1 What: /sys/bus/iio/devices/deviceX
3 Contact: linux-iio@vger.kernel.org
5 Hardware chip or device accessed by on communication port.
6 Corresponds to a grouping of sensor channels. X is the IIO
9 What: /sys/bus/iio/devices/triggerX
11 Contact: linux-iio@vger.kernel.org
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/deviceX:buffer
24 Contact: linux-iio@vger.kernel.org
26 Link to /sys/class/iio/deviceX/deviceX:buffer. X indicates
27 the device with which this buffer buffer is associated.
29 What: /sys/bus/iio/devices/deviceX/name
31 Contact: linux-iio@vger.kernel.org
33 Description of the physical chip / device for device X.
34 Typically a part number.
36 What: /sys/bus/iio/devices/deviceX/sampling_frequency
38 Contact: linux-iio@vger.kernel.org
40 Some devices have internal clocks. This parameter sets the
41 resulting sampling frequency. In many devices this
42 parameter has an effect on input filters etc rather than
43 simply controlling when the input is sampled. As this
44 effects datardy triggers, hardware buffers and the sysfs
45 direct access interfaces, it may be found in any of the
46 relevant directories. If it effects all of the above
47 then it is to be found in the base device directory as here.
49 What: /sys/bus/iio/devices/deviceX/sampling_frequency_available
51 Contact: linux-iio@vger.kernel.org
53 When the internal sampling clock can only take a small
54 discrete set of values, this file lists those available.
56 What: /sys/bus/iio/devices/deviceX/range
58 Contact: linux-iio@vger.kernel.org
60 Hardware dependent ADC Full Scale Range in mVolt.
62 What: /sys/bus/iio/devices/deviceX/range_available
64 Contact: linux-iio@vger.kernel.org
66 Hardware dependent supported vales for ADC Full Scale Range.
68 What: /sys/bus/iio/devices/deviceX/oversampling_ratio
70 Contact: linux-iio@vger.kernel.org
72 Hardware dependent ADC oversampling. Controls the sampling ratio
73 of the digital filter if available.
75 What: /sys/bus/iio/devices/deviceX/oversampling_ratio_available
77 Contact: linux-iio@vger.kernel.org
79 Hardware dependent values supported by the oversampling filter.
81 What: /sys/bus/iio/devices/deviceX/inY_raw
82 What: /sys/bus/iio/devices/deviceX/inY_supply_raw
84 Contact: linux-iio@vger.kernel.org
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.
92 What: /sys/bus/iio/devices/deviceX/inY-inZ_raw
94 Contact: linux-iio@vger.kernel.org
96 Raw (unscaled) differential voltage measurement equivalent to
97 channel Y - channel Z where these channel numbers apply to the
98 physically equivalent inputs when non differential readings are
99 separately available. In differential only parts, then all that
100 is required is a consistent labeling.
102 What: /sys/bus/iio/devices/deviceX/temp_raw
103 What: /sys/bus/iio/devices/deviceX/temp_x_raw
104 What: /sys/bus/iio/devices/deviceX/temp_y_raw
105 What: /sys/bus/iio/devices/deviceX/temp_z_raw
106 KernelVersion: 2.6.35
107 Contact: linux-iio@vger.kernel.org
109 Raw (unscaled no bias removal etc) temperature measurement.
110 It an axis is specified it generally means that the temperature
111 sensor is associated with one part of a compound device (e.g.
114 What: /sys/bus/iio/devices/deviceX/accel_x_raw
115 What: /sys/bus/iio/devices/deviceX/accel_y_raw
116 What: /sys/bus/iio/devices/deviceX/accel_z_raw
117 KernelVersion: 2.6.35
118 Contact: linux-iio@vger.kernel.org
120 Acceleration in direction x, y or z (may be arbitrarily assigned
121 but should match other such assignments on device)
122 channel m (not present if only one accelerometer channel at
123 this orientation). Has all of the equivalent parameters as per
124 inY. Units after application of scale and offset are m/s^2.
126 What: /sys/bus/iio/devices/deviceX/gyro_x_raw
127 What: /sys/bus/iio/devices/deviceX/gyro_y_raw
128 What: /sys/bus/iio/devices/deviceX/gyro_z_raw
129 KernelVersion: 2.6.35
130 Contact: linux-iio@vger.kernel.org
132 Angular velocity about axis x, y or z (may be arbitrarily
133 assigned) Data converted by application of offset then scale to
134 radians per second. Has all the equivalent parameters as
137 What: /sys/bus/iio/devices/deviceX/incli_x_raw
138 What: /sys/bus/iio/devices/deviceX/incli_y_raw
139 What: /sys/bus/iio/devices/deviceX/incli_z_raw
140 KernelVersion: 2.6.35
141 Contact: linux-iio@vger.kernel.org
143 Inclination raw reading about axis x, y or z (may be
144 arbitrarily assigned). Data converted by application of offset
145 and scale to Degrees.
147 What: /sys/bus/iio/devices/deviceX/magn_x_raw
148 What: /sys/bus/iio/devices/deviceX/magn_y_raw
149 What: /sys/bus/iio/devices/deviceX/magn_z_raw
150 KernelVersion: 2.6.35
151 Contact: linux-iio@vger.kernel.org
153 Magnetic field along axis x, y or z (may be arbitrarily
154 assigned) channel m (not present if only one magnetometer
155 at this orientation). Data converted by application of
156 offset then scale to Gauss. Has all the equivalent modifiers
159 What: /sys/bus/iio/devices/deviceX/accel_x_peak_raw
160 What: /sys/bus/iio/devices/deviceX/accel_y_peak_raw
161 What: /sys/bus/iio/devices/deviceX/accel_z_peak_raw
162 KernelVersion: 2.6.36
163 Contact: linux-iio@vger.kernel.org
165 Some devices provide a store of the highest value seen since
166 some reset condition. These attributes allow access to this
167 and are otherwise the direct equivalent of the
168 <type>Y[_name]_raw attributes.
170 What: /sys/bus/iio/devices/deviceX/accel_xyz_squared_peak_raw
171 KernelVersion: 2.6.36
172 Contact: linux-iio@vger.kernel.org
174 A computed peak value based on the sum squared magnitude of
175 the underlying value in the specified directions.
177 What: /sys/bus/iio/devices/deviceX/accel_offset
178 What: /sys/bus/iio/devices/deviceX/temp_offset
179 KernelVersion: 2.6.35
180 Contact: linux-iio@vger.kernel.org
182 If known for a device, offset to be added to <type>[Y]_raw prior
183 to scaling by <type>[Y]_scale in order to obtain value in the
184 <type> units as specified in <type>[y]_raw documentation.
185 Not present if the offset is always 0 or unknown. If Y is not
186 present, then the offset applies to all in channels of <type>.
187 May be writable if a variable offset can be applied on the
188 device. Note that this is different to calibbias which
189 is for devices (or drivers) that apply offsets to compensate
190 for variation between different instances of the part, typically
191 adjusted by using some hardware supported calibration procedure.
193 What: /sys/bus/iio/devices/deviceX/inY_scale
194 What: /sys/bus/iio/devices/deviceX/inY_supply_scale
195 What: /sys/bus/iio/devices/deviceX/in_scale
196 What: /sys/bus/iio/devices/deviceX/outY_scale
197 What: /sys/bus/iio/devices/deviceX/accel_scale
198 What: /sys/bus/iio/devices/deviceX/accel_peak_scale
199 What: /sys/bus/iio/devices/deviceX/gyro_scale
200 What: /sys/bus/iio/devices/deviceX/magn_scale
201 What: /sys/bus/iio/devices/deviceX/magn_x_scale
202 What: /sys/bus/iio/devices/deviceX/magn_y_scale
203 What: /sys/bus/iio/devices/deviceX/magn_z_scale
204 KernelVersion: 2.6.35
205 Contact: linux-iio@vger.kernel.org
207 If known for a device, scale to be applied to <type>Y[_name]_raw
208 post addition of <type>[Y][_name]_offset in order to obtain the
209 measured value in <type> units as specified in
210 <type>[Y][_name]_raw documentation.. If shared across all in
211 channels then Y is not present and the value is called
212 <type>[Y][_name]_scale. The peak modifier means this value
213 is applied to <type>Y[_name]_peak_raw values.
215 What: /sys/bus/iio/devices/deviceX/accel_x_calibbias
216 What: /sys/bus/iio/devices/deviceX/accel_y_calibbias
217 What: /sys/bus/iio/devices/deviceX/accel_z_calibbias
218 What: /sys/bus/iio/devices/deviceX/gyro_x_calibbias
219 What: /sys/bus/iio/devices/deviceX/gyro_y_calibbias
220 What: /sys/bus/iio/devices/deviceX/gyro_z_calibbias
221 KernelVersion: 2.6.35
222 Contact: linux-iio@vger.kernel.org
224 Hardware applied calibration offset. (assumed to fix production
225 inaccuracies). If shared across all channels, <type>_calibbias
228 What /sys/bus/iio/devices/deviceX/inY_calibscale
229 What /sys/bus/iio/devices/deviceX/inY_supply_calibscale
230 What /sys/bus/iio/devices/deviceX/in_calibscale
231 What /sys/bus/iio/devices/deviceX/accel_x_calibscale
232 What /sys/bus/iio/devices/deviceX/accel_y_calibscale
233 What /sys/bus/iio/devices/deviceX/accel_z_calibscale
234 What /sys/bus/iio/devices/deviceX/gyro_x_calibscale
235 What /sys/bus/iio/devices/deviceX/gyro_y_calibscale
236 What /sys/bus/iio/devices/deviceX/gyro_z_calibscale
237 KernelVersion: 2.6.35
238 Contact: linux-iio@vger.kernel.org
240 Hardware applied calibration scale factor. (assumed to fix
241 production inaccuracies). If shared across all channels,
242 <type>_calibscale is used.
244 What: /sys/bus/iio/devices/deviceX/accel_scale_available
246 Contact: linux-iio@vger.kernel.org
248 If a discrete set of scale values are available, they
249 are listed in this attribute.
251 What: /sys/bus/iio/devices/deviceX/outY_raw
252 KernelVersion: 2.6.37
253 Contact: linux-iio@vger.kernel.org
255 Raw (unscaled, no bias etc.) output voltage for
256 channel Y. The number must always be specified and
257 unique if the output corresponds to a single channel.
259 What: /sys/bus/iio/devices/deviceX/outY&Z_raw
260 KernelVersion: 2.6.37
261 Contact: linux-iio@vger.kernel.org
263 Raw (unscaled, no bias etc.) output voltage for an aggregate of
264 channel Y, channel Z, etc. This interface is available in cases
265 where a single output sets the value for multiple channels
268 What: /sys/bus/iio/devices/deviceX/deviceX:eventY
269 KernelVersion: 2.6.35
270 Contact: linux-iio@vger.kernel.org
272 Configuration of which hardware generated events are passed up
275 What: /sys/bus/iio/devices/deviceX:event/dev
276 What: /sys/bus/iio/devices/deviceX:eventY/dev
277 KernelVersion: 2.6.35
278 Contact: linux-iio@vger.kernel.org
280 major:minor character device numbers for the event line Y of
283 What: /sys/.../deviceX:eventY/accel_x_thresh_rising_en
284 What: /sys/.../deviceX:eventY/accel_x_thresh_falling_en
285 What: /sys/.../deviceX:eventY/accel_y_thresh_rising_en
286 What: /sys/.../deviceX:eventY/accel_y_thresh_falling_en
287 What: /sys/.../deviceX:eventY/accel_z_thresh_rising_en
288 What: /sys/.../deviceX:eventY/accel_z_thresh_falling_en
289 What: /sys/.../deviceX:eventY/gyro_x_thresh_rising_en
290 What: /sys/.../deviceX:eventY/gyro_x_thresh_falling_en
291 What: /sys/.../deviceX:eventY/gyro_y_thresh_rising_en
292 What: /sys/.../deviceX:eventY/gyro_y_thresh_falling_en
293 What: /sys/.../deviceX:eventY/gyro_z_thresh_rising_en
294 What: /sys/.../deviceX:eventY/gyro_z_thresh_falling_en
295 What: /sys/.../deviceX:eventY/magn_x_thresh_rising_en
296 What: /sys/.../deviceX:eventY/magn_x_thresh_falling_en
297 What: /sys/.../deviceX:eventY/magn_y_thresh_rising_en
298 What: /sys/.../deviceX:eventY/magn_y_thresh_falling_en
299 What: /sys/.../deviceX:eventY/magn_z_thresh_rising_en
300 What: /sys/.../deviceX:eventY/magn_z_thresh_falling_en
301 What: /sys/.../deviceX:eventY/inZ_supply_thresh_rising_en
302 What: /sys/.../deviceX:eventY/inZ_supply_thresh_falling_en
303 What: /sys/.../deviceX:eventY/inZ_thresh_rising_en
304 What: /sys/.../deviceX:eventY/inZ_thresh_falling_en
305 What: /sys/.../deviceX:eventY/temp_thresh_rising_en
306 What: /sys/.../deviceX:eventY/temp_thresh_falling_en
307 KernelVersion: 2.6.37
308 Contact: linux-iio@vger.kernel.org
310 Event generated when channel passes a threshold in the specified
311 (_rising|_falling) direction. If the direction is not specified,
312 then either the device will report an event which ever direction
313 a single threshold value is called in (e.g.
314 <type>[Z][_name]_<raw|input>_thresh_value) or
315 <type>[Z][_name]_<raw|input>_thresh_rising_value and
316 <type>[Z][_name]_<raw|input>_thresh_falling_value may take
317 different values, but the device can only enable both thresholds
319 Note the driver will assume the last p events requested are
320 to be enabled where p is however many it supports (which may
321 vary depending on the exact set requested. So if you want to be
322 sure you have set what you think you have, check the contents of
323 these attributes after everything is configured. Drivers may
324 have to buffer any parameters so that they are consistent when
325 a given event type is enabled a future point (and not those for
326 whatever event was previously enabled).
328 What: /sys/.../deviceX:eventY/accel_x_roc_rising_en
329 What: /sys/.../deviceX:eventY/accel_x_roc_falling_en
330 What: /sys/.../deviceX:eventY/accel_y_roc_rising_en
331 What: /sys/.../deviceX:eventY/accel_y_roc_falling_en
332 What: /sys/.../deviceX:eventY/accel_z_roc_rising_en
333 What: /sys/.../deviceX:eventY/accel_z_roc_falling_en
334 What: /sys/.../deviceX:eventY/gyro_x_roc_rising_en
335 What: /sys/.../deviceX:eventY/gyro_x_roc_falling_en
336 What: /sys/.../deviceX:eventY/gyro_y_roc_rising_en
337 What: /sys/.../deviceX:eventY/gyro_y_roc_falling_en
338 What: /sys/.../deviceX:eventY/gyro_z_roc_rising_en
339 What: /sys/.../deviceX:eventY/gyro_z_roc_falling_en
340 What: /sys/.../deviceX:eventY/magn_x_roc_rising_en
341 What: /sys/.../deviceX:eventY/magn_x_roc_falling_en
342 What: /sys/.../deviceX:eventY/magn_y_roc_rising_en
343 What: /sys/.../deviceX:eventY/magn_y_roc_falling_en
344 What: /sys/.../deviceX:eventY/magn_z_roc_rising_en
345 What: /sys/.../deviceX:eventY/magn_z_roc_falling_en
346 What: /sys/.../deviceX:eventY/inZ_supply_roc_rising_en
347 What: /sys/.../deviceX:eventY/inZ_supply_roc_falling_en
348 What: /sys/.../deviceX:eventY/inZ_roc_rising_en
349 What: /sys/.../deviceX:eventY/inZ_roc_falling_en
350 What: /sys/.../deviceX:eventY/temp_roc_rising_en
351 What: /sys/.../deviceX:eventY/temp_roc_falling_en
352 KernelVersion: 2.6.37
353 Contact: linux-iio@vger.kernel.org
355 Event generated when channel passes a threshold on the rate of
356 change (1st differential) in the specified (_rising|_falling)
357 direction. If the direction is not specified, then either the
358 device will report an event which ever direction a single
359 threshold value is called in (e.g.
360 <type>[Z][_name]_<raw|input>_roc_value) or
361 <type>[Z][_name]_<raw|input>_roc_rising_value and
362 <type>[Z][_name]_<raw|input>_roc_falling_value may take
363 different values, but the device can only enable both rate of
364 change thresholds or neither.
365 Note the driver will assume the last p events requested are
366 to be enabled where p is however many it supports (which may
367 vary depending on the exact set requested. So if you want to be
368 sure you have set what you think you have, check the contents of
369 these attributes after everything is configured. Drivers may
370 have to buffer any parameters so that they are consistent when
371 a given event type is enabled a future point (and not those for
372 whatever event was previously enabled).
374 What: /sys/.../deviceX:eventY/accel_x_raw_thresh_rising_value
375 What: /sys/.../deviceX:eventY/accel_x_raw_thresh_falling_value
376 What: /sys/.../deviceX:eventY/accel_y_raw_thresh_rising_value
377 What: /sys/.../deviceX:eventY/accel_y_raw_thresh_falling_value
378 What: /sys/.../deviceX:eventY/accel_z_raw_thresh_rising_value
379 What: /sys/.../deviceX:eventY/accel_z_raw_thresh_falling_value
380 What: /sys/.../deviceX:eventY/gyro_x_raw_thresh_rising_value
381 What: /sys/.../deviceX:eventY/gyro_x_raw_thresh_falling_value
382 What: /sys/.../deviceX:eventY/gyro_y_raw_thresh_rising_value
383 What: /sys/.../deviceX:eventY/gyro_y_raw_thresh_falling_value
384 What: /sys/.../deviceX:eventY/gyro_z_raw_thresh_rising_value
385 What: /sys/.../deviceX:eventY/gyro_z_raw_thresh_falling_value
386 What: /sys/.../deviceX:eventY/magn_x_raw_thresh_rising_value
387 What: /sys/.../deviceX:eventY/magn_x_raw_thresh_falling_value
388 What: /sys/.../deviceX:eventY/magn_y_raw_thresh_rising_value
389 What: /sys/.../deviceX:eventY/magn_y_raw_thresh_falling_value
390 What: /sys/.../deviceX:eventY/magn_z_raw_thresh_rising_value
391 What: /sys/.../deviceX:eventY/magn_z_raw_thresh_falling_value
392 What: /sys/.../deviceX:eventY/inZ_supply_raw_thresh_rising_value
393 What: /sys/.../deviceX:eventY/inZ_supply_raw_thresh_falling_value
394 What: /sys/.../deviceX:eventY/inZ_raw_thresh_falling_value
395 What: /sys/.../deviceX:eventY/inZ_raw_thresh_falling_value
396 What: /sys/.../deviceX:eventY/temp_raw_thresh_falling_value
397 What: /sys/.../deviceX:eventY/temp_raw_thresh_falling_value
398 KernelVersion: 2.6.37
399 Contact: linux-iio@vger.kernel.org
401 Specifies the value of threshold that the device is comparing
402 against for the events enabled by
403 <type>Z[_name]_thresh[_rising|falling]_en.
404 If separate attributes exist for the two directions, but
405 direction is not specified for this attribute, then a single
406 threshold value applies to both directions.
407 The raw or input element of the name indicates whether the
408 value is in raw device units or in processed units (as _raw
409 and _input do on sysfs direct channel read attributes).
411 What: /sys/.../deviceX:eventY/accel_x_raw_roc_rising_value
412 What: /sys/.../deviceX:eventY/accel_x_raw_roc_falling_value
413 What: /sys/.../deviceX:eventY/accel_y_raw_roc_rising_value
414 What: /sys/.../deviceX:eventY/accel_y_raw_roc_falling_value
415 What: /sys/.../deviceX:eventY/accel_z_raw_roc_rising_value
416 What: /sys/.../deviceX:eventY/accel_z_raw_roc_falling_value
417 What: /sys/.../deviceX:eventY/gyro_x_raw_roc_rising_value
418 What: /sys/.../deviceX:eventY/gyro_x_raw_roc_falling_value
419 What: /sys/.../deviceX:eventY/gyro_y_raw_roc_rising_value
420 What: /sys/.../deviceX:eventY/gyro_y_raw_roc_falling_value
421 What: /sys/.../deviceX:eventY/gyro_z_raw_roc_rising_value
422 What: /sys/.../deviceX:eventY/gyro_z_raw_roc_falling_value
423 What: /sys/.../deviceX:eventY/magn_x_raw_roc_rising_value
424 What: /sys/.../deviceX:eventY/magn_x_raw_roc_falling_value
425 What: /sys/.../deviceX:eventY/magn_y_raw_roc_rising_value
426 What: /sys/.../deviceX:eventY/magn_y_raw_roc_falling_value
427 What: /sys/.../deviceX:eventY/magn_z_raw_roc_rising_value
428 What: /sys/.../deviceX:eventY/magn_z_raw_roc_falling_value
429 What: /sys/.../deviceX:eventY/inZ_supply_raw_roc_rising_value
430 What: /sys/.../deviceX:eventY/inZ_supply_raw_roc_falling_value
431 What: /sys/.../deviceX:eventY/inZ_raw_roc_falling_value
432 What: /sys/.../deviceX:eventY/inZ_raw_roc_falling_value
433 What: /sys/.../deviceX:eventY/temp_raw_roc_falling_value
434 What: /sys/.../deviceX:eventY/temp_raw_roc_falling_value
435 KernelVersion: 2.6.37
436 Contact: linux-iio@vger.kernel.org
438 Specifies the value of rate of change threshold that the
439 device is comparing against for the events enabled by
440 <type>[Z][_name]_roc[_rising|falling]_en.
441 If separate attributes exist for the two directions,
442 but direction is not specified for this attribute,
443 then a single threshold value applies to both directions.
444 The raw or input element of the name indicates whether the
445 value is in raw device units or in processed units (as _raw
446 and _input do on sysfs direct channel read attributes).
448 What: /sys/.../deviceX:eventY/accel_x_thresh_rising_period
449 What: /sys/.../deviceX:eventY/accel_x_thresh_falling_period
450 hat: /sys/.../deviceX:eventY/accel_x_roc_rising_period
451 What: /sys/.../deviceX:eventY/accel_x_roc_falling_period
452 What: /sys/.../deviceX:eventY/accel_y_thresh_rising_period
453 What: /sys/.../deviceX:eventY/accel_y_thresh_falling_period
454 What: /sys/.../deviceX:eventY/accel_y_roc_rising_period
455 What: /sys/.../deviceX:eventY/accel_y_roc_falling_period
456 What: /sys/.../deviceX:eventY/accel_z_thresh_rising_period
457 What: /sys/.../deviceX:eventY/accel_z_thresh_falling_period
458 What: /sys/.../deviceX:eventY/accel_z_roc_rising_period
459 What: /sys/.../deviceX:eventY/accel_z_roc_falling_period
460 What: /sys/.../deviceX:eventY/gyro_x_thresh_rising_period
461 What: /sys/.../deviceX:eventY/gyro_x_thresh_falling_period
462 What: /sys/.../deviceX:eventY/gyro_x_roc_rising_period
463 What: /sys/.../deviceX:eventY/gyro_x_roc_falling_period
464 What: /sys/.../deviceX:eventY/gyro_y_thresh_rising_period
465 What: /sys/.../deviceX:eventY/gyro_y_thresh_falling_period
466 What: /sys/.../deviceX:eventY/gyro_y_roc_rising_period
467 What: /sys/.../deviceX:eventY/gyro_y_roc_falling_period
468 What: /sys/.../deviceX:eventY/gyro_z_thresh_rising_period
469 What: /sys/.../deviceX:eventY/gyro_z_thresh_falling_period
470 What: /sys/.../deviceX:eventY/gyro_z_roc_rising_period
471 What: /sys/.../deviceX:eventY/gyro_z_roc_falling_period
472 What: /sys/.../deviceX:eventY/magn_x_thresh_rising_period
473 What: /sys/.../deviceX:eventY/magn_x_thresh_falling_period
474 What: /sys/.../deviceX:eventY/magn_x_roc_rising_period
475 What: /sys/.../deviceX:eventY/magn_x_roc_falling_period
476 What: /sys/.../deviceX:eventY/magn_y_thresh_rising_period
477 What: /sys/.../deviceX:eventY/magn_y_thresh_falling_period
478 What: /sys/.../deviceX:eventY/magn_y_roc_rising_period
479 What: /sys/.../deviceX:eventY/magn_y_roc_falling_period
480 What: /sys/.../deviceX:eventY/magn_z_thresh_rising_period
481 What: /sys/.../deviceX:eventY/magn_z_thresh_falling_period
482 What: /sys/.../deviceX:eventY/magn_z_roc_rising_period
483 What: /sys/.../deviceX:eventY/magn_z_roc_falling_period
484 What: /sys/.../deviceX:eventY/inZ_supply_thresh_rising_period
485 What: /sys/.../deviceX:eventY/inZ_supply_thresh_falling_period
486 What: /sys/.../deviceX:eventY/inz_supply_roc_rising_period
487 What: /sys/.../deviceX:eventY/inZ_supply_roc_falling_period
488 What: /sys/.../deviceX:eventY/inZ_thresh_rising_period
489 What: /sys/.../deviceX:eventY/inZ_thresh_falling_period
490 What: /sys/.../deviceX:eventY/inZ_roc_rising_period
491 What: /sys/.../deviceX:eventY/inZ_roc_falling_period
492 What: /sys/.../deviceX:eventY/temp_thresh_rising_period
493 What: /sys/.../deviceX:eventY/temp_thresh_falling_period
494 What: /sys/.../deviceX:eventY/temp_roc_rising_period
495 What: /sys/.../deviceX:eventY/temp_roc_falling_period
496 What: /sys/.../deviceX:eventY/accel_x&y&z_mag_falling_period
497 KernelVersion: 2.6.37
498 Contact: linux-iio@vger.kernel.org
500 Period of time (in seconds) for which the condition must be
501 met before an event is generated. If direction is not
502 specified then this period applies to both directions.
504 What: /sys/.../deviceX:eventY/accel_mag_en
505 What: /sys/.../deviceX:eventY/accel_mag_rising_en
506 What: /sys/.../deviceX:eventY/accel_mag_falling_en
507 What: /sys/.../deviceX:eventY/accel_x_mag_en
508 What: /sys/.../deviceX:eventY/accel_x_mag_rising_en
509 What: /sys/.../deviceX:eventY/accel_x_mag_falling_en
510 What: /sys/.../deviceX:eventY/accel_y_mag_en
511 What: /sys/.../deviceX:eventY/accel_y_mag_rising_en
512 What: /sys/.../deviceX:eventY/accel_y_mag_falling_en
513 What: /sys/.../deviceX:eventY/accel_z_mag_en
514 What: /sys/.../deviceX:eventY/accel_z_mag_rising_en
515 What: /sys/.../deviceX:eventY/accel_z_mag_falling_en
516 What: /sys/.../deviceX:eventY/accel_x&y&z_mag_rising_en
517 What: /sys/.../deviceX:eventY/accel_x&y&z_mag_falling_en
518 KernelVersion: 2.6.37
519 Contact: linux-iio@vger.kernel.org
521 Similar to accel_x_thresh[_rising|_falling]_en, but here the
522 magnitude of the channel is compared to the threshold, not its
525 What: /sys/.../accel_raw_mag_value
526 What: /sys/.../accel_x_raw_mag_rising_value
527 What: /sys/.../accel_y_raw_mag_rising_value
528 What: /sys/.../accel_z_raw_mag_rising_value
529 KernelVersion: 2.6.37
530 Contact: linux-iio@vger.kernel.org
532 The value to which the magnitude of the channel is compared. If
533 number or direction is not specified, applies to all channels of
536 What: /sys/bus/iio/devices/deviceX:buffer:event/dev
537 KernelVersion: 2.6.35
538 Contact: linux-iio@vger.kernel.org
540 Buffer for device X event character device major:minor numbers.
542 What: /sys/bus/iio/devices/deviceX:buffer:access/dev
543 KernelVersion: 2.6.35
544 Contact: linux-iio@vger.kernel.org
546 Buffer for device X access character device major:minor numbers.
548 What: /sys/bus/iio/devices/deviceX:buffer/trigger
549 KernelVersion: 2.6.35
550 Contact: linux-iio@vger.kernel.org
552 The name of the trigger source being used, as per string given
553 in /sys/class/iio/triggerY/name.
555 What: /sys/bus/iio/devices/deviceX:buffer/length
556 KernelVersion: 2.6.35
557 Contact: linux-iio@vger.kernel.org
559 Number of scans contained by the buffer.
561 What: /sys/bus/iio/devices/deviceX:buffer/bytes_per_datum
562 KernelVersion: 2.6.37
563 Contact: linux-iio@vger.kernel.org
565 Bytes per scan. Due to alignment fun, the scan may be larger
566 than implied directly by the scan_element parameters.
568 What: /sys/bus/iio/devices/deviceX:buffer/enable
569 KernelVersion: 2.6.35
570 Contact: linux-iio@vger.kernel.org
572 Actually start the buffer capture up. Will start trigger
573 if first device and appropriate.
575 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements
576 KernelVersion: 2.6.37
577 Contact: linux-iio@vger.kernel.org
579 Directory containing interfaces for elements that will be
580 captured for a single triggered sample set in the buffer.
582 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_x_en
583 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_y_en
584 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_z_en
585 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_x_en
586 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_y_en
587 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_z_en
588 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_x_en
589 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_y_en
590 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_z_en
591 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/timestamp_en
592 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_supply_en
593 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_en
594 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY-inZ_en
595 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_x_en
596 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_y_en
597 KernelVersion: 2.6.37
598 Contact: linux-iio@vger.kernel.org
600 Scan element control for triggered data capture.
602 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_type
603 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_type
604 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_type
605 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_type
606 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_type
607 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/in-in_type
608 What: /sys/.../deviceX:buffer/scan_elements/inY_supply_type
609 What: /sys/.../deviceX:buffer/scan_elements/timestamp_type
610 KernelVersion: 2.6.37
611 Contact: linux-iio@vger.kernel.org
613 Description of the scan element data storage within the buffer
614 and hence the form in which it is read from user-space.
615 Form is [s|u]bits/storagebits[>>shift]. s or u specifies if
616 signed (2's complement) or unsigned. bits is the number of bits
617 of data and storagebits is the space (after padding) that it
618 occupies in the buffer. shift if specified, is the shift that
619 needs to be applied prior to masking out unused bits. Some
620 devices put their data in the middle of the transferred elements
621 with additional information on both sides. Note that some
622 devices will have additional information in the unused bits
623 so to get a clean value, the bits value must be used to mask
624 the buffer output value appropriately. The storagebits value
625 also specifies the data alignment. So s48/64>>2 will be a
626 signed 48 bit integer stored in a 64 bit location aligned to
627 a a64 bit boundary. To obtain the clean value, shift right 2
628 and apply a mask to zero the top 16 bits of the result.
629 For other storage combinations this attribute will be extended
632 What: /sys/.../deviceX:buffer/scan_elements/accel_type_available
633 KernelVersion: 2.6.37
634 Contact: linux-iio@vger.kernel.org
636 If the type parameter can take one of a small set of values,
637 this attribute lists them.
639 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_index
640 What: /sys/.../deviceX:buffer/scan_elements/inY_supply_index
641 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_x_index
642 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_y_index
643 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_z_index
644 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_x_index
645 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_y_index
646 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_z_index
647 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_x_index
648 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_y_index
649 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_z_index
650 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_x_index
651 What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_y_index
652 What: /sys/.../deviceX:buffer/scan_elements/timestamp_index
653 KernelVersion: 2.6.37
654 Contact: linux-iio@vger.kernel.org
656 A single positive integer specifying the position of this
657 scan element in the buffer. Note these are not dependent on
658 what is enabled and may not be contiguous. Thus for user-space
659 to establish the full layout these must be used in conjunction
660 with all _en attributes to establish which channels are present,
661 and the relevant _type attributes to establish the data storage