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