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).
19 Contains trigger type specific elements. These do not
20 generalize well and hence are not documented in this file.
21 X is the IIO index of the trigger.
23 What: /sys/bus/iio/devices/iio:deviceX/buffer
25 Contact: linux-iio@vger.kernel.org
27 Directory of attributes relating to the buffer for the device.
29 What: /sys/bus/iio/devices/iio:deviceX/name
31 Contact: linux-iio@vger.kernel.org
33 Description of the physical chip / device for device X.
34 Typically a part number.
36 What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
38 Contact: linux-iio@vger.kernel.org
40 String identifying current posix clock used to timestamp
41 buffered samples and events for device X.
43 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
44 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
45 What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
46 What: /sys/bus/iio/devices/triggerX/sampling_frequency
48 Contact: linux-iio@vger.kernel.org
50 Some devices have internal clocks. This parameter sets the
51 resulting sampling frequency. In many devices this
52 parameter has an effect on input filters etc. rather than
53 simply controlling when the input is sampled. As this
54 affects data ready triggers, hardware buffers and the sysfs
55 direct access interfaces, it may be found in any of the
56 relevant directories. If it affects all of the above
57 then it is to be found in the base device directory.
59 What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
60 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
61 What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
62 What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
63 What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
65 Contact: linux-iio@vger.kernel.org
67 When the internal sampling clock can only take a specific set of
68 frequencies, we can specify the available values with:
70 - a small discrete set of values like "0 2 4 6 8"
71 - a range with minimum, step and maximum frequencies like
74 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
76 Contact: linux-iio@vger.kernel.org
78 Hardware dependent ADC oversampling. Controls the sampling ratio
79 of the digital filter if available.
81 What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
83 Contact: linux-iio@vger.kernel.org
85 Hardware dependent values supported by the oversampling filter.
87 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
88 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
89 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
90 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
92 Contact: linux-iio@vger.kernel.org
94 Raw (unscaled no bias removal etc.) voltage measurement from
95 channel Y. In special cases where the channel does not
96 correspond to externally available input one of the named
97 versions may be used. The number must always be specified and
98 unique to allow association with event codes. Units after
99 application of scale and offset are millivolts.
101 Channels with 'i' and 'q' modifiers always exist in pairs and both
102 channels refer to the same signal. The 'i' channel contains the in-phase
103 component of the signal while the 'q' channel contains the quadrature
106 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
107 KernelVersion: 2.6.35
108 Contact: linux-iio@vger.kernel.org
110 Raw (unscaled) differential voltage measurement equivalent to
111 channel Y - channel Z where these channel numbers apply to the
112 physically equivalent inputs when non differential readings are
113 separately available. In differential only parts, then all that
114 is required is a consistent labeling. Units after application
115 of scale and offset are millivolts.
117 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_raw
118 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
120 Contact: linux-iio@vger.kernel.org
122 Raw (unscaled no bias removal etc.) current measurement from
123 channel Y. In special cases where the channel does not
124 correspond to externally available input one of the named
125 versions may be used. The number must always be specified and
126 unique to allow association with event codes. Units after
127 application of scale and offset are milliamps.
129 What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
131 Contact: linux-iio@vger.kernel.org
133 Raw (unscaled no bias removal etc.) power measurement from
134 channel Y. The number must always be specified and
135 unique to allow association with event codes. Units after
136 application of scale and offset are milliwatts.
138 What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
140 Contact: linux-iio@vger.kernel.org
142 Raw capacitance measurement from channel Y. Units after
143 application of scale and offset are nanofarads.
145 What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
147 Contact: linux-iio@vger.kernel.org
149 Raw differential capacitance measurement equivalent to
150 channel Y - channel Z where these channel numbers apply to the
151 physically equivalent inputs when non differential readings are
152 separately available. In differential only parts, then all that
153 is required is a consistent labeling. Units after application
154 of scale and offset are nanofarads.
156 What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
157 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
158 What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
159 What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
160 What: /sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
161 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
162 KernelVersion: 2.6.35
163 Contact: linux-iio@vger.kernel.org
165 Raw (unscaled no bias removal etc.) temperature measurement.
166 If an axis is specified it generally means that the temperature
167 sensor is associated with one part of a compound device (e.g.
168 a gyroscope axis). The ambient and object modifiers distinguish
169 between ambient (reference) and distant temperature for contact-
170 less measurements. Units after application of scale and offset
171 are milli degrees Celsius.
173 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
174 KernelVersion: 2.6.38
175 Contact: linux-iio@vger.kernel.org
177 Scaled temperature measurement in milli degrees Celsius.
179 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
180 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
181 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
182 KernelVersion: 2.6.35
183 Contact: linux-iio@vger.kernel.org
185 Acceleration in direction x, y or z (may be arbitrarily assigned
186 but should match other such assignments on device).
187 Has all of the equivalent parameters as per voltageY. Units
188 after application of scale and offset are m/s^2.
190 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
191 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
192 What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
194 Contact: linux-iio@vger.kernel.org
196 Gravity in direction x, y or z (may be arbitrarily assigned
197 but should match other such assignments on device).
198 Units after application of scale and offset are m/s^2.
200 What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
202 Contact: linux-iio@vger.kernel.org
204 Angle of rotation. Units after application of scale and offset
207 What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
208 What: /sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
210 Contact: linux-iio@vger.kernel.org
212 Relative position in direction x or y on a pad (may be
213 arbitrarily assigned but should match other such assignments on
215 Units after application of scale and offset are milli percents
216 from the pad's size in both directions. Should be calibrated by
219 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
220 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
221 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
222 KernelVersion: 2.6.35
223 Contact: linux-iio@vger.kernel.org
225 Angular velocity about axis x, y or z (may be arbitrarily
226 assigned). Has all the equivalent parameters as per voltageY.
227 Units after application of scale and offset are radians per
230 What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
231 What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
232 What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
233 KernelVersion: 2.6.35
234 Contact: linux-iio@vger.kernel.org
236 Inclination raw reading about axis x, y or z (may be
237 arbitrarily assigned). Data converted by application of offset
238 and scale to degrees.
240 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
241 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
242 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
243 KernelVersion: 2.6.35
244 Contact: linux-iio@vger.kernel.org
246 Magnetic field along axis x, y or z (may be arbitrarily
247 assigned). Data converted by application of offset
250 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
251 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
252 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
253 KernelVersion: 2.6.36
254 Contact: linux-iio@vger.kernel.org
256 Highest value since some reset condition. These
257 attributes allow access to this and are otherwise
258 the direct equivalent of the <type>Y[_name]_raw attributes.
260 What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
261 KernelVersion: 2.6.36
262 Contact: linux-iio@vger.kernel.org
264 A computed peak value based on the sum squared magnitude of
265 the underlying value in the specified directions.
267 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
268 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_raw
270 Contact: linux-iio@vger.kernel.org
272 Raw pressure measurement from channel Y. Units after
273 application of scale and offset are kilopascal.
275 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_input
276 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_input
278 Contact: linux-iio@vger.kernel.org
280 Scaled pressure measurement from channel Y, in kilopascal.
282 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
284 Contact: linux-iio@vger.kernel.org
286 Raw humidity measurement of air. Units after application of
287 scale and offset are milli percent.
289 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
291 Contact: linux-iio@vger.kernel.org
293 Scaled humidity measurement in milli percent.
295 What: /sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
297 Contact: linux-iio@vger.kernel.org
299 Averaged raw measurement from channel X. The number of values
300 used for averaging is device specific. The converting rules for
301 normal raw values also applies to the averaged raw values.
303 What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
304 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
305 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
306 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
307 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
308 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
309 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
310 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
311 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
312 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
313 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_offset
314 What: /sys/bus/iio/devices/iio:deviceX/in_current_offset
315 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
316 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
317 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_offset
318 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_offset
319 What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
320 What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
321 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
322 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
323 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
324 What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
325 What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
326 What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
327 KernelVersion: 2.6.35
328 Contact: linux-iio@vger.kernel.org
330 If known for a device, offset to be added to <type>[Y]_raw prior
331 to scaling by <type>[Y]_scale in order to obtain value in the
332 <type> units as specified in <type>[Y]_raw documentation.
333 Not present if the offset is always 0 or unknown. If Y or
334 axis <x|y|z> is not present, then the offset applies to all
335 in channels of <type>.
336 May be writable if a variable offset can be applied on the
337 device. Note that this is different to calibbias which
338 is for devices (or drivers) that apply offsets to compensate
339 for variation between different instances of the part, typically
340 adjusted by using some hardware supported calibration procedure.
341 Calibbias is applied internally, offset is applied in userspace
344 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
345 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
346 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
347 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
348 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
349 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
350 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
351 What: /sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
352 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
353 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
354 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_scale
355 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
356 What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
357 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
358 What: /sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
359 What: /sys/bus/iio/devices/iio:deviceX/in_current_i_scale
360 What: /sys/bus/iio/devices/iio:deviceX/in_current_q_scale
361 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
362 What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
363 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
364 What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
365 What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
366 What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
367 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
368 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
369 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
370 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
371 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
372 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
373 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
374 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
375 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale
376 What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
377 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
378 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
379 What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
380 What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
381 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
382 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
383 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
384 KernelVersion: 2.6.35
385 Contact: linux-iio@vger.kernel.org
387 If known for a device, scale to be applied to <type>Y[_name]_raw
388 post addition of <type>[Y][_name]_offset in order to obtain the
389 measured value in <type> units as specified in
390 <type>[Y][_name]_raw documentation. If shared across all in
391 channels then Y and <x|y|z> are not present and the value is
392 called <type>[Y][_name]_scale. The peak modifier means this
393 value is applied to <type>Y[_name]_peak_raw values.
395 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
396 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
397 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
398 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
399 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
400 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
401 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
402 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
403 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
404 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
405 KernelVersion: 2.6.35
406 Contact: linux-iio@vger.kernel.org
408 Hardware applied calibration offset (assumed to fix production
411 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
412 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
413 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
414 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
415 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
416 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
417 What: /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
418 What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
419 What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
420 What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
421 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
422 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
423 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
424 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
425 What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
426 What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
427 What: /sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
428 What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
429 KernelVersion: 2.6.35
430 Contact: linux-iio@vger.kernel.org
432 Hardware applied calibration scale factor (assumed to fix
433 production inaccuracies). If shared across all channels,
434 <type>_calibscale is used.
436 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
437 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
438 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
439 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
441 Contact: linux-iio@vger.kernel.org
443 Gender of the user (e.g.: male, female) used by some pedometers
444 to compute the stride length, distance, speed and activity
447 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
448 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
449 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
450 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
452 Contact: linux-iio@vger.kernel.org
454 Lists all available gender values (e.g.: male, female).
456 What: /sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
457 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
458 What: /sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
459 What: /sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
461 Contact: linux-iio@vger.kernel.org
463 Height of the user (in meters) used by some pedometers
464 to compute the stride length, distance, speed and activity
467 What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
469 Contact: linux-iio@vger.kernel.org
471 Weight of the user (in kg). It is needed by some pedometers
472 to compute the calories burnt by the user.
474 What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
475 What: /sys/.../iio:deviceX/in_anglvel_scale_available
476 What: /sys/.../iio:deviceX/in_magn_scale_available
477 What: /sys/.../iio:deviceX/in_illuminance_scale_available
478 What: /sys/.../iio:deviceX/in_intensity_scale_available
479 What: /sys/.../iio:deviceX/in_proximity_scale_available
480 What: /sys/.../iio:deviceX/in_voltageX_scale_available
481 What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
482 What: /sys/.../iio:deviceX/out_voltageX_scale_available
483 What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
484 What: /sys/.../iio:deviceX/in_capacitance_scale_available
485 What: /sys/.../iio:deviceX/in_pressure_scale_available
486 What: /sys/.../iio:deviceX/in_pressureY_scale_available
487 KernelVersion: 2.6.35
488 Contact: linux-iio@vger.kernel.org
490 If a discrete set of scale values is available, they
491 are listed in this attribute.
493 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
494 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
495 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
496 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
497 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
498 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
499 KernelVersion: 2.6.35
500 Contact: linux-iio@vger.kernel.org
502 Hardware applied gain factor. If shared across all channels,
503 <type>_hardwaregain is used.
505 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
507 Contact: linux-iio@vger.kernel.org
509 Lists all available hardware applied gain factors. Shared across all
512 What: /sys/.../in_accel_filter_low_pass_3db_frequency
513 What: /sys/.../in_magn_filter_low_pass_3db_frequency
514 What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
516 Contact: linux-iio@vger.kernel.org
518 If a known or controllable low pass filter is applied
519 to the underlying data channel, then this parameter
520 gives the 3dB frequency of the filter in Hz.
522 What: /sys/.../in_accel_filter_high_pass_3db_frequency
523 What: /sys/.../in_anglvel_filter_high_pass_3db_frequency
524 What: /sys/.../in_magn_filter_high_pass_3db_frequency
526 Contact: linux-iio@vger.kernel.org
528 If a known or controllable high pass filter is applied
529 to the underlying data channel, then this parameter
530 gives the 3dB frequency of the filter in Hz.
532 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
533 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
534 KernelVersion: 2.6.37
535 Contact: linux-iio@vger.kernel.org
537 Raw (unscaled, no bias etc.) output voltage for
538 channel Y. The number must always be specified and
539 unique if the output corresponds to a single channel.
540 While DAC like devices typically use out_voltage,
541 a continuous frequency generating device, such as
542 a DDS or PLL should use out_altvoltage.
544 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
545 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
546 KernelVersion: 2.6.37
547 Contact: linux-iio@vger.kernel.org
549 Raw (unscaled, no bias etc.) output voltage for an aggregate of
550 channel Y, channel Z, etc. This interface is available in cases
551 where a single output sets the value for multiple channels
554 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
555 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
556 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
557 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
558 KernelVersion: 2.6.38
559 Contact: linux-iio@vger.kernel.org
561 Specifies the output powerdown mode.
562 DAC output stage is disconnected from the amplifier and
563 1kohm_to_gnd: connected to ground via an 1kOhm resistor,
564 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
565 6kohm_to_gnd: connected to ground via a 6kOhm resistor,
566 20kohm_to_gnd: connected to ground via a 20kOhm resistor,
567 90kohm_to_gnd: connected to ground via a 90kOhm resistor,
568 100kohm_to_gnd: connected to ground via an 100kOhm resistor,
569 125kohm_to_gnd: connected to ground via an 125kOhm resistor,
570 500kohm_to_gnd: connected to ground via a 500kOhm resistor,
571 640kohm_to_gnd: connected to ground via a 640kOhm resistor,
572 three_state: left floating.
573 For a list of available output power down options read
574 outX_powerdown_mode_available. If Y is not present the
575 mode is shared across all outputs.
577 What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
578 What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
579 What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
580 What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
581 KernelVersion: 2.6.38
582 Contact: linux-iio@vger.kernel.org
584 Lists all available output power down modes.
585 If Y is not present the mode is shared across all outputs.
587 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
588 What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
589 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
590 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
591 KernelVersion: 2.6.38
592 Contact: linux-iio@vger.kernel.org
594 Writing 1 causes output Y to enter the power down mode specified
595 by the corresponding outY_powerdown_mode. DAC output stage is
596 disconnected from the amplifier. Clearing returns to normal
597 operation. Y may be suppressed if all outputs are controlled
600 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
602 Contact: linux-iio@vger.kernel.org
604 Output frequency for channel Y in Hz. The number must always be
605 specified and unique if the output corresponds to a single
608 What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
610 Contact: linux-iio@vger.kernel.org
612 Phase in radians of one frequency/clock output Y
613 (out_altvoltageY) relative to another frequency/clock output
614 (out_altvoltageZ) of the device X. The number must always be
615 specified and unique if the output corresponds to a single
618 What: /sys/bus/iio/devices/iio:deviceX/events
619 KernelVersion: 2.6.35
620 Contact: linux-iio@vger.kernel.org
622 Configuration of which hardware generated events are passed up
625 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
626 What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
627 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
628 What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
629 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
630 What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
631 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
632 What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
633 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
634 What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
635 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
636 What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
637 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
638 What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
639 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
640 What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
641 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
642 What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
643 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
644 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
645 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
646 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
647 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
648 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
649 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
650 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
651 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
652 What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
653 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
654 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
655 What: /sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
656 What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
657 What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
658 KernelVersion: 2.6.37
659 Contact: linux-iio@vger.kernel.org
661 Event generated when channel passes a threshold in the specified
662 (_rising|_falling) direction. If the direction is not specified,
663 then either the device will report an event which ever direction
664 a single threshold value is passed in (e.g.
665 <type>[Y][_name]_<raw|input>_thresh_value) or
666 <type>[Y][_name]_<raw|input>_thresh_rising_value and
667 <type>[Y][_name]_<raw|input>_thresh_falling_value may take
668 different values, but the device can only enable both thresholds
671 Note the driver will assume the last p events requested are
672 to be enabled where p is how many it supports (which may vary
673 depending on the exact set requested. So if you want to be
674 sure you have set what you think you have, check the contents of
675 these attributes after everything is configured. Drivers may
676 have to buffer any parameters so that they are consistent when
677 a given event type is enabled at a future point (and not those for
678 whatever event was previously enabled).
680 What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
681 What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
682 What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
683 What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
684 What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
685 What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
686 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
687 What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
688 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
689 What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
690 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
691 What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
692 What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
693 What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
694 What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
695 What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
696 What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
697 What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
698 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
699 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
700 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
701 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
702 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
703 What: /sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
704 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
705 What: /sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
706 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
707 What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
708 What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
709 What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
710 What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
711 What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
712 KernelVersion: 2.6.37
713 Contact: linux-iio@vger.kernel.org
715 Event generated when channel passes a threshold on the rate of
716 change (1st differential) in the specified (_rising|_falling)
717 direction. If the direction is not specified, then either the
718 device will report an event which ever direction a single
719 threshold value is passed in (e.g.
720 <type>[Y][_name]_<raw|input>_roc_value) or
721 <type>[Y][_name]_<raw|input>_roc_rising_value and
722 <type>[Y][_name]_<raw|input>_roc_falling_value may take
723 different values, but the device can only enable both rate of
724 change thresholds or neither.
726 Note the driver will assume the last p events requested are
727 to be enabled where p is however many it supports (which may
728 vary depending on the exact set requested. So if you want to be
729 sure you have set what you think you have, check the contents of
730 these attributes after everything is configured. Drivers may
731 have to buffer any parameters so that they are consistent when
732 a given event type is enabled a future point (and not those for
733 whatever event was previously enabled).
735 What: /sys/.../events/in_accel_thresh_rising_value
736 What: /sys/.../events/in_accel_thresh_falling_value
737 What: /sys/.../events/in_accel_x_raw_thresh_rising_value
738 What: /sys/.../events/in_accel_x_raw_thresh_falling_value
739 What: /sys/.../events/in_accel_y_raw_thresh_rising_value
740 What: /sys/.../events/in_accel_y_raw_thresh_falling_value
741 What: /sys/.../events/in_accel_z_raw_thresh_rising_value
742 What: /sys/.../events/in_accel_z_raw_thresh_falling_value
743 What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
744 What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
745 What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
746 What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
747 What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
748 What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
749 What: /sys/.../events/in_magn_x_raw_thresh_rising_value
750 What: /sys/.../events/in_magn_x_raw_thresh_falling_value
751 What: /sys/.../events/in_magn_y_raw_thresh_rising_value
752 What: /sys/.../events/in_magn_y_raw_thresh_falling_value
753 What: /sys/.../events/in_magn_z_raw_thresh_rising_value
754 What: /sys/.../events/in_magn_z_raw_thresh_falling_value
755 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
756 What: /sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
757 What: /sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
758 What: /sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
759 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
760 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
761 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
762 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
763 What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
764 What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
765 What: /sys/.../events/in_voltageY_raw_thresh_rising_value
766 What: /sys/.../events/in_voltageY_raw_thresh_falling_value
767 What: /sys/.../events/in_tempY_raw_thresh_rising_value
768 What: /sys/.../events/in_tempY_raw_thresh_falling_value
769 What: /sys/.../events/in_illuminance0_thresh_falling_value
770 What: /sys/.../events/in_illuminance0_thresh_rising_value
771 What: /sys/.../events/in_proximity0_thresh_falling_value
772 What: /sys/.../events/in_proximity0_thresh_rising_value
773 What: /sys/.../events/in_illuminance_thresh_rising_value
774 What: /sys/.../events/in_illuminance_thresh_falling_value
775 KernelVersion: 2.6.37
776 Contact: linux-iio@vger.kernel.org
778 Specifies the value of threshold that the device is comparing
779 against for the events enabled by
780 <type>Y[_name]_thresh[_rising|falling]_en.
782 If separate attributes exist for the two directions, but
783 direction is not specified for this attribute, then a single
784 threshold value applies to both directions.
786 The raw or input element of the name indicates whether the
787 value is in raw device units or in processed units (as _raw
788 and _input do on sysfs direct channel read attributes).
790 What: /sys/.../events/in_accel_scale
791 What: /sys/.../events/in_accel_peak_scale
792 What: /sys/.../events/in_anglvel_scale
793 What: /sys/.../events/in_magn_scale
794 What: /sys/.../events/in_rot_from_north_magnetic_scale
795 What: /sys/.../events/in_rot_from_north_true_scale
796 What: /sys/.../events/in_voltage_scale
797 What: /sys/.../events/in_voltage_supply_scale
798 What: /sys/.../events/in_temp_scale
799 What: /sys/.../events/in_illuminance_scale
800 What: /sys/.../events/in_proximity_scale
802 Contact: linux-iio@vger.kernel.org
804 Specifies the conversion factor from the standard units
805 to device specific units used to set the event trigger
808 What: /sys/.../events/in_accel_x_thresh_rising_hysteresis
809 What: /sys/.../events/in_accel_x_thresh_falling_hysteresis
810 What: /sys/.../events/in_accel_x_thresh_either_hysteresis
811 What: /sys/.../events/in_accel_y_thresh_rising_hysteresis
812 What: /sys/.../events/in_accel_y_thresh_falling_hysteresis
813 What: /sys/.../events/in_accel_y_thresh_either_hysteresis
814 What: /sys/.../events/in_accel_z_thresh_rising_hysteresis
815 What: /sys/.../events/in_accel_z_thresh_falling_hysteresis
816 What: /sys/.../events/in_accel_z_thresh_either_hysteresis
817 What: /sys/.../events/in_anglvel_x_thresh_rising_hysteresis
818 What: /sys/.../events/in_anglvel_x_thresh_falling_hysteresis
819 What: /sys/.../events/in_anglvel_x_thresh_either_hysteresis
820 What: /sys/.../events/in_anglvel_y_thresh_rising_hysteresis
821 What: /sys/.../events/in_anglvel_y_thresh_falling_hysteresis
822 What: /sys/.../events/in_anglvel_y_thresh_either_hysteresis
823 What: /sys/.../events/in_anglvel_z_thresh_rising_hysteresis
824 What: /sys/.../events/in_anglvel_z_thresh_falling_hysteresis
825 What: /sys/.../events/in_anglvel_z_thresh_either_hysteresis
826 What: /sys/.../events/in_magn_x_thresh_rising_hysteresis
827 What: /sys/.../events/in_magn_x_thresh_falling_hysteresis
828 What: /sys/.../events/in_magn_x_thresh_either_hysteresis
829 What: /sys/.../events/in_magn_y_thresh_rising_hysteresis
830 What: /sys/.../events/in_magn_y_thresh_falling_hysteresis
831 What: /sys/.../events/in_magn_y_thresh_either_hysteresis
832 What: /sys/.../events/in_magn_z_thresh_rising_hysteresis
833 What: /sys/.../events/in_magn_z_thresh_falling_hysteresis
834 What: /sys/.../events/in_magn_z_thresh_either_hysteresis
835 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
836 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
837 What: /sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
838 What: /sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
839 What: /sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
840 What: /sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
841 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
842 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
843 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
844 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
845 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
846 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
847 What: /sys/.../events/in_voltageY_thresh_rising_hysteresis
848 What: /sys/.../events/in_voltageY_thresh_falling_hysteresis
849 What: /sys/.../events/in_voltageY_thresh_either_hysteresis
850 What: /sys/.../events/in_tempY_thresh_rising_hysteresis
851 What: /sys/.../events/in_tempY_thresh_falling_hysteresis
852 What: /sys/.../events/in_tempY_thresh_either_hysteresis
853 What: /sys/.../events/in_illuminance0_thresh_falling_hysteresis
854 What: /sys/.../events/in_illuminance0_thresh_rising_hysteresis
855 What: /sys/.../events/in_illuminance0_thresh_either_hysteresis
856 What: /sys/.../events/in_proximity0_thresh_falling_hysteresis
857 What: /sys/.../events/in_proximity0_thresh_rising_hysteresis
858 What: /sys/.../events/in_proximity0_thresh_either_hysteresis
860 Contact: linux-iio@vger.kernel.org
862 Specifies the hysteresis of threshold that the device is comparing
863 against for the events enabled by
864 <type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
865 If separate attributes exist for the two directions, but
866 direction is not specified for this attribute, then a single
867 hysteresis value applies to both directions.
869 For falling events the hysteresis is added to the _value attribute for
870 this event to get the upper threshold for when the event goes back to
871 normal, for rising events the hysteresis is subtracted from the _value
872 attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
873 and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
874 will get activated once in_voltage0_raw goes above 1200 and will become
875 deactivated again once the value falls below 1150.
877 What: /sys/.../events/in_accel_x_raw_roc_rising_value
878 What: /sys/.../events/in_accel_x_raw_roc_falling_value
879 What: /sys/.../events/in_accel_y_raw_roc_rising_value
880 What: /sys/.../events/in_accel_y_raw_roc_falling_value
881 What: /sys/.../events/in_accel_z_raw_roc_rising_value
882 What: /sys/.../events/in_accel_z_raw_roc_falling_value
883 What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
884 What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
885 What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
886 What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
887 What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
888 What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
889 What: /sys/.../events/in_magn_x_raw_roc_rising_value
890 What: /sys/.../events/in_magn_x_raw_roc_falling_value
891 What: /sys/.../events/in_magn_y_raw_roc_rising_value
892 What: /sys/.../events/in_magn_y_raw_roc_falling_value
893 What: /sys/.../events/in_magn_z_raw_roc_rising_value
894 What: /sys/.../events/in_magn_z_raw_roc_falling_value
895 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
896 What: /sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
897 What: /sys/.../events/in_rot_from_north_true_raw_roc_rising_value
898 What: /sys/.../events/in_rot_from_north_true_raw_roc_falling_value
899 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
900 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
901 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
902 What: /sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
903 What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
904 What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
905 What: /sys/.../events/in_voltageY_raw_roc_rising_value
906 What: /sys/.../events/in_voltageY_raw_roc_falling_value
907 What: /sys/.../events/in_tempY_raw_roc_rising_value
908 What: /sys/.../events/in_tempY_raw_roc_falling_value
909 KernelVersion: 2.6.37
910 Contact: linux-iio@vger.kernel.org
912 Specifies the value of rate of change threshold that the
913 device is comparing against for the events enabled by
914 <type>[Y][_name]_roc[_rising|falling]_en.
916 If separate attributes exist for the two directions,
917 but direction is not specified for this attribute,
918 then a single threshold value applies to both directions.
919 The raw or input element of the name indicates whether the
920 value is in raw device units or in processed units (as _raw
921 and _input do on sysfs direct channel read attributes).
923 What: /sys/.../events/in_accel_x_thresh_rising_period
924 What: /sys/.../events/in_accel_x_thresh_falling_period
925 What: /sys/.../events/in_accel_x_roc_rising_period
926 What: /sys/.../events/in_accel_x_roc_falling_period
927 What: /sys/.../events/in_accel_y_thresh_rising_period
928 What: /sys/.../events/in_accel_y_thresh_falling_period
929 What: /sys/.../events/in_accel_y_roc_rising_period
930 What: /sys/.../events/in_accel_y_roc_falling_period
931 What: /sys/.../events/in_accel_z_thresh_rising_period
932 What: /sys/.../events/in_accel_z_thresh_falling_period
933 What: /sys/.../events/in_accel_z_roc_rising_period
934 What: /sys/.../events/in_accel_z_roc_falling_period
935 What: /sys/.../events/in_anglvel_x_thresh_rising_period
936 What: /sys/.../events/in_anglvel_x_thresh_falling_period
937 What: /sys/.../events/in_anglvel_x_roc_rising_period
938 What: /sys/.../events/in_anglvel_x_roc_falling_period
939 What: /sys/.../events/in_anglvel_y_thresh_rising_period
940 What: /sys/.../events/in_anglvel_y_thresh_falling_period
941 What: /sys/.../events/in_anglvel_y_roc_rising_period
942 What: /sys/.../events/in_anglvel_y_roc_falling_period
943 What: /sys/.../events/in_anglvel_z_thresh_rising_period
944 What: /sys/.../events/in_anglvel_z_thresh_falling_period
945 What: /sys/.../events/in_anglvel_z_roc_rising_period
946 What: /sys/.../events/in_anglvel_z_roc_falling_period
947 What: /sys/.../events/in_magn_x_thresh_rising_period
948 What: /sys/.../events/in_magn_x_thresh_falling_period
949 What: /sys/.../events/in_magn_x_roc_rising_period
950 What: /sys/.../events/in_magn_x_roc_falling_period
951 What: /sys/.../events/in_magn_y_thresh_rising_period
952 What: /sys/.../events/in_magn_y_thresh_falling_period
953 What: /sys/.../events/in_magn_y_roc_rising_period
954 What: /sys/.../events/in_magn_y_roc_falling_period
955 What: /sys/.../events/in_magn_z_thresh_rising_period
956 What: /sys/.../events/in_magn_z_thresh_falling_period
957 What: /sys/.../events/in_magn_z_roc_rising_period
958 What: /sys/.../events/in_magn_z_roc_falling_period
959 What: /sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
960 What: /sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
961 What: /sys/.../events/in_rot_from_north_magnetic_roc_rising_period
962 What: /sys/.../events/in_rot_from_north_magnetic_roc_falling_period
963 What: /sys/.../events/in_rot_from_north_true_thresh_rising_period
964 What: /sys/.../events/in_rot_from_north_true_thresh_falling_period
965 What: /sys/.../events/in_rot_from_north_true_roc_rising_period
966 What: /sys/.../events/in_rot_from_north_true_roc_falling_period
967 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
968 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
969 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
970 What: /sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
971 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
972 What: /sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
973 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
974 What: /sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
975 What: /sys/.../events/in_voltageY_supply_thresh_rising_period
976 What: /sys/.../events/in_voltageY_supply_thresh_falling_period
977 What: /sys/.../events/in_voltageY_supply_roc_rising_period
978 What: /sys/.../events/in_voltageY_supply_roc_falling_period
979 What: /sys/.../events/in_voltageY_thresh_rising_period
980 What: /sys/.../events/in_voltageY_thresh_falling_period
981 What: /sys/.../events/in_voltageY_roc_rising_period
982 What: /sys/.../events/in_voltageY_roc_falling_period
983 What: /sys/.../events/in_tempY_thresh_rising_period
984 What: /sys/.../events/in_tempY_thresh_falling_period
985 What: /sys/.../events/in_tempY_roc_rising_period
986 What: /sys/.../events/in_tempY_roc_falling_period
987 What: /sys/.../events/in_accel_x&y&z_mag_falling_period
988 What: /sys/.../events/in_intensity0_thresh_period
989 What: /sys/.../events/in_proximity0_thresh_period
990 What: /sys/.../events/in_activity_still_thresh_rising_period
991 What: /sys/.../events/in_activity_still_thresh_falling_period
992 What: /sys/.../events/in_activity_walking_thresh_rising_period
993 What: /sys/.../events/in_activity_walking_thresh_falling_period
994 What: /sys/.../events/in_activity_jogging_thresh_rising_period
995 What: /sys/.../events/in_activity_jogging_thresh_falling_period
996 What: /sys/.../events/in_activity_running_thresh_rising_period
997 What: /sys/.../events/in_activity_running_thresh_falling_period
998 What: /sys/.../events/in_illuminance_thresh_either_period
999 KernelVersion: 2.6.37
1000 Contact: linux-iio@vger.kernel.org
1002 Period of time (in seconds) for which the condition must be
1003 met before an event is generated. If direction is not
1004 specified then this period applies to both directions.
1006 What: /sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
1007 What: /sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
1008 What: /sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
1010 Contact: linux-iio@vger.kernel.org
1012 If a low pass filter can be applied to the event generation
1013 this property gives its 3db frequency in Hz.
1014 A value of zero disables the filter.
1016 What: /sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
1017 What: /sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
1018 What: /sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
1020 Contact: linux-iio@vger.kernel.org
1022 If a high pass filter can be applied to the event generation
1023 this property gives its 3db frequency in Hz.
1024 A value of zero disables the filter.
1026 What: /sys/.../events/in_activity_still_thresh_rising_en
1027 What: /sys/.../events/in_activity_still_thresh_falling_en
1028 What: /sys/.../events/in_activity_walking_thresh_rising_en
1029 What: /sys/.../events/in_activity_walking_thresh_falling_en
1030 What: /sys/.../events/in_activity_jogging_thresh_rising_en
1031 What: /sys/.../events/in_activity_jogging_thresh_falling_en
1032 What: /sys/.../events/in_activity_running_thresh_rising_en
1033 What: /sys/.../events/in_activity_running_thresh_falling_en
1035 Contact: linux-iio@vger.kernel.org
1037 Enables or disables activity events. Depending on direction
1038 an event is generated when sensor ENTERS or LEAVES a given state.
1040 What: /sys/.../events/in_activity_still_thresh_rising_value
1041 What: /sys/.../events/in_activity_still_thresh_falling_value
1042 What: /sys/.../events/in_activity_walking_thresh_rising_value
1043 What: /sys/.../events/in_activity_walking_thresh_falling_value
1044 What: /sys/.../events/in_activity_jogging_thresh_rising_value
1045 What: /sys/.../events/in_activity_jogging_thresh_falling_value
1046 What: /sys/.../events/in_activity_running_thresh_rising_value
1047 What: /sys/.../events/in_activity_running_thresh_falling_value
1049 Contact: linux-iio@vger.kernel.org
1051 Confidence value (in units as percentage) to be used
1052 for deciding when an event should be generated. E.g for
1053 running: If the confidence value reported by the sensor
1054 is greater than in_activity_running_thresh_rising_value
1055 then the sensor ENTERS running state. Conversely, if the
1056 confidence value reported by the sensor is lower than
1057 in_activity_running_thresh_falling_value then the sensor
1058 is LEAVING running state.
1060 What: /sys/.../iio:deviceX/events/in_accel_mag_en
1061 What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
1062 What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
1063 What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
1064 What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
1065 What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
1066 What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
1067 What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
1068 What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
1069 What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
1070 What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
1071 What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
1072 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
1073 What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
1074 KernelVersion: 2.6.37
1075 Contact: linux-iio@vger.kernel.org
1077 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
1078 magnitude of the channel is compared to the threshold, not its
1081 What: /sys/.../events/in_accel_raw_mag_value
1082 What: /sys/.../events/in_accel_x_raw_mag_rising_value
1083 What: /sys/.../events/in_accel_y_raw_mag_rising_value
1084 What: /sys/.../events/in_accel_z_raw_mag_rising_value
1085 KernelVersion: 2.6.37
1086 Contact: linux-iio@vger.kernel.org
1088 The value to which the magnitude of the channel is compared. If
1089 number or direction is not specified, applies to all channels of
1092 What: /sys/.../events/in_steps_change_en
1094 Contact: linux-iio@vger.kernel.org
1096 Event generated when channel passes a threshold on the absolute
1097 change in value. E.g. for steps: a step change event is
1098 generated each time the user takes N steps, where N is set using
1099 in_steps_change_value.
1101 What: /sys/.../events/in_steps_change_value
1103 Contact: linux-iio@vger.kernel.org
1105 Specifies the value of change threshold that the
1106 device is comparing against for the events enabled by
1107 <type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
1108 if set to 3, a step change event will be generated every 3
1111 What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
1112 KernelVersion: 2.6.35
1113 Contact: linux-iio@vger.kernel.org
1115 The name of the trigger source being used, as per string given
1116 in /sys/class/iio/triggerY/name.
1118 What: /sys/bus/iio/devices/iio:deviceX/buffer/length
1119 KernelVersion: 2.6.35
1120 Contact: linux-iio@vger.kernel.org
1122 Number of scans contained by the buffer.
1124 What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
1125 KernelVersion: 2.6.35
1126 Contact: linux-iio@vger.kernel.org
1128 Actually start the buffer capture up. Will start trigger
1129 if first device and appropriate.
1131 What: /sys/bus/iio/devices/iio:deviceX/scan_elements
1132 KernelVersion: 2.6.37
1133 Contact: linux-iio@vger.kernel.org
1135 Directory containing interfaces for elements that will be
1136 captured for a single triggered sample set in the buffer.
1138 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
1139 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
1140 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
1141 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
1142 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
1143 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
1144 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
1145 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
1146 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
1147 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
1148 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
1149 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
1150 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
1151 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
1152 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
1153 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
1154 What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
1155 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
1156 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
1157 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
1158 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
1159 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
1160 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
1161 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
1162 What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
1163 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
1164 What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
1165 KernelVersion: 2.6.37
1166 Contact: linux-iio@vger.kernel.org
1168 Scan element control for triggered data capture.
1170 What: /sys/.../iio:deviceX/scan_elements/in_accel_type
1171 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
1172 What: /sys/.../iio:deviceX/scan_elements/in_magn_type
1173 What: /sys/.../iio:deviceX/scan_elements/in_incli_type
1174 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
1175 What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
1176 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
1177 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
1178 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
1179 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
1180 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
1181 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
1182 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
1183 What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
1184 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
1185 What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
1186 KernelVersion: 2.6.37
1187 Contact: linux-iio@vger.kernel.org
1189 Description of the scan element data storage within the buffer
1190 and hence the form in which it is read from user-space.
1191 Form is [be|le]:[s|u]bits/storagebits[>>shift].
1192 be or le specifies big or little endian. s or u specifies if
1193 signed (2's complement) or unsigned. bits is the number of bits
1194 of data and storagebits is the space (after padding) that it
1195 occupies in the buffer. shift if specified, is the shift that
1196 needs to be applied prior to masking out unused bits. Some
1197 devices put their data in the middle of the transferred elements
1198 with additional information on both sides. Note that some
1199 devices will have additional information in the unused bits
1200 so to get a clean value, the bits value must be used to mask
1201 the buffer output value appropriately. The storagebits value
1202 also specifies the data alignment. So s48/64>>2 will be a
1203 signed 48 bit integer stored in a 64 bit location aligned to
1204 a 64 bit boundary. To obtain the clean value, shift right 2
1205 and apply a mask to zero the top 16 bits of the result.
1206 For other storage combinations this attribute will be extended
1209 What: /sys/.../iio:deviceX/scan_elements/in_accel_type_available
1210 KernelVersion: 2.6.37
1211 Contact: linux-iio@vger.kernel.org
1213 If the type parameter can take one of a small set of values,
1214 this attribute lists them.
1216 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
1217 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
1218 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
1219 What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
1220 What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
1221 What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
1222 What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
1223 What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
1224 What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
1225 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
1226 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
1227 What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
1228 What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
1229 What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
1230 What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
1231 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
1232 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
1233 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
1234 What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
1235 What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
1236 What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
1237 What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
1238 What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
1239 What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
1240 What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
1241 What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
1242 KernelVersion: 2.6.37
1243 Contact: linux-iio@vger.kernel.org
1245 A single positive integer specifying the position of this
1246 scan element in the buffer. Note these are not dependent on
1247 what is enabled and may not be contiguous. Thus for user-space
1248 to establish the full layout these must be used in conjunction
1249 with all _en attributes to establish which channels are present,
1250 and the relevant _type attributes to establish the data storage
1253 What: /sys/.../iio:deviceX/in_activity_still_input
1254 What: /sys/.../iio:deviceX/in_activity_walking_input
1255 What: /sys/.../iio:deviceX/in_activity_jogging_input
1256 What: /sys/.../iio:deviceX/in_activity_running_input
1258 Contact: linux-iio@vger.kernel.org
1260 This attribute is used to read the confidence for an activity
1261 expressed in units as percentage.
1263 What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
1264 KernelVersion: 2.6.38
1265 Contact: linux-iio@vger.kernel.org
1267 This attribute is used to read the amount of quadrature error
1268 present in the device at a given time.
1270 What: /sys/.../iio:deviceX/in_accelX_power_mode
1272 Contact: linux-iio@vger.kernel.org
1274 Specifies the chip power mode.
1275 low_noise: reduce noise level from ADC,
1276 low_power: enable low current consumption.
1277 For a list of available output power modes read
1278 in_accel_power_mode_available.
1280 What: /sys/.../iio:deviceX/in_energy_input
1281 What: /sys/.../iio:deviceX/in_energy_raw
1283 Contact: linux-iio@vger.kernel.org
1285 This attribute is used to read the energy value reported by the
1286 device (e.g.: human activity sensors report energy burnt by the
1287 user). Units after application of scale are Joules.
1289 What: /sys/.../iio:deviceX/in_distance_input
1290 What: /sys/.../iio:deviceX/in_distance_raw
1292 Contact: linux-iio@vger.kernel.org
1294 This attribute is used to read the measured distance to an object
1295 or the distance covered by the user since the last reboot while
1296 activated. Units after application of scale are meters.
1298 What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
1299 KernelVersion: 3.4.0
1300 Contact: linux-iio@vger.kernel.org
1302 Writing '1' stores the current device configuration into
1303 on-chip EEPROM. After power-up or chip reset the device will
1304 automatically load the saved configuration.
1306 What: /sys/.../iio:deviceX/in_proximity_raw
1307 What: /sys/.../iio:deviceX/in_proximity_input
1308 What: /sys/.../iio:deviceX/in_proximityY_raw
1310 Contact: linux-iio@vger.kernel.org
1312 Proximity measurement indicating that some
1313 object is near the sensor, usually by observing
1314 reflectivity of infrared or ultrasound emitted.
1316 Often these sensors are unit less and as such conversion
1317 to SI units is not possible. Higher proximity measurements
1318 indicate closer objects, and vice versa. Units after
1319 application of scale and offset are meters.
1321 What: /sys/.../iio:deviceX/in_illuminance_input
1322 What: /sys/.../iio:deviceX/in_illuminance_raw
1323 What: /sys/.../iio:deviceX/in_illuminanceY_input
1324 What: /sys/.../iio:deviceX/in_illuminanceY_raw
1325 What: /sys/.../iio:deviceX/in_illuminanceY_mean_raw
1326 What: /sys/.../iio:deviceX/in_illuminance_ir_raw
1327 What: /sys/.../iio:deviceX/in_illuminance_clear_raw
1329 Contact: linux-iio@vger.kernel.org
1331 Illuminance measurement, units after application of scale
1334 What: /sys/.../iio:deviceX/in_intensityY_raw
1335 What: /sys/.../iio:deviceX/in_intensityY_ir_raw
1336 What: /sys/.../iio:deviceX/in_intensityY_both_raw
1337 What: /sys/.../iio:deviceX/in_intensityY_uv_raw
1338 What: /sys/.../iio:deviceX/in_intensityY_duv_raw
1340 Contact: linux-iio@vger.kernel.org
1342 Unit-less light intensity. Modifiers both and ir indicate
1343 that measurements contain visible and infrared light
1344 components or just infrared light, respectively. Modifier
1345 uv indicates that measurements contain ultraviolet light
1346 components. Modifier duv indicates that measurements
1347 contain deep ultraviolet light components.
1349 What: /sys/.../iio:deviceX/in_uvindex_input
1351 Contact: linux-iio@vger.kernel.org
1353 UV light intensity index measuring the human skin's response to
1354 different wavelength of sunlight weighted according to the
1355 standardised CIE Erythemal Action Spectrum. UV index values range
1356 from 0 (low) to >=11 (extreme).
1358 What: /sys/.../iio:deviceX/in_intensity_integration_time
1359 What: /sys/.../iio:deviceX/in_intensity_red_integration_time
1360 What: /sys/.../iio:deviceX/in_intensity_green_integration_time
1361 What: /sys/.../iio:deviceX/in_intensity_blue_integration_time
1362 What: /sys/.../iio:deviceX/in_intensity_clear_integration_time
1363 What: /sys/.../iio:deviceX/in_illuminance_integration_time
1365 Contact: linux-iio@vger.kernel.org
1367 This attribute is used to get/set the integration time in
1368 seconds. If shared across all channels of a given type,
1369 <type>_integration_time is used.
1371 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
1373 Contact: linux-iio@vger.kernel.org
1375 Number of seconds in which to compute speed.
1377 What: /sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
1379 Contact: linux-iio@vger.kernel.org
1381 Raw value of quaternion components using a format
1382 x y z w. Here x, y, and z component represents the axis about
1383 which a rotation will occur and w component represents the
1386 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
1387 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
1388 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
1389 What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
1391 Contact: linux-iio@vger.kernel.org
1393 Raw value of rotation from true/magnetic north measured with
1394 or without compensation from tilt sensors.
1396 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_raw
1397 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
1398 What: /sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
1400 Contact: linux-iio@vger.kernel.org
1402 Raw current measurement from channel X. Units are in milliamps
1403 after application of scale and offset. If no offset or scale is
1404 present, output should be considered as processed with the
1407 Channels with 'i' and 'q' modifiers always exist in pairs and both
1408 channels refer to the same signal. The 'i' channel contains the in-phase
1409 component of the signal while the 'q' channel contains the quadrature
1412 What: /sys/.../iio:deviceX/in_energy_en
1413 What: /sys/.../iio:deviceX/in_distance_en
1414 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
1415 What: /sys/.../iio:deviceX/in_steps_en
1417 Contact: linux-iio@vger.kernel.org
1419 Activates a device feature that runs in firmware/hardware.
1420 E.g. for steps: the pedometer saves power while not used;
1421 when activated, it will count the steps taken by the user in
1422 firmware and export them through in_steps_input.
1424 What: /sys/.../iio:deviceX/in_steps_input
1426 Contact: linux-iio@vger.kernel.org
1428 This attribute is used to read the number of steps taken by the user
1429 since the last reboot while activated.
1431 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
1432 What: /sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
1434 Contact: linux-iio@vger.kernel.org
1436 This attribute is used to read the current speed value of the
1437 user (which is the norm or magnitude of the velocity vector).
1438 Units after application of scale are m/s.
1440 What: /sys/.../iio:deviceX/in_steps_debounce_count
1442 Contact: linux-iio@vger.kernel.org
1444 Specifies the number of steps that must occur within
1445 in_steps_filter_debounce_time for the pedometer to decide the
1446 consumer is making steps.
1448 What: /sys/.../iio:deviceX/in_steps_debounce_time
1450 Contact: linux-iio@vger.kernel.org
1452 Specifies number of seconds in which we compute the steps
1453 that occur in order to decide if the consumer is making steps.
1455 What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
1457 Contact: linux-iio@vger.kernel.org
1459 A single positive integer specifying the maximum number of scan
1460 elements to wait for.
1462 Poll will block until the watermark is reached.
1464 Blocking read will wait until the minimum between the requested
1465 read amount or the low water mark is available.
1467 Non-blocking read will retrieve the available samples from the
1468 buffer even if there are less samples then watermark level. This
1469 allows the application to block on poll with a timeout and read
1470 the available samples after the timeout expires and thus have a
1471 maximum delay guarantee.
1473 What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available
1475 Contact: linux-iio@vger.kernel.org
1477 A read-only value indicating the bytes of data available in the
1478 buffer. In the case of an output buffer, this indicates the
1479 amount of empty space available to write data to. In the case of
1480 an input buffer, this indicates the amount of data available for
1483 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
1485 Contact: linux-iio@vger.kernel.org
1487 A read-only boolean value that indicates if the hardware fifo is
1488 currently enabled or disabled. If the device does not have a
1489 hardware fifo this entry is not present.
1490 The hardware fifo is enabled when the buffer is enabled if the
1491 current hardware fifo watermark level is set and other current
1492 device settings allows it (e.g. if a trigger is set that samples
1493 data differently that the hardware fifo does then hardware fifo
1496 If the hardware fifo is enabled and the level of the hardware
1497 fifo reaches the hardware fifo watermark level the device will
1498 flush its hardware fifo to the device buffer. Doing a non
1499 blocking read on the device when no samples are present in the
1500 device buffer will also force a flush.
1502 When the hardware fifo is enabled there is no need to use a
1503 trigger to use buffer mode since the watermark settings
1504 guarantees that the hardware fifo is flushed to the device
1507 What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
1509 Contact: linux-iio@vger.kernel.org
1511 A read/write property to provide capability to delay reporting of
1512 samples till a timeout is reached. This allows host processors to
1513 sleep, while the sensor is storing samples in its internal fifo.
1514 The maximum timeout in seconds can be specified by setting
1515 hwfifo_timeout.The current delay can be read by reading
1516 hwfifo_timeout. A value of 0 means that there is no timeout.
1518 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
1520 Contact: linux-iio@vger.kernel.org
1522 Read-only entry that contains a single integer specifying the
1523 current watermark level for the hardware fifo. If the device
1524 does not have a hardware fifo this entry is not present.
1525 The watermark level for the hardware fifo is set by the driver
1526 based on the value set by the user in buffer/watermark but
1527 taking into account hardware limitations (e.g. most hardware
1528 buffers are limited to 32-64 samples, some hardware buffers
1529 watermarks are fixed or have minimum levels). A value of 0
1530 means that the hardware watermark is unset.
1532 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
1534 Contact: linux-iio@vger.kernel.org
1536 A single positive integer specifying the minimum watermark level
1537 for the hardware fifo of this device. If the device does not
1538 have a hardware fifo this entry is not present.
1540 If the user sets buffer/watermark to a value less than this one,
1541 then the hardware watermark will remain unset.
1543 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
1545 Contact: linux-iio@vger.kernel.org
1547 A single positive integer specifying the maximum watermark level
1548 for the hardware fifo of this device. If the device does not
1549 have a hardware fifo this entry is not present.
1551 If the user sets buffer/watermark to a value greater than this
1552 one, then the hardware watermark will be capped at this value.
1554 What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
1556 Contact: linux-iio@vger.kernel.org
1558 A list of positive integers specifying the available watermark
1559 levels for the hardware fifo. This entry is optional and if it
1560 is not present it means that all the values between
1561 hwfifo_watermark_min and hwfifo_watermark_max are supported.
1563 If the user sets buffer/watermark to a value greater than
1564 hwfifo_watermak_min but not equal to any of the values in this
1565 list, the driver will chose an appropriate value for the
1566 hardware fifo watermark level.
1568 What: /sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
1569 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
1570 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
1571 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
1573 Contact: linux-iio@vger.kernel.org
1575 The emissivity ratio of the surface in the field of view of the
1576 contactless temperature sensor. Emissivity varies from 0 to 1,
1577 with 1 being the emissivity of a black body.
1579 What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
1580 What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
1581 What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
1583 Contact: linux-iio@vger.kernel.org
1585 Hardware applied number of measurements for acquiring one
1586 data point. The HW will do <type>[_name]_oversampling_ratio
1587 measurements and return the average value as output data. Each
1588 value resulted from <type>[_name]_oversampling_ratio measurements
1589 is considered as one sample for <type>[_name]_sampling_frequency.
1591 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_raw
1592 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
1593 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
1594 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
1595 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
1596 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
1597 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
1598 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
1599 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
1600 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
1601 What: /sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
1602 What: /sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
1604 Contact: linux-iio@vger.kernel.org
1606 Raw (unscaled no offset etc.) reading of a substance. Units
1607 after application of scale and offset are percents.
1609 What: /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
1610 What: /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
1611 What: /sys/bus/iio/devices/iio:deviceX/out_resistance_raw
1612 What: /sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
1614 Contact: linux-iio@vger.kernel.org
1616 Raw (unscaled no offset etc.) resistance reading that can be processed
1619 What: /sys/bus/iio/devices/iio:deviceX/heater_enable
1620 KernelVersion: 4.1.0
1621 Contact: linux-iio@vger.kernel.org
1623 '1' (enable) or '0' (disable) specifying the enable
1624 of heater function. Same reading values apply.
1626 This ABI is especially applicable for humidity sensors
1627 to heatup the device and get rid of any condensation
1628 in some humidity environment
1630 What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
1632 Contact: linux-iio@vger.kernel.org
1634 Raw (unscaled no offset etc.) pH reading of a substance as a negative
1635 base-10 logarithm of hydrodium ions in a litre of water.
1637 What: /sys/bus/iio/devices/iio:deviceX/mount_matrix
1638 What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
1639 What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
1640 What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
1641 What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
1643 Contact: linux-iio@vger.kernel.org
1645 Mounting matrix for IIO sensors. This is a rotation matrix which
1646 informs userspace about sensor chip's placement relative to the
1647 main hardware it is mounted on.
1649 Main hardware placement is defined according to the local
1650 reference frame related to the physical quantity the sensor
1653 Given that the rotation matrix is defined in a board specific
1654 way (platform data and / or device-tree), the main hardware
1655 reference frame definition is left to the implementor's choice
1656 (see below for a magnetometer example).
1658 Applications should apply this rotation matrix to samples so
1659 that when main hardware reference frame is aligned onto local
1660 reference frame, then sensor chip reference frame is also
1661 perfectly aligned with it.
1663 Matrix is a 3x3 unitary matrix and typically looks like
1664 [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
1665 [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
1666 are perfectly aligned with each other.
1668 For example, a mounting matrix for a magnetometer sensor informs
1669 userspace about sensor chip's ORIENTATION relative to the main
1672 More specifically, main hardware orientation is defined with
1673 respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
1675 * Y is in the ground plane and positive towards magnetic North ;
1676 * X is in the ground plane, perpendicular to the North axis and
1677 positive towards the East ;
1678 * Z is perpendicular to the ground plane and positive upwards.
1680 An implementor might consider that for a hand-held device, a
1681 'natural' orientation would be 'front facing camera at the top'.
1682 The main hardware reference frame could then be described as :
1684 * Y is in the plane of the screen and is positive towards the
1686 * X is in the plane of the screen, perpendicular to Y axis, and
1687 positive towards the right hand side of the screen ;
1688 * Z is perpendicular to the screen plane and positive out of the
1691 Another example for a quadrotor UAV might be :
1693 * Y is in the plane of the propellers and positive towards the
1695 * X is in the plane of the propellers, perpendicular to Y axis,
1696 and positive towards the starboard side of the UAV ;
1697 * Z is perpendicular to propellers plane and positive upwards.
1699 What: /sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
1701 Contact: linux-iio@vger.kernel.org
1703 Raw (unscaled no offset etc.) electric conductivity reading that
1704 can be processed to siemens per meter.
1706 What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
1708 Contact: linux-iio@vger.kernel.org
1710 This interface is deprecated; please use the Counter subsystem.
1712 Raw counter device counts from channel Y. For quadrature
1713 counters, multiplication by an available [Y]_scale results in
1714 the counts of a single quadrature signal phase from channel Y.
1716 What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
1718 Contact: linux-iio@vger.kernel.org
1720 This interface is deprecated; please use the Counter subsystem.
1722 Raw counter device index value from channel Y. This attribute
1723 provides an absolute positional reference (e.g. a pulse once per
1724 revolution) which may be used to home positional systems as
1727 What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
1729 Contact: linux-iio@vger.kernel.org
1731 This interface is deprecated; please use the Counter subsystem.
1733 A list of possible counting directions which are:
1735 - "up" : counter device is increasing.
1736 - "down": counter device is decreasing.
1738 What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
1740 Contact: linux-iio@vger.kernel.org
1742 This interface is deprecated; please use the Counter subsystem.
1744 Raw counter device counters direction for channel Y.
1746 What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_label
1747 What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_label
1749 Contact: linux-iio@vger.kernel.org
1751 Optional symbolic label to a device channel.
1752 If a label is defined for this channel add that to the channel
1753 specific attributes. This is useful for userspace to be able to
1754 better identify an individual channel.
1756 What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
1758 Contact: linux-iio@vger.kernel.org
1760 Raw (unscaled) phase difference reading from channel Y
1761 that can be processed to radians.
1763 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
1764 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
1765 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
1766 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
1767 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
1768 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
1769 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
1770 What: /sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
1772 Contact: linux-iio@vger.kernel.org
1774 Mass concentration reading of particulate matter in ug / m3.
1775 pmX consists of particles with aerodynamic diameter less or
1776 equal to X micrometers.
1778 What: /sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
1781 Contact: linux-iio@vger.kernel.org
1783 List of valid periods (in seconds) for which the light intensity
1784 must be above the threshold level before interrupt is asserted.
1786 What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
1788 Contact: linux-iio@vger.kernel.org
1790 Center frequency in Hz for a notch filter. Used i.e. for line
1793 What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
1795 Contact: linux-iio@vger.kernel.org
1797 One of the following thermocouple types: B, E, J, K, N, R, S, T.
1799 What: /sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
1800 What: /sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
1802 Contact: linux-iio@vger.kernel.org
1804 Calibrated ambient temperature for object temperature
1805 calculation in milli degrees Celsius.
1807 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
1808 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
1809 What: /sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
1811 Contact: linux-iio@vger.kernel.org
1813 Unscaled light intensity according to CIE 1931/DIN 5033 color space.
1814 Units after application of scale are nano nanowatts per square meter.
projects / linux-2.6-microblaze.git / blob