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