iio@vger.kernel.org
1546Description:
1547		UV light intensity index measuring the human skin's response to
1548		different wavelength of sunlight weighted according to the
1549		standardised CIE Erythemal Action Spectrum. UV index values range
1550		from 0 (low) to >=11 (extreme).
1551
1552What:		/sys/.../iio:deviceX/in_intensity_integration_time
1553What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
1554What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
1555What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
1556What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
1557What:		/sys/.../iio:deviceX/in_illuminance_integration_time
1558KernelVersion:	3.12
1559Contact:	linux-iio@vger.kernel.org
1560Description:
1561		This attribute is used to get/set the integration time in
1562		seconds. If shared across all channels of a given type,
1563		<type>_integration_time is used.
1564
1565What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1566KernelVersion:	4.0
1567Contact:	linux-iio@vger.kernel.org
1568Description:
1569		Number of seconds in which to compute speed.
1570
1571What:		/sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1572KernelVersion:	3.15
1573Contact:	linux-iio@vger.kernel.org
1574Description:
1575		Raw value of quaternion components using a format
1576		x y z w. Here x, y, and z component represents the axis about
1577		which a rotation will occur and w component represents the
1578		amount of rotation.
1579
1580What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1581What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1582What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1583What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1584KernelVersion:	3.15
1585Contact:	linux-iio@vger.kernel.org
1586Description:
1587		Raw value of rotation from true/magnetic north measured with
1588		or without compensation from tilt sensors.
1589
1590What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1591What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1592What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1593KernelVersion:	3.18
1594Contact:	linux-iio@vger.kernel.org
1595Description:
1596		Raw current measurement from channel X. Units are in milliamps
1597		after application of scale and offset. If no offset or scale is
1598		present, output should be considered as processed with the
1599		unit in milliamps.
1600
1601		Channels with 'i' and 'q' modifiers always exist in pairs and both
1602		channels refer to the same signal. The 'i' channel contains the in-phase
1603		component of the signal while the 'q' channel contains the quadrature
1604		component.
1605
1606What:		/sys/.../iio:deviceX/in_energy_en
1607What:		/sys/.../iio:deviceX/in_distance_en
1608What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1609What:		/sys/.../iio:deviceX/in_steps_en
1610KernelVersion:	3.19
1611Contact:	linux-iio@vger.kernel.org
1612Description:
1613		Activates a device feature that runs in firmware/hardware.
1614		E.g. for steps: the pedometer saves power while not used;
1615		when activated, it will count the steps taken by the user in
1616		firmware and export them through in_steps_input.
1617
1618What:		/sys/.../iio:deviceX/in_steps_input
1619KernelVersion:	3.19
1620Contact:	linux-iio@vger.kernel.org
1621Description:
1622		This attribute is used to read the number of steps taken by the user
1623		since the last reboot while activated.
1624
1625What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1626What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1627KernelVersion:	3.19
1628Contact:	linux-iio@vger.kernel.org
1629Description:
1630		This attribute is used to read the current speed value of the
1631		user (which is the norm or magnitude of the velocity vector).
1632		Units after application of scale are m/s.
1633
1634What:		/sys/.../iio:deviceX/in_steps_debounce_count
1635KernelVersion:	4.0
1636Contact:	linux-iio@vger.kernel.org
1637Description:
1638		Specifies the number of steps that must occur within
1639		in_steps_filter_debounce_time for the pedometer to decide the
1640		consumer is making steps.
1641
1642What:		/sys/.../iio:deviceX/in_steps_debounce_time
1643KernelVersion:	4.0
1644Contact:	linux-iio@vger.kernel.org
1645Description:
1646		Specifies number of seconds in which we compute the steps
1647		that occur in order to decide if the consumer is making steps.
1648
1649What:		/sys/bus/iio/devices/iio:deviceX/bufferY/watermark
1650KernelVersion:	5.11
1651Contact:	linux-iio@vger.kernel.org
1652Description:
1653		A single positive integer specifying the maximum number of scan
1654		elements to wait for.
1655
1656		Poll will block until the watermark is reached.
1657
1658		Blocking read will wait until the minimum between the requested
1659		read amount or the low water mark is available.
1660
1661		Non-blocking read will retrieve the available samples from the
1662		buffer even if there are less samples then watermark level. This
1663		allows the application to block on poll with a timeout and read
1664		the available samples after the timeout expires and thus have a
1665		maximum delay guarantee.
1666
1667What:		/sys/bus/iio/devices/iio:deviceX/bufferY/data_available
1668KernelVersion:	5.11
1669Contact:	linux-iio@vger.kernel.org
1670Description:
1671		A read-only value indicating the bytes of data available in the
1672		buffer. In the case of an output buffer, this indicates the
1673		amount of empty space available to write data to. In the case of
1674		an input buffer, this indicates the amount of data available for
1675		reading.
1676
1677What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1678KernelVersion: 4.2
1679Contact:	linux-iio@vger.kernel.org
1680Description:
1681		A read-only boolean value that indicates if the hardware fifo is
1682		currently enabled or disabled. If the device does not have a
1683		hardware fifo this entry is not present.
1684		The hardware fifo is enabled when the buffer is enabled if the
1685		current hardware fifo watermark level is set and other current
1686		device settings allows it (e.g. if a trigger is set that samples
1687		data differently that the hardware fifo does then hardware fifo
1688		will not enabled).
1689
1690		If the hardware fifo is enabled and the level of the hardware
1691		fifo reaches the hardware fifo watermark level the device will
1692		flush its hardware fifo to the device buffer. Doing a non
1693		blocking read on the device when no samples are present in the
1694		device buffer will also force a flush.
1695
1696		When the hardware fifo is enabled there is no need to use a
1697		trigger to use buffer mode since the watermark settings
1698		guarantees that the hardware fifo is flushed to the device
1699		buffer.
1700
1701What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1702KernelVersion:	4.12
1703Contact:	linux-iio@vger.kernel.org
1704Description:
1705		A read/write property to provide capability to delay reporting of
1706		samples till a timeout is reached. This allows host processors to
1707		sleep, while the sensor is storing samples in its internal fifo.
1708		The maximum timeout in seconds can be specified by setting
1709		hwfifo_timeout.The current delay can be read by reading
1710		hwfifo_timeout. A value of 0 means that there is no timeout.
1711
1712What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1713KernelVersion: 4.2
1714Contact:	linux-iio@vger.kernel.org
1715Description:
1716		Read-only entry that contains a single integer specifying the
1717		current watermark level for the hardware fifo. If the device
1718		does not have a hardware fifo this entry is not present.
1719		The watermark level for the hardware fifo is set by the driver
1720		based on the value set by the user in buffer/watermark but
1721		taking into account hardware limitations (e.g. most hardware
1722		buffers are limited to 32-64 samples, some hardware buffers
1723		watermarks are fixed or have minimum levels).  A value of 0
1724		means that the hardware watermark is unset.
1725
1726What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1727KernelVersion: 4.2
1728Contact:       linux-iio@vger.kernel.org
1729Description:
1730		A single positive integer specifying the minimum watermark level
1731		for the hardware fifo of this device. If the device does not
1732		have a hardware fifo this entry is not present.
1733
1734		If the user sets buffer/watermark to a value less than this one,
1735		then the hardware watermark will remain unset.
1736
1737What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1738KernelVersion: 4.2
1739Contact:       linux-iio@vger.kernel.org
1740Description:
1741		A single positive integer specifying the maximum watermark level
1742		for the hardware fifo of this device. If the device does not
1743		have a hardware fifo this entry is not present.
1744
1745		If the user sets buffer/watermark to a value greater than this
1746		one, then the hardware watermark will be capped at this value.
1747
1748What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1749KernelVersion: 4.2
1750Contact:       linux-iio@vger.kernel.org
1751Description:
1752		A list of positive integers specifying the available watermark
1753		levels for the hardware fifo. This entry is optional and if it
1754		is not present it means that all the values between
1755		hwfifo_watermark_min and hwfifo_watermark_max are supported.
1756
1757		If the user sets buffer/watermark to a value greater than
1758		hwfifo_watermak_min but not equal to any of the values in this
1759		list, the driver will chose an appropriate value for the
1760		hardware fifo watermark level.
1761
1762What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1763What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1764What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1765What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1766KernelVersion:	4.1
1767Contact:	linux-iio@vger.kernel.org
1768Description:
1769		The emissivity ratio of the surface in the field of view of the
1770		contactless temperature sensor.  Emissivity varies from 0 to 1,
1771		with 1 being the emissivity of a black body.
1772
1773What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1774What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1775What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1776KernelVersion:	4.2
1777Contact:	linux-iio@vger.kernel.org
1778Description:
1779		Hardware applied number of measurements for acquiring one
1780		data point. The HW will do <type>[_name]_oversampling_ratio
1781		measurements and return the average value as output data. Each
1782		value resulted from <type>[_name]_oversampling_ratio measurements
1783		is considered as one sample for <type>[_name]_sampling_frequency.
1784
1785What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1786What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1787What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1788What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1789What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1790What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1791What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1792What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1793What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
1794What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
1795What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1796What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1797KernelVersion:	4.3
1798Contact:	linux-iio@vger.kernel.org
1799Description:
1800		Raw (unscaled no offset etc.) reading of a substance. Units
1801		after application of scale and offset are percents.
1802
1803What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1804What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1805What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1806What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1807KernelVersion:	4.3
1808Contact:	linux-iio@vger.kernel.org
1809Description:
1810		Raw (unscaled no offset etc.) resistance reading.
1811		Units after application of scale and offset are ohms.
1812
1813What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
1814KernelVersion:	4.1.0
1815Contact:	linux-iio@vger.kernel.org
1816Description:
1817		'1' (enable) or '0' (disable) specifying the enable
1818		of heater function. Same reading values apply.
1819
1820		This ABI is especially applicable for humidity sensors
1821		to heatup the device and get rid of any condensation
1822		in some humidity environment
1823
1824What:		/sys/bus/iio/devices/iio:deviceX/in_ph_raw
1825KernelVersion:	4.5
1826Contact:	linux-iio@vger.kernel.org
1827Description:
1828		Raw (unscaled no offset etc.) pH reading of a substance as a negative
1829		base-10 logarithm of hydrodium ions in a litre of water.
1830
1831What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
1832What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1833What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1834What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1835What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1836KernelVersion:  4.6
1837Contact:        linux-iio@vger.kernel.org
1838Description:
1839		Mounting matrix for IIO sensors. This is a rotation matrix which
1840		informs userspace about sensor chip's placement relative to the
1841		main hardware it is mounted on.
1842
1843		Main hardware placement is defined according to the local
1844		reference frame related to the physical quantity the sensor
1845		measures.
1846
1847		Given that the rotation matrix is defined in a board specific
1848		way (platform data and / or device-tree), the main hardware
1849		reference frame definition is left to the implementor's choice
1850		(see below for a magnetometer example).
1851
1852		Applications should apply this rotation matrix to samples so
1853		that when main hardware reference frame is aligned onto local
1854		reference frame, then sensor chip reference frame is also
1855		perfectly aligned with it.
1856
1857		Matrix is a 3x3 unitary matrix and typically looks like
1858		[0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1859		[1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1860		are perfectly aligned with each other.
1861
1862		For example, a mounting matrix for a magnetometer sensor informs
1863		userspace about sensor chip's ORIENTATION relative to the main
1864		hardware.
1865
1866		More specifically, main hardware orientation is defined with
1867		respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1868
1869		* Y is in the ground plane and positive towards magnetic North ;
1870		* X is in the ground plane, perpendicular to the North axis and
1871		  positive towards the East ;
1872		* Z is perpendicular to the ground plane and positive upwards.
1873
1874		An implementor might consider that for a hand-held device, a
1875		'natural' orientation would be 'front facing camera at the top'.
1876		The main hardware reference frame could then be described as :
1877
1878		* Y is in the plane of the screen and is positive towards the
1879		  top of the screen ;
1880		* X is in the plane of the screen, perpendicular to Y axis, and
1881		  positive towards the right hand side of the screen ;
1882		* Z is perpendicular to the screen plane and positive out of the
1883		  screen.
1884
1885		Another example for a quadrotor UAV might be :
1886
1887		* Y is in the plane of the propellers and positive towards the
1888		  front-view camera;
1889		* X is in the plane of the propellers, perpendicular to Y axis,
1890		  and positive towards the starboard side of the UAV ;
1891		* Z is perpendicular to propellers plane and positive upwards.
1892
1893What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1894KernelVersion:	4.8
1895Contact:	linux-iio@vger.kernel.org
1896Description:
1897		Raw (unscaled no offset etc.) electric conductivity reading.
1898		Units after application of scale and offset are siemens per
1899		meter.
1900
1901What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
1902KernelVersion:	4.10
1903Contact:	linux-iio@vger.kernel.org
1904Description:
1905		This interface is deprecated; please use the Counter subsystem.
1906
1907		Raw counter device counts from channel Y. For quadrature
1908		counters, multiplication by an available [Y]_scale results in
1909		the counts of a single quadrature signal phase from channel Y.
1910
1911What:		/sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1912KernelVersion:	4.10
1913Contact:	linux-iio@vger.kernel.org
1914Description:
1915		This interface is deprecated; please use the Counter subsystem.
1916
1917		Raw counter device index value from channel Y. This attribute
1918		provides an absolute positional reference (e.g. a pulse once per
1919		revolution) which may be used to home positional systems as
1920		required.
1921
1922What:		/sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1923KernelVersion:	4.12
1924Contact:	linux-iio@vger.kernel.org
1925Description:
1926		This interface is deprecated; please use the Counter subsystem.
1927
1928		A list of possible counting directions which are:
1929
1930		- "up"	: counter device is increasing.
1931		- "down": counter device is decreasing.
1932
1933What:		/sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1934KernelVersion:	4.12
1935Contact:	linux-iio@vger.kernel.org
1936Description:
1937		This interface is deprecated; please use the Counter subsystem.
1938
1939		Raw counter device counters direction for channel Y.
1940
1941What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_label
1942What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_label
1943KernelVersion:	5.8
1944Contact:	linux-iio@vger.kernel.org
1945Description:
1946		Optional symbolic label to a device channel.
1947		If a label is defined for this channel add that to the channel
1948		specific attributes. This is useful for userspace to be able to
1949		better identify an individual channel.
1950
1951What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1952KernelVersion:	4.18
1953Contact:	linux-iio@vger.kernel.org
1954Description:
1955		Raw (unscaled) phase difference reading from channel Y.
1956		Units after application of scale and offset are radians.
1957
1958What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1959What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1960What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1961What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1962What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1963What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1964What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1965What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1966KernelVersion:	4.22
1967Contact:	linux-iio@vger.kernel.org
1968Description:
1969		Mass concentration reading of particulate matter in ug / m3.
1970		pmX consists of particles with aerodynamic diameter less or
1971		equal to X micrometers.
1972
1973What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
1974Date:		November 2019
1975KernelVersion:	5.4
1976Contact:	linux-iio@vger.kernel.org
1977Description:
1978		List of valid periods (in seconds) for which the light intensity
1979		must be above the threshold level before interrupt is asserted.
1980
1981What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
1982KernelVersion:	5.5
1983Contact:	linux-iio@vger.kernel.org
1984Description:
1985		Center frequency in Hz for a notch filter. Used i.e. for line
1986		noise suppression.
1987
1988What:		/sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
1989KernelVersion:	5.5
1990Contact:	linux-iio@vger.kernel.org
1991Description:
1992		One of the following thermocouple types: B, E, J, K, N, R, S, T.
1993
1994What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
1995What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
1996KernelVersion:	5.10
1997Contact:	linux-iio@vger.kernel.org
1998Description:
1999		Calibrated ambient temperature for object temperature
2000		calculation in milli degrees Celsius.
2001
2002What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
2003What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
2004What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
2005KernelVersion:	5.10
2006Contact:	linux-iio@vger.kernel.org
2007Description:
2008		Unscaled light intensity according to CIE 1931/DIN 5033 color space.
2009		Units after application of scale are nano nanowatts per square meter.
2010
2011What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_label
2012KernelVersion:	5.12
2013Contact:	linux-iio@vger.kernel.org
2014Description:
2015		Optional symbolic label for channel Y.
2016		For Intel hid hinge sensor, the label values are:
2017		hinge, keyboard, screen. It means the three channels
2018		each correspond respectively to hinge angle, keyboard angle,
2019		and screen angle.
2020
2021What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative
2022What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative
2023KernelVersion:	5.12
2024Contact:	linux-iio@vger.kernel.org
2025Description:
2026		Specify the percent for light sensor relative to the channel
2027		absolute value that a data field should change before an event
2028		is generated. Units are a percentage of the prior reading.
2029
2030What:		/sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
2031Date:		June 2020
2032KernelVersion:	5.8
2033Contact:	linux-iio@vger.kernel.org
2034Description:
2035		Some sensors have the ability to apply auto calibration at
2036		runtime. For example, it may be necessary to compensate for
2037		contaminant build-up in a measurement chamber or optical
2038		element deterioration that would otherwise lead to sensor drift.
2039
2040		Writing 1 or 0 to this attribute will respectively activate or
2041		deactivate this auto calibration function.
2042
2043		Upon reading, the current status is returned.
2044
2045What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value
2046Date:		June 2020
2047KernelVersion:	5.8
2048Contact:	linux-iio@vger.kernel.org
2049Description:
2050		Some sensors have the ability to apply a manual calibration using
2051		a known measurement value, perhaps obtained from an external
2052		reference device.
2053
2054		Writing a value to this function will force such a calibration
2055		change. For the scd30 the value should be from the range
2056		[400 1 2000].
2057
2058		Note for the scd30 that a valid value may only be obtained once
2059		it is has been written. Until then any read back of this value
2060		should be ignored. As for the scd4x an error will be returned
2061		immediately if the manual calibration has failed.
2062
2063What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available
2064KernelVersion:  5.15
2065Contact:        linux-iio@vger.kernel.org
2066Description:
2067		Available range for the forced calibration value, expressed as:
2068
2069		- a range specified as "[min step max]"
2070
2071What:		/sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency
2072What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency
2073What:		/sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency
2074KernelVersion:	5.20
2075Contact:	linux-iio@vger.kernel.org
2076Description:
2077		Some devices have separate controls of sampling frequency for
2078		individual channels. If multiple channels are enabled in a scan,
2079		then the sampling_frequency of the scan may be computed from the
2080		per channel sampling frequencies.
2081
2082What:		/sys/.../events/in_accel_gesture_singletap_en
2083What:		/sys/.../events/in_accel_gesture_doubletap_en
2084KernelVersion:	6.1
2085Contact:	linux-iio@vger.kernel.org
2086Description:
2087		Device generates an event on a single or double tap.
2088
2089What:		/sys/.../events/in_accel_gesture_singletap_value
2090What:		/sys/.../events/in_accel_gesture_doubletap_value
2091KernelVersion:	6.1
2092Contact:	linux-iio@vger.kernel.org
2093Description:
2094		Specifies the threshold value that the device is comparing
2095		against to generate the tap gesture event. The lower
2096		threshold value increases the sensitivity of tap detection.
2097		Units and the exact meaning of value are device-specific.
2098
2099What:		/sys/.../events/in_accel_gesture_tap_value_available
2100KernelVersion:	6.1
2101Contact:	linux-iio@vger.kernel.org
2102Description:
2103		Lists all available threshold values which can be used to
2104		modify the sensitivity of the tap detection.
2105
2106What:		/sys/.../events/in_accel_gesture_singletap_reset_timeout
2107What:		/sys/.../events/in_accel_gesture_doubletap_reset_timeout
2108KernelVersion:	6.1
2109Contact:	linux-iio@vger.kernel.org
2110Description:
2111		Specifies the timeout value in seconds for the tap detector
2112		to not to look for another tap event after the event as
2113		occurred. Basically the minimum quiet time between the two
2114		single-tap's or two double-tap's.
2115
2116What:		/sys/.../events/in_accel_gesture_tap_reset_timeout_available
2117KernelVersion:	6.1
2118Contact:	linux-iio@vger.kernel.org
2119Description:
2120		Lists all available tap reset timeout values. Units in seconds.
2121
2122What:		/sys/.../events/in_accel_gesture_doubletap_tap2_min_delay
2123KernelVersion:	6.1
2124Contact:	linux-iio@vger.kernel.org
2125Description:
2126		Specifies the minimum quiet time in seconds between the two
2127		taps of a double tap.
2128
2129What:		/sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available
2130KernelVersion:	6.1
2131Contact:	linux-iio@vger.kernel.org
2132Description:
2133		Lists all available delay values between two taps in the double
2134		tap. Units in seconds.
2135
2136What:		/sys/.../events/in_accel_gesture_tap_maxtomin_time
2137KernelVersion:	6.1
2138Contact:	linux-iio@vger.kernel.org
2139Description:
2140		Specifies the maximum time difference allowed between upper
2141		and lower peak of tap to consider it as the valid tap event.
2142		Units in seconds.
2143
2144What:		/sys/.../events/in_accel_gesture_tap_maxtomin_time_available
2145KernelVersion:	6.1
2146Contact:	linux-iio@vger.kernel.org
2147Description:
2148		Lists all available time values between upper peak to lower
2149		peak. Units in seconds.
2150
2151What:		/sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw
2152What:		/sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw
2153What:		/sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw
2154KernelVersion:	6.1
2155Contact:	linux-iio@vger.kernel.org
2156Description:
2157		Raw (unscaled) euler angles readings. Units after
2158		application of scale are deg.
2159
2160What:		/sys/bus/iio/devices/iio:deviceX/serialnumber
2161KernelVersion:	6.1
2162Contact:	linux-iio@vger.kernel.org
2163Description:
2164		An example format is 16-bytes, 2-digits-per-byte, HEX-string
2165		representing the sensor unique ID number.
2166