sysfs-bus-iio 33 KB

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  1. What: /sys/bus/iio/devices/iio:deviceX
  2. KernelVersion: 2.6.35
  3. Contact: linux-iio@vger.kernel.org
  4. Description:
  5. Hardware chip or device accessed by one communication port.
  6. Corresponds to a grouping of sensor channels. X is the IIO
  7. index of the device.
  8. What: /sys/bus/iio/devices/triggerX
  9. KernelVersion: 2.6.35
  10. Contact: linux-iio@vger.kernel.org
  11. Description:
  12. An event driven driver of data capture to an in kernel buffer.
  13. May be provided by a device driver that also has an IIO device
  14. based on hardware generated events (e.g. data ready) or
  15. provided by a separate driver for other hardware (e.g.
  16. periodic timer, GPIO or high resolution timer).
  17. Contains trigger type specific elements. These do not
  18. generalize well and hence are not documented in this file.
  19. X is the IIO index of the trigger.
  20. What: /sys/bus/iio/devices/iio:deviceX/buffer
  21. KernelVersion: 2.6.35
  22. Contact: linux-iio@vger.kernel.org
  23. Description:
  24. Directory of attributes relating to the buffer for the device.
  25. What: /sys/bus/iio/devices/iio:deviceX/name
  26. KernelVersion: 2.6.35
  27. Contact: linux-iio@vger.kernel.org
  28. Description:
  29. Description of the physical chip / device for device X.
  30. Typically a part number.
  31. What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency
  32. What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
  33. What: /sys/bus/iio/devices/triggerX/sampling_frequency
  34. KernelVersion: 2.6.35
  35. Contact: linux-iio@vger.kernel.org
  36. Description:
  37. Some devices have internal clocks. This parameter sets the
  38. resulting sampling frequency. In many devices this
  39. parameter has an effect on input filters etc rather than
  40. simply controlling when the input is sampled. As this
  41. effects datardy triggers, hardware buffers and the sysfs
  42. direct access interfaces, it may be found in any of the
  43. relevant directories. If it effects all of the above
  44. then it is to be found in the base device directory.
  45. What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
  46. What: /sys/.../iio:deviceX/buffer/sampling_frequency_available
  47. What: /sys/bus/iio/devices/triggerX/sampling_frequency_available
  48. KernelVersion: 2.6.35
  49. Contact: linux-iio@vger.kernel.org
  50. Description:
  51. When the internal sampling clock can only take a small
  52. discrete set of values, this file lists those available.
  53. What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio
  54. KernelVersion: 2.6.38
  55. Contact: linux-iio@vger.kernel.org
  56. Description:
  57. Hardware dependent ADC oversampling. Controls the sampling ratio
  58. of the digital filter if available.
  59. What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
  60. KernelVersion: 2.6.38
  61. Contact: linux-iio@vger.kernel.org
  62. Description:
  63. Hardware dependent values supported by the oversampling filter.
  64. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
  65. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
  66. KernelVersion: 2.6.35
  67. Contact: linux-iio@vger.kernel.org
  68. Description:
  69. Raw (unscaled no bias removal etc) voltage measurement from
  70. channel Y. In special cases where the channel does not
  71. correspond to externally available input one of the named
  72. versions may be used. The number must always be specified and
  73. unique to allow association with event codes. Units after
  74. application of scale and offset are microvolts.
  75. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
  76. KernelVersion: 2.6.35
  77. Contact: linux-iio@vger.kernel.org
  78. Description:
  79. Raw (unscaled) differential voltage measurement equivalent to
  80. channel Y - channel Z where these channel numbers apply to the
  81. physically equivalent inputs when non differential readings are
  82. separately available. In differential only parts, then all that
  83. is required is a consistent labeling. Units after application
  84. of scale and offset are microvolts.
  85. What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
  86. KernelVersion: 3.2
  87. Contact: linux-iio@vger.kernel.org
  88. Description:
  89. Raw capacitance measurement from channel Y. Units after
  90. application of scale and offset are nanofarads.
  91. What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
  92. KernelVersion: 3.2
  93. Contact: linux-iio@vger.kernel.org
  94. Description:
  95. Raw differential capacitance measurement equivalent to
  96. channel Y - channel Z where these channel numbers apply to the
  97. physically equivalent inputs when non differential readings are
  98. separately available. In differential only parts, then all that
  99. is required is a consistent labeling. Units after application
  100. of scale and offset are nanofarads.
  101. What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
  102. What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
  103. What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
  104. What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
  105. What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw
  106. KernelVersion: 2.6.35
  107. Contact: linux-iio@vger.kernel.org
  108. Description:
  109. Raw (unscaled no bias removal etc) temperature measurement.
  110. If an axis is specified it generally means that the temperature
  111. sensor is associated with one part of a compound device (e.g.
  112. a gyroscope axis). Units after application of scale and offset
  113. are milli degrees Celsuis.
  114. What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
  115. KernelVersion: 2.6.38
  116. Contact: linux-iio@vger.kernel.org
  117. Description:
  118. Scaled temperature measurement in milli degrees Celsius.
  119. What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
  120. What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
  121. What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
  122. KernelVersion: 2.6.35
  123. Contact: linux-iio@vger.kernel.org
  124. Description:
  125. Acceleration in direction x, y or z (may be arbitrarily assigned
  126. but should match other such assignments on device).
  127. Has all of the equivalent parameters as per voltageY. Units
  128. after application of scale and offset are m/s^2.
  129. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
  130. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
  131. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
  132. KernelVersion: 2.6.35
  133. Contact: linux-iio@vger.kernel.org
  134. Description:
  135. Angular velocity about axis x, y or z (may be arbitrarily
  136. assigned) Data converted by application of offset then scale to
  137. radians per second. Has all the equivalent parameters as
  138. per voltageY. Units after application of scale and offset are
  139. radians per second.
  140. What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
  141. What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
  142. What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
  143. KernelVersion: 2.6.35
  144. Contact: linux-iio@vger.kernel.org
  145. Description:
  146. Inclination raw reading about axis x, y or z (may be
  147. arbitrarily assigned). Data converted by application of offset
  148. and scale to Degrees.
  149. What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
  150. What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
  151. What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
  152. KernelVersion: 2.6.35
  153. Contact: linux-iio@vger.kernel.org
  154. Description:
  155. Magnetic field along axis x, y or z (may be arbitrarily
  156. assigned). Data converted by application of offset
  157. then scale to Gauss.
  158. What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
  159. What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
  160. What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
  161. KernelVersion: 2.6.36
  162. Contact: linux-iio@vger.kernel.org
  163. Description:
  164. Highest value since some reset condition. These
  165. attributes allow access to this and are otherwise
  166. the direct equivalent of the <type>Y[_name]_raw attributes.
  167. What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
  168. KernelVersion: 2.6.36
  169. Contact: linux-iio@vger.kernel.org
  170. Description:
  171. A computed peak value based on the sum squared magnitude of
  172. the underlying value in the specified directions.
  173. What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset
  174. What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
  175. What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
  176. What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
  177. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
  178. What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset
  179. What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset
  180. What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset
  181. KernelVersion: 2.6.35
  182. Contact: linux-iio@vger.kernel.org
  183. Description:
  184. If known for a device, offset to be added to <type>[Y]_raw prior
  185. to scaling by <type>[Y]_scale in order to obtain value in the
  186. <type> units as specified in <type>[y]_raw documentation.
  187. Not present if the offset is always 0 or unknown. If Y or
  188. axis <x|y|z> is not present, then the offset applies to all
  189. in channels of <type>.
  190. May be writable if a variable offset can be applied on the
  191. device. Note that this is different to calibbias which
  192. is for devices (or drivers) that apply offsets to compensate
  193. for variation between different instances of the part, typically
  194. adjusted by using some hardware supported calibration procedure.
  195. Calibbias is applied internally, offset is applied in userspace
  196. to the _raw output.
  197. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
  198. What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
  199. What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
  200. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
  201. What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
  202. What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
  203. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
  204. What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
  205. What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
  206. What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
  207. What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
  208. KernelVersion: 2.6.35
  209. Contact: linux-iio@vger.kernel.org
  210. Description:
  211. If known for a device, scale to be applied to <type>Y[_name]_raw
  212. post addition of <type>[Y][_name]_offset in order to obtain the
  213. measured value in <type> units as specified in
  214. <type>[Y][_name]_raw documentation. If shared across all in
  215. channels then Y and <x|y|z> are not present and the value is
  216. called <type>[Y][_name]_scale. The peak modifier means this
  217. value is applied to <type>Y[_name]_peak_raw values.
  218. What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
  219. What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
  220. What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
  221. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
  222. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
  223. What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
  224. What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
  225. What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
  226. KernelVersion: 2.6.35
  227. Contact: linux-iio@vger.kernel.org
  228. Description:
  229. Hardware applied calibration offset. (assumed to fix production
  230. inaccuracies).
  231. What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
  232. What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
  233. What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
  234. What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
  235. What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
  236. What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
  237. What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
  238. What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
  239. What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
  240. what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
  241. what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
  242. KernelVersion: 2.6.35
  243. Contact: linux-iio@vger.kernel.org
  244. Description:
  245. Hardware applied calibration scale factor. (assumed to fix
  246. production inaccuracies). If shared across all channels,
  247. <type>_calibscale is used.
  248. What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
  249. What: /sys/.../iio:deviceX/in_voltageX_scale_available
  250. What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
  251. What: /sys/.../iio:deviceX/out_voltageX_scale_available
  252. What: /sys/.../iio:deviceX/in_capacitance_scale_available
  253. KernelVersion: 2.635
  254. Contact: linux-iio@vger.kernel.org
  255. Description:
  256. If a discrete set of scale values are available, they
  257. are listed in this attribute.
  258. What: /sys/.../in_accel_filter_low_pass_3db_frequency
  259. What: /sys/.../in_magn_filter_low_pass_3db_frequency
  260. What: /sys/.../in_anglvel_filter_low_pass_3db_frequency
  261. KernelVersion: 3.2
  262. Contact: linux-iio@vger.kernel.org
  263. Description:
  264. If a known or controllable low pass filter is applied
  265. to the underlying data channel, then this parameter
  266. gives the 3dB frequency of the filter in Hz.
  267. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
  268. KernelVersion: 2.6.37
  269. Contact: linux-iio@vger.kernel.org
  270. Description:
  271. Raw (unscaled, no bias etc.) output voltage for
  272. channel Y. The number must always be specified and
  273. unique if the output corresponds to a single channel.
  274. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
  275. KernelVersion: 2.6.37
  276. Contact: linux-iio@vger.kernel.org
  277. Description:
  278. Raw (unscaled, no bias etc.) output voltage for an aggregate of
  279. channel Y, channel Z, etc. This interface is available in cases
  280. where a single output sets the value for multiple channels
  281. simultaneously.
  282. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
  283. What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
  284. KernelVersion: 2.6.38
  285. Contact: linux-iio@vger.kernel.org
  286. Description:
  287. Specifies the output powerdown mode.
  288. DAC output stage is disconnected from the amplifier and
  289. 1kohm_to_gnd: connected to ground via an 1kOhm resistor
  290. 100kohm_to_gnd: connected to ground via an 100kOhm resistor
  291. three_state: left floating
  292. For a list of available output power down options read
  293. outX_powerdown_mode_available. If Y is not present the
  294. mode is shared across all outputs.
  295. What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
  296. What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
  297. KernelVersion: 2.6.38
  298. Contact: linux-iio@vger.kernel.org
  299. Description:
  300. Lists all available output power down modes.
  301. If Y is not present the mode is shared across all outputs.
  302. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
  303. What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
  304. KernelVersion: 2.6.38
  305. Contact: linux-iio@vger.kernel.org
  306. Description:
  307. Writing 1 causes output Y to enter the power down mode specified
  308. by the corresponding outY_powerdown_mode. Clearing returns to
  309. normal operation. Y may be suppressed if all outputs are
  310. controlled together.
  311. What: /sys/bus/iio/devices/iio:deviceX/events
  312. KernelVersion: 2.6.35
  313. Contact: linux-iio@vger.kernel.org
  314. Description:
  315. Configuration of which hardware generated events are passed up
  316. to user-space.
  317. What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
  318. What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
  319. What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
  320. What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
  321. What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
  322. What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
  323. What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
  324. What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
  325. What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
  326. What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
  327. What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
  328. What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
  329. What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
  330. What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
  331. What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
  332. What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
  333. What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
  334. What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
  335. What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
  336. What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
  337. What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
  338. What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
  339. What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
  340. What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
  341. KernelVersion: 2.6.37
  342. Contact: linux-iio@vger.kernel.org
  343. Description:
  344. Event generated when channel passes a threshold in the specified
  345. (_rising|_falling) direction. If the direction is not specified,
  346. then either the device will report an event which ever direction
  347. a single threshold value is passed in (e.g.
  348. <type>[Y][_name]_<raw|input>_thresh_value) or
  349. <type>[Y][_name]_<raw|input>_thresh_rising_value and
  350. <type>[Y][_name]_<raw|input>_thresh_falling_value may take
  351. different values, but the device can only enable both thresholds
  352. or neither.
  353. Note the driver will assume the last p events requested are
  354. to be enabled where p is however many it supports (which may
  355. vary depending on the exact set requested. So if you want to be
  356. sure you have set what you think you have, check the contents of
  357. these attributes after everything is configured. Drivers may
  358. have to buffer any parameters so that they are consistent when
  359. a given event type is enabled a future point (and not those for
  360. whatever event was previously enabled).
  361. What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
  362. What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
  363. What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
  364. What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
  365. What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
  366. What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
  367. What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
  368. What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
  369. What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
  370. What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
  371. What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
  372. What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
  373. What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
  374. What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
  375. What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
  376. What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
  377. What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
  378. What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
  379. What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
  380. What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
  381. What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
  382. What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
  383. What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en
  384. What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en
  385. KernelVersion: 2.6.37
  386. Contact: linux-iio@vger.kernel.org
  387. Description:
  388. Event generated when channel passes a threshold on the rate of
  389. change (1st differential) in the specified (_rising|_falling)
  390. direction. If the direction is not specified, then either the
  391. device will report an event which ever direction a single
  392. threshold value is passed in (e.g.
  393. <type>[Y][_name]_<raw|input>_roc_value) or
  394. <type>[Y][_name]_<raw|input>_roc_rising_value and
  395. <type>[Y][_name]_<raw|input>_roc_falling_value may take
  396. different values, but the device can only enable both rate of
  397. change thresholds or neither.
  398. Note the driver will assume the last p events requested are
  399. to be enabled where p is however many it supports (which may
  400. vary depending on the exact set requested. So if you want to be
  401. sure you have set what you think you have, check the contents of
  402. these attributes after everything is configured. Drivers may
  403. have to buffer any parameters so that they are consistent when
  404. a given event type is enabled a future point (and not those for
  405. whatever event was previously enabled).
  406. What: /sys/.../events/in_accel_x_raw_thresh_rising_value
  407. What: /sys/.../events/in_accel_x_raw_thresh_falling_value
  408. What: /sys/.../events/in_accel_y_raw_thresh_rising_value
  409. What: /sys/.../events/in_accel_y_raw_thresh_falling_value
  410. What: /sys/.../events/in_accel_z_raw_thresh_rising_value
  411. What: /sys/.../events/in_accel_z_raw_thresh_falling_value
  412. What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value
  413. What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value
  414. What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value
  415. What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value
  416. What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value
  417. What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value
  418. What: /sys/.../events/in_magn_x_raw_thresh_rising_value
  419. What: /sys/.../events/in_magn_x_raw_thresh_falling_value
  420. What: /sys/.../events/in_magn_y_raw_thresh_rising_value
  421. What: /sys/.../events/in_magn_y_raw_thresh_falling_value
  422. What: /sys/.../events/in_magn_z_raw_thresh_rising_value
  423. What: /sys/.../events/in_magn_z_raw_thresh_falling_value
  424. What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
  425. What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
  426. What: /sys/.../events/in_voltageY_raw_thresh_rising_value
  427. What: /sys/.../events/in_voltageY_raw_thresh_falling_value
  428. What: /sys/.../events/in_tempY_raw_thresh_rising_value
  429. What: /sys/.../events/in_tempY_raw_thresh_falling_value
  430. What: /sys/.../events/in_illuminance0_thresh_falling_value
  431. what: /sys/.../events/in_illuminance0_thresh_rising_value
  432. what: /sys/.../events/in_proximity0_thresh_falling_value
  433. what: /sys/.../events/in_proximity0_thresh_rising_value
  434. KernelVersion: 2.6.37
  435. Contact: linux-iio@vger.kernel.org
  436. Description:
  437. Specifies the value of threshold that the device is comparing
  438. against for the events enabled by
  439. <type>Y[_name]_thresh[_rising|falling]_en.
  440. If separate attributes exist for the two directions, but
  441. direction is not specified for this attribute, then a single
  442. threshold value applies to both directions.
  443. The raw or input element of the name indicates whether the
  444. value is in raw device units or in processed units (as _raw
  445. and _input do on sysfs direct channel read attributes).
  446. What: /sys/.../events/in_accel_x_raw_roc_rising_value
  447. What: /sys/.../events/in_accel_x_raw_roc_falling_value
  448. What: /sys/.../events/in_accel_y_raw_roc_rising_value
  449. What: /sys/.../events/in_accel_y_raw_roc_falling_value
  450. What: /sys/.../events/in_accel_z_raw_roc_rising_value
  451. What: /sys/.../events/in_accel_z_raw_roc_falling_value
  452. What: /sys/.../events/in_anglvel_x_raw_roc_rising_value
  453. What: /sys/.../events/in_anglvel_x_raw_roc_falling_value
  454. What: /sys/.../events/in_anglvel_y_raw_roc_rising_value
  455. What: /sys/.../events/in_anglvel_y_raw_roc_falling_value
  456. What: /sys/.../events/in_anglvel_z_raw_roc_rising_value
  457. What: /sys/.../events/in_anglvel_z_raw_roc_falling_value
  458. What: /sys/.../events/in_magn_x_raw_roc_rising_value
  459. What: /sys/.../events/in_magn_x_raw_roc_falling_value
  460. What: /sys/.../events/in_magn_y_raw_roc_rising_value
  461. What: /sys/.../events/in_magn_y_raw_roc_falling_value
  462. What: /sys/.../events/in_magn_z_raw_roc_rising_value
  463. What: /sys/.../events/in_magn_z_raw_roc_falling_value
  464. What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
  465. What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
  466. What: /sys/.../events/in_voltageY_raw_roc_rising_value
  467. What: /sys/.../events/in_voltageY_raw_roc_falling_value
  468. What: /sys/.../events/in_tempY_raw_roc_rising_value
  469. What: /sys/.../events/in_tempY_raw_roc_falling_value
  470. KernelVersion: 2.6.37
  471. Contact: linux-iio@vger.kernel.org
  472. Description:
  473. Specifies the value of rate of change threshold that the
  474. device is comparing against for the events enabled by
  475. <type>[Y][_name]_roc[_rising|falling]_en.
  476. If separate attributes exist for the two directions,
  477. but direction is not specified for this attribute,
  478. then a single threshold value applies to both directions.
  479. The raw or input element of the name indicates whether the
  480. value is in raw device units or in processed units (as _raw
  481. and _input do on sysfs direct channel read attributes).
  482. What: /sys/.../events/in_accel_x_thresh_rising_period
  483. What: /sys/.../events/in_accel_x_thresh_falling_period
  484. hat: /sys/.../events/in_accel_x_roc_rising_period
  485. What: /sys/.../events/in_accel_x_roc_falling_period
  486. What: /sys/.../events/in_accel_y_thresh_rising_period
  487. What: /sys/.../events/in_accel_y_thresh_falling_period
  488. What: /sys/.../events/in_accel_y_roc_rising_period
  489. What: /sys/.../events/in_accel_y_roc_falling_period
  490. What: /sys/.../events/in_accel_z_thresh_rising_period
  491. What: /sys/.../events/in_accel_z_thresh_falling_period
  492. What: /sys/.../events/in_accel_z_roc_rising_period
  493. What: /sys/.../events/in_accel_z_roc_falling_period
  494. What: /sys/.../events/in_anglvel_x_thresh_rising_period
  495. What: /sys/.../events/in_anglvel_x_thresh_falling_period
  496. What: /sys/.../events/in_anglvel_x_roc_rising_period
  497. What: /sys/.../events/in_anglvel_x_roc_falling_period
  498. What: /sys/.../events/in_anglvel_y_thresh_rising_period
  499. What: /sys/.../events/in_anglvel_y_thresh_falling_period
  500. What: /sys/.../events/in_anglvel_y_roc_rising_period
  501. What: /sys/.../events/in_anglvel_y_roc_falling_period
  502. What: /sys/.../events/in_anglvel_z_thresh_rising_period
  503. What: /sys/.../events/in_anglvel_z_thresh_falling_period
  504. What: /sys/.../events/in_anglvel_z_roc_rising_period
  505. What: /sys/.../events/in_anglvel_z_roc_falling_period
  506. What: /sys/.../events/in_magn_x_thresh_rising_period
  507. What: /sys/.../events/in_magn_x_thresh_falling_period
  508. What: /sys/.../events/in_magn_x_roc_rising_period
  509. What: /sys/.../events/in_magn_x_roc_falling_period
  510. What: /sys/.../events/in_magn_y_thresh_rising_period
  511. What: /sys/.../events/in_magn_y_thresh_falling_period
  512. What: /sys/.../events/in_magn_y_roc_rising_period
  513. What: /sys/.../events/in_magn_y_roc_falling_period
  514. What: /sys/.../events/in_magn_z_thresh_rising_period
  515. What: /sys/.../events/in_magn_z_thresh_falling_period
  516. What: /sys/.../events/in_magn_z_roc_rising_period
  517. What: /sys/.../events/in_magn_z_roc_falling_period
  518. What: /sys/.../events/in_voltageY_supply_thresh_rising_period
  519. What: /sys/.../events/in_voltageY_supply_thresh_falling_period
  520. What: /sys/.../events/in_voltageY_supply_roc_rising_period
  521. What: /sys/.../events/in_voltageY_supply_roc_falling_period
  522. What: /sys/.../events/in_voltageY_thresh_rising_period
  523. What: /sys/.../events/in_voltageY_thresh_falling_period
  524. What: /sys/.../events/in_voltageY_roc_rising_period
  525. What: /sys/.../events/in_voltageY_roc_falling_period
  526. What: /sys/.../events/in_tempY_thresh_rising_period
  527. What: /sys/.../events/in_tempY_thresh_falling_period
  528. What: /sys/.../events/in_tempY_roc_rising_period
  529. What: /sys/.../events/in_tempY_roc_falling_period
  530. What: /sys/.../events/in_accel_x&y&z_mag_falling_period
  531. What: /sys/.../events/in_intensity0_thresh_period
  532. What: /sys/.../events/in_proximity0_thresh_period
  533. KernelVersion: 2.6.37
  534. Contact: linux-iio@vger.kernel.org
  535. Description:
  536. Period of time (in seconds) for which the condition must be
  537. met before an event is generated. If direction is not
  538. specified then this period applies to both directions.
  539. What: /sys/.../iio:deviceX/events/in_accel_mag_en
  540. What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en
  541. What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en
  542. What: /sys/.../iio:deviceX/events/in_accel_x_mag_en
  543. What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
  544. What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
  545. What: /sys/.../iio:deviceX/events/in_accel_y_mag_en
  546. What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
  547. What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
  548. What: /sys/.../iio:deviceX/events/in_accel_z_mag_en
  549. What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
  550. What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
  551. What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
  552. What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
  553. KernelVersion: 2.6.37
  554. Contact: linux-iio@vger.kernel.org
  555. Description:
  556. Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
  557. magnitude of the channel is compared to the threshold, not its
  558. signed value.
  559. What: /sys/.../events/in_accel_raw_mag_value
  560. What: /sys/.../events/in_accel_x_raw_mag_rising_value
  561. What: /sys/.../events/in_accel_y_raw_mag_rising_value
  562. What: /sys/.../events/in_accel_z_raw_mag_rising_value
  563. KernelVersion: 2.6.37
  564. Contact: linux-iio@vger.kernel.org
  565. Description:
  566. The value to which the magnitude of the channel is compared. If
  567. number or direction is not specified, applies to all channels of
  568. this type.
  569. What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
  570. KernelVersion: 2.6.35
  571. Contact: linux-iio@vger.kernel.org
  572. Description:
  573. The name of the trigger source being used, as per string given
  574. in /sys/class/iio/triggerY/name.
  575. What: /sys/bus/iio/devices/iio:deviceX/buffer/length
  576. KernelVersion: 2.6.35
  577. Contact: linux-iio@vger.kernel.org
  578. Description:
  579. Number of scans contained by the buffer.
  580. What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
  581. KernelVersion: 2.6.37
  582. Contact: linux-iio@vger.kernel.org
  583. Description:
  584. Bytes per scan. Due to alignment fun, the scan may be larger
  585. than implied directly by the scan_element parameters.
  586. What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
  587. KernelVersion: 2.6.35
  588. Contact: linux-iio@vger.kernel.org
  589. Description:
  590. Actually start the buffer capture up. Will start trigger
  591. if first device and appropriate.
  592. What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements
  593. KernelVersion: 2.6.37
  594. Contact: linux-iio@vger.kernel.org
  595. Description:
  596. Directory containing interfaces for elements that will be
  597. captured for a single triggered sample set in the buffer.
  598. What: /sys/.../buffer/scan_elements/in_accel_x_en
  599. What: /sys/.../buffer/scan_elements/in_accel_y_en
  600. What: /sys/.../buffer/scan_elements/in_accel_z_en
  601. What: /sys/.../buffer/scan_elements/in_anglvel_x_en
  602. What: /sys/.../buffer/scan_elements/in_anglvel_y_en
  603. What: /sys/.../buffer/scan_elements/in_anglvel_z_en
  604. What: /sys/.../buffer/scan_elements/in_magn_x_en
  605. What: /sys/.../buffer/scan_elements/in_magn_y_en
  606. What: /sys/.../buffer/scan_elements/in_magn_z_en
  607. What: /sys/.../buffer/scan_elements/in_timestamp_en
  608. What: /sys/.../buffer/scan_elements/in_voltageY_supply_en
  609. What: /sys/.../buffer/scan_elements/in_voltageY_en
  610. What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en
  611. What: /sys/.../buffer/scan_elements/in_incli_x_en
  612. What: /sys/.../buffer/scan_elements/in_incli_y_en
  613. KernelVersion: 2.6.37
  614. Contact: linux-iio@vger.kernel.org
  615. Description:
  616. Scan element control for triggered data capture.
  617. What: /sys/.../buffer/scan_elements/in_accel_type
  618. What: /sys/.../buffer/scan_elements/in_anglvel_type
  619. What: /sys/.../buffer/scan_elements/in_magn_type
  620. What: /sys/.../buffer/scan_elements/in_incli_type
  621. What: /sys/.../buffer/scan_elements/in_voltageY_type
  622. What: /sys/.../buffer/scan_elements/in_voltage-in_type
  623. What: /sys/.../buffer/scan_elements/in_voltageY_supply_type
  624. What: /sys/.../buffer/scan_elements/in_timestamp_type
  625. KernelVersion: 2.6.37
  626. Contact: linux-iio@vger.kernel.org
  627. Description:
  628. Description of the scan element data storage within the buffer
  629. and hence the form in which it is read from user-space.
  630. Form is [be|le]:[s|u]bits/storagebits[>>shift].
  631. be or le specifies big or little endian. s or u specifies if
  632. signed (2's complement) or unsigned. bits is the number of bits
  633. of data and storagebits is the space (after padding) that it
  634. occupies in the buffer. shift if specified, is the shift that
  635. needs to be applied prior to masking out unused bits. Some
  636. devices put their data in the middle of the transferred elements
  637. with additional information on both sides. Note that some
  638. devices will have additional information in the unused bits
  639. so to get a clean value, the bits value must be used to mask
  640. the buffer output value appropriately. The storagebits value
  641. also specifies the data alignment. So s48/64>>2 will be a
  642. signed 48 bit integer stored in a 64 bit location aligned to
  643. a a64 bit boundary. To obtain the clean value, shift right 2
  644. and apply a mask to zero the top 16 bits of the result.
  645. For other storage combinations this attribute will be extended
  646. appropriately.
  647. What: /sys/.../buffer/scan_elements/in_accel_type_available
  648. KernelVersion: 2.6.37
  649. Contact: linux-iio@vger.kernel.org
  650. Description:
  651. If the type parameter can take one of a small set of values,
  652. this attribute lists them.
  653. What: /sys/.../buffer/scan_elements/in_voltageY_index
  654. What: /sys/.../buffer/scan_elements/in_voltageY_supply_index
  655. What: /sys/.../buffer/scan_elements/in_accel_x_index
  656. What: /sys/.../buffer/scan_elements/in_accel_y_index
  657. What: /sys/.../buffer/scan_elements/in_accel_z_index
  658. What: /sys/.../buffer/scan_elements/in_anglvel_x_index
  659. What: /sys/.../buffer/scan_elements/in_anglvel_y_index
  660. What: /sys/.../buffer/scan_elements/in_anglvel_z_index
  661. What: /sys/.../buffer/scan_elements/in_magn_x_index
  662. What: /sys/.../buffer/scan_elements/in_magn_y_index
  663. What: /sys/.../buffer/scan_elements/in_magn_z_index
  664. What: /sys/.../buffer/scan_elements/in_incli_x_index
  665. What: /sys/.../buffer/scan_elements/in_incli_y_index
  666. What: /sys/.../buffer/scan_elements/in_timestamp_index
  667. KernelVersion: 2.6.37
  668. Contact: linux-iio@vger.kernel.org
  669. Description:
  670. A single positive integer specifying the position of this
  671. scan element in the buffer. Note these are not dependent on
  672. what is enabled and may not be contiguous. Thus for user-space
  673. to establish the full layout these must be used in conjunction
  674. with all _en attributes to establish which channels are present,
  675. and the relevant _type attributes to establish the data storage
  676. format.
  677. What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
  678. KernelVersion: 2.6.38
  679. Contact: linux-iio@vger.kernel.org
  680. Description:
  681. This attribute is used to read the amount of quadrature error
  682. present in the device at a given time.