1
What: /sys/bus/iio/devices/iio:deviceX
3
Contact: linux-iio@vger.kernel.org
5
Hardware chip or device accessed by one 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/iio:deviceX/buffer
24
Contact: linux-iio@vger.kernel.org
26
Directory of attributes relating to the buffer for the device.
28
What: /sys/bus/iio/devices/iio:deviceX/name
30
Contact: linux-iio@vger.kernel.org
32
Description of the physical chip / device for device X.
33
Typically a part number.
35
What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
36
What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
37
What: /sys/bus/iio/devices/triggerX/sampling_frequency
39
Contact: linux-iio@vger.kernel.org
41
Some devices have internal clocks. This parameter sets the
42
resulting sampling frequency. In many devices this
43
parameter has an effect on input filters etc rather than
44
simply controlling when the input is sampled. As this
45
effects datardy triggers, hardware buffers and the sysfs
46
direct access interfaces, it may be found in any of the
47
relevant directories. If it effects all of the above
48
then it is to be found in the base device directory.
50
What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
51
What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
52
What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
54
Contact: linux-iio@vger.kernel.org
56
When the internal sampling clock can only take a small
57
discrete set of values, this file lists those available.
59
What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
61
Contact: linux-iio@vger.kernel.org
63
Hardware dependent ADC oversampling. Controls the sampling ratio
64
of the digital filter if available.
66
What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
68
Contact: linux-iio@vger.kernel.org
70
Hardware dependent values supported by the oversampling filter.
72
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
73
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
75
Contact: linux-iio@vger.kernel.org
77
Raw (unscaled no bias removal etc) voltage measurement from
78
channel Y. In special cases where the channel does not
79
correspond to externally available input one of the named
80
versions may be used. The number must always be specified and
81
unique to allow association with event codes. Units after
82
application of scale and offset are microvolts.
84
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
86
Contact: linux-iio@vger.kernel.org
88
Raw (unscaled) differential voltage measurement equivalent to
89
channel Y - channel Z where these channel numbers apply to the
90
physically equivalent inputs when non differential readings are
91
separately available. In differential only parts, then all that
92
is required is a consistent labeling. Units after application
93
of scale and offset are microvolts.
95
What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
97
Contact: linux-iio@vger.kernel.org
99
Raw capacitance measurement from channel Y. Units after
100
application of scale and offset are nanofarads.
102
What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
104
Contact: linux-iio@vger.kernel.org
106
Raw differential capacitance measurement equivalent to
107
channel Y - channel Z where these channel numbers apply to the
108
physically equivalent inputs when non differential readings are
109
separately available. In differential only parts, then all that
110
is required is a consistent labeling. Units after application
111
of scale and offset are nanofarads.
113
What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
114
What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
115
What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
116
What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
117
What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw
118
KernelVersion: 2.6.35
119
Contact: linux-iio@vger.kernel.org
121
Raw (unscaled no bias removal etc) temperature measurement.
122
If an axis is specified it generally means that the temperature
123
sensor is associated with one part of a compound device (e.g.
124
a gyroscope axis). Units after application of scale and offset
125
are milli degrees Celsuis.
127
What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
128
KernelVersion: 2.6.38
129
Contact: linux-iio@vger.kernel.org
131
Scaled temperature measurement in milli degrees Celsius.
133
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
134
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
135
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
136
KernelVersion: 2.6.35
137
Contact: linux-iio@vger.kernel.org
139
Acceleration in direction x, y or z (may be arbitrarily assigned
140
but should match other such assignments on device).
141
Has all of the equivalent parameters as per voltageY. Units
142
after application of scale and offset are m/s^2.
144
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
145
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
146
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
147
KernelVersion: 2.6.35
148
Contact: linux-iio@vger.kernel.org
150
Angular velocity about axis x, y or z (may be arbitrarily
151
assigned) Data converted by application of offset then scale to
152
radians per second. Has all the equivalent parameters as
153
per voltageY. Units after application of scale and offset are
156
What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
157
What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
158
What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
159
KernelVersion: 2.6.35
160
Contact: linux-iio@vger.kernel.org
162
Inclination raw reading about axis x, y or z (may be
163
arbitrarily assigned). Data converted by application of offset
164
and scale to Degrees.
166
What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
167
What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
168
What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
169
KernelVersion: 2.6.35
170
Contact: linux-iio@vger.kernel.org
172
Magnetic field along axis x, y or z (may be arbitrarily
173
assigned). Data converted by application of offset
176
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
177
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
178
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
179
KernelVersion: 2.6.36
180
Contact: linux-iio@vger.kernel.org
182
Highest value since some reset condition. These
183
attributes allow access to this and are otherwise
184
the direct equivalent of the <type>Y[_name]_raw attributes.
186
What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
187
KernelVersion: 2.6.36
188
Contact: linux-iio@vger.kernel.org
190
A computed peak value based on the sum squared magnitude of
191
the underlying value in the specified directions.
193
What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
194
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
195
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
196
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
197
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
198
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
199
What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
200
What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
201
KernelVersion: 2.6.35
202
Contact: linux-iio@vger.kernel.org
204
If known for a device, offset to be added to <type>[Y]_raw prior
205
to scaling by <type>[Y]_scale in order to obtain value in the
206
<type> units as specified in <type>[y]_raw documentation.
207
Not present if the offset is always 0 or unknown. If Y or
208
axis <x|y|z> is not present, then the offset applies to all
209
in channels of <type>.
210
May be writable if a variable offset can be applied on the
211
device. Note that this is different to calibbias which
212
is for devices (or drivers) that apply offsets to compensate
213
for variation between different instances of the part, typically
214
adjusted by using some hardware supported calibration procedure.
215
Calibbias is applied internally, offset is applied in userspace
218
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
219
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
220
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
221
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
222
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
223
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
224
What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
225
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
226
What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
227
What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
228
What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
229
What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
230
KernelVersion: 2.6.35
231
Contact: linux-iio@vger.kernel.org
233
If known for a device, scale to be applied to <type>Y[_name]_raw
234
post addition of <type>[Y][_name]_offset in order to obtain the
235
measured value in <type> units as specified in
236
<type>[Y][_name]_raw documentation. If shared across all in
237
channels then Y and <x|y|z> are not present and the value is
238
called <type>[Y][_name]_scale. The peak modifier means this
239
value is applied to <type>Y[_name]_peak_raw values.
241
What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
242
What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
243
What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
244
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
245
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
246
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
247
What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
248
What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
249
KernelVersion: 2.6.35
250
Contact: linux-iio@vger.kernel.org
252
Hardware applied calibration offset. (assumed to fix production
255
What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
256
What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
257
What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
258
What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
259
What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
260
What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
261
What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
262
What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
263
What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
264
what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
265
what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
266
KernelVersion: 2.6.35
267
Contact: linux-iio@vger.kernel.org
269
Hardware applied calibration scale factor. (assumed to fix
270
production inaccuracies). If shared across all channels,
271
<type>_calibscale is used.
273
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
274
What: /sys/.../iio:deviceX/in_voltageX_scale_available
275
What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
276
What: /sys/.../iio:deviceX/out_voltageX_scale_available
277
What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
278
What: /sys/.../iio:deviceX/in_capacitance_scale_available
280
Contact: linux-iio@vger.kernel.org
282
If a discrete set of scale values are available, they
283
are listed in this attribute.
285
What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
286
KernelVersion: 2.6.35
287
Contact: linux-iio@vger.kernel.org
289
Hardware applied gain factor. If shared across all channels,
290
<type>_hardwaregain is used.
292
What: /sys/.../in_accel_filter_low_pass_3db_frequency
293
What: /sys/.../in_magn_filter_low_pass_3db_frequency
294
What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
296
Contact: linux-iio@vger.kernel.org
298
If a known or controllable low pass filter is applied
299
to the underlying data channel, then this parameter
300
gives the 3dB frequency of the filter in Hz.
302
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
303
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
304
KernelVersion: 2.6.37
305
Contact: linux-iio@vger.kernel.org
307
Raw (unscaled, no bias etc.) output voltage for
308
channel Y. The number must always be specified and
309
unique if the output corresponds to a single channel.
310
While DAC like devices typically use out_voltage,
311
a continuous frequency generating device, such as
312
a DDS or PLL should use out_altvoltage.
314
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
315
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
316
KernelVersion: 2.6.37
317
Contact: linux-iio@vger.kernel.org
319
Raw (unscaled, no bias etc.) output voltage for an aggregate of
320
channel Y, channel Z, etc. This interface is available in cases
321
where a single output sets the value for multiple channels
324
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
325
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
326
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
327
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
328
KernelVersion: 2.6.38
329
Contact: linux-iio@vger.kernel.org
331
Specifies the output powerdown mode.
332
DAC output stage is disconnected from the amplifier and
333
1kohm_to_gnd: connected to ground via an 1kOhm resistor
334
100kohm_to_gnd: connected to ground via an 100kOhm resistor
335
three_state: left floating
336
For a list of available output power down options read
337
outX_powerdown_mode_available. If Y is not present the
338
mode is shared across all outputs.
340
What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
341
What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
342
What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
343
What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
344
KernelVersion: 2.6.38
345
Contact: linux-iio@vger.kernel.org
347
Lists all available output power down modes.
348
If Y is not present the mode is shared across all outputs.
350
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
351
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
352
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
353
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
354
KernelVersion: 2.6.38
355
Contact: linux-iio@vger.kernel.org
357
Writing 1 causes output Y to enter the power down mode specified
358
by the corresponding outY_powerdown_mode. Clearing returns to
359
normal operation. Y may be suppressed if all outputs are
362
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
364
Contact: linux-iio@vger.kernel.org
366
Output frequency for channel Y in Hz. The number must always be
367
specified and unique if the output corresponds to a single
370
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
372
Contact: linux-iio@vger.kernel.org
374
Phase in radians of one frequency/clock output Y
375
(out_altvoltageY) relative to another frequency/clock output
376
(out_altvoltageZ) of the device X. The number must always be
377
specified and unique if the output corresponds to a single
380
What: /sys/bus/iio/devices/iio:deviceX/events
381
KernelVersion: 2.6.35
382
Contact: linux-iio@vger.kernel.org
384
Configuration of which hardware generated events are passed up
387
What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
388
What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
389
What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
390
What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
391
What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
392
What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
393
What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
394
What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
395
What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
396
What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
397
What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
398
What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
399
What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
400
What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
401
What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
402
What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
403
What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
404
What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
405
What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
406
What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
407
What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
408
What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
409
What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
410
What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
411
KernelVersion: 2.6.37
412
Contact: linux-iio@vger.kernel.org
414
Event generated when channel passes a threshold in the specified
415
(_rising|_falling) direction. If the direction is not specified,
416
then either the device will report an event which ever direction
417
a single threshold value is passed in (e.g.
418
<type>[Y][_name]_<raw|input>_thresh_value) or
419
<type>[Y][_name]_<raw|input>_thresh_rising_value and
420
<type>[Y][_name]_<raw|input>_thresh_falling_value may take
421
different values, but the device can only enable both thresholds
423
Note the driver will assume the last p events requested are
424
to be enabled where p is however many it supports (which may
425
vary depending on the exact set requested. So if you want to be
426
sure you have set what you think you have, check the contents of
427
these attributes after everything is configured. Drivers may
428
have to buffer any parameters so that they are consistent when
429
a given event type is enabled a future point (and not those for
430
whatever event was previously enabled).
432
What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
433
What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
434
What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
435
What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
436
What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
437
What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
438
What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
439
What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
440
What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
441
What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
442
What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
443
What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
444
What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
445
What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
446
What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
447
What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
448
What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
449
What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
450
What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
451
What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
452
What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
453
What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
454
What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
455
What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
456
KernelVersion: 2.6.37
457
Contact: linux-iio@vger.kernel.org
459
Event generated when channel passes a threshold on the rate of
460
change (1st differential) in the specified (_rising|_falling)
461
direction. If the direction is not specified, then either the
462
device will report an event which ever direction a single
463
threshold value is passed in (e.g.
464
<type>[Y][_name]_<raw|input>_roc_value) or
465
<type>[Y][_name]_<raw|input>_roc_rising_value and
466
<type>[Y][_name]_<raw|input>_roc_falling_value may take
467
different values, but the device can only enable both rate of
468
change thresholds or neither.
469
Note the driver will assume the last p events requested are
470
to be enabled where p is however many it supports (which may
471
vary depending on the exact set requested. So if you want to be
472
sure you have set what you think you have, check the contents of
473
these attributes after everything is configured. Drivers may
474
have to buffer any parameters so that they are consistent when
475
a given event type is enabled a future point (and not those for
476
whatever event was previously enabled).
478
What: /sys/.../events/in_accel_x_raw_thresh_rising_value
479
What: /sys/.../events/in_accel_x_raw_thresh_falling_value
480
What: /sys/.../events/in_accel_y_raw_thresh_rising_value
481
What: /sys/.../events/in_accel_y_raw_thresh_falling_value
482
What: /sys/.../events/in_accel_z_raw_thresh_rising_value
483
What: /sys/.../events/in_accel_z_raw_thresh_falling_value
484
What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
485
What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
486
What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
487
What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
488
What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
489
What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
490
What: /sys/.../events/in_magn_x_raw_thresh_rising_value
491
What: /sys/.../events/in_magn_x_raw_thresh_falling_value
492
What: /sys/.../events/in_magn_y_raw_thresh_rising_value
493
What: /sys/.../events/in_magn_y_raw_thresh_falling_value
494
What: /sys/.../events/in_magn_z_raw_thresh_rising_value
495
What: /sys/.../events/in_magn_z_raw_thresh_falling_value
496
What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
497
What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
498
What: /sys/.../events/in_voltageY_raw_thresh_rising_value
499
What: /sys/.../events/in_voltageY_raw_thresh_falling_value
500
What: /sys/.../events/in_tempY_raw_thresh_rising_value
501
What: /sys/.../events/in_tempY_raw_thresh_falling_value
502
What: /sys/.../events/in_illuminance0_thresh_falling_value
503
what: /sys/.../events/in_illuminance0_thresh_rising_value
504
what: /sys/.../events/in_proximity0_thresh_falling_value
505
what: /sys/.../events/in_proximity0_thresh_rising_value
506
KernelVersion: 2.6.37
507
Contact: linux-iio@vger.kernel.org
509
Specifies the value of threshold that the device is comparing
510
against for the events enabled by
511
<type>Y[_name]_thresh[_rising|falling]_en.
512
If separate attributes exist for the two directions, but
513
direction is not specified for this attribute, then a single
514
threshold value applies to both directions.
515
The raw or input element of the name indicates whether the
516
value is in raw device units or in processed units (as _raw
517
and _input do on sysfs direct channel read attributes).
519
What: /sys/.../events/in_accel_x_raw_roc_rising_value
520
What: /sys/.../events/in_accel_x_raw_roc_falling_value
521
What: /sys/.../events/in_accel_y_raw_roc_rising_value
522
What: /sys/.../events/in_accel_y_raw_roc_falling_value
523
What: /sys/.../events/in_accel_z_raw_roc_rising_value
524
What: /sys/.../events/in_accel_z_raw_roc_falling_value
525
What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
526
What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
527
What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
528
What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
529
What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
530
What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
531
What: /sys/.../events/in_magn_x_raw_roc_rising_value
532
What: /sys/.../events/in_magn_x_raw_roc_falling_value
533
What: /sys/.../events/in_magn_y_raw_roc_rising_value
534
What: /sys/.../events/in_magn_y_raw_roc_falling_value
535
What: /sys/.../events/in_magn_z_raw_roc_rising_value
536
What: /sys/.../events/in_magn_z_raw_roc_falling_value
537
What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
538
What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
539
What: /sys/.../events/in_voltageY_raw_roc_rising_value
540
What: /sys/.../events/in_voltageY_raw_roc_falling_value
541
What: /sys/.../events/in_tempY_raw_roc_rising_value
542
What: /sys/.../events/in_tempY_raw_roc_falling_value
543
KernelVersion: 2.6.37
544
Contact: linux-iio@vger.kernel.org
546
Specifies the value of rate of change threshold that the
547
device is comparing against for the events enabled by
548
<type>[Y][_name]_roc[_rising|falling]_en.
549
If separate attributes exist for the two directions,
550
but direction is not specified for this attribute,
551
then a single threshold value applies to both directions.
552
The raw or input element of the name indicates whether the
553
value is in raw device units or in processed units (as _raw
554
and _input do on sysfs direct channel read attributes).
556
What: /sys/.../events/in_accel_x_thresh_rising_period
557
What: /sys/.../events/in_accel_x_thresh_falling_period
558
hat: /sys/.../events/in_accel_x_roc_rising_period
559
What: /sys/.../events/in_accel_x_roc_falling_period
560
What: /sys/.../events/in_accel_y_thresh_rising_period
561
What: /sys/.../events/in_accel_y_thresh_falling_period
562
What: /sys/.../events/in_accel_y_roc_rising_period
563
What: /sys/.../events/in_accel_y_roc_falling_period
564
What: /sys/.../events/in_accel_z_thresh_rising_period
565
What: /sys/.../events/in_accel_z_thresh_falling_period
566
What: /sys/.../events/in_accel_z_roc_rising_period
567
What: /sys/.../events/in_accel_z_roc_falling_period
568
What: /sys/.../events/in_anglvel_x_thresh_rising_period
569
What: /sys/.../events/in_anglvel_x_thresh_falling_period
570
What: /sys/.../events/in_anglvel_x_roc_rising_period
571
What: /sys/.../events/in_anglvel_x_roc_falling_period
572
What: /sys/.../events/in_anglvel_y_thresh_rising_period
573
What: /sys/.../events/in_anglvel_y_thresh_falling_period
574
What: /sys/.../events/in_anglvel_y_roc_rising_period
575
What: /sys/.../events/in_anglvel_y_roc_falling_period
576
What: /sys/.../events/in_anglvel_z_thresh_rising_period
577
What: /sys/.../events/in_anglvel_z_thresh_falling_period
578
What: /sys/.../events/in_anglvel_z_roc_rising_period
579
What: /sys/.../events/in_anglvel_z_roc_falling_period
580
What: /sys/.../events/in_magn_x_thresh_rising_period
581
What: /sys/.../events/in_magn_x_thresh_falling_period
582
What: /sys/.../events/in_magn_x_roc_rising_period
583
What: /sys/.../events/in_magn_x_roc_falling_period
584
What: /sys/.../events/in_magn_y_thresh_rising_period
585
What: /sys/.../events/in_magn_y_thresh_falling_period
586
What: /sys/.../events/in_magn_y_roc_rising_period
587
What: /sys/.../events/in_magn_y_roc_falling_period
588
What: /sys/.../events/in_magn_z_thresh_rising_period
589
What: /sys/.../events/in_magn_z_thresh_falling_period
590
What: /sys/.../events/in_magn_z_roc_rising_period
591
What: /sys/.../events/in_magn_z_roc_falling_period
592
What: /sys/.../events/in_voltageY_supply_thresh_rising_period
593
What: /sys/.../events/in_voltageY_supply_thresh_falling_period
594
What: /sys/.../events/in_voltageY_supply_roc_rising_period
595
What: /sys/.../events/in_voltageY_supply_roc_falling_period
596
What: /sys/.../events/in_voltageY_thresh_rising_period
597
What: /sys/.../events/in_voltageY_thresh_falling_period
598
What: /sys/.../events/in_voltageY_roc_rising_period
599
What: /sys/.../events/in_voltageY_roc_falling_period
600
What: /sys/.../events/in_tempY_thresh_rising_period
601
What: /sys/.../events/in_tempY_thresh_falling_period
602
What: /sys/.../events/in_tempY_roc_rising_period
603
What: /sys/.../events/in_tempY_roc_falling_period
604
What: /sys/.../events/in_accel_x&y&z_mag_falling_period
605
What: /sys/.../events/in_intensity0_thresh_period
606
What: /sys/.../events/in_proximity0_thresh_period
607
KernelVersion: 2.6.37
608
Contact: linux-iio@vger.kernel.org
610
Period of time (in seconds) for which the condition must be
611
met before an event is generated. If direction is not
612
specified then this period applies to both directions.
614
What: /sys/.../iio:deviceX/events/in_accel_mag_en
615
What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
616
What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
617
What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
618
What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
619
What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
620
What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
621
What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
622
What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
623
What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
624
What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
625
What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
626
What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
627
What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
628
KernelVersion: 2.6.37
629
Contact: linux-iio@vger.kernel.org
631
Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
632
magnitude of the channel is compared to the threshold, not its
635
What: /sys/.../events/in_accel_raw_mag_value
636
What: /sys/.../events/in_accel_x_raw_mag_rising_value
637
What: /sys/.../events/in_accel_y_raw_mag_rising_value
638
What: /sys/.../events/in_accel_z_raw_mag_rising_value
639
KernelVersion: 2.6.37
640
Contact: linux-iio@vger.kernel.org
642
The value to which the magnitude of the channel is compared. If
643
number or direction is not specified, applies to all channels of
646
What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
647
KernelVersion: 2.6.35
648
Contact: linux-iio@vger.kernel.org
650
The name of the trigger source being used, as per string given
651
in /sys/class/iio/triggerY/name.
653
What: /sys/bus/iio/devices/iio:deviceX/buffer/length
654
KernelVersion: 2.6.35
655
Contact: linux-iio@vger.kernel.org
657
Number of scans contained by the buffer.
659
What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
660
KernelVersion: 2.6.37
661
Contact: linux-iio@vger.kernel.org
663
Bytes per scan. Due to alignment fun, the scan may be larger
664
than implied directly by the scan_element parameters.
666
What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
667
KernelVersion: 2.6.35
668
Contact: linux-iio@vger.kernel.org
670
Actually start the buffer capture up. Will start trigger
671
if first device and appropriate.
673
What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements
674
KernelVersion: 2.6.37
675
Contact: linux-iio@vger.kernel.org
677
Directory containing interfaces for elements that will be
678
captured for a single triggered sample set in the buffer.
680
What: /sys/.../buffer/scan_elements/in_accel_x_en
681
What: /sys/.../buffer/scan_elements/in_accel_y_en
682
What: /sys/.../buffer/scan_elements/in_accel_z_en
683
What: /sys/.../buffer/scan_elements/in_anglvel_x_en
684
What: /sys/.../buffer/scan_elements/in_anglvel_y_en
685
What: /sys/.../buffer/scan_elements/in_anglvel_z_en
686
What: /sys/.../buffer/scan_elements/in_magn_x_en
687
What: /sys/.../buffer/scan_elements/in_magn_y_en
688
What: /sys/.../buffer/scan_elements/in_magn_z_en
689
What: /sys/.../buffer/scan_elements/in_timestamp_en
690
What: /sys/.../buffer/scan_elements/in_voltageY_supply_en
691
What: /sys/.../buffer/scan_elements/in_voltageY_en
692
What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en
693
What: /sys/.../buffer/scan_elements/in_incli_x_en
694
What: /sys/.../buffer/scan_elements/in_incli_y_en
695
KernelVersion: 2.6.37
696
Contact: linux-iio@vger.kernel.org
698
Scan element control for triggered data capture.
700
What: /sys/.../buffer/scan_elements/in_accel_type
701
What: /sys/.../buffer/scan_elements/in_anglvel_type
702
What: /sys/.../buffer/scan_elements/in_magn_type
703
What: /sys/.../buffer/scan_elements/in_incli_type
704
What: /sys/.../buffer/scan_elements/in_voltageY_type
705
What: /sys/.../buffer/scan_elements/in_voltage-in_type
706
What: /sys/.../buffer/scan_elements/in_voltageY_supply_type
707
What: /sys/.../buffer/scan_elements/in_timestamp_type
708
KernelVersion: 2.6.37
709
Contact: linux-iio@vger.kernel.org
711
Description of the scan element data storage within the buffer
712
and hence the form in which it is read from user-space.
713
Form is [be|le]:[s|u]bits/storagebits[>>shift].
714
be or le specifies big or little endian. s or u specifies if
715
signed (2's complement) or unsigned. bits is the number of bits
716
of data and storagebits is the space (after padding) that it
717
occupies in the buffer. shift if specified, is the shift that
718
needs to be applied prior to masking out unused bits. Some
719
devices put their data in the middle of the transferred elements
720
with additional information on both sides. Note that some
721
devices will have additional information in the unused bits
722
so to get a clean value, the bits value must be used to mask
723
the buffer output value appropriately. The storagebits value
724
also specifies the data alignment. So s48/64>>2 will be a
725
signed 48 bit integer stored in a 64 bit location aligned to
726
a a64 bit boundary. To obtain the clean value, shift right 2
727
and apply a mask to zero the top 16 bits of the result.
728
For other storage combinations this attribute will be extended
731
What: /sys/.../buffer/scan_elements/in_accel_type_available
732
KernelVersion: 2.6.37
733
Contact: linux-iio@vger.kernel.org
735
If the type parameter can take one of a small set of values,
736
this attribute lists them.
738
What: /sys/.../buffer/scan_elements/in_voltageY_index
739
What: /sys/.../buffer/scan_elements/in_voltageY_supply_index
740
What: /sys/.../buffer/scan_elements/in_accel_x_index
741
What: /sys/.../buffer/scan_elements/in_accel_y_index
742
What: /sys/.../buffer/scan_elements/in_accel_z_index
743
What: /sys/.../buffer/scan_elements/in_anglvel_x_index
744
What: /sys/.../buffer/scan_elements/in_anglvel_y_index
745
What: /sys/.../buffer/scan_elements/in_anglvel_z_index
746
What: /sys/.../buffer/scan_elements/in_magn_x_index
747
What: /sys/.../buffer/scan_elements/in_magn_y_index
748
What: /sys/.../buffer/scan_elements/in_magn_z_index
749
What: /sys/.../buffer/scan_elements/in_incli_x_index
750
What: /sys/.../buffer/scan_elements/in_incli_y_index
751
What: /sys/.../buffer/scan_elements/in_timestamp_index
752
KernelVersion: 2.6.37
753
Contact: linux-iio@vger.kernel.org
755
A single positive integer specifying the position of this
756
scan element in the buffer. Note these are not dependent on
757
what is enabled and may not be contiguous. Thus for user-space
758
to establish the full layout these must be used in conjunction
759
with all _en attributes to establish which channels are present,
760
and the relevant _type attributes to establish the data storage
763
What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
764
KernelVersion: 2.6.38
765
Contact: linux-iio@vger.kernel.org
767
This attribute is used to read the amount of quadrature error
768
present in the device at a given time.
added
removed
Documentation/ABI/testing/sysfs-bus-iio
