| blob | 530809ccfacf336710a40cf501401ccae0bb6ae4 |
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/timestamp_clock
36 KernelVersion: 4.5
37 Contact: linux-iio@vger.kernel.org
38 Description:
39 String identifying current posix clock used to timestamp
40 buffered samples and events for device X.
42 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
43 What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
44 What: /sys/bus/iio/devices/triggerX/sampling_frequency
45 KernelVersion: 2.6.35
46 Contact: linux-iio@vger.kernel.org
47 Description:
48 Some devices have internal clocks. This parameter sets the
49 resulting sampling frequency. In many devices this
50 parameter has an effect on input filters etc. rather than
51 simply controlling when the input is sampled. As this
52 effects data ready triggers, hardware buffers and the sysfs
53 direct access interfaces, it may be found in any of the
54 relevant directories. If it effects all of the above
55 then it is to be found in the base device directory.
57 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
58 What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
59 What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
60 KernelVersion: 2.6.35
61 Contact: linux-iio@vger.kernel.org
62 Description:
63 When the internal sampling clock can only take a small
64 discrete set of values, this file lists those available.
66 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
67 KernelVersion: 2.6.38
68 Contact: linux-iio@vger.kernel.org
69 Description:
70 Hardware dependent ADC oversampling. Controls the sampling ratio
71 of the digital filter if available.
73 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
74 KernelVersion: 2.6.38
75 Contact: linux-iio@vger.kernel.org
76 Description:
77 Hardware dependent values supported by the oversampling filter.
79 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
80 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
81 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
82 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
83 KernelVersion: 2.6.35
84 Contact: linux-iio@vger.kernel.org
85 Description:
86 Raw (unscaled no bias removal etc.) voltage measurement from
87 channel Y. In special cases where the channel does not
88 correspond to externally available input one of the named
89 versions may be used. The number must always be specified and
90 unique to allow association with event codes. Units after
91 application of scale and offset are millivolts.
93 Channels with 'i' and 'q' modifiers always exist in pairs and both
94 channels refer to the same signal. The 'i' channel contains the in-phase
95 component of the signal while the 'q' channel contains the quadrature
96 component.
98 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
99 KernelVersion: 2.6.35
100 Contact: linux-iio@vger.kernel.org
101 Description:
102 Raw (unscaled) differential voltage measurement equivalent to
103 channel Y - channel Z where these channel numbers apply to the
104 physically equivalent inputs when non differential readings are
105 separately available. In differential only parts, then all that
106 is required is a consistent labeling. Units after application
107 of scale and offset are millivolts.
109 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
110 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
111 KernelVersion: 3.17
112 Contact: linux-iio@vger.kernel.org
113 Description:
114 Raw (unscaled no bias removal etc.) current measurement from
115 channel Y. In special cases where the channel does not
116 correspond to externally available input one of the named
117 versions may be used. The number must always be specified and
118 unique to allow association with event codes. Units after
119 application of scale and offset are milliamps.
121 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
122 KernelVersion: 3.2
123 Contact: linux-iio@vger.kernel.org
124 Description:
125 Raw capacitance measurement from channel Y. Units after
126 application of scale and offset are nanofarads.
128 What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
129 KernelVersion: 3.2
130 Contact: linux-iio@vger.kernel.org
131 Description:
132 Raw differential capacitance measurement equivalent to
133 channel Y - channel Z where these channel numbers apply to the
134 physically equivalent inputs when non differential readings are
135 separately available. In differential only parts, then all that
136 is required is a consistent labeling. Units after application
137 of scale and offset are nanofarads.
139 What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
140 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
141 What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
142 What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
143 What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
144 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
145 KernelVersion: 2.6.35
146 Contact: linux-iio@vger.kernel.org
147 Description:
148 Raw (unscaled no bias removal etc.) temperature measurement.
149 If an axis is specified it generally means that the temperature
150 sensor is associated with one part of a compound device (e.g.
151 a gyroscope axis). The ambient and object modifiers distinguish
152 between ambient (reference) and distant temperature for contact-
153 less measurements. Units after application of scale and offset
154 are milli degrees Celsius.
156 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
157 KernelVersion: 2.6.38
158 Contact: linux-iio@vger.kernel.org
159 Description:
160 Scaled temperature measurement in milli degrees Celsius.
162 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
163 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
164 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
165 KernelVersion: 2.6.35
166 Contact: linux-iio@vger.kernel.org
167 Description:
168 Acceleration in direction x, y or z (may be arbitrarily assigned
169 but should match other such assignments on device).
170 Has all of the equivalent parameters as per voltageY. Units
171 after application of scale and offset are m/s^2.
173 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
174 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
175 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
176 KernelVersion: 4.11
177 Contact: linux-iio@vger.kernel.org
178 Description:
179 Gravity in direction x, y or z (may be arbitrarily assigned
180 but should match other such assignments on device).
181 Units after application of scale and offset are m/s^2.
183 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
184 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
185 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
186 KernelVersion: 2.6.35
187 Contact: linux-iio@vger.kernel.org
188 Description:
189 Angular velocity about axis x, y or z (may be arbitrarily
190 assigned). Has all the equivalent parameters as per voltageY.
191 Units after application of scale and offset are radians per
192 second.
194 What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
195 What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
196 What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
197 KernelVersion: 2.6.35
198 Contact: linux-iio@vger.kernel.org
199 Description:
200 Inclination raw reading about axis x, y or z (may be
201 arbitrarily assigned). Data converted by application of offset
202 and scale to degrees.
204 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
205 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
206 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
207 KernelVersion: 2.6.35
208 Contact: linux-iio@vger.kernel.org
209 Description:
210 Magnetic field along axis x, y or z (may be arbitrarily
211 assigned). Data converted by application of offset
212 then scale to Gauss.
214 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
215 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
216 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
217 KernelVersion: 2.6.36
218 Contact: linux-iio@vger.kernel.org
219 Description:
220 Highest value since some reset condition. These
221 attributes allow access to this and are otherwise
222 the direct equivalent of the <type>Y[_name]_raw attributes.
224 What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
225 KernelVersion: 2.6.36
226 Contact: linux-iio@vger.kernel.org
227 Description:
228 A computed peak value based on the sum squared magnitude of
229 the underlying value in the specified directions.
231 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
232 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
233 KernelVersion: 3.8
234 Contact: linux-iio@vger.kernel.org
235 Description:
236 Raw pressure measurement from channel Y. Units after
237 application of scale and offset are kilopascal.
239 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
240 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
241 KernelVersion: 3.8
242 Contact: linux-iio@vger.kernel.org
243 Description:
244 Scaled pressure measurement from channel Y, in kilopascal.
246 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
247 KernelVersion: 3.14
248 Contact: linux-iio@vger.kernel.org
249 Description:
250 Raw humidity measurement of air. Units after application of
251 scale and offset are milli percent.
253 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
254 KernelVersion: 3.14
255 Contact: linux-iio@vger.kernel.org
256 Description:
257 Scaled humidity measurement in milli percent.
259 What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
260 KernelVersion: 3.5
261 Contact: linux-iio@vger.kernel.org
262 Description:
263 Averaged raw measurement from channel X. The number of values
264 used for averaging is device specific. The converting rules for
265 normal raw values also applies to the averaged raw values.
267 What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
268 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
269 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
270 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
271 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
272 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
273 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
274 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
275 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
276 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
277 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
278 What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
279 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
280 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
281 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
282 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
283 What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
284 What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
285 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
286 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
287 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
288 What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
289 What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
290 KernelVersion: 2.6.35
291 Contact: linux-iio@vger.kernel.org
292 Description:
293 If known for a device, offset to be added to <type>[Y]_raw prior
294 to scaling by <type>[Y]_scale in order to obtain value in the
295 <type> units as specified in <type>[Y]_raw documentation.
296 Not present if the offset is always 0 or unknown. If Y or
297 axis <x|y|z> is not present, then the offset applies to all
298 in channels of <type>.
299 May be writable if a variable offset can be applied on the
300 device. Note that this is different to calibbias which
301 is for devices (or drivers) that apply offsets to compensate
302 for variation between different instances of the part, typically
303 adjusted by using some hardware supported calibration procedure.
304 Calibbias is applied internally, offset is applied in userspace
305 to the _raw output.
307 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
308 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
309 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
310 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
311 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
312 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
313 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
314 What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
315 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
316 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
317 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
318 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
319 What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
320 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
321 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
322 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
323 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
324 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
325 What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
326 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
327 What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
328 What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
329 What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
330 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
331 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
332 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
333 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
334 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
335 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
336 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
337 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
338 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
339 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
340 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
341 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
342 What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
343 KernelVersion: 2.6.35
344 Contact: linux-iio@vger.kernel.org
345 Description:
346 If known for a device, scale to be applied to <type>Y[_name]_raw
347 post addition of <type>[Y][_name]_offset in order to obtain the
348 measured value in <type> units as specified in
349 <type>[Y][_name]_raw documentation. If shared across all in
350 channels then Y and <x|y|z> are not present and the value is
351 called <type>[Y][_name]_scale. The peak modifier means this
352 value is applied to <type>Y[_name]_peak_raw values.
354 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
355 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
356 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
357 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
358 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
359 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
360 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
361 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
362 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
363 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
364 KernelVersion: 2.6.35
365 Contact: linux-iio@vger.kernel.org
366 Description:
367 Hardware applied calibration offset (assumed to fix production
368 inaccuracies).
370 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
371 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
372 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
373 What /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
374 What /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
375 What /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
376 What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
377 What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
378 What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
379 What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
380 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
381 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
382 What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
383 what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
384 what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
385 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
386 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
387 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
388 KernelVersion: 2.6.35
389 Contact: linux-iio@vger.kernel.org
390 Description:
391 Hardware applied calibration scale factor (assumed to fix
392 production inaccuracies). If shared across all channels,
393 <type>_calibscale is used.
395 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
396 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
397 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
398 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
399 KernelVersion: 4.0
400 Contact: linux-iio@vger.kernel.org
401 Description:
402 Gender of the user (e.g.: male, female) used by some pedometers
403 to compute the stride length, distance, speed and activity
404 type.
406 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
407 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
408 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
409 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
410 KernelVersion: 4.0
411 Contact: linux-iio@vger.kernel.org
412 Description:
413 Lists all available gender values (e.g.: male, female).
415 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
416 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
417 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
418 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
419 KernelVersion: 3.19
420 Contact: linux-iio@vger.kernel.org
421 Description:
422 Height of the user (in meters) used by some pedometers
423 to compute the stride length, distance, speed and activity
424 type.
426 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
427 KernelVersion: 4.0
428 Contact: linux-iio@vger.kernel.org
429 Description:
430 Weight of the user (in kg). It is needed by some pedometers
431 to compute the calories burnt by the user.
433 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
434 What: /sys/.../iio:deviceX/in_anglvel_scale_available
435 What: /sys/.../iio:deviceX/in_magn_scale_available
436 What: /sys/.../iio:deviceX/in_illuminance_scale_available
437 What: /sys/.../iio:deviceX/in_intensity_scale_available
438 What: /sys/.../iio:deviceX/in_proximity_scale_available
439 What: /sys/.../iio:deviceX/in_voltageX_scale_available
440 What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
441 What: /sys/.../iio:deviceX/out_voltageX_scale_available
442 What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
443 What: /sys/.../iio:deviceX/in_capacitance_scale_available
444 What: /sys/.../iio:deviceX/in_pressure_scale_available
445 What: /sys/.../iio:deviceX/in_pressureY_scale_available
446 KernelVersion: 2.6.35
447 Contact: linux-iio@vger.kernel.org
448 Description:
449 If a discrete set of scale values is available, they
450 are listed in this attribute.
452 What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
453 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
454 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
455 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
456 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
457 KernelVersion: 2.6.35
458 Contact: linux-iio@vger.kernel.org
459 Description:
460 Hardware applied gain factor. If shared across all channels,
461 <type>_hardwaregain is used.
463 What: /sys/.../in_accel_filter_low_pass_3db_frequency
464 What: /sys/.../in_magn_filter_low_pass_3db_frequency
465 What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
466 KernelVersion: 3.2
467 Contact: linux-iio@vger.kernel.org
468 Description:
469 If a known or controllable low pass filter is applied
470 to the underlying data channel, then this parameter
471 gives the 3dB frequency of the filter in Hz.
473 What: /sys/.../in_accel_filter_high_pass_3db_frequency
474 What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
475 What: /sys/.../in_magn_filter_high_pass_3db_frequency
476 KernelVersion: 4.2
477 Contact: linux-iio@vger.kernel.org
478 Description:
479 If a known or controllable high pass filter is applied
480 to the underlying data channel, then this parameter
481 gives the 3dB frequency of the filter in Hz.
483 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
484 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
485 KernelVersion: 2.6.37
486 Contact: linux-iio@vger.kernel.org
487 Description:
488 Raw (unscaled, no bias etc.) output voltage for
489 channel Y. The number must always be specified and
490 unique if the output corresponds to a single channel.
491 While DAC like devices typically use out_voltage,
492 a continuous frequency generating device, such as
493 a DDS or PLL should use out_altvoltage.
495 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
496 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
497 KernelVersion: 2.6.37
498 Contact: linux-iio@vger.kernel.org
499 Description:
500 Raw (unscaled, no bias etc.) output voltage for an aggregate of
501 channel Y, channel Z, etc. This interface is available in cases
502 where a single output sets the value for multiple channels
503 simultaneously.
505 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
506 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
507 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
508 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
509 KernelVersion: 2.6.38
510 Contact: linux-iio@vger.kernel.org
511 Description:
512 Specifies the output powerdown mode.
513 DAC output stage is disconnected from the amplifier and
514 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
515 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
516 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
517 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
518 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
519 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
520 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
521 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
522 three_state: left floating.
523 For a list of available output power down options read
524 outX_powerdown_mode_available. If Y is not present the
525 mode is shared across all outputs.
527 What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
528 What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
529 What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
530 What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
531 KernelVersion: 2.6.38
532 Contact: linux-iio@vger.kernel.org
533 Description:
534 Lists all available output power down modes.
535 If Y is not present the mode is shared across all outputs.
537 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
538 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
539 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
540 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
541 KernelVersion: 2.6.38
542 Contact: linux-iio@vger.kernel.org
543 Description:
544 Writing 1 causes output Y to enter the power down mode specified
545 by the corresponding outY_powerdown_mode. DAC output stage is
546 disconnected from the amplifier. Clearing returns to normal
547 operation. Y may be suppressed if all outputs are controlled
548 together.
550 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
551 KernelVersion: 3.4.0
552 Contact: linux-iio@vger.kernel.org
553 Description:
554 Output frequency for channel Y in Hz. The number must always be
555 specified and unique if the output corresponds to a single
556 channel.
558 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
559 KernelVersion: 3.4.0
560 Contact: linux-iio@vger.kernel.org
561 Description:
562 Phase in radians of one frequency/clock output Y
563 (out_altvoltageY) relative to another frequency/clock output
564 (out_altvoltageZ) of the device X. The number must always be
565 specified and unique if the output corresponds to a single
566 channel.
568 What: /sys/bus/iio/devices/iio:deviceX/events
569 KernelVersion: 2.6.35
570 Contact: linux-iio@vger.kernel.org
571 Description:
572 Configuration of which hardware generated events are passed up
573 to user-space.
575 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
576 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
577 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
578 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
579 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
580 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
581 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
582 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
583 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
584 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
585 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
586 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
587 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
588 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
589 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
590 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
591 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
592 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
593 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
594 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
595 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
596 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
597 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
598 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
599 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
600 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
601 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
602 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
603 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
604 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
605 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
606 What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
607 What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
608 KernelVersion: 2.6.37
609 Contact: linux-iio@vger.kernel.org
610 Description:
611 Event generated when channel passes a threshold in the specified
612 (_rising|_falling) direction. If the direction is not specified,
613 then either the device will report an event which ever direction
614 a single threshold value is passed in (e.g.
615 <type>[Y][_name]_<raw|input>_thresh_value) or
616 <type>[Y][_name]_<raw|input>_thresh_rising_value and
617 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
618 different values, but the device can only enable both thresholds
619 or neither.
620 Note the driver will assume the last p events requested are
621 to be enabled where p is how many it supports (which may vary
622 depending on the exact set requested. So if you want to be
623 sure you have set what you think you have, check the contents of
624 these attributes after everything is configured. Drivers may
625 have to buffer any parameters so that they are consistent when
626 a given event type is enabled at a future point (and not those for
627 whatever event was previously enabled).
629 What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
630 What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
631 What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
632 What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
633 What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
634 What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
635 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
636 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
637 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
638 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
639 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
640 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
641 What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
642 What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
643 What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
644 What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
645 What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
646 What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
647 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
648 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
649 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
650 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
651 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
652 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
653 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
654 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
655 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
656 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
657 What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
658 What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
659 What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
660 What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
661 KernelVersion: 2.6.37
662 Contact: linux-iio@vger.kernel.org
663 Description:
664 Event generated when channel passes a threshold on the rate of
665 change (1st differential) in the specified (_rising|_falling)
666 direction. If the direction is not specified, then either the
667 device will report an event which ever direction a single
668 threshold value is passed in (e.g.
669 <type>[Y][_name]_<raw|input>_roc_value) or
670 <type>[Y][_name]_<raw|input>_roc_rising_value and
671 <type>[Y][_name]_<raw|input>_roc_falling_value may take
672 different values, but the device can only enable both rate of
673 change thresholds or neither.
674 Note the driver will assume the last p events requested are
675 to be enabled where p is however many it supports (which may
676 vary depending on the exact set requested. So if you want to be
677 sure you have set what you think you have, check the contents of
678 these attributes after everything is configured. Drivers may
679 have to buffer any parameters so that they are consistent when
680 a given event type is enabled a future point (and not those for
681 whatever event was previously enabled).
683 What: /sys/.../events/in_accel_thresh_rising_value
684 What: /sys/.../events/in_accel_thresh_falling_value
685 What: /sys/.../events/in_accel_x_raw_thresh_rising_value
686 What: /sys/.../events/in_accel_x_raw_thresh_falling_value
687 What: /sys/.../events/in_accel_y_raw_thresh_rising_value
688 What: /sys/.../events/in_accel_y_raw_thresh_falling_value
689 What: /sys/.../events/in_accel_z_raw_thresh_rising_value
690 What: /sys/.../events/in_accel_z_raw_thresh_falling_value
691 What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
692 What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
693 What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
694 What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
695 What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
696 What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
697 What: /sys/.../events/in_magn_x_raw_thresh_rising_value
698 What: /sys/.../events/in_magn_x_raw_thresh_falling_value
699 What: /sys/.../events/in_magn_y_raw_thresh_rising_value
700 What: /sys/.../events/in_magn_y_raw_thresh_falling_value
701 What: /sys/.../events/in_magn_z_raw_thresh_rising_value
702 What: /sys/.../events/in_magn_z_raw_thresh_falling_value
703 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
704 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
705 What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
706 What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
707 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
708 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
709 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
710 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
711 What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
712 What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
713 What: /sys/.../events/in_voltageY_raw_thresh_rising_value
714 What: /sys/.../events/in_voltageY_raw_thresh_falling_value
715 What: /sys/.../events/in_tempY_raw_thresh_rising_value
716 What: /sys/.../events/in_tempY_raw_thresh_falling_value
717 What: /sys/.../events/in_illuminance0_thresh_falling_value
718 what: /sys/.../events/in_illuminance0_thresh_rising_value
719 what: /sys/.../events/in_proximity0_thresh_falling_value
720 what: /sys/.../events/in_proximity0_thresh_rising_value
721 KernelVersion: 2.6.37
722 Contact: linux-iio@vger.kernel.org
723 Description:
724 Specifies the value of threshold that the device is comparing
725 against for the events enabled by
726 <type>Y[_name]_thresh[_rising|falling]_en.
727 If separate attributes exist for the two directions, but
728 direction is not specified for this attribute, then a single
729 threshold value applies to both directions.
730 The raw or input element of the name indicates whether the
731 value is in raw device units or in processed units (as _raw
732 and _input do on sysfs direct channel read attributes).
734 What: /sys/.../events/in_accel_scale
735 What: /sys/.../events/in_accel_peak_scale
736 What: /sys/.../events/in_anglvel_scale
737 What: /sys/.../events/in_magn_scale
738 What: /sys/.../events/in_rot_from_north_magnetic_scale
739 What: /sys/.../events/in_rot_from_north_true_scale
740 What: /sys/.../events/in_voltage_scale
741 What: /sys/.../events/in_voltage_supply_scale
742 What: /sys/.../events/in_temp_scale
743 What: /sys/.../events/in_illuminance_scale
744 What: /sys/.../events/in_proximity_scale
745 KernelVersion: 3.21
746 Contact: linux-iio@vger.kernel.org
747 Description:
748 Specifies the conversion factor from the standard units
749 to device specific units used to set the event trigger
750 threshold.
752 What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
753 What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
754 What: /sys/.../events/in_accel_x_thresh_either_hysteresis
755 What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
756 What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
757 What: /sys/.../events/in_accel_y_thresh_either_hysteresis
758 What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
759 What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
760 What: /sys/.../events/in_accel_z_thresh_either_hysteresis
761 What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
762 What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
763 What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
764 What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
765 What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
766 What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
767 What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
768 What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
769 What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
770 What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
771 What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
772 What: /sys/.../events/in_magn_x_thresh_either_hysteresis
773 What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
774 What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
775 What: /sys/.../events/in_magn_y_thresh_either_hysteresis
776 What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
777 What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
778 What: /sys/.../events/in_magn_z_thresh_either_hysteresis
779 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
780 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
781 What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
782 What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
783 What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
784 What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
785 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
786 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
787 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
788 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
789 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
790 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
791 What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
792 What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
793 What: /sys/.../events/in_voltageY_thresh_either_hysteresis
794 What: /sys/.../events/in_tempY_thresh_rising_hysteresis
795 What: /sys/.../events/in_tempY_thresh_falling_hysteresis
796 What: /sys/.../events/in_tempY_thresh_either_hysteresis
797 What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
798 what: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
799 what: /sys/.../events/in_illuminance0_thresh_either_hysteresis
800 what: /sys/.../events/in_proximity0_thresh_falling_hysteresis
801 what: /sys/.../events/in_proximity0_thresh_rising_hysteresis
802 what: /sys/.../events/in_proximity0_thresh_either_hysteresis
803 KernelVersion: 3.13
804 Contact: linux-iio@vger.kernel.org
805 Description:
806 Specifies the hysteresis of threshold that the device is comparing
807 against for the events enabled by
808 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
809 If separate attributes exist for the two directions, but
810 direction is not specified for this attribute, then a single
811 hysteresis value applies to both directions.
812 For falling events the hysteresis is added to the _value attribute for
813 this event to get the upper threshold for when the event goes back to
814 normal, for rising events the hysteresis is subtracted from the _value
815 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
816 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
817 will get activated once in_voltage0_raw goes above 1200 and will become
818 deactivated again once the value falls below 1150.
820 What: /sys/.../events/in_accel_x_raw_roc_rising_value
821 What: /sys/.../events/in_accel_x_raw_roc_falling_value
822 What: /sys/.../events/in_accel_y_raw_roc_rising_value
823 What: /sys/.../events/in_accel_y_raw_roc_falling_value
824 What: /sys/.../events/in_accel_z_raw_roc_rising_value
825 What: /sys/.../events/in_accel_z_raw_roc_falling_value
826 What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
827 What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
828 What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
829 What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
830 What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
831 What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
832 What: /sys/.../events/in_magn_x_raw_roc_rising_value
833 What: /sys/.../events/in_magn_x_raw_roc_falling_value
834 What: /sys/.../events/in_magn_y_raw_roc_rising_value
835 What: /sys/.../events/in_magn_y_raw_roc_falling_value
836 What: /sys/.../events/in_magn_z_raw_roc_rising_value
837 What: /sys/.../events/in_magn_z_raw_roc_falling_value
838 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
839 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
840 What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
841 What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
842 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
843 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
844 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
845 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
846 What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
847 What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
848 What: /sys/.../events/in_voltageY_raw_roc_rising_value
849 What: /sys/.../events/in_voltageY_raw_roc_falling_value
850 What: /sys/.../events/in_tempY_raw_roc_rising_value
851 What: /sys/.../events/in_tempY_raw_roc_falling_value
852 KernelVersion: 2.6.37
853 Contact: linux-iio@vger.kernel.org
854 Description:
855 Specifies the value of rate of change threshold that the
856 device is comparing against for the events enabled by
857 <type>[Y][_name]_roc[_rising|falling]_en.
858 If separate attributes exist for the two directions,
859 but direction is not specified for this attribute,
860 then a single threshold value applies to both directions.
861 The raw or input element of the name indicates whether the
862 value is in raw device units or in processed units (as _raw
863 and _input do on sysfs direct channel read attributes).
865 What: /sys/.../events/in_accel_x_thresh_rising_period
866 What: /sys/.../events/in_accel_x_thresh_falling_period
867 What: /sys/.../events/in_accel_x_roc_rising_period
868 What: /sys/.../events/in_accel_x_roc_falling_period
869 What: /sys/.../events/in_accel_y_thresh_rising_period
870 What: /sys/.../events/in_accel_y_thresh_falling_period
871 What: /sys/.../events/in_accel_y_roc_rising_period
872 What: /sys/.../events/in_accel_y_roc_falling_period
873 What: /sys/.../events/in_accel_z_thresh_rising_period
874 What: /sys/.../events/in_accel_z_thresh_falling_period
875 What: /sys/.../events/in_accel_z_roc_rising_period
876 What: /sys/.../events/in_accel_z_roc_falling_period
877 What: /sys/.../events/in_anglvel_x_thresh_rising_period
878 What: /sys/.../events/in_anglvel_x_thresh_falling_period
879 What: /sys/.../events/in_anglvel_x_roc_rising_period
880 What: /sys/.../events/in_anglvel_x_roc_falling_period
881 What: /sys/.../events/in_anglvel_y_thresh_rising_period
882 What: /sys/.../events/in_anglvel_y_thresh_falling_period
883 What: /sys/.../events/in_anglvel_y_roc_rising_period
884 What: /sys/.../events/in_anglvel_y_roc_falling_period
885 What: /sys/.../events/in_anglvel_z_thresh_rising_period
886 What: /sys/.../events/in_anglvel_z_thresh_falling_period
887 What: /sys/.../events/in_anglvel_z_roc_rising_period
888 What: /sys/.../events/in_anglvel_z_roc_falling_period
889 What: /sys/.../events/in_magn_x_thresh_rising_period
890 What: /sys/.../events/in_magn_x_thresh_falling_period
891 What: /sys/.../events/in_magn_x_roc_rising_period
892 What: /sys/.../events/in_magn_x_roc_falling_period
893 What: /sys/.../events/in_magn_y_thresh_rising_period
894 What: /sys/.../events/in_magn_y_thresh_falling_period
895 What: /sys/.../events/in_magn_y_roc_rising_period
896 What: /sys/.../events/in_magn_y_roc_falling_period
897 What: /sys/.../events/in_magn_z_thresh_rising_period
898 What: /sys/.../events/in_magn_z_thresh_falling_period
899 What: /sys/.../events/in_magn_z_roc_rising_period
900 What: /sys/.../events/in_magn_z_roc_falling_period
901 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
902 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
903 What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
904 What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
905 What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
906 What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
907 What: /sys/.../events/in_rot_from_north_true_roc_rising_period
908 What: /sys/.../events/in_rot_from_north_true_roc_falling_period
909 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
910 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
911 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
912 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
913 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
914 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
915 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
916 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
917 What: /sys/.../events/in_voltageY_supply_thresh_rising_period
918 What: /sys/.../events/in_voltageY_supply_thresh_falling_period
919 What: /sys/.../events/in_voltageY_supply_roc_rising_period
920 What: /sys/.../events/in_voltageY_supply_roc_falling_period
921 What: /sys/.../events/in_voltageY_thresh_rising_period
922 What: /sys/.../events/in_voltageY_thresh_falling_period
923 What: /sys/.../events/in_voltageY_roc_rising_period
924 What: /sys/.../events/in_voltageY_roc_falling_period
925 What: /sys/.../events/in_tempY_thresh_rising_period
926 What: /sys/.../events/in_tempY_thresh_falling_period
927 What: /sys/.../events/in_tempY_roc_rising_period
928 What: /sys/.../events/in_tempY_roc_falling_period
929 What: /sys/.../events/in_accel_x&y&z_mag_falling_period
930 What: /sys/.../events/in_intensity0_thresh_period
931 What: /sys/.../events/in_proximity0_thresh_period
932 What: /sys/.../events/in_activity_still_thresh_rising_period
933 What: /sys/.../events/in_activity_still_thresh_falling_period
934 What: /sys/.../events/in_activity_walking_thresh_rising_period
935 What: /sys/.../events/in_activity_walking_thresh_falling_period
936 What: /sys/.../events/in_activity_jogging_thresh_rising_period
937 What: /sys/.../events/in_activity_jogging_thresh_falling_period
938 What: /sys/.../events/in_activity_running_thresh_rising_period
939 What: /sys/.../events/in_activity_running_thresh_falling_period
940 KernelVersion: 2.6.37
941 Contact: linux-iio@vger.kernel.org
942 Description:
943 Period of time (in seconds) for which the condition must be
944 met before an event is generated. If direction is not
945 specified then this period applies to both directions.
947 What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
948 What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
949 What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
950 KernelVersion: 4.2
951 Contact: linux-iio@vger.kernel.org
952 Description:
953 If a low pass filter can be applied to the event generation
954 this property gives its 3db frequency in Hz.
955 A value of zero disables the filter.
957 What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
958 What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
959 What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
960 KernelVersion: 4.2
961 Contact: linux-iio@vger.kernel.org
962 Description:
963 If a high pass filter can be applied to the event generation
964 this property gives its 3db frequency in Hz.
965 A value of zero disables the filter.
967 What: /sys/.../events/in_activity_still_thresh_rising_en
968 What: /sys/.../events/in_activity_still_thresh_falling_en
969 What: /sys/.../events/in_activity_walking_thresh_rising_en
970 What: /sys/.../events/in_activity_walking_thresh_falling_en
971 What: /sys/.../events/in_activity_jogging_thresh_rising_en
972 What: /sys/.../events/in_activity_jogging_thresh_falling_en
973 What: /sys/.../events/in_activity_running_thresh_rising_en
974 What: /sys/.../events/in_activity_running_thresh_falling_en
975 KernelVersion: 3.19
976 Contact: linux-iio@vger.kernel.org
977 Description:
978 Enables or disables activitity events. Depending on direction
979 an event is generated when sensor ENTERS or LEAVES a given state.
981 What: /sys/.../events/in_activity_still_thresh_rising_value
982 What: /sys/.../events/in_activity_still_thresh_falling_value
983 What: /sys/.../events/in_activity_walking_thresh_rising_value
984 What: /sys/.../events/in_activity_walking_thresh_falling_value
985 What: /sys/.../events/in_activity_jogging_thresh_rising_value
986 What: /sys/.../events/in_activity_jogging_thresh_falling_value
987 What: /sys/.../events/in_activity_running_thresh_rising_value
988 What: /sys/.../events/in_activity_running_thresh_falling_value
989 KernelVersion: 3.19
990 Contact: linux-iio@vger.kernel.org
991 Description:
992 Confidence value (in units as percentage) to be used
993 for deciding when an event should be generated. E.g for
994 running: If the confidence value reported by the sensor
995 is greater than in_activity_running_thresh_rising_value
996 then the sensor ENTERS running state. Conversely, if the
997 confidence value reported by the sensor is lower than
998 in_activity_running_thresh_falling_value then the sensor
999 is LEAVING running state.
1001 What: /sys/.../iio:deviceX/events/in_accel_mag_en
1002 What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
1003 What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
1004 What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
1005 What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1006 What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1007 What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
1008 What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1009 What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1010 What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
1011 What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1012 What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1013 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1014 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1015 KernelVersion: 2.6.37
1016 Contact: linux-iio@vger.kernel.org
1017 Description:
1018 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1019 magnitude of the channel is compared to the threshold, not its
1020 signed value.
1022 What: /sys/.../events/in_accel_raw_mag_value
1023 What: /sys/.../events/in_accel_x_raw_mag_rising_value
1024 What: /sys/.../events/in_accel_y_raw_mag_rising_value
1025 What: /sys/.../events/in_accel_z_raw_mag_rising_value
1026 KernelVersion: 2.6.37
1027 Contact: linux-iio@vger.kernel.org
1028 Description:
1029 The value to which the magnitude of the channel is compared. If
1030 number or direction is not specified, applies to all channels of
1031 this type.
1033 What: /sys/.../events/in_steps_change_en
1034 KernelVersion: 4.0
1035 Contact: linux-iio@vger.kernel.org
1036 Description:
1037 Event generated when channel passes a threshold on the absolute
1038 change in value. E.g. for steps: a step change event is
1039 generated each time the user takes N steps, where N is set using
1040 in_steps_change_value.
1042 What: /sys/.../events/in_steps_change_value
1043 KernelVersion: 4.0
1044 Contact: linux-iio@vger.kernel.org
1045 Description:
1046 Specifies the value of change threshold that the
1047 device is comparing against for the events enabled by
1048 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1049 if set to 3, a step change event will be generated every 3
1050 steps.
1052 What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1053 KernelVersion: 2.6.35
1054 Contact: linux-iio@vger.kernel.org
1055 Description:
1056 The name of the trigger source being used, as per string given
1057 in /sys/class/iio/triggerY/name.
1059 What: /sys/bus/iio/devices/iio:deviceX/buffer/length
1060 KernelVersion: 2.6.35
1061 Contact: linux-iio@vger.kernel.org
1062 Description:
1063 Number of scans contained by the buffer.
1065 What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
1066 KernelVersion: 2.6.35
1067 Contact: linux-iio@vger.kernel.org
1068 Description:
1069 Actually start the buffer capture up. Will start trigger
1070 if first device and appropriate.
1072 What: /sys/bus/iio/devices/iio:deviceX/scan_elements
1073 KernelVersion: 2.6.37
1074 Contact: linux-iio@vger.kernel.org
1075 Description:
1076 Directory containing interfaces for elements that will be
1077 captured for a single triggered sample set in the buffer.
1079 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
1080 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
1081 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
1082 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1083 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1084 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1085 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
1086 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
1087 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
1088 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1089 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1090 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1091 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1092 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
1093 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1094 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
1095 What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1096 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1097 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1098 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1099 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1100 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
1101 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
1102 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
1103 What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
1104 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1105 What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
1106 KernelVersion: 2.6.37
1107 Contact: linux-iio@vger.kernel.org
1108 Description:
1109 Scan element control for triggered data capture.
1111 What: /sys/.../iio:deviceX/scan_elements/in_accel_type
1112 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
1113 What: /sys/.../iio:deviceX/scan_elements/in_magn_type
1114 What: /sys/.../iio:deviceX/scan_elements/in_incli_type
1115 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
1116 What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
1117 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1118 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1119 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1120 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1121 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1122 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
1123 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
1124 What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
1125 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1126 What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
1127 KernelVersion: 2.6.37
1128 Contact: linux-iio@vger.kernel.org
1129 Description:
1130 Description of the scan element data storage within the buffer
1131 and hence the form in which it is read from user-space.
1132 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1133 be or le specifies big or little endian. s or u specifies if
1134 signed (2's complement) or unsigned. bits is the number of bits
1135 of data and storagebits is the space (after padding) that it
1136 occupies in the buffer. shift if specified, is the shift that
1137 needs to be applied prior to masking out unused bits. Some
1138 devices put their data in the middle of the transferred elements
1139 with additional information on both sides. Note that some
1140 devices will have additional information in the unused bits
1141 so to get a clean value, the bits value must be used to mask
1142 the buffer output value appropriately. The storagebits value
1143 also specifies the data alignment. So s48/64>>2 will be a
1144 signed 48 bit integer stored in a 64 bit location aligned to
1145 a 64 bit boundary. To obtain the clean value, shift right 2
1146 and apply a mask to zero the top 16 bits of the result.
1147 For other storage combinations this attribute will be extended
1148 appropriately.
1150 What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1151 KernelVersion: 2.6.37
1152 Contact: linux-iio@vger.kernel.org
1153 Description:
1154 If the type parameter can take one of a small set of values,
1155 this attribute lists them.
1157 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1158 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1159 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1160 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1161 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1162 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1163 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1164 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1165 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1166 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1167 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1168 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1169 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1170 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1171 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1172 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1173 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1174 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1175 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1176 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1177 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1178 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1179 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1180 What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
1181 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1182 What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
1183 KernelVersion: 2.6.37
1184 Contact: linux-iio@vger.kernel.org
1185 Description:
1186 A single positive integer specifying the position of this
1187 scan element in the buffer. Note these are not dependent on
1188 what is enabled and may not be contiguous. Thus for user-space
1189 to establish the full layout these must be used in conjunction
1190 with all _en attributes to establish which channels are present,
1191 and the relevant _type attributes to establish the data storage
1192 format.
1194 What: /sys/.../iio:deviceX/in_activity_still_input
1195 What: /sys/.../iio:deviceX/in_activity_walking_input
1196 What: /sys/.../iio:deviceX/in_activity_jogging_input
1197 What: /sys/.../iio:deviceX/in_activity_running_input
1198 KernelVersion: 3.19
1199 Contact: linux-iio@vger.kernel.org
1200 Description:
1201 This attribute is used to read the confidence for an activity
1202 expressed in units as percentage.
1204 What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1205 KernelVersion: 2.6.38
1206 Contact: linux-iio@vger.kernel.org
1207 Description:
1208 This attribute is used to read the amount of quadrature error
1209 present in the device at a given time.
1211 What: /sys/.../iio:deviceX/in_accelX_power_mode
1212 KernelVersion: 3.11
1213 Contact: linux-iio@vger.kernel.org
1214 Description:
1215 Specifies the chip power mode.
1216 low_noise: reduce noise level from ADC,
1217 low_power: enable low current consumption.
1218 For a list of available output power modes read
1219 in_accel_power_mode_available.
1221 What: /sys/.../iio:deviceX/in_energy_input
1222 What: /sys/.../iio:deviceX/in_energy_raw
1223 KernelVersion: 4.0
1224 Contact: linux-iio@vger.kernel.org
1225 Description:
1226 This attribute is used to read the energy value reported by the
1227 device (e.g.: human activity sensors report energy burnt by the
1228 user). Units after application of scale are Joules.
1230 What: /sys/.../iio:deviceX/in_distance_input
1231 What: /sys/.../iio:deviceX/in_distance_raw
1232 KernelVersion: 4.0
1233 Contact: linux-iio@vger.kernel.org
1234 Description:
1235 This attribute is used to read the distance covered by the user
1236 since the last reboot while activated. Units after application
1237 of scale are meters.
1239 What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1240 KernelVersion: 3.4.0
1241 Contact: linux-iio@vger.kernel.org
1242 Description:
1243 Writing '1' stores the current device configuration into
1244 on-chip EEPROM. After power-up or chip reset the device will
1245 automatically load the saved configuration.
1247 What: /sys/.../iio:deviceX/in_proximity_raw
1248 What: /sys/.../iio:deviceX/in_proximity_input
1249 What: /sys/.../iio:deviceX/in_proximityY_raw
1250 KernelVersion: 3.4
1251 Contact: linux-iio@vger.kernel.org
1252 Description:
1253 Proximity measurement indicating that some
1254 object is near the sensor, usually by observing
1255 reflectivity of infrared or ultrasound emitted.
1256 Often these sensors are unit less and as such conversion
1257 to SI units is not possible. Higher proximity measurements
1258 indicate closer objects, and vice versa. Units after
1259 application of scale and offset are meters.
1261 What: /sys/.../iio:deviceX/in_illuminance_input
1262 What: /sys/.../iio:deviceX/in_illuminance_raw
1263 What: /sys/.../iio:deviceX/in_illuminanceY_input
1264 What: /sys/.../iio:deviceX/in_illuminanceY_raw
1265 What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1266 What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1267 What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1268 KernelVersion: 3.4
1269 Contact: linux-iio@vger.kernel.org
1270 Description:
1271 Illuminance measurement, units after application of scale
1272 and offset are lux.
1274 What: /sys/.../iio:deviceX/in_intensityY_raw
1275 What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1276 What: /sys/.../iio:deviceX/in_intensityY_both_raw
1277 What: /sys/.../iio:deviceX/in_intensityY_uv_raw
1278 KernelVersion: 3.4
1279 Contact: linux-iio@vger.kernel.org
1280 Description:
1281 Unit-less light intensity. Modifiers both and ir indicate
1282 that measurements contains visible and infrared light
1283 components or just infrared light, respectively. Modifier uv indicates
1284 that measurements contain ultraviolet light components.
1286 What: /sys/.../iio:deviceX/in_uvindex_input
1287 KernelVersion: 4.6
1288 Contact: linux-iio@vger.kernel.org
1289 Description:
1290 UV light intensity index measuring the human skin's response to
1291 different wavelength of sunlight weighted according to the
1292 standardised CIE Erythemal Action Spectrum. UV index values range
1293 from 0 (low) to >=11 (extreme).
1295 What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1296 What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1297 What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1298 What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1299 What: /sys/.../iio:deviceX/in_illuminance_integration_time
1300 KernelVersion: 3.12
1301 Contact: linux-iio@vger.kernel.org
1302 Description:
1303 This attribute is used to get/set the integration time in
1304 seconds.
1306 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1307 KernelVersion: 4.0
1308 Contact: linux-iio@vger.kernel.org
1309 Description:
1310 Number of seconds in which to compute speed.
1312 What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1313 KernelVersion: 3.15
1314 Contact: linux-iio@vger.kernel.org
1315 Description:
1316 Raw value of quaternion components using a format
1317 x y z w. Here x, y, and z component represents the axis about
1318 which a rotation will occur and w component represents the
1319 amount of rotation.
1321 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1322 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1323 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1324 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1325 KernelVersion: 3.15
1326 Contact: linux-iio@vger.kernel.org
1327 Description:
1328 Raw value of rotation from true/magnetic north measured with
1329 or without compensation from tilt sensors.
1331 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1332 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1333 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1334 KernelVersion: 3.18
1335 Contact: linux-iio@vger.kernel.org
1336 Description:
1337 Raw current measurement from channel X. Units are in milliamps
1338 after application of scale and offset. If no offset or scale is
1339 present, output should be considered as processed with the
1340 unit in milliamps.
1342 Channels with 'i' and 'q' modifiers always exist in pairs and both
1343 channels refer to the same signal. The 'i' channel contains the in-phase
1344 component of the signal while the 'q' channel contains the quadrature
1345 component.
1347 What: /sys/.../iio:deviceX/in_energy_en
1348 What: /sys/.../iio:deviceX/in_distance_en
1349 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1350 What: /sys/.../iio:deviceX/in_steps_en
1351 KernelVersion: 3.19
1352 Contact: linux-iio@vger.kernel.org
1353 Description:
1354 Activates a device feature that runs in firmware/hardware.
1355 E.g. for steps: the pedometer saves power while not used;
1356 when activated, it will count the steps taken by the user in
1357 firmware and export them through in_steps_input.
1359 What: /sys/.../iio:deviceX/in_steps_input
1360 KernelVersion: 3.19
1361 Contact: linux-iio@vger.kernel.org
1362 Description:
1363 This attribute is used to read the number of steps taken by the user
1364 since the last reboot while activated.
1366 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1367 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1368 KernelVersion: 3.19
1369 Contact: linux-iio@vger.kernel.org
1370 Description:
1371 This attribute is used to read the current speed value of the
1372 user (which is the norm or magnitude of the velocity vector).
1373 Units after application of scale are m/s.
1375 What: /sys/.../iio:deviceX/in_steps_debounce_count
1376 KernelVersion: 4.0
1377 Contact: linux-iio@vger.kernel.org
1378 Description:
1379 Specifies the number of steps that must occur within
1380 in_steps_filter_debounce_time for the pedometer to decide the
1381 consumer is making steps.
1383 What: /sys/.../iio:deviceX/in_steps_debounce_time
1384 KernelVersion: 4.0
1385 Contact: linux-iio@vger.kernel.org
1386 Description:
1387 Specifies number of seconds in which we compute the steps
1388 that occur in order to decide if the consumer is making steps.
1390 What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
1391 KernelVersion: 4.2
1392 Contact: linux-iio@vger.kernel.org
1393 Description:
1394 A single positive integer specifying the maximum number of scan
1395 elements to wait for.
1396 Poll will block until the watermark is reached.
1397 Blocking read will wait until the minimum between the requested
1398 read amount or the low water mark is available.
1399 Non-blocking read will retrieve the available samples from the
1400 buffer even if there are less samples then watermark level. This
1401 allows the application to block on poll with a timeout and read
1402 the available samples after the timeout expires and thus have a
1403 maximum delay guarantee.
1405 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1406 KernelVersion: 4.2
1407 Contact: linux-iio@vger.kernel.org
1408 Description:
1409 A read-only boolean value that indicates if the hardware fifo is
1410 currently enabled or disabled. If the device does not have a
1411 hardware fifo this entry is not present.
1412 The hardware fifo is enabled when the buffer is enabled if the
1413 current hardware fifo watermark level is set and other current
1414 device settings allows it (e.g. if a trigger is set that samples
1415 data differently that the hardware fifo does then hardware fifo
1416 will not enabled).
1417 If the hardware fifo is enabled and the level of the hardware
1418 fifo reaches the hardware fifo watermark level the device will
1419 flush its hardware fifo to the device buffer. Doing a non
1420 blocking read on the device when no samples are present in the
1421 device buffer will also force a flush.
1422 When the hardware fifo is enabled there is no need to use a
1423 trigger to use buffer mode since the watermark settings
1424 guarantees that the hardware fifo is flushed to the device
1425 buffer.
1427 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1428 KernelVersion: 4.2
1429 Contact: linux-iio@vger.kernel.org
1430 Description:
1431 Read-only entry that contains a single integer specifying the
1432 current watermark level for the hardware fifo. If the device
1433 does not have a hardware fifo this entry is not present.
1434 The watermark level for the hardware fifo is set by the driver
1435 based on the value set by the user in buffer/watermark but
1436 taking into account hardware limitations (e.g. most hardware
1437 buffers are limited to 32-64 samples, some hardware buffers
1438 watermarks are fixed or have minimum levels). A value of 0
1439 means that the hardware watermark is unset.
1441 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1442 KernelVersion: 4.2
1443 Contact: linux-iio@vger.kernel.org
1444 Description:
1445 A single positive integer specifying the minimum watermark level
1446 for the hardware fifo of this device. If the device does not
1447 have a hardware fifo this entry is not present.
1448 If the user sets buffer/watermark to a value less than this one,
1449 then the hardware watermark will remain unset.
1451 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1452 KernelVersion: 4.2
1453 Contact: linux-iio@vger.kernel.org
1454 Description:
1455 A single positive integer specifying the maximum watermark level
1456 for the hardware fifo of this device. If the device does not
1457 have a hardware fifo this entry is not present.
1458 If the user sets buffer/watermark to a value greater than this
1459 one, then the hardware watermark will be capped at this value.
1461 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1462 KernelVersion: 4.2
1463 Contact: linux-iio@vger.kernel.org
1464 Description:
1465 A list of positive integers specifying the available watermark
1466 levels for the hardware fifo. This entry is optional and if it
1467 is not present it means that all the values between
1468 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1469 If the user sets buffer/watermark to a value greater than
1470 hwfifo_watermak_min but not equal to any of the values in this
1471 list, the driver will chose an appropriate value for the
1472 hardware fifo watermark level.
1474 What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1475 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1476 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1477 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1478 KernelVersion: 4.1
1479 Contact: linux-iio@vger.kernel.org
1480 Description:
1481 The emissivity ratio of the surface in the field of view of the
1482 contactless temperature sensor. Emissivity varies from 0 to 1,
1483 with 1 being the emissivity of a black body.
1485 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1486 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1487 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1488 KernelVersion: 4.2
1489 Contact: linux-iio@vger.kernel.org
1490 Description:
1491 Hardware applied number of measurements for acquiring one
1492 data point. The HW will do <type>[_name]_oversampling_ratio
1493 measurements and return the average value as output data. Each
1494 value resulted from <type>[_name]_oversampling_ratio measurements
1495 is considered as one sample for <type>[_name]_sampling_frequency.
1497 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1498 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1499 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1500 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1501 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1502 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1503 KernelVersion: 4.3
1504 Contact: linux-iio@vger.kernel.org
1505 Description:
1506 Raw (unscaled no offset etc.) percentage reading of a substance.
1508 What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1509 What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1510 What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1511 What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1512 KernelVersion: 4.3
1513 Contact: linux-iio@vger.kernel.org
1514 Description:
1515 Raw (unscaled no offset etc.) resistance reading that can be processed
1516 into an ohm value.
1518 What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1519 KernelVersion: 4.1.0
1520 Contact: linux-iio@vger.kernel.org
1521 Description:
1522 '1' (enable) or '0' (disable) specifying the enable
1523 of heater function. Same reading values apply
1524 This ABI is especially applicable for humidity sensors
1525 to heatup the device and get rid of any condensation
1526 in some humidity environment
1528 What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1529 KernelVersion: 4.5
1530 Contact: linux-iio@vger.kernel.org
1531 Description:
1532 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1533 base-10 logarithm of hydrodium ions in a litre of water.
1535 What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
1536 What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1537 What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1538 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1539 What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1540 KernelVersion: 4.6
1541 Contact: linux-iio@vger.kernel.org
1542 Description:
1543 Mounting matrix for IIO sensors. This is a rotation matrix which
1544 informs userspace about sensor chip's placement relative to the
1545 main hardware it is mounted on.
1546 Main hardware placement is defined according to the local
1547 reference frame related to the physical quantity the sensor
1548 measures.
1549 Given that the rotation matrix is defined in a board specific
1550 way (platform data and / or device-tree), the main hardware
1551 reference frame definition is left to the implementor's choice
1552 (see below for a magnetometer example).
1553 Applications should apply this rotation matrix to samples so
1554 that when main hardware reference frame is aligned onto local
1555 reference frame, then sensor chip reference frame is also
1556 perfectly aligned with it.
1557 Matrix is a 3x3 unitary matrix and typically looks like
1558 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1559 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1560 are perfectly aligned with each other.
1562 For example, a mounting matrix for a magnetometer sensor informs
1563 userspace about sensor chip's ORIENTATION relative to the main
1564 hardware.
1565 More specifically, main hardware orientation is defined with
1566 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1567 * Y is in the ground plane and positive towards magnetic North ;
1568 * X is in the ground plane, perpendicular to the North axis and
1569 positive towards the East ;
1570 * Z is perpendicular to the ground plane and positive upwards.
1572 An implementor might consider that for a hand-held device, a
1573 'natural' orientation would be 'front facing camera at the top'.
1574 The main hardware reference frame could then be described as :
1575 * Y is in the plane of the screen and is positive towards the
1576 top of the screen ;
1577 * X is in the plane of the screen, perpendicular to Y axis, and
1578 positive towards the right hand side of the screen ;
1579 * Z is perpendicular to the screen plane and positive out of the
1580 screen.
1581 Another example for a quadrotor UAV might be :
1582 * Y is in the plane of the propellers and positive towards the
1583 front-view camera;
1584 * X is in the plane of the propellers, perpendicular to Y axis,
1585 and positive towards the starboard side of the UAV ;
1586 * Z is perpendicular to propellers plane and positive upwards.
1588 What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1589 KernelVersion: 4.8
1590 Contact: linux-iio@vger.kernel.org
1591 Description:
1592 Raw (unscaled no offset etc.) electric conductivity reading that
1593 can be processed to siemens per meter.
1595 What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
1596 KernelVersion: 4.9
1597 Contact: linux-iio@vger.kernel.org
1598 Description:
1599 Raw counter device counts from channel Y. For quadrature
1600 counters, multiplication by an available [Y]_scale results in
1601 the counts of a single quadrature signal phase from channel Y.
1603 What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1604 KernelVersion: 4.9
1605 Contact: linux-iio@vger.kernel.org
1606 Description:
1607 Raw counter device index value from channel Y. This attribute
1608 provides an absolute positional reference (e.g. a pulse once per
1609 revolution) which may be used to home positional systems as
1610 required.