| blob | 0439c2aaf7419867c1dce0c223190530eb970d70 |
1 What: /sys/bus/iio/devices/iio:deviceX
2 KernelVersion: 2.6.35
3 Contact: linux-iio@vger.kernel.org
4 Description:
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.
9 What: /sys/bus/iio/devices/triggerX
10 KernelVersion: 2.6.35
11 Contact: linux-iio@vger.kernel.org
12 Description:
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.
22 What: /sys/bus/iio/devices/iio:deviceX/buffer
23 KernelVersion: 2.6.35
24 Contact: linux-iio@vger.kernel.org
25 Description:
26 Directory of attributes relating to the buffer for the device.
28 What: /sys/bus/iio/devices/iio:deviceX/name
29 KernelVersion: 2.6.35
30 Contact: linux-iio@vger.kernel.org
31 Description:
32 Description of the physical chip / device for device X.
33 Typically a part number.
35 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
36 What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
37 What: /sys/bus/iio/devices/triggerX/sampling_frequency
38 KernelVersion: 2.6.35
39 Contact: linux-iio@vger.kernel.org
40 Description:
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.
50 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
51 What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
52 What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
53 KernelVersion: 2.6.35
54 Contact: linux-iio@vger.kernel.org
55 Description:
56 When the internal sampling clock can only take a small
57 discrete set of values, this file lists those available.
59 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
60 KernelVersion: 2.6.38
61 Contact: linux-iio@vger.kernel.org
62 Description:
63 Hardware dependent ADC oversampling. Controls the sampling ratio
64 of the digital filter if available.
66 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
67 KernelVersion: 2.6.38
68 Contact: linux-iio@vger.kernel.org
69 Description:
70 Hardware dependent values supported by the oversampling filter.
72 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
73 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
74 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
75 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
76 KernelVersion: 2.6.35
77 Contact: linux-iio@vger.kernel.org
78 Description:
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.
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.
91 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
92 KernelVersion: 2.6.35
93 Contact: linux-iio@vger.kernel.org
94 Description:
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.
102 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
103 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
104 KernelVersion: 3.17
105 Contact: linux-iio@vger.kernel.org
106 Description:
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.
114 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
115 KernelVersion: 3.2
116 Contact: linux-iio@vger.kernel.org
117 Description:
118 Raw capacitance measurement from channel Y. Units after
119 application of scale and offset are nanofarads.
121 What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
122 KernelVersion: 3.2
123 Contact: linux-iio@vger.kernel.org
124 Description:
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.
132 What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
133 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
134 What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
135 What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
136 What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
137 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
138 KernelVersion: 2.6.35
139 Contact: linux-iio@vger.kernel.org
140 Description:
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.
149 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
150 KernelVersion: 2.6.38
151 Contact: linux-iio@vger.kernel.org
152 Description:
153 Scaled temperature measurement in milli degrees Celsius.
155 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
156 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
157 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
158 KernelVersion: 2.6.35
159 Contact: linux-iio@vger.kernel.org
160 Description:
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.
166 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
167 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
168 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
169 KernelVersion: 2.6.35
170 Contact: linux-iio@vger.kernel.org
171 Description:
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.
177 What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
178 What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
179 What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
180 KernelVersion: 2.6.35
181 Contact: linux-iio@vger.kernel.org
182 Description:
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.
187 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
188 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
189 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
190 KernelVersion: 2.6.35
191 Contact: linux-iio@vger.kernel.org
192 Description:
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.
197 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
198 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
199 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
200 KernelVersion: 2.6.36
201 Contact: linux-iio@vger.kernel.org
202 Description:
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.
207 What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
208 KernelVersion: 2.6.36
209 Contact: linux-iio@vger.kernel.org
210 Description:
211 A computed peak value based on the sum squared magnitude of
212 the underlying value in the specified directions.
214 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
215 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
216 KernelVersion: 3.8
217 Contact: linux-iio@vger.kernel.org
218 Description:
219 Raw pressure measurement from channel Y. Units after
220 application of scale and offset are kilopascal.
222 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
223 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
224 KernelVersion: 3.8
225 Contact: linux-iio@vger.kernel.org
226 Description:
227 Scaled pressure measurement from channel Y, in kilopascal.
229 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
230 KernelVersion: 3.14
231 Contact: linux-iio@vger.kernel.org
232 Description:
233 Raw humidity measurement of air. Units after application of
234 scale and offset are milli percent.
236 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
237 KernelVersion: 3.14
238 Contact: linux-iio@vger.kernel.org
239 Description:
240 Scaled humidity measurement in milli percent.
242 What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
243 KernelVersion: 3.5
244 Contact: linux-iio@vger.kernel.org
245 Description:
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.
250 What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
251 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
252 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
253 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
254 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
255 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
256 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
257 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
258 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
259 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
260 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
261 What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
262 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
263 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
264 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
265 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
266 What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
267 What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
268 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
269 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
270 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
271 What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
272 What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
273 KernelVersion: 2.6.35
274 Contact: linux-iio@vger.kernel.org
275 Description:
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.
290 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
291 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
292 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
293 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
294 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
295 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
296 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
297 What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
298 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
299 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
300 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
301 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
302 What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
303 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
304 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
305 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
306 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
307 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
308 What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
309 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
310 What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
311 What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
312 What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
313 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
314 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
315 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
316 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
317 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
318 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
319 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
320 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
321 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
322 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
323 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
324 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
325 KernelVersion: 2.6.35
326 Contact: linux-iio@vger.kernel.org
327 Description:
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.
336 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
337 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
338 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
339 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
340 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
341 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
342 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
343 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
344 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
345 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
346 KernelVersion: 2.6.35
347 Contact: linux-iio@vger.kernel.org
348 Description:
349 Hardware applied calibration offset (assumed to fix production
350 inaccuracies).
352 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
353 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
354 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
355 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
356 What /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
357 What /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
358 What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
359 What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
360 What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
361 What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
362 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
363 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
364 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
365 what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
366 what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
367 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
368 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
369 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
370 KernelVersion: 2.6.35
371 Contact: linux-iio@vger.kernel.org
372 Description:
373 Hardware applied calibration scale factor (assumed to fix
374 production inaccuracies). If shared across all channels,
375 <type>_calibscale is used.
377 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
378 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
379 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
380 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
381 KernelVersion: 4.0
382 Contact: linux-iio@vger.kernel.org
383 Description:
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.
388 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
389 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
390 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
391 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
392 KernelVersion: 4.0
393 Contact: linux-iio@vger.kernel.org
394 Description:
395 Lists all available gender values (e.g.: male, female).
397 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
398 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
399 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
400 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
401 KernelVersion: 3.19
402 Contact: linux-iio@vger.kernel.org
403 Description:
404 Height of the user (in meters) used by some pedometers
405 to compute the stride length, distance, speed and activity
406 type.
408 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
409 KernelVersion: 4.0
410 Contact: linux-iio@vger.kernel.org
411 Description:
412 Weight of the user (in kg). It is needed by some pedometers
413 to compute the calories burnt by the user.
415 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
416 What: /sys/.../iio:deviceX/in_anglvel_scale_available
417 What: /sys/.../iio:deviceX/in_magn_scale_available
418 What: /sys/.../iio:deviceX/in_illuminance_scale_available
419 What: /sys/.../iio:deviceX/in_intensity_scale_available
420 What: /sys/.../iio:deviceX/in_proximity_scale_available
421 What: /sys/.../iio:deviceX/in_voltageX_scale_available
422 What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
423 What: /sys/.../iio:deviceX/out_voltageX_scale_available
424 What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
425 What: /sys/.../iio:deviceX/in_capacitance_scale_available
426 What: /sys/.../iio:deviceX/in_pressure_scale_available
427 What: /sys/.../iio:deviceX/in_pressureY_scale_available
428 KernelVersion: 2.6.35
429 Contact: linux-iio@vger.kernel.org
430 Description:
431 If a discrete set of scale values is available, they
432 are listed in this attribute.
434 What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
435 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
436 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
437 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
438 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
439 KernelVersion: 2.6.35
440 Contact: linux-iio@vger.kernel.org
441 Description:
442 Hardware applied gain factor. If shared across all channels,
443 <type>_hardwaregain is used.
445 What: /sys/.../in_accel_filter_low_pass_3db_frequency
446 What: /sys/.../in_magn_filter_low_pass_3db_frequency
447 What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
448 KernelVersion: 3.2
449 Contact: linux-iio@vger.kernel.org
450 Description:
451 If a known or controllable low pass filter is applied
452 to the underlying data channel, then this parameter
453 gives the 3dB frequency of the filter in Hz.
455 What: /sys/.../in_accel_filter_high_pass_3db_frequency
456 What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
457 What: /sys/.../in_magn_filter_high_pass_3db_frequency
458 KernelVersion: 4.2
459 Contact: linux-iio@vger.kernel.org
460 Description:
461 If a known or controllable high pass filter is applied
462 to the underlying data channel, then this parameter
463 gives the 3dB frequency of the filter in Hz.
465 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
466 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
467 KernelVersion: 2.6.37
468 Contact: linux-iio@vger.kernel.org
469 Description:
470 Raw (unscaled, no bias etc.) output voltage for
471 channel Y. The number must always be specified and
472 unique if the output corresponds to a single channel.
473 While DAC like devices typically use out_voltage,
474 a continuous frequency generating device, such as
475 a DDS or PLL should use out_altvoltage.
477 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
478 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
479 KernelVersion: 2.6.37
480 Contact: linux-iio@vger.kernel.org
481 Description:
482 Raw (unscaled, no bias etc.) output voltage for an aggregate of
483 channel Y, channel Z, etc. This interface is available in cases
484 where a single output sets the value for multiple channels
485 simultaneously.
487 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
488 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
489 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
490 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
491 KernelVersion: 2.6.38
492 Contact: linux-iio@vger.kernel.org
493 Description:
494 Specifies the output powerdown mode.
495 DAC output stage is disconnected from the amplifier and
496 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
497 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
498 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
499 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
500 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
501 three_state: left floating.
502 For a list of available output power down options read
503 outX_powerdown_mode_available. If Y is not present the
504 mode is shared across all outputs.
506 What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
507 What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
508 What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
509 What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
510 KernelVersion: 2.6.38
511 Contact: linux-iio@vger.kernel.org
512 Description:
513 Lists all available output power down modes.
514 If Y is not present the mode is shared across all outputs.
516 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
517 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
518 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
519 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
520 KernelVersion: 2.6.38
521 Contact: linux-iio@vger.kernel.org
522 Description:
523 Writing 1 causes output Y to enter the power down mode specified
524 by the corresponding outY_powerdown_mode. DAC output stage is
525 disconnected from the amplifier. Clearing returns to normal
526 operation. Y may be suppressed if all outputs are controlled
527 together.
529 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
530 KernelVersion: 3.4.0
531 Contact: linux-iio@vger.kernel.org
532 Description:
533 Output frequency for channel Y in Hz. The number must always be
534 specified and unique if the output corresponds to a single
535 channel.
537 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
538 KernelVersion: 3.4.0
539 Contact: linux-iio@vger.kernel.org
540 Description:
541 Phase in radians of one frequency/clock output Y
542 (out_altvoltageY) relative to another frequency/clock output
543 (out_altvoltageZ) of the device X. The number must always be
544 specified and unique if the output corresponds to a single
545 channel.
547 What: /sys/bus/iio/devices/iio:deviceX/events
548 KernelVersion: 2.6.35
549 Contact: linux-iio@vger.kernel.org
550 Description:
551 Configuration of which hardware generated events are passed up
552 to user-space.
554 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
555 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
556 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
557 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
558 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
559 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
560 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
561 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
562 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
563 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
564 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
565 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
566 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
567 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
568 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
569 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
570 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
571 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
572 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
573 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
574 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
575 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
576 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
577 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
578 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
579 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
580 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
581 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
582 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
583 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
584 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
585 What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
586 What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
587 KernelVersion: 2.6.37
588 Contact: linux-iio@vger.kernel.org
589 Description:
590 Event generated when channel passes a threshold in the specified
591 (_rising|_falling) direction. If the direction is not specified,
592 then either the device will report an event which ever direction
593 a single threshold value is passed in (e.g.
594 <type>[Y][_name]_<raw|input>_thresh_value) or
595 <type>[Y][_name]_<raw|input>_thresh_rising_value and
596 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
597 different values, but the device can only enable both thresholds
598 or neither.
599 Note the driver will assume the last p events requested are
600 to be enabled where p is how many it supports (which may vary
601 depending on the exact set requested. So if you want to be
602 sure you have set what you think you have, check the contents of
603 these attributes after everything is configured. Drivers may
604 have to buffer any parameters so that they are consistent when
605 a given event type is enabled at a future point (and not those for
606 whatever event was previously enabled).
608 What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
609 What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
610 What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
611 What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
612 What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
613 What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
614 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
615 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
616 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
617 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
618 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
619 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
620 What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
621 What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
622 What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
623 What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
624 What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
625 What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
626 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
627 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
628 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
629 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
630 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
631 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
632 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
633 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
634 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
635 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
636 What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
637 What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
638 What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
639 What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
640 KernelVersion: 2.6.37
641 Contact: linux-iio@vger.kernel.org
642 Description:
643 Event generated when channel passes a threshold on the rate of
644 change (1st differential) in the specified (_rising|_falling)
645 direction. If the direction is not specified, then either the
646 device will report an event which ever direction a single
647 threshold value is passed in (e.g.
648 <type>[Y][_name]_<raw|input>_roc_value) or
649 <type>[Y][_name]_<raw|input>_roc_rising_value and
650 <type>[Y][_name]_<raw|input>_roc_falling_value may take
651 different values, but the device can only enable both rate of
652 change thresholds or neither.
653 Note the driver will assume the last p events requested are
654 to be enabled where p is however many it supports (which may
655 vary depending on the exact set requested. So if you want to be
656 sure you have set what you think you have, check the contents of
657 these attributes after everything is configured. Drivers may
658 have to buffer any parameters so that they are consistent when
659 a given event type is enabled a future point (and not those for
660 whatever event was previously enabled).
662 What: /sys/.../events/in_accel_thresh_rising_value
663 What: /sys/.../events/in_accel_thresh_falling_value
664 What: /sys/.../events/in_accel_x_raw_thresh_rising_value
665 What: /sys/.../events/in_accel_x_raw_thresh_falling_value
666 What: /sys/.../events/in_accel_y_raw_thresh_rising_value
667 What: /sys/.../events/in_accel_y_raw_thresh_falling_value
668 What: /sys/.../events/in_accel_z_raw_thresh_rising_value
669 What: /sys/.../events/in_accel_z_raw_thresh_falling_value
670 What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
671 What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
672 What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
673 What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
674 What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
675 What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
676 What: /sys/.../events/in_magn_x_raw_thresh_rising_value
677 What: /sys/.../events/in_magn_x_raw_thresh_falling_value
678 What: /sys/.../events/in_magn_y_raw_thresh_rising_value
679 What: /sys/.../events/in_magn_y_raw_thresh_falling_value
680 What: /sys/.../events/in_magn_z_raw_thresh_rising_value
681 What: /sys/.../events/in_magn_z_raw_thresh_falling_value
682 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
683 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
684 What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
685 What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
686 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
687 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
688 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
689 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
690 What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
691 What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
692 What: /sys/.../events/in_voltageY_raw_thresh_rising_value
693 What: /sys/.../events/in_voltageY_raw_thresh_falling_value
694 What: /sys/.../events/in_tempY_raw_thresh_rising_value
695 What: /sys/.../events/in_tempY_raw_thresh_falling_value
696 What: /sys/.../events/in_illuminance0_thresh_falling_value
697 what: /sys/.../events/in_illuminance0_thresh_rising_value
698 what: /sys/.../events/in_proximity0_thresh_falling_value
699 what: /sys/.../events/in_proximity0_thresh_rising_value
700 KernelVersion: 2.6.37
701 Contact: linux-iio@vger.kernel.org
702 Description:
703 Specifies the value of threshold that the device is comparing
704 against for the events enabled by
705 <type>Y[_name]_thresh[_rising|falling]_en.
706 If separate attributes exist for the two directions, but
707 direction is not specified for this attribute, then a single
708 threshold value applies to both directions.
709 The raw or input element of the name indicates whether the
710 value is in raw device units or in processed units (as _raw
711 and _input do on sysfs direct channel read attributes).
713 What: /sys/.../events/in_accel_scale
714 What: /sys/.../events/in_accel_peak_scale
715 What: /sys/.../events/in_anglvel_scale
716 What: /sys/.../events/in_magn_scale
717 What: /sys/.../events/in_rot_from_north_magnetic_scale
718 What: /sys/.../events/in_rot_from_north_true_scale
719 What: /sys/.../events/in_voltage_scale
720 What: /sys/.../events/in_voltage_supply_scale
721 What: /sys/.../events/in_temp_scale
722 What: /sys/.../events/in_illuminance_scale
723 What: /sys/.../events/in_proximity_scale
724 KernelVersion: 3.21
725 Contact: linux-iio@vger.kernel.org
726 Description:
727 Specifies the conversion factor from the standard units
728 to device specific units used to set the event trigger
729 threshold.
731 What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
732 What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
733 What: /sys/.../events/in_accel_x_thresh_either_hysteresis
734 What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
735 What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
736 What: /sys/.../events/in_accel_y_thresh_either_hysteresis
737 What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
738 What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
739 What: /sys/.../events/in_accel_z_thresh_either_hysteresis
740 What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
741 What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
742 What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
743 What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
744 What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
745 What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
746 What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
747 What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
748 What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
749 What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
750 What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
751 What: /sys/.../events/in_magn_x_thresh_either_hysteresis
752 What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
753 What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
754 What: /sys/.../events/in_magn_y_thresh_either_hysteresis
755 What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
756 What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
757 What: /sys/.../events/in_magn_z_thresh_either_hysteresis
758 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
759 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
760 What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
761 What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
762 What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
763 What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
764 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
765 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
766 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
767 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
768 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
769 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
770 What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
771 What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
772 What: /sys/.../events/in_voltageY_thresh_either_hysteresis
773 What: /sys/.../events/in_tempY_thresh_rising_hysteresis
774 What: /sys/.../events/in_tempY_thresh_falling_hysteresis
775 What: /sys/.../events/in_tempY_thresh_either_hysteresis
776 What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
777 what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
778 what: /sys/.../events/in_illuminance0_thresh_either_hysteresis
779 what: /sys/.../events/in_proximity0_thresh_falling_hysteresis
780 what: /sys/.../events/in_proximity0_thresh_rising_hysteresis
781 what: /sys/.../events/in_proximity0_thresh_either_hysteresis
782 KernelVersion: 3.13
783 Contact: linux-iio@vger.kernel.org
784 Description:
785 Specifies the hysteresis of threshold that the device is comparing
786 against for the events enabled by
787 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
788 If separate attributes exist for the two directions, but
789 direction is not specified for this attribute, then a single
790 hysteresis value applies to both directions.
791 For falling events the hysteresis is added to the _value attribute for
792 this event to get the upper threshold for when the event goes back to
793 normal, for rising events the hysteresis is subtracted from the _value
794 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
795 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
796 will get activated once in_voltage0_raw goes above 1200 and will become
797 deactived again once the value falls below 1150.
799 What: /sys/.../events/in_accel_x_raw_roc_rising_value
800 What: /sys/.../events/in_accel_x_raw_roc_falling_value
801 What: /sys/.../events/in_accel_y_raw_roc_rising_value
802 What: /sys/.../events/in_accel_y_raw_roc_falling_value
803 What: /sys/.../events/in_accel_z_raw_roc_rising_value
804 What: /sys/.../events/in_accel_z_raw_roc_falling_value
805 What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
806 What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
807 What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
808 What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
809 What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
810 What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
811 What: /sys/.../events/in_magn_x_raw_roc_rising_value
812 What: /sys/.../events/in_magn_x_raw_roc_falling_value
813 What: /sys/.../events/in_magn_y_raw_roc_rising_value
814 What: /sys/.../events/in_magn_y_raw_roc_falling_value
815 What: /sys/.../events/in_magn_z_raw_roc_rising_value
816 What: /sys/.../events/in_magn_z_raw_roc_falling_value
817 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
818 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
819 What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
820 What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
821 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
822 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
823 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
824 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
825 What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
826 What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
827 What: /sys/.../events/in_voltageY_raw_roc_rising_value
828 What: /sys/.../events/in_voltageY_raw_roc_falling_value
829 What: /sys/.../events/in_tempY_raw_roc_rising_value
830 What: /sys/.../events/in_tempY_raw_roc_falling_value
831 KernelVersion: 2.6.37
832 Contact: linux-iio@vger.kernel.org
833 Description:
834 Specifies the value of rate of change threshold that the
835 device is comparing against for the events enabled by
836 <type>[Y][_name]_roc[_rising|falling]_en.
837 If separate attributes exist for the two directions,
838 but direction is not specified for this attribute,
839 then a single threshold value applies to both directions.
840 The raw or input element of the name indicates whether the
841 value is in raw device units or in processed units (as _raw
842 and _input do on sysfs direct channel read attributes).
844 What: /sys/.../events/in_accel_x_thresh_rising_period
845 What: /sys/.../events/in_accel_x_thresh_falling_period
846 What: /sys/.../events/in_accel_x_roc_rising_period
847 What: /sys/.../events/in_accel_x_roc_falling_period
848 What: /sys/.../events/in_accel_y_thresh_rising_period
849 What: /sys/.../events/in_accel_y_thresh_falling_period
850 What: /sys/.../events/in_accel_y_roc_rising_period
851 What: /sys/.../events/in_accel_y_roc_falling_period
852 What: /sys/.../events/in_accel_z_thresh_rising_period
853 What: /sys/.../events/in_accel_z_thresh_falling_period
854 What: /sys/.../events/in_accel_z_roc_rising_period
855 What: /sys/.../events/in_accel_z_roc_falling_period
856 What: /sys/.../events/in_anglvel_x_thresh_rising_period
857 What: /sys/.../events/in_anglvel_x_thresh_falling_period
858 What: /sys/.../events/in_anglvel_x_roc_rising_period
859 What: /sys/.../events/in_anglvel_x_roc_falling_period
860 What: /sys/.../events/in_anglvel_y_thresh_rising_period
861 What: /sys/.../events/in_anglvel_y_thresh_falling_period
862 What: /sys/.../events/in_anglvel_y_roc_rising_period
863 What: /sys/.../events/in_anglvel_y_roc_falling_period
864 What: /sys/.../events/in_anglvel_z_thresh_rising_period
865 What: /sys/.../events/in_anglvel_z_thresh_falling_period
866 What: /sys/.../events/in_anglvel_z_roc_rising_period
867 What: /sys/.../events/in_anglvel_z_roc_falling_period
868 What: /sys/.../events/in_magn_x_thresh_rising_period
869 What: /sys/.../events/in_magn_x_thresh_falling_period
870 What: /sys/.../events/in_magn_x_roc_rising_period
871 What: /sys/.../events/in_magn_x_roc_falling_period
872 What: /sys/.../events/in_magn_y_thresh_rising_period
873 What: /sys/.../events/in_magn_y_thresh_falling_period
874 What: /sys/.../events/in_magn_y_roc_rising_period
875 What: /sys/.../events/in_magn_y_roc_falling_period
876 What: /sys/.../events/in_magn_z_thresh_rising_period
877 What: /sys/.../events/in_magn_z_thresh_falling_period
878 What: /sys/.../events/in_magn_z_roc_rising_period
879 What: /sys/.../events/in_magn_z_roc_falling_period
880 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
881 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
882 What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
883 What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
884 What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
885 What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
886 What: /sys/.../events/in_rot_from_north_true_roc_rising_period
887 What: /sys/.../events/in_rot_from_north_true_roc_falling_period
888 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
889 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
890 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
891 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
892 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
893 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
894 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
895 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
896 What: /sys/.../events/in_voltageY_supply_thresh_rising_period
897 What: /sys/.../events/in_voltageY_supply_thresh_falling_period
898 What: /sys/.../events/in_voltageY_supply_roc_rising_period
899 What: /sys/.../events/in_voltageY_supply_roc_falling_period
900 What: /sys/.../events/in_voltageY_thresh_rising_period
901 What: /sys/.../events/in_voltageY_thresh_falling_period
902 What: /sys/.../events/in_voltageY_roc_rising_period
903 What: /sys/.../events/in_voltageY_roc_falling_period
904 What: /sys/.../events/in_tempY_thresh_rising_period
905 What: /sys/.../events/in_tempY_thresh_falling_period
906 What: /sys/.../events/in_tempY_roc_rising_period
907 What: /sys/.../events/in_tempY_roc_falling_period
908 What: /sys/.../events/in_accel_x&y&z_mag_falling_period
909 What: /sys/.../events/in_intensity0_thresh_period
910 What: /sys/.../events/in_proximity0_thresh_period
911 What: /sys/.../events/in_activity_still_thresh_rising_period
912 What: /sys/.../events/in_activity_still_thresh_falling_period
913 What: /sys/.../events/in_activity_walking_thresh_rising_period
914 What: /sys/.../events/in_activity_walking_thresh_falling_period
915 What: /sys/.../events/in_activity_jogging_thresh_rising_period
916 What: /sys/.../events/in_activity_jogging_thresh_falling_period
917 What: /sys/.../events/in_activity_running_thresh_rising_period
918 What: /sys/.../events/in_activity_running_thresh_falling_period
919 KernelVersion: 2.6.37
920 Contact: linux-iio@vger.kernel.org
921 Description:
922 Period of time (in seconds) for which the condition must be
923 met before an event is generated. If direction is not
924 specified then this period applies to both directions.
926 What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
927 What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
928 What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
929 KernelVersion: 4.2
930 Contact: linux-iio@vger.kernel.org
931 Description:
932 If a low pass filter can be applied to the event generation
933 this property gives its 3db frequency in Hz.
934 A value of zero disables the filter.
936 What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
937 What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
938 What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
939 KernelVersion: 4.2
940 Contact: linux-iio@vger.kernel.org
941 Description:
942 If a high pass filter can be applied to the event generation
943 this property gives its 3db frequency in Hz.
944 A value of zero disables the filter.
946 What: /sys/.../events/in_activity_still_thresh_rising_en
947 What: /sys/.../events/in_activity_still_thresh_falling_en
948 What: /sys/.../events/in_activity_walking_thresh_rising_en
949 What: /sys/.../events/in_activity_walking_thresh_falling_en
950 What: /sys/.../events/in_activity_jogging_thresh_rising_en
951 What: /sys/.../events/in_activity_jogging_thresh_falling_en
952 What: /sys/.../events/in_activity_running_thresh_rising_en
953 What: /sys/.../events/in_activity_running_thresh_falling_en
954 KernelVersion: 3.19
955 Contact: linux-iio@vger.kernel.org
956 Description:
957 Enables or disables activitity events. Depending on direction
958 an event is generated when sensor ENTERS or LEAVES a given state.
960 What: /sys/.../events/in_activity_still_thresh_rising_value
961 What: /sys/.../events/in_activity_still_thresh_falling_value
962 What: /sys/.../events/in_activity_walking_thresh_rising_value
963 What: /sys/.../events/in_activity_walking_thresh_falling_value
964 What: /sys/.../events/in_activity_jogging_thresh_rising_value
965 What: /sys/.../events/in_activity_jogging_thresh_falling_value
966 What: /sys/.../events/in_activity_running_thresh_rising_value
967 What: /sys/.../events/in_activity_running_thresh_falling_value
968 KernelVersion: 3.19
969 Contact: linux-iio@vger.kernel.org
970 Description:
971 Confidence value (in units as percentage) to be used
972 for deciding when an event should be generated. E.g for
973 running: If the confidence value reported by the sensor
974 is greater than in_activity_running_thresh_rising_value
975 then the sensor ENTERS running state. Conversely, if the
976 confidence value reported by the sensor is lower than
977 in_activity_running_thresh_falling_value then the sensor
978 is LEAVING running state.
980 What: /sys/.../iio:deviceX/events/in_accel_mag_en
981 What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
982 What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
983 What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
984 What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
985 What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
986 What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
987 What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
988 What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
989 What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
990 What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
991 What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
992 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
993 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
994 KernelVersion: 2.6.37
995 Contact: linux-iio@vger.kernel.org
996 Description:
997 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
998 magnitude of the channel is compared to the threshold, not its
999 signed value.
1001 What: /sys/.../events/in_accel_raw_mag_value
1002 What: /sys/.../events/in_accel_x_raw_mag_rising_value
1003 What: /sys/.../events/in_accel_y_raw_mag_rising_value
1004 What: /sys/.../events/in_accel_z_raw_mag_rising_value
1005 KernelVersion: 2.6.37
1006 Contact: linux-iio@vger.kernel.org
1007 Description:
1008 The value to which the magnitude of the channel is compared. If
1009 number or direction is not specified, applies to all channels of
1010 this type.
1012 What: /sys/.../events/in_steps_change_en
1013 KernelVersion: 4.0
1014 Contact: linux-iio@vger.kernel.org
1015 Description:
1016 Event generated when channel passes a threshold on the absolute
1017 change in value. E.g. for steps: a step change event is
1018 generated each time the user takes N steps, where N is set using
1019 in_steps_change_value.
1021 What: /sys/.../events/in_steps_change_value
1022 KernelVersion: 4.0
1023 Contact: linux-iio@vger.kernel.org
1024 Description:
1025 Specifies the value of change threshold that the
1026 device is comparing against for the events enabled by
1027 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1028 if set to 3, a step change event will be generated every 3
1029 steps.
1031 What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1032 KernelVersion: 2.6.35
1033 Contact: linux-iio@vger.kernel.org
1034 Description:
1035 The name of the trigger source being used, as per string given
1036 in /sys/class/iio/triggerY/name.
1038 What: /sys/bus/iio/devices/iio:deviceX/buffer/length
1039 KernelVersion: 2.6.35
1040 Contact: linux-iio@vger.kernel.org
1041 Description:
1042 Number of scans contained by the buffer.
1044 What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
1045 KernelVersion: 2.6.35
1046 Contact: linux-iio@vger.kernel.org
1047 Description:
1048 Actually start the buffer capture up. Will start trigger
1049 if first device and appropriate.
1051 What: /sys/bus/iio/devices/iio:deviceX/scan_elements
1052 KernelVersion: 2.6.37
1053 Contact: linux-iio@vger.kernel.org
1054 Description:
1055 Directory containing interfaces for elements that will be
1056 captured for a single triggered sample set in the buffer.
1058 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
1059 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
1060 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
1061 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1062 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1063 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1064 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
1065 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
1066 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
1067 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1068 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1069 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1070 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1071 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
1072 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1073 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
1074 What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1075 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1076 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1077 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1078 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1079 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
1080 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
1081 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
1082 What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
1083 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1084 What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
1085 KernelVersion: 2.6.37
1086 Contact: linux-iio@vger.kernel.org
1087 Description:
1088 Scan element control for triggered data capture.
1090 What: /sys/.../iio:deviceX/scan_elements/in_accel_type
1091 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
1092 What: /sys/.../iio:deviceX/scan_elements/in_magn_type
1093 What: /sys/.../iio:deviceX/scan_elements/in_incli_type
1094 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
1095 What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
1096 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1097 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1098 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1099 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1100 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1101 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
1102 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
1103 What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
1104 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1105 What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
1106 KernelVersion: 2.6.37
1107 Contact: linux-iio@vger.kernel.org
1108 Description:
1109 Description of the scan element data storage within the buffer
1110 and hence the form in which it is read from user-space.
1111 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1112 be or le specifies big or little endian. s or u specifies if
1113 signed (2's complement) or unsigned. bits is the number of bits
1114 of data and storagebits is the space (after padding) that it
1115 occupies in the buffer. shift if specified, is the shift that
1116 needs to be applied prior to masking out unused bits. Some
1117 devices put their data in the middle of the transferred elements
1118 with additional information on both sides. Note that some
1119 devices will have additional information in the unused bits
1120 so to get a clean value, the bits value must be used to mask
1121 the buffer output value appropriately. The storagebits value
1122 also specifies the data alignment. So s48/64>>2 will be a
1123 signed 48 bit integer stored in a 64 bit location aligned to
1124 a 64 bit boundary. To obtain the clean value, shift right 2
1125 and apply a mask to zero the top 16 bits of the result.
1126 For other storage combinations this attribute will be extended
1127 appropriately.
1129 What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1130 KernelVersion: 2.6.37
1131 Contact: linux-iio@vger.kernel.org
1132 Description:
1133 If the type parameter can take one of a small set of values,
1134 this attribute lists them.
1136 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1137 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1138 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1139 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1140 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1141 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1142 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1143 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1144 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1145 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1146 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1147 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1148 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1149 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1150 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1151 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1152 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1153 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1154 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1155 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1156 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1157 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1158 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1159 What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
1160 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1161 What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
1162 KernelVersion: 2.6.37
1163 Contact: linux-iio@vger.kernel.org
1164 Description:
1165 A single positive integer specifying the position of this
1166 scan element in the buffer. Note these are not dependent on
1167 what is enabled and may not be contiguous. Thus for user-space
1168 to establish the full layout these must be used in conjunction
1169 with all _en attributes to establish which channels are present,
1170 and the relevant _type attributes to establish the data storage
1171 format.
1173 What: /sys/.../iio:deviceX/in_activity_still_input
1174 What: /sys/.../iio:deviceX/in_activity_walking_input
1175 What: /sys/.../iio:deviceX/in_activity_jogging_input
1176 What: /sys/.../iio:deviceX/in_activity_running_input
1177 KernelVersion: 3.19
1178 Contact: linux-iio@vger.kernel.org
1179 Description:
1180 This attribute is used to read the confidence for an activity
1181 expressed in units as percentage.
1183 What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1184 KernelVersion: 2.6.38
1185 Contact: linux-iio@vger.kernel.org
1186 Description:
1187 This attribute is used to read the amount of quadrature error
1188 present in the device at a given time.
1190 What: /sys/.../iio:deviceX/in_accelX_power_mode
1191 KernelVersion: 3.11
1192 Contact: linux-iio@vger.kernel.org
1193 Description:
1194 Specifies the chip power mode.
1195 low_noise: reduce noise level from ADC,
1196 low_power: enable low current consumption.
1197 For a list of available output power modes read
1198 in_accel_power_mode_available.
1200 What: /sys/.../iio:deviceX/in_energy_input
1201 What: /sys/.../iio:deviceX/in_energy_raw
1202 KernelVersion: 4.0
1203 Contact: linux-iio@vger.kernel.org
1204 Description:
1205 This attribute is used to read the energy value reported by the
1206 device (e.g.: human activity sensors report energy burnt by the
1207 user). Units after application of scale are Joules.
1209 What: /sys/.../iio:deviceX/in_distance_input
1210 What: /sys/.../iio:deviceX/in_distance_raw
1211 KernelVersion: 4.0
1212 Contact: linux-iio@vger.kernel.org
1213 Description:
1214 This attribute is used to read the distance covered by the user
1215 since the last reboot while activated. Units after application
1216 of scale are meters.
1218 What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1219 KernelVersion: 3.4.0
1220 Contact: linux-iio@vger.kernel.org
1221 Description:
1222 Writing '1' stores the current device configuration into
1223 on-chip EEPROM. After power-up or chip reset the device will
1224 automatically load the saved configuration.
1226 What: /sys/.../iio:deviceX/in_proximity_raw
1227 What: /sys/.../iio:deviceX/in_proximity_input
1228 What: /sys/.../iio:deviceX/in_proximityY_raw
1229 KernelVersion: 3.4
1230 Contact: linux-iio@vger.kernel.org
1231 Description:
1232 Proximity measurement indicating that some
1233 object is near the sensor, usually be observing
1234 reflectivity of infrared or ultrasound emitted.
1235 Often these sensors are unit less and as such conversion
1236 to SI units is not possible. Higher proximity measurements
1237 indicate closer objects, and vice versa.
1239 What: /sys/.../iio:deviceX/in_illuminance_input
1240 What: /sys/.../iio:deviceX/in_illuminance_raw
1241 What: /sys/.../iio:deviceX/in_illuminanceY_input
1242 What: /sys/.../iio:deviceX/in_illuminanceY_raw
1243 What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1244 What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1245 What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1246 KernelVersion: 3.4
1247 Contact: linux-iio@vger.kernel.org
1248 Description:
1249 Illuminance measurement, units after application of scale
1250 and offset are lux.
1252 What: /sys/.../iio:deviceX/in_intensityY_raw
1253 What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1254 What: /sys/.../iio:deviceX/in_intensityY_both_raw
1255 KernelVersion: 3.4
1256 Contact: linux-iio@vger.kernel.org
1257 Description:
1258 Unit-less light intensity. Modifiers both and ir indicate
1259 that measurements contains visible and infrared light
1260 components or just infrared light, respectively.
1262 What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1263 What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1264 What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1265 What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1266 What: /sys/.../iio:deviceX/in_illuminance_integration_time
1267 KernelVersion: 3.12
1268 Contact: linux-iio@vger.kernel.org
1269 Description:
1270 This attribute is used to get/set the integration time in
1271 seconds.
1273 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1274 KernelVersion: 4.0
1275 Contact: linux-iio@vger.kernel.org
1276 Description:
1277 Number of seconds in which to compute speed.
1279 What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1280 KernelVersion: 3.15
1281 Contact: linux-iio@vger.kernel.org
1282 Description:
1283 Raw value of quaternion components using a format
1284 x y z w. Here x, y, and z component represents the axis about
1285 which a rotation will occur and w component represents the
1286 amount of rotation.
1288 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1289 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1290 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1291 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1292 KernelVersion: 3.15
1293 Contact: linux-iio@vger.kernel.org
1294 Description:
1295 Raw value of rotation from true/magnetic north measured with
1296 or without compensation from tilt sensors.
1298 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1299 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1300 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1301 KernelVersion: 3.18
1302 Contact: linux-iio@vger.kernel.org
1303 Description:
1304 Raw current measurement from channel X. Units are in milliamps
1305 after application of scale and offset. If no offset or scale is
1306 present, output should be considered as processed with the
1307 unit in milliamps.
1309 Channels with 'i' and 'q' modifiers always exist in pairs and both
1310 channels refer to the same signal. The 'i' channel contains the in-phase
1311 component of the signal while the 'q' channel contains the quadrature
1312 component.
1314 What: /sys/.../iio:deviceX/in_energy_en
1315 What: /sys/.../iio:deviceX/in_distance_en
1316 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1317 What: /sys/.../iio:deviceX/in_steps_en
1318 KernelVersion: 3.19
1319 Contact: linux-iio@vger.kernel.org
1320 Description:
1321 Activates a device feature that runs in firmware/hardware.
1322 E.g. for steps: the pedometer saves power while not used;
1323 when activated, it will count the steps taken by the user in
1324 firmware and export them through in_steps_input.
1326 What: /sys/.../iio:deviceX/in_steps_input
1327 KernelVersion: 3.19
1328 Contact: linux-iio@vger.kernel.org
1329 Description:
1330 This attribute is used to read the number of steps taken by the user
1331 since the last reboot while activated.
1333 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1334 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1335 KernelVersion: 3.19
1336 Contact: linux-iio@vger.kernel.org
1337 Description:
1338 This attribute is used to read the current speed value of the
1339 user (which is the norm or magnitude of the velocity vector).
1340 Units after application of scale are m/s.
1342 What: /sys/.../iio:deviceX/in_steps_debounce_count
1343 KernelVersion: 4.0
1344 Contact: linux-iio@vger.kernel.org
1345 Description:
1346 Specifies the number of steps that must occur within
1347 in_steps_filter_debounce_time for the pedometer to decide the
1348 consumer is making steps.
1350 What: /sys/.../iio:deviceX/in_steps_debounce_time
1351 KernelVersion: 4.0
1352 Contact: linux-iio@vger.kernel.org
1353 Description:
1354 Specifies number of seconds in which we compute the steps
1355 that occur in order to decide if the consumer is making steps.
1357 What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
1358 KernelVersion: 4.2
1359 Contact: linux-iio@vger.kernel.org
1360 Description:
1361 A single positive integer specifying the maximum number of scan
1362 elements to wait for.
1363 Poll will block until the watermark is reached.
1364 Blocking read will wait until the minimum between the requested
1365 read amount or the low water mark is available.
1366 Non-blocking read will retrieve the available samples from the
1367 buffer even if there are less samples then watermark level. This
1368 allows the application to block on poll with a timeout and read
1369 the available samples after the timeout expires and thus have a
1370 maximum delay guarantee.
1372 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1373 KernelVersion: 4.2
1374 Contact: linux-iio@vger.kernel.org
1375 Description:
1376 A read-only boolean value that indicates if the hardware fifo is
1377 currently enabled or disabled. If the device does not have a
1378 hardware fifo this entry is not present.
1379 The hardware fifo is enabled when the buffer is enabled if the
1380 current hardware fifo watermark level is set and other current
1381 device settings allows it (e.g. if a trigger is set that samples
1382 data differently that the hardware fifo does then hardware fifo
1383 will not enabled).
1384 If the hardware fifo is enabled and the level of the hardware
1385 fifo reaches the hardware fifo watermark level the device will
1386 flush its hardware fifo to the device buffer. Doing a non
1387 blocking read on the device when no samples are present in the
1388 device buffer will also force a flush.
1389 When the hardware fifo is enabled there is no need to use a
1390 trigger to use buffer mode since the watermark settings
1391 guarantees that the hardware fifo is flushed to the device
1392 buffer.
1394 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1395 KernelVersion: 4.2
1396 Contact: linux-iio@vger.kernel.org
1397 Description:
1398 Read-only entry that contains a single integer specifying the
1399 current watermark level for the hardware fifo. If the device
1400 does not have a hardware fifo this entry is not present.
1401 The watermark level for the hardware fifo is set by the driver
1402 based on the value set by the user in buffer/watermark but
1403 taking into account hardware limitations (e.g. most hardware
1404 buffers are limited to 32-64 samples, some hardware buffers
1405 watermarks are fixed or have minimum levels). A value of 0
1406 means that the hardware watermark is unset.
1408 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1409 KernelVersion: 4.2
1410 Contact: linux-iio@vger.kernel.org
1411 Description:
1412 A single positive integer specifying the minimum watermark level
1413 for the hardware fifo of this device. If the device does not
1414 have a hardware fifo this entry is not present.
1415 If the user sets buffer/watermark to a value less than this one,
1416 then the hardware watermark will remain unset.
1418 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1419 KernelVersion: 4.2
1420 Contact: linux-iio@vger.kernel.org
1421 Description:
1422 A single positive integer specifying the maximum watermark level
1423 for the hardware fifo of this device. If the device does not
1424 have a hardware fifo this entry is not present.
1425 If the user sets buffer/watermark to a value greater than this
1426 one, then the hardware watermark will be capped at this value.
1428 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1429 KernelVersion: 4.2
1430 Contact: linux-iio@vger.kernel.org
1431 Description:
1432 A list of positive integers specifying the available watermark
1433 levels for the hardware fifo. This entry is optional and if it
1434 is not present it means that all the values between
1435 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1436 If the user sets buffer/watermark to a value greater than
1437 hwfifo_watermak_min but not equal to any of the values in this
1438 list, the driver will chose an appropriate value for the
1439 hardware fifo watermark level.
1441 What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1442 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1443 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1444 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1445 KernelVersion: 4.1
1446 Contact: linux-iio@vger.kernel.org
1447 Description:
1448 The emissivity ratio of the surface in the field of view of the
1449 contactless temperature sensor. Emissivity varies from 0 to 1,
1450 with 1 being the emissivity of a black body.
1452 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1453 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1454 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1455 KernelVersion: 4.2
1456 Contact: linux-iio@vger.kernel.org
1457 Description:
1458 Hardware applied number of measurements for acquiring one
1459 data point. The HW will do <type>[_name]_oversampling_ratio
1460 measurements and return the average value as output data. Each
1461 value resulted from <type>[_name]_oversampling_ratio measurements
1462 is considered as one sample for <type>[_name]_sampling_frequency.
1464 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1465 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1466 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1467 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1468 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1469 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1470 KernelVersion: 4.3
1471 Contact: linux-iio@vger.kernel.org
1472 Description:
1473 Raw (unscaled no offset etc.) percentage reading of a substance.
1475 What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1476 What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1477 What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1478 What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1479 KernelVersion: 4.3
1480 Contact: linux-iio@vger.kernel.org
1481 Description:
1482 Raw (unscaled no offset etc.) resistance reading that can be processed
1483 into an ohm value.
1485 What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1486 KernelVersion: 4.1.0
1487 Contact: linux-iio@vger.kernel.org
1488 Description:
1489 '1' (enable) or '0' (disable) specifying the enable
1490 of heater function. Same reading values apply
1491 This ABI is especially applicable for humidity sensors
1492 to heatup the device and get rid of any condensation
1493 in some humidity environment