xref: /linux/Documentation/ABI/testing/sysfs-bus-iio (revision c5dbf04160005e07e8ca7232a7faa77ab1547ae0)
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_deltaangl_x_raw
283What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_y_raw
284What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_z_raw
285KernelVersion:	6.5
286Contact:	linux-iio@vger.kernel.org
287Description:
288		Angular displacement between two consecutive samples on x, y or
289		z (may be arbitrarily assigned but should match other such
290		assignments on device).
291		In order to compute the total angular displacement during a
292		desired period of time, the application should sum-up the delta
293		angle samples acquired during that time.
294		Units after application of scale and offset are radians.
295
296What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw
297What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw
298What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw
299KernelVersion:	6.5
300Contact:	linux-iio@vger.kernel.org
301Description:
302		The linear velocity change between two consecutive samples on x,
303		y or z (may be arbitrarily assigned but should match other such
304		assignments on device).
305		In order to compute the total linear velocity change during a
306		desired period of time, the application should sum-up the delta
307		velocity samples acquired during that time.
308		Units after application of scale and offset are meters per
309		second.
310
311What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
312What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
313KernelVersion:	4.17
314Contact:	linux-iio@vger.kernel.org
315Description:
316		Angle of rotation. Units after application of scale and offset
317		are radians.
318
319What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
320What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
321KernelVersion:	4.19
322Contact:	linux-iio@vger.kernel.org
323Description:
324		Relative position in direction x or y on a pad (may be
325		arbitrarily assigned but should match other such assignments on
326		device).
327		Units after application of scale and offset are milli percents
328		from the pad's size in both directions. Should be calibrated by
329		the consumer.
330
331What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
332What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
333What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
334KernelVersion:	2.6.35
335Contact:	linux-iio@vger.kernel.org
336Description:
337		Angular velocity about axis x, y or z (may be arbitrarily
338		assigned). Has all the equivalent parameters as	per voltageY.
339		Units after application of scale and offset are	radians per
340		second.
341
342What:		/sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
343What:		/sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
344What:		/sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
345KernelVersion:	2.6.35
346Contact:	linux-iio@vger.kernel.org
347Description:
348		Inclination raw reading about axis x, y or z (may be
349		arbitrarily assigned). Data converted by application of offset
350		and scale to degrees.
351
352What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
353What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
354What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
355KernelVersion:	2.6.35
356Contact:	linux-iio@vger.kernel.org
357Description:
358		Magnetic field along axis x, y or z (may be arbitrarily
359		assigned).  Data converted by application of offset
360		then scale to Gauss.
361
362What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
363What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
364What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
365KernelVersion:	2.6.36
366Contact:	linux-iio@vger.kernel.org
367Description:
368		Highest value since some reset condition.  These
369		attributes allow access to this and are otherwise
370		the direct equivalent of the <type>Y[_name]_raw attributes.
371
372What:		/sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
373KernelVersion:	2.6.36
374Contact:	linux-iio@vger.kernel.org
375Description:
376		A computed peak value based on the sum squared magnitude of
377		the underlying value in the specified directions.
378
379What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
380What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_raw
381KernelVersion:	3.8
382Contact:	linux-iio@vger.kernel.org
383Description:
384		Raw pressure measurement from channel Y. Units after
385		application of scale and offset are kilopascal.
386
387What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_input
388What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_input
389KernelVersion:	3.8
390Contact:	linux-iio@vger.kernel.org
391Description:
392		Scaled pressure measurement from channel Y, in kilopascal.
393
394What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
395KernelVersion:	3.14
396Contact:	linux-iio@vger.kernel.org
397Description:
398		Raw humidity measurement of air. Units after application of
399		scale and offset are milli percent.
400
401What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
402KernelVersion:	3.14
403Contact:	linux-iio@vger.kernel.org
404Description:
405		Scaled humidity measurement in milli percent.
406
407What:		/sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
408KernelVersion:	3.5
409Contact:	linux-iio@vger.kernel.org
410Description:
411		Averaged raw measurement from channel X. The number of values
412		used for averaging is device specific. The converting rules for
413		normal raw values also applies to the averaged raw values.
414
415What:		/sys/bus/iio/devices/iio:deviceX/in_accel_offset
416What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
417What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
418What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
419What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
420What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_offset
421What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
422What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
423What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
424What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
425What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_offset
426What:		/sys/bus/iio/devices/iio:deviceX/in_current_offset
427What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
428What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
429What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_offset
430What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_offset
431What:		/sys/bus/iio/devices/iio:deviceX/in_tempY_offset
432What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
433What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
434What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
435What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
436What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
437What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
438What:		/sys/bus/iio/devices/iio:deviceX/in_angl_offset
439What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
440KernelVersion:	2.6.35
441Contact:	linux-iio@vger.kernel.org
442Description:
443		If known for a device, offset to be added to <type>[Y]_raw prior
444		to scaling by <type>[Y]_scale in order to obtain value in the
445		<type> units as specified in <type>[Y]_raw documentation.
446		Not present if the offset is always 0 or unknown. If Y or
447		axis <x|y|z> is not present, then the offset applies to all
448		in channels of <type>.
449		May be writable if a variable offset can be applied on the
450		device. Note that this is different to calibbias which
451		is for devices (or drivers) that apply offsets to compensate
452		for variation between different instances of the part, typically
453		adjusted by using some hardware supported calibration procedure.
454		Calibbias is applied internally, offset is applied in userspace
455		to the _raw output.
456
457What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
458What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
459What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
460What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
461What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_scale
462What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
463What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
464What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
465What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
466What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
467What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_scale
468What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
469What:		/sys/bus/iio/devices/iio:deviceX/in_current_scale
470What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
471What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
472What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_scale
473What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_scale
474What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale
475What:		/sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
476What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
477What:		/sys/bus/iio/devices/iio:deviceX/in_energy_scale
478What:		/sys/bus/iio/devices/iio:deviceX/in_distance_scale
479What:		/sys/bus/iio/devices/iio:deviceX/in_magn_scale
480What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
481What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
482What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
483What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
484What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
485What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
486What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
487What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
488What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
489What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
490What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
491What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
492What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
493What:		/sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale
494What:		/sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale
495What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
496What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
497What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
498What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
499What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale
500KernelVersion:	2.6.35
501Contact:	linux-iio@vger.kernel.org
502Description:
503		If known for a device, scale to be applied to <type>Y[_name]_raw
504		post addition of <type>[Y][_name]_offset in order to obtain the
505		measured value in <type> units as specified in
506		<type>[Y][_name]_raw documentation.  If shared across all in
507		channels then Y and <x|y|z> are not present and the value is
508		called <type>[Y][_name]_scale. The peak modifier means this
509		value is applied to <type>Y[_name]_peak_raw values.
510
511What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
512What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
513What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
514What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
515What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
516What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
517What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
518What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
519What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
520What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
521KernelVersion:	2.6.35
522Contact:	linux-iio@vger.kernel.org
523Description:
524		Hardware applied calibration offset (assumed to fix production
525		inaccuracies).
526		icm42600: For this device values are real physical offsets
527		expressed in SI units (m/s^2 for accelerometers and rad/s
528		for gyroscope)/
529
530What:		/sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
531What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
532KernelVersion:  5.8
533Contact:        linux-iio@vger.kernel.org
534Description:
535		Available values of calibbias. Maybe expressed as either of:
536
537		- a small discrete set of values like "0 2 4 6 8"
538		- a range specified as "[min step max]"
539
540What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
541What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
542What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
543What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
544What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
545What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
546What:		/sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
547What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
548What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
549What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
550What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
551What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
552What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
553What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
554What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
555What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
556What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
557What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
558What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
559KernelVersion:	2.6.35
560Contact:	linux-iio@vger.kernel.org
561Description:
562		Hardware applied calibration scale factor (assumed to fix
563		production inaccuracies).  If shared across all channels,
564		<type>_calibscale is used.
565
566What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
567What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
568What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
569What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
570KernelVersion:	4.0
571Contact:	linux-iio@vger.kernel.org
572Description:
573		Gender of the user (e.g.: male, female) used by some pedometers
574		to compute the stride length, distance, speed and activity
575		type.
576
577What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
578What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
579What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
580What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
581KernelVersion:	4.0
582Contact:	linux-iio@vger.kernel.org
583Description:
584		Lists all available gender values (e.g.: male, female).
585
586What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
587What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
588What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
589What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
590KernelVersion:	3.19
591Contact:	linux-iio@vger.kernel.org
592Description:
593		Height of the user (in meters) used by some pedometers
594		to compute the stride length, distance, speed and activity
595		type.
596
597What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
598KernelVersion:	4.0
599Contact:	linux-iio@vger.kernel.org
600Description:
601		Weight of the user (in kg). It is needed by some pedometers
602		to compute the calories burnt by the user.
603
604What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
605What:		/sys/.../iio:deviceX/in_anglvel_scale_available
606What:		/sys/.../iio:deviceX/in_magn_scale_available
607What:		/sys/.../iio:deviceX/in_illuminance_scale_available
608What:		/sys/.../iio:deviceX/in_intensity_scale_available
609What:		/sys/.../iio:deviceX/in_proximity_scale_available
610What:		/sys/.../iio:deviceX/in_voltageX_scale_available
611What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
612What:		/sys/.../iio:deviceX/out_voltageX_scale_available
613What:		/sys/.../iio:deviceX/out_altvoltageX_scale_available
614What:		/sys/.../iio:deviceX/in_capacitance_scale_available
615What:		/sys/.../iio:deviceX/in_pressure_scale_available
616What:		/sys/.../iio:deviceX/in_pressureY_scale_available
617KernelVersion:	2.6.35
618Contact:	linux-iio@vger.kernel.org
619Description:
620		If a discrete set of scale values is available, they
621		are listed in this attribute.
622
623What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
624What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
625What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
626What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
627What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
628What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
629KernelVersion:	2.6.35
630Contact:	linux-iio@vger.kernel.org
631Description:
632		Hardware applied gain factor. If shared across all channels,
633		<type>_hardwaregain is used.
634
635What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
636KernelVersion:	5.10
637Contact:	linux-iio@vger.kernel.org
638Description:
639		Lists all available hardware applied gain factors. Shared across all
640		channels.
641
642What:		/sys/.../in_accel_filter_low_pass_3db_frequency
643What:		/sys/.../in_magn_filter_low_pass_3db_frequency
644What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
645KernelVersion:	3.2
646Contact:	linux-iio@vger.kernel.org
647Description:
648		If a known or controllable low pass filter is applied
649		to the underlying data channel, then this parameter
650		gives the 3dB frequency of the filter in Hz.
651
652What:		/sys/.../in_accel_filter_high_pass_3db_frequency
653What:		/sys/.../in_anglvel_filter_high_pass_3db_frequency
654What:		/sys/.../in_magn_filter_high_pass_3db_frequency
655KernelVersion:	4.2
656Contact:	linux-iio@vger.kernel.org
657Description:
658		If a known or controllable high pass filter is applied
659		to the underlying data channel, then this parameter
660		gives the 3dB frequency of the filter in Hz.
661
662What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
663What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
664KernelVersion:	2.6.37
665Contact:	linux-iio@vger.kernel.org
666Description:
667		Raw (unscaled, no bias etc.) output voltage for
668		channel Y.  The number must always be specified and
669		unique if the output corresponds to a single channel.
670		While DAC like devices typically use out_voltage,
671		a continuous frequency generating device, such as
672		a DDS or PLL should use out_altvoltage.
673
674What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
675What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
676KernelVersion:	2.6.37
677Contact:	linux-iio@vger.kernel.org
678Description:
679		Raw (unscaled, no bias etc.) output voltage for an aggregate of
680		channel Y, channel Z, etc.  This interface is available in cases
681		where a single output sets the value for multiple channels
682		simultaneously.
683
684What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
685What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
686What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
687What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
688KernelVersion:	2.6.38
689Contact:	linux-iio@vger.kernel.org
690Description:
691		Specifies the output powerdown mode.
692		DAC output stage is disconnected from the amplifier and
693		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
694		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
695		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
696		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
697		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
698		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
699		125kohm_to_gnd: connected to ground via an 125kOhm resistor,
700		500kohm_to_gnd: connected to ground via a 500kOhm resistor,
701		640kohm_to_gnd: connected to ground via a 640kOhm resistor,
702		three_state: left floating.
703		For a list of available output power down options read
704		outX_powerdown_mode_available. If Y is not present the
705		mode is shared across all outputs.
706
707What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
708What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
709What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
710What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
711KernelVersion:	2.6.38
712Contact:	linux-iio@vger.kernel.org
713Description:
714		Lists all available output power down modes.
715		If Y is not present the mode is shared across all outputs.
716
717What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
718What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
719What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
720What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
721KernelVersion:	2.6.38
722Contact:	linux-iio@vger.kernel.org
723Description:
724		Writing 1 causes output Y to enter the power down mode specified
725		by the corresponding outY_powerdown_mode. DAC output stage is
726		disconnected from the amplifier. Clearing returns to normal
727		operation. Y may be suppressed if all outputs are controlled
728		together.
729
730What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
731KernelVersion:	3.4.0
732Contact:	linux-iio@vger.kernel.org
733Description:
734		Output frequency for channel Y in Hz. The number must always be
735		specified and unique if the output corresponds to a single
736		channel.
737		Some drivers have additional constraints:
738		ADF4371 has an integrated VCO with fundamendal output
739		frequency ranging from 4000000000 Hz 8000000000 Hz.
740
741		out_altvoltage0_frequency:
742			A divide by 1, 2, 4, 8, 16, 32 or circuit generates
743			frequencies from 62500000 Hz to 8000000000 Hz.
744		out_altvoltage1_frequency:
745			This channel duplicates the channel 0 frequency
746		out_altvoltage2_frequency:
747			A frequency doubler generates frequencies from
748			8000000000 Hz to 16000000000 Hz.
749		out_altvoltage3_frequency:
750			A frequency quadrupler generates frequencies from
751			16000000000 Hz to 32000000000 Hz.
752
753		Note: writes to one of the channels will affect the frequency of
754		all the other channels, since it involves changing the VCO
755		fundamental output frequency.
756
757What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
758KernelVersion:	3.4.0
759Contact:	linux-iio@vger.kernel.org
760Description:
761		Phase in radians of one frequency/clock output Y
762		(out_altvoltageY) relative to another frequency/clock output
763		(out_altvoltageZ) of the device X. The number must always be
764		specified and unique if the output corresponds to a single
765		channel.
766
767What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
768Date:		May 2012
769KernelVersion:	3.5
770Contact:	Johan Hovold <jhovold@gmail.com>
771Description:
772		Set/get output current for channel Y. Units after application
773		of scale and offset are milliamps.
774		For some devices current channels are used to specify
775		current supplied to elements used in taking a measurement
776		of a different type. E.g. LED currents.
777
778What:		/sys/bus/iio/devices/iio:deviceX/events
779KernelVersion:	2.6.35
780Contact:	linux-iio@vger.kernel.org
781Description:
782		Configuration of which hardware generated events are passed up
783		to user-space.
784
785What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
786What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
787What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
788What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
789What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
790What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
791What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
792What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
793What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
794What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
795What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
796What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
797What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
798What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
799What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
800What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
801What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
802What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
803What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
804What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
805What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
806What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
807What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
808What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
809What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
810What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
811What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
812What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
813What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
814What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
815What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
816What:		/sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
817What:		/sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
818What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
819What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
820KernelVersion:	2.6.37
821Contact:	linux-iio@vger.kernel.org
822Description:
823		Event generated when channel passes a threshold in the specified
824		(_rising|_falling) direction. If the direction is not specified,
825		then either the device will report an event which ever direction
826		a single threshold value is passed in (e.g.
827		<type>[Y][_name]_<raw|input>_thresh_value) or
828		<type>[Y][_name]_<raw|input>_thresh_rising_value and
829		<type>[Y][_name]_<raw|input>_thresh_falling_value may take
830		different values, but the device can only enable both thresholds
831		or neither.
832
833		Note the driver will assume the last p events requested are
834		to be enabled where p is how many it supports (which may vary
835		depending on the exact set requested. So if you want to be
836		sure you have set what you think you have, check the contents of
837		these attributes after everything is configured. Drivers may
838		have to buffer any parameters so that they are consistent when
839		a given event type is enabled at a future point (and not those for
840		whatever event was previously enabled).
841
842What:		/sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
843What:		/sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
844What:		/sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
845What:		/sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
846What:		/sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
847What:		/sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
848What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
849What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
850What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
851What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
852What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
853What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
854What:		/sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
855What:		/sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
856What:		/sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
857What:		/sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
858What:		/sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
859What:		/sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
860What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
861What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
862What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
863What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
864What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
865What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
866What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
867What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
868What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
869What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
870What:		/sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
871What:		/sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
872What:		/sys/.../iio:deviceX/events/in_tempY_roc_rising_en
873What:		/sys/.../iio:deviceX/events/in_tempY_roc_falling_en
874KernelVersion:	2.6.37
875Contact:	linux-iio@vger.kernel.org
876Description:
877		Event generated when channel passes a threshold on the rate of
878		change (1st differential) in the specified (_rising|_falling)
879		direction. If the direction is not specified, then either the
880		device will report an event which ever direction a single
881		threshold value is passed in (e.g.
882		<type>[Y][_name]_<raw|input>_roc_value) or
883		<type>[Y][_name]_<raw|input>_roc_rising_value and
884		<type>[Y][_name]_<raw|input>_roc_falling_value may take
885		different values, but the device can only enable both rate of
886		change thresholds or neither.
887
888		Note the driver will assume the last p events requested are
889		to be enabled where p is however many it supports (which may
890		vary depending on the exact set requested. So if you want to be
891		sure you have set what you think you have, check the contents of
892		these attributes after everything is configured. Drivers may
893		have to buffer any parameters so that they are consistent when
894		a given event type is enabled a future point (and not those for
895		whatever event was previously enabled).
896
897What:		/sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
898What:		/sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
899KernelVersion:	5.13
900Contact:	linux-iio@vger.kernel.org
901Description:
902		Adaptive thresholds are similar to normal fixed thresholds
903		but the value is expressed as an offset from a value which
904		provides a low frequency approximation of the channel itself.
905		Thus these detect if a rapid change occurs in the specified
906		direction which crosses tracking value + offset.
907		Tracking value calculation is devices specific.
908
909What:		/sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
910What:		/sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
911KernelVersion:	5.11
912Contact:	linux-iio@vger.kernel.org
913Description:
914		When adaptive thresholds are used, the tracking signal
915		may adjust too slowly to step changes in the raw signal.
916		Thus these specify the time in seconds for which the
917		difference between the slow tracking signal and the raw
918		signal is allowed to remain out-of-range before a reset
919		event occurs in which the tracking signal is made equal
920		to the raw signal, allowing slow tracking to resume and the
921		adaptive threshold event detection to function as expected.
922
923What:		/sys/.../events/in_accel_thresh_rising_value
924What:		/sys/.../events/in_accel_thresh_falling_value
925What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
926What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
927What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
928What:		/sys/.../events/in_accel_y_raw_thresh_falling_value
929What:		/sys/.../events/in_accel_z_raw_thresh_rising_value
930What:		/sys/.../events/in_accel_z_raw_thresh_falling_value
931What:		/sys/.../events/in_anglvel_x_raw_thresh_rising_value
932What:		/sys/.../events/in_anglvel_x_raw_thresh_falling_value
933What:		/sys/.../events/in_anglvel_y_raw_thresh_rising_value
934What:		/sys/.../events/in_anglvel_y_raw_thresh_falling_value
935What:		/sys/.../events/in_anglvel_z_raw_thresh_rising_value
936What:		/sys/.../events/in_anglvel_z_raw_thresh_falling_value
937What:		/sys/.../events/in_magn_x_raw_thresh_rising_value
938What:		/sys/.../events/in_magn_x_raw_thresh_falling_value
939What:		/sys/.../events/in_magn_y_raw_thresh_rising_value
940What:		/sys/.../events/in_magn_y_raw_thresh_falling_value
941What:		/sys/.../events/in_magn_z_raw_thresh_rising_value
942What:		/sys/.../events/in_magn_z_raw_thresh_falling_value
943What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
944What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
945What:		/sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
946What:		/sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
947What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
948What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
949What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
950What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
951What:		/sys/.../events/in_voltageY_supply_raw_thresh_rising_value
952What:		/sys/.../events/in_voltageY_supply_raw_thresh_falling_value
953What:		/sys/.../events/in_voltageY_raw_thresh_rising_value
954What:		/sys/.../events/in_voltageY_raw_thresh_falling_value
955What:		/sys/.../events/in_tempY_raw_thresh_rising_value
956What:		/sys/.../events/in_tempY_raw_thresh_falling_value
957What:		/sys/.../events/in_illuminance0_thresh_falling_value
958What:		/sys/.../events/in_illuminance0_thresh_rising_value
959What:		/sys/.../events/in_proximity0_thresh_falling_value
960What:		/sys/.../events/in_proximity0_thresh_rising_value
961What:		/sys/.../events/in_illuminance_thresh_rising_value
962What:		/sys/.../events/in_illuminance_thresh_falling_value
963What:		/sys/.../events/in_capacitanceY_thresh_rising_value
964What:		/sys/.../events/in_capacitanceY_thresh_falling_value
965What:		/sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
966What:		/sys/.../events/in_capacitanceY_thresh_falling_rising_value
967KernelVersion:	2.6.37
968Contact:	linux-iio@vger.kernel.org
969Description:
970		Specifies the value of threshold that the device is comparing
971		against for the events enabled by
972		<type>Y[_name]_thresh[_rising|falling]_en.
973
974		If separate attributes exist for the two directions, but
975		direction is not specified for this attribute, then a single
976		threshold value applies to both directions.
977
978		The raw or input element of the name indicates whether the
979		value is in raw device units or in processed units (as _raw
980		and _input do on sysfs direct channel read attributes).
981
982What:		/sys/.../events/in_accel_scale
983What:		/sys/.../events/in_accel_peak_scale
984What:		/sys/.../events/in_anglvel_scale
985What:		/sys/.../events/in_magn_scale
986What:		/sys/.../events/in_rot_from_north_magnetic_scale
987What:		/sys/.../events/in_rot_from_north_true_scale
988What:		/sys/.../events/in_voltage_scale
989What:		/sys/.../events/in_voltage_supply_scale
990What:		/sys/.../events/in_temp_scale
991What:		/sys/.../events/in_illuminance_scale
992What:		/sys/.../events/in_proximity_scale
993KernelVersion:	3.21
994Contact:	linux-iio@vger.kernel.org
995Description:
996                Specifies the conversion factor from the standard units
997                to device specific units used to set the event trigger
998                threshold.
999
1000What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
1001What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
1002What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
1003What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
1004What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
1005What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
1006What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
1007What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
1008What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
1009What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
1010What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
1011What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
1012What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
1013What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
1014What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
1015What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
1016What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
1017What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
1018What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
1019What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
1020What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
1021What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
1022What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
1023What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
1024What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
1025What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
1026What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
1027What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
1028What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
1029What:		/sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
1030What:		/sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
1031What:		/sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
1032What:		/sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
1033What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
1034What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
1035What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
1036What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
1037What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
1038What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
1039What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
1040What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
1041What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
1042What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
1043What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
1044What:		/sys/.../events/in_tempY_thresh_either_hysteresis
1045What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
1046What:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
1047What:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
1048What:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
1049What:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
1050What:		/sys/.../events/in_proximity0_thresh_either_hysteresis
1051KernelVersion:	3.13
1052Contact:	linux-iio@vger.kernel.org
1053Description:
1054		Specifies the hysteresis of threshold that the device is comparing
1055		against for the events enabled by
1056		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
1057		If separate attributes exist for the two directions, but
1058		direction is not specified for this attribute, then a single
1059		hysteresis value applies to both directions.
1060
1061		For falling events the hysteresis is added to the _value attribute for
1062		this event to get the upper threshold for when the event goes back to
1063		normal, for rising events the hysteresis is subtracted from the _value
1064		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
1065		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
1066		will get activated once in_voltage0_raw goes above 1200 and will become
1067		deactivated again once the value falls below 1150.
1068
1069What:		/sys/.../events/in_accel_x_raw_roc_rising_value
1070What:		/sys/.../events/in_accel_x_raw_roc_falling_value
1071What:		/sys/.../events/in_accel_y_raw_roc_rising_value
1072What:		/sys/.../events/in_accel_y_raw_roc_falling_value
1073What:		/sys/.../events/in_accel_z_raw_roc_rising_value
1074What:		/sys/.../events/in_accel_z_raw_roc_falling_value
1075What:		/sys/.../events/in_anglvel_x_raw_roc_rising_value
1076What:		/sys/.../events/in_anglvel_x_raw_roc_falling_value
1077What:		/sys/.../events/in_anglvel_y_raw_roc_rising_value
1078What:		/sys/.../events/in_anglvel_y_raw_roc_falling_value
1079What:		/sys/.../events/in_anglvel_z_raw_roc_rising_value
1080What:		/sys/.../events/in_anglvel_z_raw_roc_falling_value
1081What:		/sys/.../events/in_magn_x_raw_roc_rising_value
1082What:		/sys/.../events/in_magn_x_raw_roc_falling_value
1083What:		/sys/.../events/in_magn_y_raw_roc_rising_value
1084What:		/sys/.../events/in_magn_y_raw_roc_falling_value
1085What:		/sys/.../events/in_magn_z_raw_roc_rising_value
1086What:		/sys/.../events/in_magn_z_raw_roc_falling_value
1087What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
1088What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
1089What:		/sys/.../events/in_rot_from_north_true_raw_roc_rising_value
1090What:		/sys/.../events/in_rot_from_north_true_raw_roc_falling_value
1091What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
1092What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
1093What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
1094What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
1095What:		/sys/.../events/in_voltageY_supply_raw_roc_rising_value
1096What:		/sys/.../events/in_voltageY_supply_raw_roc_falling_value
1097What:		/sys/.../events/in_voltageY_raw_roc_rising_value
1098What:		/sys/.../events/in_voltageY_raw_roc_falling_value
1099What:		/sys/.../events/in_tempY_raw_roc_rising_value
1100What:		/sys/.../events/in_tempY_raw_roc_falling_value
1101KernelVersion:	2.6.37
1102Contact:	linux-iio@vger.kernel.org
1103Description:
1104		Specifies the value of rate of change threshold that the
1105		device is comparing against for the events enabled by
1106		<type>[Y][_name]_roc[_rising|falling]_en.
1107
1108		If separate attributes exist for the two directions,
1109		but direction is not specified for this attribute,
1110		then a single threshold value applies to both directions.
1111		The raw or input element of the name indicates whether the
1112		value is in raw device units or in processed units (as _raw
1113		and _input do on sysfs direct channel read attributes).
1114
1115What:		/sys/.../events/in_accel_x_thresh_rising_period
1116What:		/sys/.../events/in_accel_x_thresh_falling_period
1117What:		/sys/.../events/in_accel_x_roc_rising_period
1118What:		/sys/.../events/in_accel_x_roc_falling_period
1119What:		/sys/.../events/in_accel_y_thresh_rising_period
1120What:		/sys/.../events/in_accel_y_thresh_falling_period
1121What:		/sys/.../events/in_accel_y_roc_rising_period
1122What:		/sys/.../events/in_accel_y_roc_falling_period
1123What:		/sys/.../events/in_accel_z_thresh_rising_period
1124What:		/sys/.../events/in_accel_z_thresh_falling_period
1125What:		/sys/.../events/in_accel_z_roc_rising_period
1126What:		/sys/.../events/in_accel_z_roc_falling_period
1127What:		/sys/.../events/in_anglvel_x_thresh_rising_period
1128What:		/sys/.../events/in_anglvel_x_thresh_falling_period
1129What:		/sys/.../events/in_anglvel_x_roc_rising_period
1130What:		/sys/.../events/in_anglvel_x_roc_falling_period
1131What:		/sys/.../events/in_anglvel_y_thresh_rising_period
1132What:		/sys/.../events/in_anglvel_y_thresh_falling_period
1133What:		/sys/.../events/in_anglvel_y_roc_rising_period
1134What:		/sys/.../events/in_anglvel_y_roc_falling_period
1135What:		/sys/.../events/in_anglvel_z_thresh_rising_period
1136What:		/sys/.../events/in_anglvel_z_thresh_falling_period
1137What:		/sys/.../events/in_anglvel_z_roc_rising_period
1138What:		/sys/.../events/in_anglvel_z_roc_falling_period
1139What:		/sys/.../events/in_magn_x_thresh_rising_period
1140What:		/sys/.../events/in_magn_x_thresh_falling_period
1141What:		/sys/.../events/in_magn_x_roc_rising_period
1142What:		/sys/.../events/in_magn_x_roc_falling_period
1143What:		/sys/.../events/in_magn_y_thresh_rising_period
1144What:		/sys/.../events/in_magn_y_thresh_falling_period
1145What:		/sys/.../events/in_magn_y_roc_rising_period
1146What:		/sys/.../events/in_magn_y_roc_falling_period
1147What:		/sys/.../events/in_magn_z_thresh_rising_period
1148What:		/sys/.../events/in_magn_z_thresh_falling_period
1149What:		/sys/.../events/in_magn_z_roc_rising_period
1150What:		/sys/.../events/in_magn_z_roc_falling_period
1151What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
1152What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
1153What:		/sys/.../events/in_rot_from_north_magnetic_roc_rising_period
1154What:		/sys/.../events/in_rot_from_north_magnetic_roc_falling_period
1155What:		/sys/.../events/in_rot_from_north_true_thresh_rising_period
1156What:		/sys/.../events/in_rot_from_north_true_thresh_falling_period
1157What:		/sys/.../events/in_rot_from_north_true_roc_rising_period
1158What:		/sys/.../events/in_rot_from_north_true_roc_falling_period
1159What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
1160What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
1161What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
1162What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
1163What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
1164What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
1165What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
1166What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
1167What:		/sys/.../events/in_voltageY_supply_thresh_rising_period
1168What:		/sys/.../events/in_voltageY_supply_thresh_falling_period
1169What:		/sys/.../events/in_voltageY_supply_roc_rising_period
1170What:		/sys/.../events/in_voltageY_supply_roc_falling_period
1171What:		/sys/.../events/in_voltageY_thresh_rising_period
1172What:		/sys/.../events/in_voltageY_thresh_falling_period
1173What:		/sys/.../events/in_voltageY_roc_rising_period
1174What:		/sys/.../events/in_voltageY_roc_falling_period
1175What:		/sys/.../events/in_tempY_thresh_rising_period
1176What:		/sys/.../events/in_tempY_thresh_falling_period
1177What:		/sys/.../events/in_tempY_roc_rising_period
1178What:		/sys/.../events/in_tempY_roc_falling_period
1179What:		/sys/.../events/in_accel_x&y&z_mag_falling_period
1180What:		/sys/.../events/in_intensity0_thresh_period
1181What:		/sys/.../events/in_proximity0_thresh_period
1182What:		/sys/.../events/in_activity_still_thresh_rising_period
1183What:		/sys/.../events/in_activity_still_thresh_falling_period
1184What:		/sys/.../events/in_activity_walking_thresh_rising_period
1185What:		/sys/.../events/in_activity_walking_thresh_falling_period
1186What:		/sys/.../events/in_activity_jogging_thresh_rising_period
1187What:		/sys/.../events/in_activity_jogging_thresh_falling_period
1188What:		/sys/.../events/in_activity_running_thresh_rising_period
1189What:		/sys/.../events/in_activity_running_thresh_falling_period
1190What:		/sys/.../events/in_illuminance_thresh_either_period
1191KernelVersion:	2.6.37
1192Contact:	linux-iio@vger.kernel.org
1193Description:
1194		Period of time (in seconds) for which the condition must be
1195		met before an event is generated. If direction is not
1196		specified then this period applies to both directions.
1197
1198What:		/sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
1199What:		/sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
1200What:		/sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
1201KernelVersion:	4.2
1202Contact:	linux-iio@vger.kernel.org
1203Description:
1204		If a low pass filter can be applied to the event generation
1205		this property gives its 3db frequency in Hz.
1206		A value of zero disables the filter.
1207
1208What:		/sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
1209What:		/sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
1210What:		/sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
1211KernelVersion:	4.2
1212Contact:	linux-iio@vger.kernel.org
1213Description:
1214		If a high pass filter can be applied to the event generation
1215		this property gives its 3db frequency in Hz.
1216		A value of zero disables the filter.
1217
1218What:		/sys/.../events/in_activity_still_thresh_rising_en
1219What:		/sys/.../events/in_activity_still_thresh_falling_en
1220What:		/sys/.../events/in_activity_walking_thresh_rising_en
1221What:		/sys/.../events/in_activity_walking_thresh_falling_en
1222What:		/sys/.../events/in_activity_jogging_thresh_rising_en
1223What:		/sys/.../events/in_activity_jogging_thresh_falling_en
1224What:		/sys/.../events/in_activity_running_thresh_rising_en
1225What:		/sys/.../events/in_activity_running_thresh_falling_en
1226KernelVersion:	3.19
1227Contact:	linux-iio@vger.kernel.org
1228Description:
1229		Enables or disables activity events. Depending on direction
1230		an event is generated when sensor ENTERS or LEAVES a given state.
1231
1232What:		/sys/.../events/in_activity_still_thresh_rising_value
1233What:		/sys/.../events/in_activity_still_thresh_falling_value
1234What:		/sys/.../events/in_activity_walking_thresh_rising_value
1235What:		/sys/.../events/in_activity_walking_thresh_falling_value
1236What:		/sys/.../events/in_activity_jogging_thresh_rising_value
1237What:		/sys/.../events/in_activity_jogging_thresh_falling_value
1238What:		/sys/.../events/in_activity_running_thresh_rising_value
1239What:		/sys/.../events/in_activity_running_thresh_falling_value
1240KernelVersion:	3.19
1241Contact:	linux-iio@vger.kernel.org
1242Description:
1243		Confidence value (in units as percentage) to be used
1244		for deciding when an event should be generated. E.g for
1245		running: If the confidence value reported by the sensor
1246		is greater than in_activity_running_thresh_rising_value
1247		then the sensor ENTERS running state. Conversely, if the
1248		confidence value reported by the sensor is lower than
1249		in_activity_running_thresh_falling_value then the sensor
1250		is LEAVING running state.
1251
1252What:		/sys/.../iio:deviceX/events/in_accel_mag_en
1253What:		/sys/.../iio:deviceX/events/in_accel_mag_rising_en
1254What:		/sys/.../iio:deviceX/events/in_accel_mag_falling_en
1255What:		/sys/.../iio:deviceX/events/in_accel_x_mag_en
1256What:		/sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1257What:		/sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1258What:		/sys/.../iio:deviceX/events/in_accel_y_mag_en
1259What:		/sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1260What:		/sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1261What:		/sys/.../iio:deviceX/events/in_accel_z_mag_en
1262What:		/sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1263What:		/sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1264What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1265What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1266KernelVersion:	2.6.37
1267Contact:	linux-iio@vger.kernel.org
1268Description:
1269		Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1270		magnitude of the channel is compared to the threshold, not its
1271		signed value.
1272
1273What:		/sys/.../events/in_accel_raw_mag_value
1274What:		/sys/.../events/in_accel_x_raw_mag_rising_value
1275What:		/sys/.../events/in_accel_y_raw_mag_rising_value
1276What:		/sys/.../events/in_accel_z_raw_mag_rising_value
1277KernelVersion:	2.6.37
1278Contact:	linux-iio@vger.kernel.org
1279Description:
1280		The value to which the magnitude of the channel is compared. If
1281		number or direction is not specified, applies to all channels of
1282		this type.
1283
1284What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_en
1285What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en
1286What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en
1287What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en
1288What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en
1289What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en
1290KernelVersion:	5.18
1291Contact:	linux-iio@vger.kernel.org
1292Description:
1293		Similar to in_accel_mag[_y][_rising|_falling]_en, but the event
1294		value is relative to a reference magnitude. The reference magnitude
1295		includes the graviational acceleration.
1296
1297What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_value
1298What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value
1299What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value
1300What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value
1301What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value
1302What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value
1303KernelVersion:	5.18
1304Contact:	linux-iio@vger.kernel.org
1305Description:
1306		The value to which the reference magnitude of the channel is
1307		compared. If the axis is not specified, it applies to all channels
1308		of this type.
1309
1310What:		/sys/.../events/in_steps_change_en
1311KernelVersion:	4.0
1312Contact:	linux-iio@vger.kernel.org
1313Description:
1314		Event generated when channel passes a threshold on the absolute
1315		change in value. E.g. for steps: a step change event is
1316		generated each time the user takes N steps, where N is set using
1317		in_steps_change_value.
1318
1319What:		/sys/.../events/in_steps_change_value
1320KernelVersion:	4.0
1321Contact:	linux-iio@vger.kernel.org
1322Description:
1323		Specifies the value of change threshold that the
1324		device is comparing against for the events enabled by
1325		<type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1326		if set to 3, a step change event will be generated every 3
1327		steps.
1328
1329What:		/sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1330KernelVersion:	2.6.35
1331Contact:	linux-iio@vger.kernel.org
1332Description:
1333		The name of the trigger source being used, as per string given
1334		in /sys/class/iio/triggerY/name.
1335
1336What:		/sys/bus/iio/devices/iio:deviceX/bufferY/length
1337KernelVersion:	5.11
1338Contact:	linux-iio@vger.kernel.org
1339Description:
1340		Number of scans contained by the buffer.
1341
1342What:		/sys/bus/iio/devices/iio:deviceX/bufferY/enable
1343KernelVersion:	5.11
1344Contact:	linux-iio@vger.kernel.org
1345Description:
1346		Actually start the buffer capture up.  Will start trigger
1347		if first device and appropriate.
1348
1349		Note that it might be impossible to configure other attributes,
1350		(e.g.: events, scale, sampling rate) if they impact the currently
1351		active buffer capture session.
1352
1353What:		/sys/bus/iio/devices/iio:deviceX/bufferY
1354KernelVersion:	5.11
1355Contact:	linux-iio@vger.kernel.org
1356Description:
1357		Directory containing interfaces for elements that will be
1358		captured for a single triggered sample set in the buffer.
1359
1360		Since kernel 5.11 the scan_elements attributes are merged into
1361		the bufferY directory, to be configurable per buffer.
1362
1363What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
1364What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
1365What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
1366What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_en
1367What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_en
1368What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_en
1369What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en
1370What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en
1371What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en
1372What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
1373What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
1374What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
1375What:		/sys/.../iio:deviceX/bufferY/in_magn_x_en
1376What:		/sys/.../iio:deviceX/bufferY/in_magn_y_en
1377What:		/sys/.../iio:deviceX/bufferY/in_magn_z_en
1378What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
1379What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
1380What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
1381What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
1382What:		/sys/.../iio:deviceX/bufferY/in_timestamp_en
1383What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
1384What:		/sys/.../iio:deviceX/bufferY/in_voltageY_en
1385What:		/sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
1386What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_en
1387What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_en
1388What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_en
1389What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_en
1390What:		/sys/.../iio:deviceX/bufferY/in_incli_x_en
1391What:		/sys/.../iio:deviceX/bufferY/in_incli_y_en
1392What:		/sys/.../iio:deviceX/bufferY/in_pressureY_en
1393What:		/sys/.../iio:deviceX/bufferY/in_pressure_en
1394What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
1395What:		/sys/.../iio:deviceX/bufferY/in_proximity_en
1396KernelVersion:	5.11
1397Contact:	linux-iio@vger.kernel.org
1398Description:
1399		Scan element control for triggered data capture.
1400
1401What:		/sys/.../iio:deviceX/bufferY/in_accel_type
1402What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_type
1403What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_type
1404What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
1405What:		/sys/.../iio:deviceX/bufferY/in_magn_type
1406What:		/sys/.../iio:deviceX/bufferY/in_incli_type
1407What:		/sys/.../iio:deviceX/bufferY/in_voltageY_type
1408What:		/sys/.../iio:deviceX/bufferY/in_voltage_type
1409What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
1410What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_type
1411What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_type
1412What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_type
1413What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_type
1414What:		/sys/.../iio:deviceX/bufferY/in_timestamp_type
1415What:		/sys/.../iio:deviceX/bufferY/in_pressureY_type
1416What:		/sys/.../iio:deviceX/bufferY/in_pressure_type
1417What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
1418What:		/sys/.../iio:deviceX/bufferY/in_proximity_type
1419KernelVersion:	5.11
1420Contact:	linux-iio@vger.kernel.org
1421Description:
1422		Description of the scan element data storage within the buffer
1423		and hence the form in which it is read from user-space.
1424		Form is [be|le]:[s|u]bits/storagebits[>>shift].
1425		be or le specifies big or little endian. s or u specifies if
1426		signed (2's complement) or unsigned. bits is the number of bits
1427		of data and storagebits is the space (after padding) that it
1428		occupies in the buffer. shift if specified, is the shift that
1429		needs to be applied prior to masking out unused bits. Some
1430		devices put their data in the middle of the transferred elements
1431		with additional information on both sides.  Note that some
1432		devices will have additional information in the unused bits
1433		so to get a clean value, the bits value must be used to mask
1434		the buffer output value appropriately.  The storagebits value
1435		also specifies the data alignment.  So s48/64>>2 will be a
1436		signed 48 bit integer stored in a 64 bit location aligned to
1437		a 64 bit boundary. To obtain the clean value, shift right 2
1438		and apply a mask to zero the top 16 bits of the result.
1439		For other storage combinations this attribute will be extended
1440		appropriately.
1441
1442What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
1443KernelVersion:	2.6.37
1444Contact:	linux-iio@vger.kernel.org
1445Description:
1446		If the type parameter can take one of a small set of values,
1447		this attribute lists them.
1448
1449What:		/sys/.../iio:deviceX/bufferY/in_voltageY_index
1450What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
1451What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_index
1452What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_index
1453What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_index
1454What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_index
1455What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
1456What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
1457What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
1458What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_x_index
1459What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_y_index
1460What:		/sys/.../iio:deviceX/bufferY/in_deltaangl_z_index
1461What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index
1462What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index
1463What:		/sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index
1464What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
1465What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
1466What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
1467What:		/sys/.../iio:deviceX/bufferY/in_magn_x_index
1468What:		/sys/.../iio:deviceX/bufferY/in_magn_y_index
1469What:		/sys/.../iio:deviceX/bufferY/in_magn_z_index
1470What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
1471What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
1472What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
1473What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
1474What:		/sys/.../iio:deviceX/bufferY/in_incli_x_index
1475What:		/sys/.../iio:deviceX/bufferY/in_incli_y_index
1476What:		/sys/.../iio:deviceX/bufferY/in_timestamp_index
1477What:		/sys/.../iio:deviceX/bufferY/in_pressureY_index
1478What:		/sys/.../iio:deviceX/bufferY/in_pressure_index
1479What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
1480What:		/sys/.../iio:deviceX/bufferY/in_proximity_index
1481KernelVersion:	5.11
1482Contact:	linux-iio@vger.kernel.org
1483Description:
1484		A single positive integer specifying the position of this
1485		scan element in the buffer. Note these are not dependent on
1486		what is enabled and may not be contiguous. Thus for user-space
1487		to establish the full layout these must be used in conjunction
1488		with all _en attributes to establish which channels are present,
1489		and the relevant _type attributes to establish the data storage
1490		format.
1491
1492What:		/sys/.../iio:deviceX/in_activity_still_input
1493What:		/sys/.../iio:deviceX/in_activity_walking_input
1494What:		/sys/.../iio:deviceX/in_activity_jogging_input
1495What:		/sys/.../iio:deviceX/in_activity_running_input
1496KernelVersion:	3.19
1497Contact:	linux-iio@vger.kernel.org
1498Description:
1499		This attribute is used to read the confidence for an activity
1500		expressed in units as percentage.
1501
1502What:		/sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1503KernelVersion:	2.6.38
1504Contact:	linux-iio@vger.kernel.org
1505Description:
1506		This attribute is used to read the amount of quadrature error
1507		present in the device at a given time.
1508
1509What:		/sys/.../iio:deviceX/in_accelX_power_mode
1510KernelVersion:	3.11
1511Contact:	linux-iio@vger.kernel.org
1512Description:
1513		Specifies the chip power mode.
1514		low_noise: reduce noise level from ADC,
1515		low_power: enable low current consumption.
1516		For a list of available output power modes read
1517		in_accel_power_mode_available.
1518
1519What:		/sys/.../iio:deviceX/in_energy_input
1520What:		/sys/.../iio:deviceX/in_energy_raw
1521KernelVersion:	4.0
1522Contact:	linux-iio@vger.kernel.org
1523Description:
1524		This attribute is used to read the energy value reported by the
1525		device (e.g.: human activity sensors report energy burnt by the
1526		user). Units after application of scale are Joules.
1527
1528What:		/sys/.../iio:deviceX/in_distance_input
1529What:		/sys/.../iio:deviceX/in_distance_raw
1530KernelVersion:	4.0
1531Contact:	linux-iio@vger.kernel.org
1532Description:
1533		This attribute is used to read the measured distance to an object
1534		or the distance covered by the user since the last reboot while
1535		activated. Units after application of scale are meters.
1536
1537What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
1538KernelVersion:	3.4.0
1539Contact:	linux-iio@vger.kernel.org
1540Description:
1541		Writing '1' stores the current device configuration into
1542		on-chip EEPROM. After power-up or chip reset the device will
1543		automatically load the saved configuration.
1544
1545What:		/sys/.../iio:deviceX/in_proximity_raw
1546What:		/sys/.../iio:deviceX/in_proximity_input
1547What:		/sys/.../iio:deviceX/in_proximityY_raw
1548KernelVersion:	3.4
1549Contact:	linux-iio@vger.kernel.org
1550Description:
1551		Proximity measurement indicating that some
1552		object is near the sensor, usually by observing
1553		reflectivity of infrared or ultrasound emitted.
1554
1555		Often these sensors are unit less and as such conversion
1556		to SI units is not possible. Higher proximity measurements
1557		indicate closer objects, and vice versa. Units after
1558		application of scale and offset are meters.
1559
1560What:		/sys/.../iio:deviceX/in_illuminance_input
1561What:		/sys/.../iio:deviceX/in_illuminance_raw
1562What:		/sys/.../iio:deviceX/in_illuminanceY_input
1563What:		/sys/.../iio:deviceX/in_illuminanceY_raw
1564What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
1565What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
1566What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
1567KernelVersion:	3.4
1568Contact:	linux-iio@vger.kernel.org
1569Description:
1570		Illuminance measurement, units after application of scale
1571		and offset are lux.
1572
1573What:		/sys/.../iio:deviceX/in_intensityY_raw
1574What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
1575What:		/sys/.../iio:deviceX/in_intensityY_both_raw
1576What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
1577What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
1578KernelVersion:	3.4
1579Contact:	linux-iio@vger.kernel.org
1580Description:
1581		Unit-less light intensity. Modifiers both and ir indicate
1582		that measurements contain visible and infrared light
1583		components or just infrared light, respectively. Modifier
1584		uv indicates that measurements contain ultraviolet light
1585		components. Modifier duv indicates that measurements
1586		contain deep ultraviolet light components.
1587
1588What:		/sys/.../iio:deviceX/in_uvindex_input
1589KernelVersion:	4.6
1590Contact:	linux-iio@vger.kernel.org
1591Description:
1592		UV light intensity index measuring the human skin's response to
1593		different wavelength of sunlight weighted according to the
1594		standardised CIE Erythemal Action Spectrum. UV index values range
1595		from 0 (low) to >=11 (extreme).
1596
1597What:		/sys/.../iio:deviceX/in_intensity_integration_time
1598What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
1599What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
1600What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
1601What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
1602What:		/sys/.../iio:deviceX/in_illuminance_integration_time
1603KernelVersion:	3.12
1604Contact:	linux-iio@vger.kernel.org
1605Description:
1606		This attribute is used to get/set the integration time in
1607		seconds. If shared across all channels of a given type,
1608		<type>_integration_time is used.
1609
1610What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1611KernelVersion:	4.0
1612Contact:	linux-iio@vger.kernel.org
1613Description:
1614		Number of seconds in which to compute speed.
1615
1616What:		/sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1617KernelVersion:	3.15
1618Contact:	linux-iio@vger.kernel.org
1619Description:
1620		Raw value of quaternion components using a format
1621		x y z w. Here x, y, and z component represents the axis about
1622		which a rotation will occur and w component represents the
1623		amount of rotation.
1624
1625What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1626What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1627What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1628What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1629KernelVersion:	3.15
1630Contact:	linux-iio@vger.kernel.org
1631Description:
1632		Raw value of rotation from true/magnetic north measured with
1633		or without compensation from tilt sensors.
1634
1635What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1636What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1637What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1638KernelVersion:	3.18
1639Contact:	linux-iio@vger.kernel.org
1640Description:
1641		Raw current measurement from channel X. Units are in milliamps
1642		after application of scale and offset. If no offset or scale is
1643		present, output should be considered as processed with the
1644		unit in milliamps.
1645
1646		Channels with 'i' and 'q' modifiers always exist in pairs and both
1647		channels refer to the same signal. The 'i' channel contains the in-phase
1648		component of the signal while the 'q' channel contains the quadrature
1649		component.
1650
1651What:		/sys/.../iio:deviceX/in_energy_en
1652What:		/sys/.../iio:deviceX/in_distance_en
1653What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1654What:		/sys/.../iio:deviceX/in_steps_en
1655KernelVersion:	3.19
1656Contact:	linux-iio@vger.kernel.org
1657Description:
1658		Activates a device feature that runs in firmware/hardware.
1659		E.g. for steps: the pedometer saves power while not used;
1660		when activated, it will count the steps taken by the user in
1661		firmware and export them through in_steps_input.
1662
1663What:		/sys/.../iio:deviceX/in_steps_input
1664KernelVersion:	3.19
1665Contact:	linux-iio@vger.kernel.org
1666Description:
1667		This attribute is used to read the number of steps taken by the user
1668		since the last reboot while activated.
1669
1670What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1671What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1672KernelVersion:	3.19
1673Contact:	linux-iio@vger.kernel.org
1674Description:
1675		This attribute is used to read the current speed value of the
1676		user (which is the norm or magnitude of the velocity vector).
1677		Units after application of scale are m/s.
1678
1679What:		/sys/.../iio:deviceX/in_steps_debounce_count
1680KernelVersion:	4.0
1681Contact:	linux-iio@vger.kernel.org
1682Description:
1683		Specifies the number of steps that must occur within
1684		in_steps_filter_debounce_time for the pedometer to decide the
1685		consumer is making steps.
1686
1687What:		/sys/.../iio:deviceX/in_steps_debounce_time
1688KernelVersion:	4.0
1689Contact:	linux-iio@vger.kernel.org
1690Description:
1691		Specifies number of seconds in which we compute the steps
1692		that occur in order to decide if the consumer is making steps.
1693
1694What:		/sys/bus/iio/devices/iio:deviceX/bufferY/watermark
1695KernelVersion:	5.11
1696Contact:	linux-iio@vger.kernel.org
1697Description:
1698		A single positive integer specifying the maximum number of scan
1699		elements to wait for.
1700
1701		Poll will block until the watermark is reached.
1702
1703		Blocking read will wait until the minimum between the requested
1704		read amount or the low water mark is available.
1705
1706		Non-blocking read will retrieve the available samples from the
1707		buffer even if there are less samples then watermark level. This
1708		allows the application to block on poll with a timeout and read
1709		the available samples after the timeout expires and thus have a
1710		maximum delay guarantee.
1711
1712What:		/sys/bus/iio/devices/iio:deviceX/bufferY/data_available
1713KernelVersion:	5.11
1714Contact:	linux-iio@vger.kernel.org
1715Description:
1716		A read-only value indicating the bytes of data available in the
1717		buffer. In the case of an output buffer, this indicates the
1718		amount of empty space available to write data to. In the case of
1719		an input buffer, this indicates the amount of data available for
1720		reading.
1721
1722What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1723KernelVersion: 4.2
1724Contact:	linux-iio@vger.kernel.org
1725Description:
1726		A read-only boolean value that indicates if the hardware fifo is
1727		currently enabled or disabled. If the device does not have a
1728		hardware fifo this entry is not present.
1729		The hardware fifo is enabled when the buffer is enabled if the
1730		current hardware fifo watermark level is set and other current
1731		device settings allows it (e.g. if a trigger is set that samples
1732		data differently that the hardware fifo does then hardware fifo
1733		will not enabled).
1734
1735		If the hardware fifo is enabled and the level of the hardware
1736		fifo reaches the hardware fifo watermark level the device will
1737		flush its hardware fifo to the device buffer. Doing a non
1738		blocking read on the device when no samples are present in the
1739		device buffer will also force a flush.
1740
1741		When the hardware fifo is enabled there is no need to use a
1742		trigger to use buffer mode since the watermark settings
1743		guarantees that the hardware fifo is flushed to the device
1744		buffer.
1745
1746What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1747KernelVersion:	4.12
1748Contact:	linux-iio@vger.kernel.org
1749Description:
1750		A read/write property to provide capability to delay reporting of
1751		samples till a timeout is reached. This allows host processors to
1752		sleep, while the sensor is storing samples in its internal fifo.
1753		The maximum timeout in seconds can be specified by setting
1754		hwfifo_timeout.The current delay can be read by reading
1755		hwfifo_timeout. A value of 0 means that there is no timeout.
1756
1757What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1758KernelVersion: 4.2
1759Contact:	linux-iio@vger.kernel.org
1760Description:
1761		Read-only entry that contains a single integer specifying the
1762		current watermark level for the hardware fifo. If the device
1763		does not have a hardware fifo this entry is not present.
1764		The watermark level for the hardware fifo is set by the driver
1765		based on the value set by the user in buffer/watermark but
1766		taking into account hardware limitations (e.g. most hardware
1767		buffers are limited to 32-64 samples, some hardware buffers
1768		watermarks are fixed or have minimum levels).  A value of 0
1769		means that the hardware watermark is unset.
1770
1771What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1772KernelVersion: 4.2
1773Contact:       linux-iio@vger.kernel.org
1774Description:
1775		A single positive integer specifying the minimum watermark level
1776		for the hardware fifo of this device. If the device does not
1777		have a hardware fifo this entry is not present.
1778
1779		If the user sets buffer/watermark to a value less than this one,
1780		then the hardware watermark will remain unset.
1781
1782What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1783KernelVersion: 4.2
1784Contact:       linux-iio@vger.kernel.org
1785Description:
1786		A single positive integer specifying the maximum watermark level
1787		for the hardware fifo of this device. If the device does not
1788		have a hardware fifo this entry is not present.
1789
1790		If the user sets buffer/watermark to a value greater than this
1791		one, then the hardware watermark will be capped at this value.
1792
1793What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1794KernelVersion: 4.2
1795Contact:       linux-iio@vger.kernel.org
1796Description:
1797		A list of positive integers specifying the available watermark
1798		levels for the hardware fifo. This entry is optional and if it
1799		is not present it means that all the values between
1800		hwfifo_watermark_min and hwfifo_watermark_max are supported.
1801
1802		If the user sets buffer/watermark to a value greater than
1803		hwfifo_watermak_min but not equal to any of the values in this
1804		list, the driver will chose an appropriate value for the
1805		hardware fifo watermark level.
1806
1807What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1808What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1809What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1810What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1811KernelVersion:	4.1
1812Contact:	linux-iio@vger.kernel.org
1813Description:
1814		The emissivity ratio of the surface in the field of view of the
1815		contactless temperature sensor.  Emissivity varies from 0 to 1,
1816		with 1 being the emissivity of a black body.
1817
1818What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1819What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1820What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1821KernelVersion:	4.2
1822Contact:	linux-iio@vger.kernel.org
1823Description:
1824		Hardware applied number of measurements for acquiring one
1825		data point. The HW will do <type>[_name]_oversampling_ratio
1826		measurements and return the average value as output data. Each
1827		value resulted from <type>[_name]_oversampling_ratio measurements
1828		is considered as one sample for <type>[_name]_sampling_frequency.
1829
1830What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1831What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1832What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1833What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1834What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1835What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1836What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1837What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1838What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
1839What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
1840What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1841What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1842KernelVersion:	4.3
1843Contact:	linux-iio@vger.kernel.org
1844Description:
1845		Raw (unscaled no offset etc.) reading of a substance. Units
1846		after application of scale and offset are percents.
1847
1848What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1849What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1850What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1851What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1852KernelVersion:	4.3
1853Contact:	linux-iio@vger.kernel.org
1854Description:
1855		Raw (unscaled no offset etc.) resistance reading.
1856		Units after application of scale and offset are ohms.
1857
1858What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
1859KernelVersion:	4.1.0
1860Contact:	linux-iio@vger.kernel.org
1861Description:
1862		'1' (enable) or '0' (disable) specifying the enable
1863		of heater function. Same reading values apply.
1864
1865		This ABI is especially applicable for humidity sensors
1866		to heatup the device and get rid of any condensation
1867		in some humidity environment
1868
1869What:		/sys/bus/iio/devices/iio:deviceX/in_ph_raw
1870KernelVersion:	4.5
1871Contact:	linux-iio@vger.kernel.org
1872Description:
1873		Raw (unscaled no offset etc.) pH reading of a substance as a negative
1874		base-10 logarithm of hydrodium ions in a litre of water.
1875
1876What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
1877What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1878What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1879What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1880What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1881KernelVersion:  4.6
1882Contact:        linux-iio@vger.kernel.org
1883Description:
1884		Mounting matrix for IIO sensors. This is a rotation matrix which
1885		informs userspace about sensor chip's placement relative to the
1886		main hardware it is mounted on.
1887
1888		Main hardware placement is defined according to the local
1889		reference frame related to the physical quantity the sensor
1890		measures.
1891
1892		Given that the rotation matrix is defined in a board specific
1893		way (platform data and / or device-tree), the main hardware
1894		reference frame definition is left to the implementor's choice
1895		(see below for a magnetometer example).
1896
1897		Applications should apply this rotation matrix to samples so
1898		that when main hardware reference frame is aligned onto local
1899		reference frame, then sensor chip reference frame is also
1900		perfectly aligned with it.
1901
1902		Matrix is a 3x3 unitary matrix and typically looks like
1903		[0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1904		[1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1905		are perfectly aligned with each other.
1906
1907		For example, a mounting matrix for a magnetometer sensor informs
1908		userspace about sensor chip's ORIENTATION relative to the main
1909		hardware.
1910
1911		More specifically, main hardware orientation is defined with
1912		respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1913
1914		* Y is in the ground plane and positive towards magnetic North ;
1915		* X is in the ground plane, perpendicular to the North axis and
1916		  positive towards the East ;
1917		* Z is perpendicular to the ground plane and positive upwards.
1918
1919		An implementor might consider that for a hand-held device, a
1920		'natural' orientation would be 'front facing camera at the top'.
1921		The main hardware reference frame could then be described as :
1922
1923		* Y is in the plane of the screen and is positive towards the
1924		  top of the screen ;
1925		* X is in the plane of the screen, perpendicular to Y axis, and
1926		  positive towards the right hand side of the screen ;
1927		* Z is perpendicular to the screen plane and positive out of the
1928		  screen.
1929
1930		Another example for a quadrotor UAV might be :
1931
1932		* Y is in the plane of the propellers and positive towards the
1933		  front-view camera;
1934		* X is in the plane of the propellers, perpendicular to Y axis,
1935		  and positive towards the starboard side of the UAV ;
1936		* Z is perpendicular to propellers plane and positive upwards.
1937
1938What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1939KernelVersion:	4.8
1940Contact:	linux-iio@vger.kernel.org
1941Description:
1942		Raw (unscaled no offset etc.) electric conductivity reading.
1943		Units after application of scale and offset are siemens per
1944		meter.
1945
1946What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
1947KernelVersion:	4.10
1948Contact:	linux-iio@vger.kernel.org
1949Description:
1950		This interface is deprecated; please use the Counter subsystem.
1951
1952		Raw counter device counts from channel Y. For quadrature
1953		counters, multiplication by an available [Y]_scale results in
1954		the counts of a single quadrature signal phase from channel Y.
1955
1956What:		/sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1957KernelVersion:	4.10
1958Contact:	linux-iio@vger.kernel.org
1959Description:
1960		This interface is deprecated; please use the Counter subsystem.
1961
1962		Raw counter device index value from channel Y. This attribute
1963		provides an absolute positional reference (e.g. a pulse once per
1964		revolution) which may be used to home positional systems as
1965		required.
1966
1967What:		/sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1968KernelVersion:	4.12
1969Contact:	linux-iio@vger.kernel.org
1970Description:
1971		This interface is deprecated; please use the Counter subsystem.
1972
1973		A list of possible counting directions which are:
1974
1975		- "up"	: counter device is increasing.
1976		- "down": counter device is decreasing.
1977
1978What:		/sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1979KernelVersion:	4.12
1980Contact:	linux-iio@vger.kernel.org
1981Description:
1982		This interface is deprecated; please use the Counter subsystem.
1983
1984		Raw counter device counters direction for channel Y.
1985
1986What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_label
1987What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_label
1988KernelVersion:	5.8
1989Contact:	linux-iio@vger.kernel.org
1990Description:
1991		Optional symbolic label to a device channel.
1992		If a label is defined for this channel add that to the channel
1993		specific attributes. This is useful for userspace to be able to
1994		better identify an individual channel.
1995
1996What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1997KernelVersion:	4.18
1998Contact:	linux-iio@vger.kernel.org
1999Description:
2000		Raw (unscaled) phase difference reading from channel Y.
2001		Units after application of scale and offset are radians.
2002
2003What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
2004What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
2005What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
2006What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
2007What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
2008What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
2009What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
2010What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
2011KernelVersion:	4.22
2012Contact:	linux-iio@vger.kernel.org
2013Description:
2014		Mass concentration reading of particulate matter in ug / m3.
2015		pmX consists of particles with aerodynamic diameter less or
2016		equal to X micrometers.
2017
2018What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
2019Date:		November 2019
2020KernelVersion:	5.4
2021Contact:	linux-iio@vger.kernel.org
2022Description:
2023		List of valid periods (in seconds) for which the light intensity
2024		must be above the threshold level before interrupt is asserted.
2025
2026What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
2027KernelVersion:	5.5
2028Contact:	linux-iio@vger.kernel.org
2029Description:
2030		Center frequency in Hz for a notch filter. Used i.e. for line
2031		noise suppression.
2032
2033What:		/sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
2034KernelVersion:	5.5
2035Contact:	linux-iio@vger.kernel.org
2036Description:
2037		One of the following thermocouple types: B, E, J, K, N, R, S, T.
2038
2039What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
2040What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
2041KernelVersion:	5.10
2042Contact:	linux-iio@vger.kernel.org
2043Description:
2044		Calibrated ambient temperature for object temperature
2045		calculation in milli degrees Celsius.
2046
2047What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
2048What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
2049What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
2050KernelVersion:	5.10
2051Contact:	linux-iio@vger.kernel.org
2052Description:
2053		Unscaled light intensity according to CIE 1931/DIN 5033 color space.
2054		Units after application of scale are nano nanowatts per square meter.
2055
2056What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_label
2057KernelVersion:	5.12
2058Contact:	linux-iio@vger.kernel.org
2059Description:
2060		Optional symbolic label for channel Y.
2061		For Intel hid hinge sensor, the label values are:
2062		hinge, keyboard, screen. It means the three channels
2063		each correspond respectively to hinge angle, keyboard angle,
2064		and screen angle.
2065
2066What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative
2067What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative
2068KernelVersion:	5.12
2069Contact:	linux-iio@vger.kernel.org
2070Description:
2071		Specify the percent for light sensor relative to the channel
2072		absolute value that a data field should change before an event
2073		is generated. Units are a percentage of the prior reading.
2074
2075What:		/sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
2076Date:		June 2020
2077KernelVersion:	5.8
2078Contact:	linux-iio@vger.kernel.org
2079Description:
2080		Some sensors have the ability to apply auto calibration at
2081		runtime. For example, it may be necessary to compensate for
2082		contaminant build-up in a measurement chamber or optical
2083		element deterioration that would otherwise lead to sensor drift.
2084
2085		Writing 1 or 0 to this attribute will respectively activate or
2086		deactivate this auto calibration function.
2087
2088		Upon reading, the current status is returned.
2089
2090What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value
2091Date:		June 2020
2092KernelVersion:	5.8
2093Contact:	linux-iio@vger.kernel.org
2094Description:
2095		Some sensors have the ability to apply a manual calibration using
2096		a known measurement value, perhaps obtained from an external
2097		reference device.
2098
2099		Writing a value to this function will force such a calibration
2100		change. For the scd30 the value should be from the range
2101		[400 1 2000].
2102
2103		Note for the scd30 that a valid value may only be obtained once
2104		it is has been written. Until then any read back of this value
2105		should be ignored. As for the scd4x an error will be returned
2106		immediately if the manual calibration has failed.
2107
2108What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available
2109KernelVersion:  5.15
2110Contact:        linux-iio@vger.kernel.org
2111Description:
2112		Available range for the forced calibration value, expressed as:
2113
2114		- a range specified as "[min step max]"
2115
2116What:		/sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency
2117What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency
2118What:		/sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency
2119KernelVersion:	5.20
2120Contact:	linux-iio@vger.kernel.org
2121Description:
2122		Some devices have separate controls of sampling frequency for
2123		individual channels. If multiple channels are enabled in a scan,
2124		then the sampling_frequency of the scan may be computed from the
2125		per channel sampling frequencies.
2126
2127What:		/sys/.../events/in_accel_gesture_singletap_en
2128What:		/sys/.../events/in_accel_gesture_doubletap_en
2129KernelVersion:	6.1
2130Contact:	linux-iio@vger.kernel.org
2131Description:
2132		Device generates an event on a single or double tap.
2133
2134What:		/sys/.../events/in_accel_gesture_singletap_value
2135What:		/sys/.../events/in_accel_gesture_doubletap_value
2136KernelVersion:	6.1
2137Contact:	linux-iio@vger.kernel.org
2138Description:
2139		Specifies the threshold value that the device is comparing
2140		against to generate the tap gesture event. The lower
2141		threshold value increases the sensitivity of tap detection.
2142		Units and the exact meaning of value are device-specific.
2143
2144What:		/sys/.../events/in_accel_gesture_tap_value_available
2145KernelVersion:	6.1
2146Contact:	linux-iio@vger.kernel.org
2147Description:
2148		Lists all available threshold values which can be used to
2149		modify the sensitivity of the tap detection.
2150
2151What:		/sys/.../events/in_accel_gesture_singletap_reset_timeout
2152What:		/sys/.../events/in_accel_gesture_doubletap_reset_timeout
2153KernelVersion:	6.1
2154Contact:	linux-iio@vger.kernel.org
2155Description:
2156		Specifies the timeout value in seconds for the tap detector
2157		to not to look for another tap event after the event as
2158		occurred. Basically the minimum quiet time between the two
2159		single-tap's or two double-tap's.
2160
2161What:		/sys/.../events/in_accel_gesture_tap_reset_timeout_available
2162KernelVersion:	6.1
2163Contact:	linux-iio@vger.kernel.org
2164Description:
2165		Lists all available tap reset timeout values. Units in seconds.
2166
2167What:		/sys/.../events/in_accel_gesture_doubletap_tap2_min_delay
2168KernelVersion:	6.1
2169Contact:	linux-iio@vger.kernel.org
2170Description:
2171		Specifies the minimum quiet time in seconds between the two
2172		taps of a double tap.
2173
2174What:		/sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available
2175KernelVersion:	6.1
2176Contact:	linux-iio@vger.kernel.org
2177Description:
2178		Lists all available delay values between two taps in the double
2179		tap. Units in seconds.
2180
2181What:		/sys/.../events/in_accel_gesture_tap_maxtomin_time
2182KernelVersion:	6.1
2183Contact:	linux-iio@vger.kernel.org
2184Description:
2185		Specifies the maximum time difference allowed between upper
2186		and lower peak of tap to consider it as the valid tap event.
2187		Units in seconds.
2188
2189What:		/sys/.../events/in_accel_gesture_tap_maxtomin_time_available
2190KernelVersion:	6.1
2191Contact:	linux-iio@vger.kernel.org
2192Description:
2193		Lists all available time values between upper peak to lower
2194		peak. Units in seconds.
2195
2196What:		/sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw
2197What:		/sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw
2198What:		/sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw
2199KernelVersion:	6.1
2200Contact:	linux-iio@vger.kernel.org
2201Description:
2202		Raw (unscaled) euler angles readings. Units after
2203		application of scale are deg.
2204
2205What:		/sys/bus/iio/devices/iio:deviceX/serialnumber
2206KernelVersion:	6.1
2207Contact:	linux-iio@vger.kernel.org
2208Description:
2209		An example format is 16-bytes, 2-digits-per-byte, HEX-string
2210		representing the sensor unique ID number.
2211
2212What:		/sys/.../events/in_proximity_thresh_either_runningperiod
2213KernelVersion:	6.6
2214Contact:	linux-iio@vger.kernel.org
2215Description:
2216		A running period of time (in seconds) for which
2217		in_proximity_thresh_either_runningcount amount of conditions
2218		must occur before an event is generated. If direction is not
2219		specified then this period applies to both directions.
2220
2221What:		/sys/.../events/in_proximity_thresh_either_runningcount
2222KernelVersion:	6.6
2223Contact:	linux-iio@vger.kernel.org
2224Description:
2225		Number of conditions that must occur, during a running
2226		period, before an event is generated.
2227
2228What:		/sys/bus/iio/devices/iio:deviceX/in_colortemp_raw
2229KernelVersion:	6.7
2230Contact:	linux-iio@vger.kernel.org
2231Description:
2232		Represents light color temperature, which measures light color
2233		temperature in Kelvin.
2234
2235What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
2236What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
2237KernelVersion:	6.7
2238Contact:	linux-iio@vger.kernel.org
2239Description:
2240		The x and y light color coordinate on the CIE 1931 chromaticity
2241		diagram.
2242
2243What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_either_label
2244What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_mag_rising_label
2245What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_falling_label
2246What:		/sys/bus/iio/devices/iio:deviceX/events/in_altvoltageY_thresh_rising_label
2247What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglvelY_mag_rising_label
2248What:		/sys/bus/iio/devices/iio:deviceX/events/in_anglY_thresh_rising_label
2249What:		/sys/bus/iio/devices/iio:deviceX/events/in_phaseY_mag_rising_label
2250KernelVersion:	6.7
2251Contact:	linux-iio@vger.kernel.org
2252Description:
2253		Optional symbolic label to a device channel event.
2254		If a label is defined for this event add that to the event
2255		specific attributes. This is useful for userspace to be able to
2256		better identify an individual event.
2257