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		Contains trigger type specific elements. These do not
19		generalize well and hence are not documented in this file.
20		X is the IIO index of the trigger.
21
22What:		/sys/bus/iio/devices/iio:deviceX/buffer
23KernelVersion:	2.6.35
24Contact:	linux-iio@vger.kernel.org
25Description:
26		Directory of attributes relating to the buffer for the device.
27
28What:		/sys/bus/iio/devices/iio:deviceX/name
29KernelVersion:	2.6.35
30Contact:	linux-iio@vger.kernel.org
31Description:
32		Description of the physical chip / device for device X.
33		Typically a part number.
34
35What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
36KernelVersion:	4.5
37Contact:	linux-iio@vger.kernel.org
38Description:
39		String identifying current posix clock used to timestamp
40		buffered samples and events for device X.
41
42What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency
43What:		/sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
44What:		/sys/bus/iio/devices/triggerX/sampling_frequency
45KernelVersion:	2.6.35
46Contact:	linux-iio@vger.kernel.org
47Description:
48		Some devices have internal clocks.  This parameter sets the
49		resulting sampling frequency.  In many devices this
50		parameter has an effect on input filters etc. rather than
51		simply controlling when the input is sampled.  As this
52		effects data ready triggers, hardware buffers and the sysfs
53		direct access interfaces, it may be found in any of the
54		relevant directories.  If it effects all of the above
55		then it is to be found in the base device directory.
56
57What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
58What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
59What:		/sys/.../iio:deviceX/buffer/sampling_frequency_available
60What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
61KernelVersion:	2.6.35
62Contact:	linux-iio@vger.kernel.org
63Description:
64		When the internal sampling clock can only take a specific set of
65		frequencies, we can specify the available values with:
66		- a small discrete set of values like "0 2 4 6 8"
67		- a range with minimum, step and maximum frequencies like
68		  "[min step max]"
69
70What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio
71KernelVersion:	2.6.38
72Contact:	linux-iio@vger.kernel.org
73Description:
74		Hardware dependent ADC oversampling. Controls the sampling ratio
75		of the digital filter if available.
76
77What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
78KernelVersion:	2.6.38
79Contact:	linux-iio@vger.kernel.org
80Description:
81		Hardware dependent values supported by the oversampling filter.
82
83What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
84What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
85What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
86What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
87KernelVersion:	2.6.35
88Contact:	linux-iio@vger.kernel.org
89Description:
90		Raw (unscaled no bias removal etc.) voltage measurement from
91		channel Y. In special cases where the channel does not
92		correspond to externally available input one of the named
93		versions may be used. The number must always be specified and
94		unique to allow association with event codes. Units after
95		application of scale and offset are millivolts.
96
97		Channels with 'i' and 'q' modifiers always exist in pairs and both
98		channels refer to the same signal. The 'i' channel contains the in-phase
99		component of the signal while the 'q' channel contains the quadrature
100		component.
101
102What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
103KernelVersion:	2.6.35
104Contact:	linux-iio@vger.kernel.org
105Description:
106		Raw (unscaled) differential voltage measurement equivalent to
107		channel Y - channel Z where these channel numbers apply to the
108		physically equivalent inputs when non differential readings are
109		separately available. In differential only parts, then all that
110		is required is a consistent labeling.  Units after application
111		of scale and offset are millivolts.
112
113What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_raw
114What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
115KernelVersion:	3.17
116Contact:	linux-iio@vger.kernel.org
117Description:
118		Raw (unscaled no bias removal etc.) current measurement from
119		channel Y. In special cases where the channel does not
120		correspond to externally available input one of the named
121		versions may be used. The number must always be specified and
122		unique to allow association with event codes. Units after
123		application of scale and offset are milliamps.
124
125What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_raw
126KernelVersion:	4.5
127Contact:	linux-iio@vger.kernel.org
128Description:
129		Raw (unscaled no bias removal etc.) power measurement from
130		channel Y. The number must always be specified and
131		unique to allow association with event codes. Units after
132		application of scale and offset are milliwatts.
133
134What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
135KernelVersion:	3.2
136Contact:	linux-iio@vger.kernel.org
137Description:
138		Raw capacitance measurement from channel Y. Units after
139		application of scale and offset are nanofarads.
140
141What:		/sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
142KernelVersion:	3.2
143Contact:	linux-iio@vger.kernel.org
144Description:
145		Raw differential capacitance measurement equivalent to
146		channel Y - channel Z where these channel numbers apply to the
147		physically equivalent inputs when non differential readings are
148		separately available. In differential only parts, then all that
149		is required is a consistent labeling.  Units after application
150		of scale and offset are nanofarads.
151
152What:		/sys/bus/iio/devices/iio:deviceX/in_temp_raw
153What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_raw
154What:		/sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
155What:		/sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
156What:		/sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
157What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
158KernelVersion:	2.6.35
159Contact:	linux-iio@vger.kernel.org
160Description:
161		Raw (unscaled no bias removal etc.) temperature measurement.
162		If an axis is specified it generally means that the temperature
163		sensor is associated with one part of a compound device (e.g.
164		a gyroscope axis). The ambient and object modifiers distinguish
165		between ambient (reference) and distant temperature for contact-
166		less measurements. Units after application of scale and offset
167		are milli degrees Celsius.
168
169What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_input
170KernelVersion:	2.6.38
171Contact:	linux-iio@vger.kernel.org
172Description:
173		Scaled temperature measurement in milli degrees Celsius.
174
175What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
176What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
177What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
178KernelVersion:	2.6.35
179Contact:	linux-iio@vger.kernel.org
180Description:
181		Acceleration in direction x, y or z (may be arbitrarily assigned
182		but should match other such assignments on device).
183		Has all of the equivalent parameters as per voltageY. Units
184		after application of scale and offset are m/s^2.
185
186What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
187What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
188What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
189KernelVersion:	4.11
190Contact:	linux-iio@vger.kernel.org
191Description:
192		Gravity in direction x, y or z (may be arbitrarily assigned
193		but should match other such assignments on device).
194		Units after application of scale and offset are m/s^2.
195
196What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
197KernelVersion:	4.17
198Contact:	linux-iio@vger.kernel.org
199Description:
200		Angle of rotation. Units after application of scale and offset
201		are radians.
202
203What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
204What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
205KernelVersion:	4.19
206Contact:	linux-iio@vger.kernel.org
207Description:
208		Relative position in direction x or y on a pad (may be
209		arbitrarily assigned but should match other such assignments on
210		device).
211		Units after application of scale and offset are milli percents
212		from the pad's size in both directions. Should be calibrated by
213		the consumer.
214
215What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
216What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
217What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
218KernelVersion:	2.6.35
219Contact:	linux-iio@vger.kernel.org
220Description:
221		Angular velocity about axis x, y or z (may be arbitrarily
222		assigned). Has all the equivalent parameters as	per voltageY.
223		Units after application of scale and offset are	radians per
224		second.
225
226What:		/sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
227What:		/sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
228What:		/sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
229KernelVersion:	2.6.35
230Contact:	linux-iio@vger.kernel.org
231Description:
232		Inclination raw reading about axis x, y or z (may be
233		arbitrarily assigned). Data converted by application of offset
234		and scale to degrees.
235
236What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
237What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
238What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
239KernelVersion:	2.6.35
240Contact:	linux-iio@vger.kernel.org
241Description:
242		Magnetic field along axis x, y or z (may be arbitrarily
243		assigned).  Data converted by application of offset
244		then scale to Gauss.
245
246What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
247What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
248What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
249KernelVersion:	2.6.36
250Contact:	linux-iio@vger.kernel.org
251Description:
252		Highest value since some reset condition.  These
253		attributes allow access to this and are otherwise
254		the direct equivalent of the <type>Y[_name]_raw attributes.
255
256What:		/sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
257KernelVersion:	2.6.36
258Contact:	linux-iio@vger.kernel.org
259Description:
260		A computed peak value based on the sum squared magnitude of
261		the underlying value in the specified directions.
262
263What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
264What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_raw
265KernelVersion:	3.8
266Contact:	linux-iio@vger.kernel.org
267Description:
268		Raw pressure measurement from channel Y. Units after
269		application of scale and offset are kilopascal.
270
271What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_input
272What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_input
273KernelVersion:	3.8
274Contact:	linux-iio@vger.kernel.org
275Description:
276		Scaled pressure measurement from channel Y, in kilopascal.
277
278What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
279KernelVersion:	3.14
280Contact:	linux-iio@vger.kernel.org
281Description:
282		Raw humidity measurement of air. Units after application of
283		scale and offset are milli percent.
284
285What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
286KernelVersion:	3.14
287Contact:	linux-iio@vger.kernel.org
288Description:
289		Scaled humidity measurement in milli percent.
290
291What:		/sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
292KernelVersion:	3.5
293Contact:	linux-iio@vger.kernel.org
294Description:
295		Averaged raw measurement from channel X. The number of values
296		used for averaging is device specific. The converting rules for
297		normal raw values also applies to the averaged raw values.
298
299What:		/sys/bus/iio/devices/iio:deviceX/in_accel_offset
300What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
301What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
302What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
303What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
304What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_offset
305What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
306What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
307What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
308What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
309What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_offset
310What:		/sys/bus/iio/devices/iio:deviceX/in_current_offset
311What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
312What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
313What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_offset
314What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_offset
315What:		/sys/bus/iio/devices/iio:deviceX/in_tempY_offset
316What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
317What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
318What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
319What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
320What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
321What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
322What:		/sys/bus/iio/devices/iio:deviceX/in_angl_offset
323KernelVersion:	2.6.35
324Contact:	linux-iio@vger.kernel.org
325Description:
326		If known for a device, offset to be added to <type>[Y]_raw prior
327		to scaling by <type>[Y]_scale in order to obtain value in the
328		<type> units as specified in <type>[Y]_raw documentation.
329		Not present if the offset is always 0 or unknown. If Y or
330		axis <x|y|z> is not present, then the offset applies to all
331		in channels of <type>.
332		May be writable if a variable offset can be applied on the
333		device. Note that this is different to calibbias which
334		is for devices (or drivers) that apply offsets to compensate
335		for variation between different instances of the part, typically
336		adjusted by using some hardware supported calibration procedure.
337		Calibbias is applied internally, offset is applied in userspace
338		to the _raw output.
339
340What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
341What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
342What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
343What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
344What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_scale
345What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
346What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
347What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
348What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
349What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
350What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_scale
351What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
352What:		/sys/bus/iio/devices/iio:deviceX/in_current_scale
353What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
354What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
355What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_scale
356What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_scale
357What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale
358What:		/sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
359What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
360What:		/sys/bus/iio/devices/iio:deviceX/in_energy_scale
361What:		/sys/bus/iio/devices/iio:deviceX/in_distance_scale
362What:		/sys/bus/iio/devices/iio:deviceX/in_magn_scale
363What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
364What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
365What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
366What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
367What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
368What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
369What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
370What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
371What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
372What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
373What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
374What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
375What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
376What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
377KernelVersion:	2.6.35
378Contact:	linux-iio@vger.kernel.org
379Description:
380		If known for a device, scale to be applied to <type>Y[_name]_raw
381		post addition of <type>[Y][_name]_offset in order to obtain the
382		measured value in <type> units as specified in
383		<type>[Y][_name]_raw documentation.  If shared across all in
384		channels then Y and <x|y|z> are not present and the value is
385		called <type>[Y][_name]_scale. The peak modifier means this
386		value is applied to <type>Y[_name]_peak_raw values.
387
388What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
389What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
390What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
391What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
392What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
393What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
394What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
395What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
396What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
397What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
398KernelVersion:	2.6.35
399Contact:	linux-iio@vger.kernel.org
400Description:
401		Hardware applied calibration offset (assumed to fix production
402		inaccuracies).
403
404What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
405What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
406What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
407What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
408What		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
409What		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
410What		/sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
411What		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
412What		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
413What		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
414What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
415What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
416What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
417what		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
418what		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
419What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
420What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
421What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
422KernelVersion:	2.6.35
423Contact:	linux-iio@vger.kernel.org
424Description:
425		Hardware applied calibration scale factor (assumed to fix
426		production inaccuracies).  If shared across all channels,
427		<type>_calibscale is used.
428
429What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
430What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
431What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
432What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
433KernelVersion:	4.0
434Contact:	linux-iio@vger.kernel.org
435Description:
436		Gender of the user (e.g.: male, female) used by some pedometers
437		to compute the stride length, distance, speed and activity
438		type.
439
440What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
441What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
442What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
443What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
444KernelVersion:	4.0
445Contact:	linux-iio@vger.kernel.org
446Description:
447		Lists all available gender values (e.g.: male, female).
448
449What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
450What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
451What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
452What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
453KernelVersion:	3.19
454Contact:	linux-iio@vger.kernel.org
455Description:
456		Height of the user (in meters) used by some pedometers
457		to compute the stride length, distance, speed and activity
458		type.
459
460What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
461KernelVersion:	4.0
462Contact:	linux-iio@vger.kernel.org
463Description:
464		Weight of the user (in kg). It is needed by some pedometers
465		to compute the calories burnt by the user.
466
467What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
468What:		/sys/.../iio:deviceX/in_anglvel_scale_available
469What:		/sys/.../iio:deviceX/in_magn_scale_available
470What:		/sys/.../iio:deviceX/in_illuminance_scale_available
471What:		/sys/.../iio:deviceX/in_intensity_scale_available
472What:		/sys/.../iio:deviceX/in_proximity_scale_available
473What:		/sys/.../iio:deviceX/in_voltageX_scale_available
474What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
475What:		/sys/.../iio:deviceX/out_voltageX_scale_available
476What:		/sys/.../iio:deviceX/out_altvoltageX_scale_available
477What:		/sys/.../iio:deviceX/in_capacitance_scale_available
478What:		/sys/.../iio:deviceX/in_pressure_scale_available
479What:		/sys/.../iio:deviceX/in_pressureY_scale_available
480KernelVersion:	2.6.35
481Contact:	linux-iio@vger.kernel.org
482Description:
483		If a discrete set of scale values is available, they
484		are listed in this attribute.
485
486What		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
487What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
488What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
489What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
490What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
491KernelVersion:	2.6.35
492Contact:	linux-iio@vger.kernel.org
493Description:
494		Hardware applied gain factor. If shared across all channels,
495		<type>_hardwaregain is used.
496
497What:		/sys/.../in_accel_filter_low_pass_3db_frequency
498What:		/sys/.../in_magn_filter_low_pass_3db_frequency
499What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
500KernelVersion:	3.2
501Contact:	linux-iio@vger.kernel.org
502Description:
503		If a known or controllable low pass filter is applied
504		to the underlying data channel, then this parameter
505		gives the 3dB frequency of the filter in Hz.
506
507What:		/sys/.../in_accel_filter_high_pass_3db_frequency
508What:		/sys/.../in_anglvel_filter_high_pass_3db_frequency
509What:		/sys/.../in_magn_filter_high_pass_3db_frequency
510KernelVersion:	4.2
511Contact:	linux-iio@vger.kernel.org
512Description:
513		If a known or controllable high pass filter is applied
514		to the underlying data channel, then this parameter
515		gives the 3dB frequency of the filter in Hz.
516
517What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
518What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
519KernelVersion:	2.6.37
520Contact:	linux-iio@vger.kernel.org
521Description:
522		Raw (unscaled, no bias etc.) output voltage for
523		channel Y.  The number must always be specified and
524		unique if the output corresponds to a single channel.
525		While DAC like devices typically use out_voltage,
526		a continuous frequency generating device, such as
527		a DDS or PLL should use out_altvoltage.
528
529What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
530What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
531KernelVersion:	2.6.37
532Contact:	linux-iio@vger.kernel.org
533Description:
534		Raw (unscaled, no bias etc.) output voltage for an aggregate of
535		channel Y, channel Z, etc.  This interface is available in cases
536		where a single output sets the value for multiple channels
537		simultaneously.
538
539What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
540What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
541What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
542What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
543KernelVersion:	2.6.38
544Contact:	linux-iio@vger.kernel.org
545Description:
546		Specifies the output powerdown mode.
547		DAC output stage is disconnected from the amplifier and
548		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
549		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
550		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
551		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
552		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
553		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
554		125kohm_to_gnd: connected to ground via an 125kOhm resistor,
555		500kohm_to_gnd: connected to ground via a 500kOhm resistor,
556		640kohm_to_gnd: connected to ground via a 640kOhm resistor,
557		three_state: left floating.
558		For a list of available output power down options read
559		outX_powerdown_mode_available. If Y is not present the
560		mode is shared across all outputs.
561
562What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
563What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
564What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
565What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
566KernelVersion:	2.6.38
567Contact:	linux-iio@vger.kernel.org
568Description:
569		Lists all available output power down modes.
570		If Y is not present the mode is shared across all outputs.
571
572What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
573What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
574What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
575What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
576KernelVersion:	2.6.38
577Contact:	linux-iio@vger.kernel.org
578Description:
579		Writing 1 causes output Y to enter the power down mode specified
580		by the corresponding outY_powerdown_mode. DAC output stage is
581		disconnected from the amplifier. Clearing returns to normal
582		operation. Y may be suppressed if all outputs are controlled
583		together.
584
585What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
586KernelVersion:	3.4.0
587Contact:	linux-iio@vger.kernel.org
588Description:
589		Output frequency for channel Y in Hz. The number must always be
590		specified and unique if the output corresponds to a single
591		channel.
592
593What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
594KernelVersion:	3.4.0
595Contact:	linux-iio@vger.kernel.org
596Description:
597		Phase in radians of one frequency/clock output Y
598		(out_altvoltageY) relative to another frequency/clock output
599		(out_altvoltageZ) of the device X. The number must always be
600		specified and unique if the output corresponds to a single
601		channel.
602
603What:		/sys/bus/iio/devices/iio:deviceX/events
604KernelVersion:	2.6.35
605Contact:	linux-iio@vger.kernel.org
606Description:
607		Configuration of which hardware generated events are passed up
608		to user-space.
609
610What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
611What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
612What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
613What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
614What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
615What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
616What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
617What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
618What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
619What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
620What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
621What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
622What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
623What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
624What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
625What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
626What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
627What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
628What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
629What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
630What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
631What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
632What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
633What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
634What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
635What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
636What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
637What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
638What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
639What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
640What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
641What:		/sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
642What:		/sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
643KernelVersion:	2.6.37
644Contact:	linux-iio@vger.kernel.org
645Description:
646		Event generated when channel passes a threshold in the specified
647		(_rising|_falling) direction. If the direction is not specified,
648		then either the device will report an event which ever direction
649		a single threshold value is passed in (e.g.
650		<type>[Y][_name]_<raw|input>_thresh_value) or
651		<type>[Y][_name]_<raw|input>_thresh_rising_value and
652		<type>[Y][_name]_<raw|input>_thresh_falling_value may take
653		different values, but the device can only enable both thresholds
654		or neither.
655		Note the driver will assume the last p events requested are
656		to be enabled where p is how many it supports (which may vary
657		depending on the exact set requested. So if you want to be
658		sure you have set what you think you have, check the contents of
659		these attributes after everything is configured. Drivers may
660		have to buffer any parameters so that they are consistent when
661		a given event type is enabled at a future point (and not those for
662		whatever event was previously enabled).
663
664What:		/sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
665What:		/sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
666What:		/sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
667What:		/sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
668What:		/sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
669What:		/sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
670What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
671What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
672What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
673What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
674What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
675What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
676What:		/sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
677What:		/sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
678What:		/sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
679What:		/sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
680What:		/sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
681What:		/sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
682What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
683What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
684What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
685What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
686What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
687What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
688What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
689What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
690What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
691What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
692What:		/sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
693What:		/sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
694What:		/sys/.../iio:deviceX/events/in_tempY_roc_rising_en
695What:		/sys/.../iio:deviceX/events/in_tempY_roc_falling_en
696KernelVersion:	2.6.37
697Contact:	linux-iio@vger.kernel.org
698Description:
699		Event generated when channel passes a threshold on the rate of
700		change (1st differential) in the specified (_rising|_falling)
701		direction. If the direction is not specified, then either the
702		device will report an event which ever direction a single
703		threshold value is passed in (e.g.
704		<type>[Y][_name]_<raw|input>_roc_value) or
705		<type>[Y][_name]_<raw|input>_roc_rising_value and
706		<type>[Y][_name]_<raw|input>_roc_falling_value may take
707		different values, but the device can only enable both rate of
708		change thresholds or neither.
709		Note the driver will assume the last p events requested are
710		to be enabled where p is however many it supports (which may
711		vary depending on the exact set requested. So if you want to be
712		sure you have set what you think you have, check the contents of
713		these attributes after everything is configured. Drivers may
714		have to buffer any parameters so that they are consistent when
715		a given event type is enabled a future point (and not those for
716		whatever event was previously enabled).
717
718What:		/sys/.../events/in_accel_thresh_rising_value
719What:		/sys/.../events/in_accel_thresh_falling_value
720What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
721What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
722What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
723What:		/sys/.../events/in_accel_y_raw_thresh_falling_value
724What:		/sys/.../events/in_accel_z_raw_thresh_rising_value
725What:		/sys/.../events/in_accel_z_raw_thresh_falling_value
726What:		/sys/.../events/in_anglvel_x_raw_thresh_rising_value
727What:		/sys/.../events/in_anglvel_x_raw_thresh_falling_value
728What:		/sys/.../events/in_anglvel_y_raw_thresh_rising_value
729What:		/sys/.../events/in_anglvel_y_raw_thresh_falling_value
730What:		/sys/.../events/in_anglvel_z_raw_thresh_rising_value
731What:		/sys/.../events/in_anglvel_z_raw_thresh_falling_value
732What:		/sys/.../events/in_magn_x_raw_thresh_rising_value
733What:		/sys/.../events/in_magn_x_raw_thresh_falling_value
734What:		/sys/.../events/in_magn_y_raw_thresh_rising_value
735What:		/sys/.../events/in_magn_y_raw_thresh_falling_value
736What:		/sys/.../events/in_magn_z_raw_thresh_rising_value
737What:		/sys/.../events/in_magn_z_raw_thresh_falling_value
738What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
739What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
740What:		/sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
741What:		/sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
742What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
743What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
744What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
745What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
746What:		/sys/.../events/in_voltageY_supply_raw_thresh_rising_value
747What:		/sys/.../events/in_voltageY_supply_raw_thresh_falling_value
748What:		/sys/.../events/in_voltageY_raw_thresh_rising_value
749What:		/sys/.../events/in_voltageY_raw_thresh_falling_value
750What:		/sys/.../events/in_tempY_raw_thresh_rising_value
751What:		/sys/.../events/in_tempY_raw_thresh_falling_value
752What:		/sys/.../events/in_illuminance0_thresh_falling_value
753what:		/sys/.../events/in_illuminance0_thresh_rising_value
754what:		/sys/.../events/in_proximity0_thresh_falling_value
755what:		/sys/.../events/in_proximity0_thresh_rising_value
756What:		/sys/.../events/in_illuminance_thresh_rising_value
757What:		/sys/.../events/in_illuminance_thresh_falling_value
758KernelVersion:	2.6.37
759Contact:	linux-iio@vger.kernel.org
760Description:
761		Specifies the value of threshold that the device is comparing
762		against for the events enabled by
763		<type>Y[_name]_thresh[_rising|falling]_en.
764		If separate attributes exist for the two directions, but
765		direction is not specified for this attribute, then a single
766		threshold value applies to both directions.
767		The raw or input element of the name indicates whether the
768		value is in raw device units or in processed units (as _raw
769		and _input do on sysfs direct channel read attributes).
770
771What:		/sys/.../events/in_accel_scale
772What:		/sys/.../events/in_accel_peak_scale
773What:		/sys/.../events/in_anglvel_scale
774What:		/sys/.../events/in_magn_scale
775What:		/sys/.../events/in_rot_from_north_magnetic_scale
776What:		/sys/.../events/in_rot_from_north_true_scale
777What:		/sys/.../events/in_voltage_scale
778What:		/sys/.../events/in_voltage_supply_scale
779What:		/sys/.../events/in_temp_scale
780What:		/sys/.../events/in_illuminance_scale
781What:		/sys/.../events/in_proximity_scale
782KernelVersion:	3.21
783Contact:	linux-iio@vger.kernel.org
784Description:
785                Specifies the conversion factor from the standard units
786                to device specific units used to set the event trigger
787                threshold.
788
789What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
790What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
791What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
792What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
793What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
794What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
795What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
796What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
797What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
798What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
799What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
800What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
801What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
802What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
803What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
804What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
805What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
806What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
807What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
808What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
809What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
810What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
811What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
812What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
813What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
814What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
815What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
816What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
817What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
818What:		/sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
819What:		/sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
820What:		/sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
821What:		/sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
822What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
823What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
824What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
825What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
826What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
827What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
828What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
829What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
830What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
831What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
832What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
833What:		/sys/.../events/in_tempY_thresh_either_hysteresis
834What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
835what:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
836what:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
837what:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
838what:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
839what:		/sys/.../events/in_proximity0_thresh_either_hysteresis
840KernelVersion:	3.13
841Contact:	linux-iio@vger.kernel.org
842Description:
843		Specifies the hysteresis of threshold that the device is comparing
844		against for the events enabled by
845		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
846		If separate attributes exist for the two directions, but
847		direction is not specified for this attribute, then a single
848		hysteresis value applies to both directions.
849		For falling events the hysteresis is added to the _value attribute for
850		this event to get the upper threshold for when the event goes back to
851		normal, for rising events the hysteresis is subtracted from the _value
852		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
853		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
854		will get activated once in_voltage0_raw goes above 1200 and will become
855		deactivated again once the value falls below 1150.
856
857What:		/sys/.../events/in_accel_x_raw_roc_rising_value
858What:		/sys/.../events/in_accel_x_raw_roc_falling_value
859What:		/sys/.../events/in_accel_y_raw_roc_rising_value
860What:		/sys/.../events/in_accel_y_raw_roc_falling_value
861What:		/sys/.../events/in_accel_z_raw_roc_rising_value
862What:		/sys/.../events/in_accel_z_raw_roc_falling_value
863What:		/sys/.../events/in_anglvel_x_raw_roc_rising_value
864What:		/sys/.../events/in_anglvel_x_raw_roc_falling_value
865What:		/sys/.../events/in_anglvel_y_raw_roc_rising_value
866What:		/sys/.../events/in_anglvel_y_raw_roc_falling_value
867What:		/sys/.../events/in_anglvel_z_raw_roc_rising_value
868What:		/sys/.../events/in_anglvel_z_raw_roc_falling_value
869What:		/sys/.../events/in_magn_x_raw_roc_rising_value
870What:		/sys/.../events/in_magn_x_raw_roc_falling_value
871What:		/sys/.../events/in_magn_y_raw_roc_rising_value
872What:		/sys/.../events/in_magn_y_raw_roc_falling_value
873What:		/sys/.../events/in_magn_z_raw_roc_rising_value
874What:		/sys/.../events/in_magn_z_raw_roc_falling_value
875What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
876What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
877What:		/sys/.../events/in_rot_from_north_true_raw_roc_rising_value
878What:		/sys/.../events/in_rot_from_north_true_raw_roc_falling_value
879What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
880What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
881What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
882What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
883What:		/sys/.../events/in_voltageY_supply_raw_roc_rising_value
884What:		/sys/.../events/in_voltageY_supply_raw_roc_falling_value
885What:		/sys/.../events/in_voltageY_raw_roc_rising_value
886What:		/sys/.../events/in_voltageY_raw_roc_falling_value
887What:		/sys/.../events/in_tempY_raw_roc_rising_value
888What:		/sys/.../events/in_tempY_raw_roc_falling_value
889KernelVersion:	2.6.37
890Contact:	linux-iio@vger.kernel.org
891Description:
892		Specifies the value of rate of change threshold that the
893		device is comparing against for the events enabled by
894		<type>[Y][_name]_roc[_rising|falling]_en.
895		If separate attributes exist for the two directions,
896		but direction is not specified for this attribute,
897		then a single threshold value applies to both directions.
898		The raw or input element of the name indicates whether the
899		value is in raw device units or in processed units (as _raw
900		and _input do on sysfs direct channel read attributes).
901
902What:		/sys/.../events/in_accel_x_thresh_rising_period
903What:		/sys/.../events/in_accel_x_thresh_falling_period
904What:		/sys/.../events/in_accel_x_roc_rising_period
905What:		/sys/.../events/in_accel_x_roc_falling_period
906What:		/sys/.../events/in_accel_y_thresh_rising_period
907What:		/sys/.../events/in_accel_y_thresh_falling_period
908What:		/sys/.../events/in_accel_y_roc_rising_period
909What:		/sys/.../events/in_accel_y_roc_falling_period
910What:		/sys/.../events/in_accel_z_thresh_rising_period
911What:		/sys/.../events/in_accel_z_thresh_falling_period
912What:		/sys/.../events/in_accel_z_roc_rising_period
913What:		/sys/.../events/in_accel_z_roc_falling_period
914What:		/sys/.../events/in_anglvel_x_thresh_rising_period
915What:		/sys/.../events/in_anglvel_x_thresh_falling_period
916What:		/sys/.../events/in_anglvel_x_roc_rising_period
917What:		/sys/.../events/in_anglvel_x_roc_falling_period
918What:		/sys/.../events/in_anglvel_y_thresh_rising_period
919What:		/sys/.../events/in_anglvel_y_thresh_falling_period
920What:		/sys/.../events/in_anglvel_y_roc_rising_period
921What:		/sys/.../events/in_anglvel_y_roc_falling_period
922What:		/sys/.../events/in_anglvel_z_thresh_rising_period
923What:		/sys/.../events/in_anglvel_z_thresh_falling_period
924What:		/sys/.../events/in_anglvel_z_roc_rising_period
925What:		/sys/.../events/in_anglvel_z_roc_falling_period
926What:		/sys/.../events/in_magn_x_thresh_rising_period
927What:		/sys/.../events/in_magn_x_thresh_falling_period
928What:		/sys/.../events/in_magn_x_roc_rising_period
929What:		/sys/.../events/in_magn_x_roc_falling_period
930What:		/sys/.../events/in_magn_y_thresh_rising_period
931What:		/sys/.../events/in_magn_y_thresh_falling_period
932What:		/sys/.../events/in_magn_y_roc_rising_period
933What:		/sys/.../events/in_magn_y_roc_falling_period
934What:		/sys/.../events/in_magn_z_thresh_rising_period
935What:		/sys/.../events/in_magn_z_thresh_falling_period
936What:		/sys/.../events/in_magn_z_roc_rising_period
937What:		/sys/.../events/in_magn_z_roc_falling_period
938What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
939What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
940What:		/sys/.../events/in_rot_from_north_magnetic_roc_rising_period
941What:		/sys/.../events/in_rot_from_north_magnetic_roc_falling_period
942What:		/sys/.../events/in_rot_from_north_true_thresh_rising_period
943What:		/sys/.../events/in_rot_from_north_true_thresh_falling_period
944What:		/sys/.../events/in_rot_from_north_true_roc_rising_period
945What:		/sys/.../events/in_rot_from_north_true_roc_falling_period
946What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
947What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
948What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
949What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
950What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
951What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
952What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
953What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
954What:		/sys/.../events/in_voltageY_supply_thresh_rising_period
955What:		/sys/.../events/in_voltageY_supply_thresh_falling_period
956What:		/sys/.../events/in_voltageY_supply_roc_rising_period
957What:		/sys/.../events/in_voltageY_supply_roc_falling_period
958What:		/sys/.../events/in_voltageY_thresh_rising_period
959What:		/sys/.../events/in_voltageY_thresh_falling_period
960What:		/sys/.../events/in_voltageY_roc_rising_period
961What:		/sys/.../events/in_voltageY_roc_falling_period
962What:		/sys/.../events/in_tempY_thresh_rising_period
963What:		/sys/.../events/in_tempY_thresh_falling_period
964What:		/sys/.../events/in_tempY_roc_rising_period
965What:		/sys/.../events/in_tempY_roc_falling_period
966What:		/sys/.../events/in_accel_x&y&z_mag_falling_period
967What:		/sys/.../events/in_intensity0_thresh_period
968What:		/sys/.../events/in_proximity0_thresh_period
969What:		/sys/.../events/in_activity_still_thresh_rising_period
970What:		/sys/.../events/in_activity_still_thresh_falling_period
971What:		/sys/.../events/in_activity_walking_thresh_rising_period
972What:		/sys/.../events/in_activity_walking_thresh_falling_period
973What:		/sys/.../events/in_activity_jogging_thresh_rising_period
974What:		/sys/.../events/in_activity_jogging_thresh_falling_period
975What:		/sys/.../events/in_activity_running_thresh_rising_period
976What:		/sys/.../events/in_activity_running_thresh_falling_period
977What:		/sys/.../events/in_illuminance_thresh_either_period
978KernelVersion:	2.6.37
979Contact:	linux-iio@vger.kernel.org
980Description:
981		Period of time (in seconds) for which the condition must be
982		met before an event is generated. If direction is not
983		specified then this period applies to both directions.
984
985What:		/sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
986What:		/sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
987What:		/sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
988KernelVersion:	4.2
989Contact:	linux-iio@vger.kernel.org
990Description:
991		If a low pass filter can be applied to the event generation
992		this property gives its 3db frequency in Hz.
993		A value of zero disables the filter.
994
995What:		/sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
996What:		/sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
997What:		/sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
998KernelVersion:	4.2
999Contact:	linux-iio@vger.kernel.org
1000Description:
1001		If a high pass filter can be applied to the event generation
1002		this property gives its 3db frequency in Hz.
1003		A value of zero disables the filter.
1004
1005What:		/sys/.../events/in_activity_still_thresh_rising_en
1006What:		/sys/.../events/in_activity_still_thresh_falling_en
1007What:		/sys/.../events/in_activity_walking_thresh_rising_en
1008What:		/sys/.../events/in_activity_walking_thresh_falling_en
1009What:		/sys/.../events/in_activity_jogging_thresh_rising_en
1010What:		/sys/.../events/in_activity_jogging_thresh_falling_en
1011What:		/sys/.../events/in_activity_running_thresh_rising_en
1012What:		/sys/.../events/in_activity_running_thresh_falling_en
1013KernelVersion:	3.19
1014Contact:	linux-iio@vger.kernel.org
1015Description:
1016		Enables or disables activitity events. Depending on direction
1017		an event is generated when sensor ENTERS or LEAVES a given state.
1018
1019What:		/sys/.../events/in_activity_still_thresh_rising_value
1020What:		/sys/.../events/in_activity_still_thresh_falling_value
1021What:		/sys/.../events/in_activity_walking_thresh_rising_value
1022What:		/sys/.../events/in_activity_walking_thresh_falling_value
1023What:		/sys/.../events/in_activity_jogging_thresh_rising_value
1024What:		/sys/.../events/in_activity_jogging_thresh_falling_value
1025What:		/sys/.../events/in_activity_running_thresh_rising_value
1026What:		/sys/.../events/in_activity_running_thresh_falling_value
1027KernelVersion:	3.19
1028Contact:	linux-iio@vger.kernel.org
1029Description:
1030		Confidence value (in units as percentage) to be used
1031		for deciding when an event should be generated. E.g for
1032		running: If the confidence value reported by the sensor
1033		is greater than in_activity_running_thresh_rising_value
1034		then the sensor ENTERS running state. Conversely, if the
1035		confidence value reported by the sensor is lower than
1036		in_activity_running_thresh_falling_value then the sensor
1037		is LEAVING running state.
1038
1039What:		/sys/.../iio:deviceX/events/in_accel_mag_en
1040What:		/sys/.../iio:deviceX/events/in_accel_mag_rising_en
1041What:		/sys/.../iio:deviceX/events/in_accel_mag_falling_en
1042What:		/sys/.../iio:deviceX/events/in_accel_x_mag_en
1043What:		/sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1044What:		/sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1045What:		/sys/.../iio:deviceX/events/in_accel_y_mag_en
1046What:		/sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1047What:		/sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1048What:		/sys/.../iio:deviceX/events/in_accel_z_mag_en
1049What:		/sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1050What:		/sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1051What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1052What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1053KernelVersion:	2.6.37
1054Contact:	linux-iio@vger.kernel.org
1055Description:
1056		Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1057		magnitude of the channel is compared to the threshold, not its
1058		signed value.
1059
1060What:		/sys/.../events/in_accel_raw_mag_value
1061What:		/sys/.../events/in_accel_x_raw_mag_rising_value
1062What:		/sys/.../events/in_accel_y_raw_mag_rising_value
1063What:		/sys/.../events/in_accel_z_raw_mag_rising_value
1064KernelVersion:	2.6.37
1065Contact:	linux-iio@vger.kernel.org
1066Description:
1067		The value to which the magnitude of the channel is compared. If
1068		number or direction is not specified, applies to all channels of
1069		this type.
1070
1071What:		/sys/.../events/in_steps_change_en
1072KernelVersion:	4.0
1073Contact:	linux-iio@vger.kernel.org
1074Description:
1075		Event generated when channel passes a threshold on the absolute
1076		change in value. E.g. for steps: a step change event is
1077		generated each time the user takes N steps, where N is set using
1078		in_steps_change_value.
1079
1080What:		/sys/.../events/in_steps_change_value
1081KernelVersion:	4.0
1082Contact:	linux-iio@vger.kernel.org
1083Description:
1084		Specifies the value of change threshold that the
1085		device is comparing against for the events enabled by
1086		<type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1087		if set to 3, a step change event will be generated every 3
1088		steps.
1089
1090What:		/sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1091KernelVersion:	2.6.35
1092Contact:	linux-iio@vger.kernel.org
1093Description:
1094		The name of the trigger source being used, as per string given
1095		in /sys/class/iio/triggerY/name.
1096
1097What:		/sys/bus/iio/devices/iio:deviceX/buffer/length
1098KernelVersion:	2.6.35
1099Contact:	linux-iio@vger.kernel.org
1100Description:
1101		Number of scans contained by the buffer.
1102
1103What:		/sys/bus/iio/devices/iio:deviceX/buffer/enable
1104KernelVersion:	2.6.35
1105Contact:	linux-iio@vger.kernel.org
1106Description:
1107		Actually start the buffer capture up.  Will start trigger
1108		if first device and appropriate.
1109
1110What:		/sys/bus/iio/devices/iio:deviceX/scan_elements
1111KernelVersion:	2.6.37
1112Contact:	linux-iio@vger.kernel.org
1113Description:
1114		Directory containing interfaces for elements that will be
1115		captured for a single triggered sample set in the buffer.
1116
1117What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_en
1118What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_en
1119What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_en
1120What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1121What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1122What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1123What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_en
1124What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_en
1125What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_en
1126What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1127What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1128What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1129What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1130What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_en
1131What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1132What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_en
1133What:		/sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1134What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1135What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1136What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1137What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1138What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_en
1139What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_en
1140What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_en
1141What:		/sys/.../iio:deviceX/scan_elements/in_pressure_en
1142What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1143What:		/sys/.../iio:deviceX/scan_elements/in_proximity_en
1144KernelVersion:	2.6.37
1145Contact:	linux-iio@vger.kernel.org
1146Description:
1147		Scan element control for triggered data capture.
1148
1149What:		/sys/.../iio:deviceX/scan_elements/in_accel_type
1150What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_type
1151What:		/sys/.../iio:deviceX/scan_elements/in_magn_type
1152What:		/sys/.../iio:deviceX/scan_elements/in_incli_type
1153What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_type
1154What:		/sys/.../iio:deviceX/scan_elements/in_voltage_type
1155What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1156What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1157What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1158What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1159What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1160What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_type
1161What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_type
1162What:		/sys/.../iio:deviceX/scan_elements/in_pressure_type
1163What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1164What:		/sys/.../iio:deviceX/scan_elements/in_proximity_type
1165KernelVersion:	2.6.37
1166Contact:	linux-iio@vger.kernel.org
1167Description:
1168		Description of the scan element data storage within the buffer
1169		and hence the form in which it is read from user-space.
1170		Form is [be|le]:[s|u]bits/storagebits[>>shift].
1171		be or le specifies big or little endian. s or u specifies if
1172		signed (2's complement) or unsigned. bits is the number of bits
1173		of data and storagebits is the space (after padding) that it
1174		occupies in the buffer. shift if specified, is the shift that
1175		needs to be applied prior to masking out unused bits. Some
1176		devices put their data in the middle of the transferred elements
1177		with additional information on both sides.  Note that some
1178		devices will have additional information in the unused bits
1179		so to get a clean value, the bits value must be used to mask
1180		the buffer output value appropriately.  The storagebits value
1181		also specifies the data alignment.  So s48/64>>2 will be a
1182		signed 48 bit integer stored in a 64 bit location aligned to
1183		a 64 bit boundary. To obtain the clean value, shift right 2
1184		and apply a mask to zero the top 16 bits of the result.
1185		For other storage combinations this attribute will be extended
1186		appropriately.
1187
1188What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
1189KernelVersion:	2.6.37
1190Contact:	linux-iio@vger.kernel.org
1191Description:
1192		If the type parameter can take one of a small set of values,
1193		this attribute lists them.
1194
1195What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_index
1196What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1197What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1198What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1199What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1200What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1201What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_index
1202What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_index
1203What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_index
1204What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1205What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1206What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1207What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_index
1208What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_index
1209What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_index
1210What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1211What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1212What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1213What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1214What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_index
1215What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_index
1216What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_index
1217What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_index
1218What:		/sys/.../iio:deviceX/scan_elements/in_pressure_index
1219What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1220What:		/sys/.../iio:deviceX/scan_elements/in_proximity_index
1221KernelVersion:	2.6.37
1222Contact:	linux-iio@vger.kernel.org
1223Description:
1224		A single positive integer specifying the position of this
1225		scan element in the buffer. Note these are not dependent on
1226		what is enabled and may not be contiguous. Thus for user-space
1227		to establish the full layout these must be used in conjunction
1228		with all _en attributes to establish which channels are present,
1229		and the relevant _type attributes to establish the data storage
1230		format.
1231
1232What:		/sys/.../iio:deviceX/in_activity_still_input
1233What:		/sys/.../iio:deviceX/in_activity_walking_input
1234What:		/sys/.../iio:deviceX/in_activity_jogging_input
1235What:		/sys/.../iio:deviceX/in_activity_running_input
1236KernelVersion:	3.19
1237Contact:	linux-iio@vger.kernel.org
1238Description:
1239		This attribute is used to read the confidence for an activity
1240		expressed in units as percentage.
1241
1242What:		/sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1243KernelVersion:	2.6.38
1244Contact:	linux-iio@vger.kernel.org
1245Description:
1246		This attribute is used to read the amount of quadrature error
1247		present in the device at a given time.
1248
1249What:		/sys/.../iio:deviceX/in_accelX_power_mode
1250KernelVersion:	3.11
1251Contact:	linux-iio@vger.kernel.org
1252Description:
1253		Specifies the chip power mode.
1254		low_noise: reduce noise level from ADC,
1255		low_power: enable low current consumption.
1256		For a list of available output power modes read
1257		in_accel_power_mode_available.
1258
1259What:		/sys/.../iio:deviceX/in_energy_input
1260What:		/sys/.../iio:deviceX/in_energy_raw
1261KernelVersion:	4.0
1262Contact:	linux-iio@vger.kernel.org
1263Description:
1264		This attribute is used to read the energy value reported by the
1265		device (e.g.: human activity sensors report energy burnt by the
1266		user). Units after application of scale are Joules.
1267
1268What:		/sys/.../iio:deviceX/in_distance_input
1269What:		/sys/.../iio:deviceX/in_distance_raw
1270KernelVersion:	4.0
1271Contact:	linux-iio@vger.kernel.org
1272Description:
1273		This attribute is used to read the measured distance to an object
1274		or the distance covered by the user since the last reboot while
1275		activated. Units after application of scale are meters.
1276
1277What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
1278KernelVersion:	3.4.0
1279Contact:	linux-iio@vger.kernel.org
1280Description:
1281		Writing '1' stores the current device configuration into
1282		on-chip EEPROM. After power-up or chip reset the device will
1283		automatically load the saved configuration.
1284
1285What:		/sys/.../iio:deviceX/in_proximity_raw
1286What:		/sys/.../iio:deviceX/in_proximity_input
1287What:		/sys/.../iio:deviceX/in_proximityY_raw
1288KernelVersion:	3.4
1289Contact:	linux-iio@vger.kernel.org
1290Description:
1291		Proximity measurement indicating that some
1292		object is near the sensor, usually by observing
1293		reflectivity of infrared or ultrasound emitted.
1294		Often these sensors are unit less and as such conversion
1295		to SI units is not possible. Higher proximity measurements
1296		indicate closer objects, and vice versa. Units after
1297		application of scale and offset are meters.
1298
1299What:		/sys/.../iio:deviceX/in_illuminance_input
1300What:		/sys/.../iio:deviceX/in_illuminance_raw
1301What:		/sys/.../iio:deviceX/in_illuminanceY_input
1302What:		/sys/.../iio:deviceX/in_illuminanceY_raw
1303What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
1304What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
1305What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
1306KernelVersion:	3.4
1307Contact:	linux-iio@vger.kernel.org
1308Description:
1309		Illuminance measurement, units after application of scale
1310		and offset are lux.
1311
1312What:		/sys/.../iio:deviceX/in_intensityY_raw
1313What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
1314What:		/sys/.../iio:deviceX/in_intensityY_both_raw
1315What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
1316What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
1317KernelVersion:	3.4
1318Contact:	linux-iio@vger.kernel.org
1319Description:
1320		Unit-less light intensity. Modifiers both and ir indicate
1321		that measurements contain visible and infrared light
1322		components or just infrared light, respectively. Modifier
1323		uv indicates that measurements contain ultraviolet light
1324		components. Modifier duv indicates that measurements
1325		contain deep ultraviolet light components.
1326
1327What:		/sys/.../iio:deviceX/in_uvindex_input
1328KernelVersion:	4.6
1329Contact:	linux-iio@vger.kernel.org
1330Description:
1331		UV light intensity index measuring the human skin's response to
1332		different wavelength of sunlight weighted according to the
1333		standardised CIE Erythemal Action Spectrum. UV index values range
1334		from 0 (low) to >=11 (extreme).
1335
1336What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
1337What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
1338What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
1339What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
1340What:		/sys/.../iio:deviceX/in_illuminance_integration_time
1341KernelVersion:	3.12
1342Contact:	linux-iio@vger.kernel.org
1343Description:
1344		This attribute is used to get/set the integration time in
1345		seconds.
1346
1347What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1348KernelVersion:	4.0
1349Contact:	linux-iio@vger.kernel.org
1350Description:
1351		Number of seconds in which to compute speed.
1352
1353What:		/sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1354KernelVersion:	3.15
1355Contact:	linux-iio@vger.kernel.org
1356Description:
1357		Raw value of quaternion components using a format
1358		x y z w. Here x, y, and z component represents the axis about
1359		which a rotation will occur and w component represents the
1360		amount of rotation.
1361
1362What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1363What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1364What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1365What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1366KernelVersion:	3.15
1367Contact:	linux-iio@vger.kernel.org
1368Description:
1369		Raw value of rotation from true/magnetic north measured with
1370		or without compensation from tilt sensors.
1371
1372What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1373What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1374What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1375KernelVersion:	3.18
1376Contact:	linux-iio@vger.kernel.org
1377Description:
1378		Raw current measurement from channel X. Units are in milliamps
1379		after application of scale and offset. If no offset or scale is
1380		present, output should be considered as processed with the
1381		unit in milliamps.
1382
1383		Channels with 'i' and 'q' modifiers always exist in pairs and both
1384		channels refer to the same signal. The 'i' channel contains the in-phase
1385		component of the signal while the 'q' channel contains the quadrature
1386		component.
1387
1388What:		/sys/.../iio:deviceX/in_energy_en
1389What:		/sys/.../iio:deviceX/in_distance_en
1390What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1391What:		/sys/.../iio:deviceX/in_steps_en
1392KernelVersion:	3.19
1393Contact:	linux-iio@vger.kernel.org
1394Description:
1395		Activates a device feature that runs in firmware/hardware.
1396		E.g. for steps: the pedometer saves power while not used;
1397		when activated, it will count the steps taken by the user in
1398		firmware and export them through in_steps_input.
1399
1400What:		/sys/.../iio:deviceX/in_steps_input
1401KernelVersion:	3.19
1402Contact:	linux-iio@vger.kernel.org
1403Description:
1404		This attribute is used to read the number of steps taken by the user
1405		since the last reboot while activated.
1406
1407What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1408What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1409KernelVersion:	3.19
1410Contact:	linux-iio@vger.kernel.org
1411Description:
1412		This attribute is used to read the current speed value of the
1413		user (which is the norm or magnitude of the velocity vector).
1414		Units after application of scale are m/s.
1415
1416What:		/sys/.../iio:deviceX/in_steps_debounce_count
1417KernelVersion:	4.0
1418Contact:	linux-iio@vger.kernel.org
1419Description:
1420		Specifies the number of steps that must occur within
1421		in_steps_filter_debounce_time for the pedometer to decide the
1422		consumer is making steps.
1423
1424What:		/sys/.../iio:deviceX/in_steps_debounce_time
1425KernelVersion:	4.0
1426Contact:	linux-iio@vger.kernel.org
1427Description:
1428		Specifies number of seconds in which we compute the steps
1429		that occur in order to decide if the consumer is making steps.
1430
1431What:		/sys/bus/iio/devices/iio:deviceX/buffer/watermark
1432KernelVersion:	4.2
1433Contact:	linux-iio@vger.kernel.org
1434Description:
1435		A single positive integer specifying the maximum number of scan
1436		elements to wait for.
1437		Poll will block until the watermark is reached.
1438		Blocking read will wait until the minimum between the requested
1439		read amount or the low water mark is available.
1440		Non-blocking read will retrieve the available samples from the
1441		buffer even if there are less samples then watermark level. This
1442		allows the application to block on poll with a timeout and read
1443		the available samples after the timeout expires and thus have a
1444		maximum delay guarantee.
1445
1446What:		/sys/bus/iio/devices/iio:deviceX/buffer/data_available
1447KernelVersion: 4.16
1448Contact:	linux-iio@vger.kernel.org
1449Description:
1450		A read-only value indicating the bytes of data available in the
1451		buffer. In the case of an output buffer, this indicates the
1452		amount of empty space available to write data to. In the case of
1453		an input buffer, this indicates the amount of data available for
1454		reading.
1455
1456What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1457KernelVersion: 4.2
1458Contact:	linux-iio@vger.kernel.org
1459Description:
1460		A read-only boolean value that indicates if the hardware fifo is
1461		currently enabled or disabled. If the device does not have a
1462		hardware fifo this entry is not present.
1463		The hardware fifo is enabled when the buffer is enabled if the
1464		current hardware fifo watermark level is set and other current
1465		device settings allows it (e.g. if a trigger is set that samples
1466		data differently that the hardware fifo does then hardware fifo
1467		will not enabled).
1468		If the hardware fifo is enabled and the level of the hardware
1469		fifo reaches the hardware fifo watermark level the device will
1470		flush its hardware fifo to the device buffer. Doing a non
1471		blocking read on the device when no samples are present in the
1472		device buffer will also force a flush.
1473		When the hardware fifo is enabled there is no need to use a
1474		trigger to use buffer mode since the watermark settings
1475		guarantees that the hardware fifo is flushed to the device
1476		buffer.
1477
1478What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1479KernelVersion:	4.12
1480Contact:	linux-iio@vger.kernel.org
1481Description:
1482		A read/write property to provide capability to delay reporting of
1483		samples till a timeout is reached. This allows host processors to
1484		sleep, while the sensor is storing samples in its internal fifo.
1485		The maximum timeout in seconds can be specified by setting
1486		hwfifo_timeout.The current delay can be read by reading
1487		hwfifo_timeout. A value of 0 means that there is no timeout.
1488
1489What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1490KernelVersion: 4.2
1491Contact:	linux-iio@vger.kernel.org
1492Description:
1493		Read-only entry that contains a single integer specifying the
1494		current watermark level for the hardware fifo. If the device
1495		does not have a hardware fifo this entry is not present.
1496		The watermark level for the hardware fifo is set by the driver
1497		based on the value set by the user in buffer/watermark but
1498		taking into account hardware limitations (e.g. most hardware
1499		buffers are limited to 32-64 samples, some hardware buffers
1500		watermarks are fixed or have minimum levels).  A value of 0
1501		means that the hardware watermark is unset.
1502
1503What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1504KernelVersion: 4.2
1505Contact:       linux-iio@vger.kernel.org
1506Description:
1507		A single positive integer specifying the minimum watermark level
1508		for the hardware fifo of this device. If the device does not
1509		have a hardware fifo this entry is not present.
1510		If the user sets buffer/watermark to a value less than this one,
1511		then the hardware watermark will remain unset.
1512
1513What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1514KernelVersion: 4.2
1515Contact:       linux-iio@vger.kernel.org
1516Description:
1517		A single positive integer specifying the maximum watermark level
1518		for the hardware fifo of this device. If the device does not
1519		have a hardware fifo this entry is not present.
1520		If the user sets buffer/watermark to a value greater than this
1521		one, then the hardware watermark will be capped at this value.
1522
1523What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1524KernelVersion: 4.2
1525Contact:       linux-iio@vger.kernel.org
1526Description:
1527		A list of positive integers specifying the available watermark
1528		levels for the hardware fifo. This entry is optional and if it
1529		is not present it means that all the values between
1530		hwfifo_watermark_min and hwfifo_watermark_max are supported.
1531		If the user sets buffer/watermark to a value greater than
1532		hwfifo_watermak_min but not equal to any of the values in this
1533		list, the driver will chose an appropriate value for the
1534		hardware fifo watermark level.
1535
1536What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1537What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1538What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1539What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1540KernelVersion:	4.1
1541Contact:	linux-iio@vger.kernel.org
1542Description:
1543		The emissivity ratio of the surface in the field of view of the
1544		contactless temperature sensor.  Emissivity varies from 0 to 1,
1545		with 1 being the emissivity of a black body.
1546
1547What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1548What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1549What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1550KernelVersion:	4.2
1551Contact:	linux-iio@vger.kernel.org
1552Description:
1553		Hardware applied number of measurements for acquiring one
1554		data point. The HW will do <type>[_name]_oversampling_ratio
1555		measurements and return the average value as output data. Each
1556		value resulted from <type>[_name]_oversampling_ratio measurements
1557		is considered as one sample for <type>[_name]_sampling_frequency.
1558
1559What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1560What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1561What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1562What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1563What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1564What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1565What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1566What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1567What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1568What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1569KernelVersion:	4.3
1570Contact:	linux-iio@vger.kernel.org
1571Description:
1572		Raw (unscaled no offset etc.) reading of a substance. Units
1573		after application of scale and offset are percents.
1574
1575What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1576What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1577What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1578What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1579KernelVersion:	4.3
1580Contact:	linux-iio@vger.kernel.org
1581Description:
1582		Raw (unscaled no offset etc.) resistance reading that can be processed
1583		into an ohm value.
1584
1585What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
1586KernelVersion:	4.1.0
1587Contact:	linux-iio@vger.kernel.org
1588Description:
1589		'1' (enable) or '0' (disable) specifying the enable
1590		of heater function. Same reading values apply
1591		This ABI is especially applicable for humidity sensors
1592		to heatup the device and get rid of any condensation
1593		in some humidity environment
1594
1595What:		/sys/bus/iio/devices/iio:deviceX/in_ph_raw
1596KernelVersion:	4.5
1597Contact:	linux-iio@vger.kernel.org
1598Description:
1599		Raw (unscaled no offset etc.) pH reading of a substance as a negative
1600		base-10 logarithm of hydrodium ions in a litre of water.
1601
1602What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
1603What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1604What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1605What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1606What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1607KernelVersion:  4.6
1608Contact:        linux-iio@vger.kernel.org
1609Description:
1610		Mounting matrix for IIO sensors. This is a rotation matrix which
1611		informs userspace about sensor chip's placement relative to the
1612		main hardware it is mounted on.
1613		Main hardware placement is defined according to the local
1614		reference frame related to the physical quantity the sensor
1615		measures.
1616		Given that the rotation matrix is defined in a board specific
1617		way (platform data and / or device-tree), the main hardware
1618		reference frame definition is left to the implementor's choice
1619		(see below for a magnetometer example).
1620		Applications should apply this rotation matrix to samples so
1621		that when main hardware reference frame is aligned onto local
1622		reference frame, then sensor chip reference frame is also
1623		perfectly aligned with it.
1624		Matrix is a 3x3 unitary matrix and typically looks like
1625		[0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1626		[1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1627		are perfectly aligned with each other.
1628
1629		For example, a mounting matrix for a magnetometer sensor informs
1630		userspace about sensor chip's ORIENTATION relative to the main
1631		hardware.
1632		More specifically, main hardware orientation is defined with
1633		respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1634		* Y is in the ground plane and positive towards magnetic North ;
1635		* X is in the ground plane, perpendicular to the North axis and
1636		  positive towards the East ;
1637		* Z is perpendicular to the ground plane and positive upwards.
1638
1639		An implementor might consider that for a hand-held device, a
1640		'natural' orientation would be 'front facing camera at the top'.
1641		The main hardware reference frame could then be described as :
1642		* Y is in the plane of the screen and is positive towards the
1643		  top of the screen ;
1644		* X is in the plane of the screen, perpendicular to Y axis, and
1645		  positive towards the right hand side of the screen ;
1646		* Z is perpendicular to the screen plane and positive out of the
1647		  screen.
1648		Another example for a quadrotor UAV might be :
1649		* Y is in the plane of the propellers and positive towards the
1650		  front-view camera;
1651		* X is in the plane of the propellers, perpendicular to Y axis,
1652		  and positive towards the starboard side of the UAV ;
1653		* Z is perpendicular to propellers plane and positive upwards.
1654
1655What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1656KernelVersion:	4.8
1657Contact:	linux-iio@vger.kernel.org
1658Description:
1659		Raw (unscaled no offset etc.) electric conductivity reading that
1660		can be processed to siemens per meter.
1661
1662What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
1663KernelVersion:	4.10
1664Contact:	linux-iio@vger.kernel.org
1665Description:
1666		This interface is deprecated; please use the Counter subsystem.
1667
1668		Raw counter device counts from channel Y. For quadrature
1669		counters, multiplication by an available [Y]_scale results in
1670		the counts of a single quadrature signal phase from channel Y.
1671
1672What:		/sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1673KernelVersion:	4.10
1674Contact:	linux-iio@vger.kernel.org
1675Description:
1676		This interface is deprecated; please use the Counter subsystem.
1677
1678		Raw counter device index value from channel Y. This attribute
1679		provides an absolute positional reference (e.g. a pulse once per
1680		revolution) which may be used to home positional systems as
1681		required.
1682
1683What:		/sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1684KernelVersion:	4.12
1685Contact:	linux-iio@vger.kernel.org
1686Description:
1687		This interface is deprecated; please use the Counter subsystem.
1688
1689		A list of possible counting directions which are:
1690		- "up"	: counter device is increasing.
1691		- "down": counter device is decreasing.
1692
1693What:		/sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1694KernelVersion:	4.12
1695Contact:	linux-iio@vger.kernel.org
1696Description:
1697		This interface is deprecated; please use the Counter subsystem.
1698
1699		Raw counter device counters direction for channel Y.
1700
1701What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1702KernelVersion:	4.18
1703Contact:	linux-iio@vger.kernel.org
1704Description:
1705		Raw (unscaled) phase difference reading from channel Y
1706		that can be processed to radians.
1707
1708What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1709What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1710What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1711What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1712What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1713What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1714What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1715What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1716KernelVersion:	4.22
1717Contact:	linux-iio@vger.kernel.org
1718Description:
1719		Mass concentration reading of particulate matter in ug / m3.
1720		pmX consists of particles with aerodynamic diameter less or
1721		equal to X micrometers.
1722
1723What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
1724Date:		November 2019
1725KernelVersion:	5.4
1726Contact:	linux-iio@vger.kernel.org
1727Description:
1728		List of valid periods (in seconds) for which the light intensity
1729		must be above the threshold level before interrupt is asserted.
1730
1731What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
1732KernelVersion:	5.5
1733Contact:	linux-iio@vger.kernel.org
1734Description:
1735		Center frequency in Hz for a notch filter. Used i.e. for line
1736		noise suppression.
1737
1738What:		/sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
1739KernelVersion:	5.5
1740Contact:	linux-iio@vger.kernel.org
1741Description:
1742		One of the following thermocouple types: B, E, J, K, N, R, S, T.
1743