1What: /sys/bus/iio/devices/iio:deviceX 2KernelVersion: 2.6.35 3Contact: linux-iio@vger.kernel.org 4Description: 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 9What: /sys/bus/iio/devices/triggerX 10KernelVersion: 2.6.35 11Contact: linux-iio@vger.kernel.org 12Description: 13 An event driven driver of data capture to an in kernel buffer. 14 May be provided by a device driver that also has an IIO device 15 based on hardware generated events (e.g. data ready) or 16 provided by a separate driver for other hardware (e.g. 17 periodic timer, GPIO or high resolution timer). 18 Contains trigger type specific elements. These do not 19 generalize well and hence are not documented in this file. 20 X is the IIO index of the trigger. 21 22What: /sys/bus/iio/devices/iio:deviceX/buffer 23KernelVersion: 2.6.35 24Contact: linux-iio@vger.kernel.org 25Description: 26 Directory of attributes relating to the buffer for the device. 27 28What: /sys/bus/iio/devices/iio:deviceX/name 29KernelVersion: 2.6.35 30Contact: linux-iio@vger.kernel.org 31Description: 32 Description of the physical chip / device for device X. 33 Typically a part number. 34 35What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency 36What: /sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency 37What: /sys/bus/iio/devices/triggerX/sampling_frequency 38KernelVersion: 2.6.35 39Contact: linux-iio@vger.kernel.org 40Description: 41 Some devices have internal clocks. This parameter sets the 42 resulting sampling frequency. In many devices this 43 parameter has an effect on input filters etc. rather than 44 simply controlling when the input is sampled. As this 45 effects data ready triggers, hardware buffers and the sysfs 46 direct access interfaces, it may be found in any of the 47 relevant directories. If it effects all of the above 48 then it is to be found in the base device directory. 49 50What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available 51What: /sys/.../iio:deviceX/buffer/sampling_frequency_available 52What: /sys/bus/iio/devices/triggerX/sampling_frequency_available 53KernelVersion: 2.6.35 54Contact: linux-iio@vger.kernel.org 55Description: 56 When the internal sampling clock can only take a small 57 discrete set of values, this file lists those available. 58 59What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio 60KernelVersion: 2.6.38 61Contact: linux-iio@vger.kernel.org 62Description: 63 Hardware dependent ADC oversampling. Controls the sampling ratio 64 of the digital filter if available. 65 66What: /sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available 67KernelVersion: 2.6.38 68Contact: linux-iio@vger.kernel.org 69Description: 70 Hardware dependent values supported by the oversampling filter. 71 72What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_raw 73What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw 74KernelVersion: 2.6.35 75Contact: linux-iio@vger.kernel.org 76Description: 77 Raw (unscaled no bias removal etc.) voltage measurement from 78 channel Y. In special cases where the channel does not 79 correspond to externally available input one of the named 80 versions may be used. The number must always be specified and 81 unique to allow association with event codes. Units after 82 application of scale and offset are microvolts. 83 84What: /sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw 85KernelVersion: 2.6.35 86Contact: linux-iio@vger.kernel.org 87Description: 88 Raw (unscaled) differential voltage measurement equivalent to 89 channel Y - channel Z where these channel numbers apply to the 90 physically equivalent inputs when non differential readings are 91 separately available. In differential only parts, then all that 92 is required is a consistent labeling. Units after application 93 of scale and offset are microvolts. 94 95What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw 96KernelVersion: 3.2 97Contact: linux-iio@vger.kernel.org 98Description: 99 Raw capacitance measurement from channel Y. Units after 100 application of scale and offset are nanofarads. 101 102What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw 103KernelVersion: 3.2 104Contact: linux-iio@vger.kernel.org 105Description: 106 Raw differential capacitance measurement equivalent to 107 channel Y - channel Z where these channel numbers apply to the 108 physically equivalent inputs when non differential readings are 109 separately available. In differential only parts, then all that 110 is required is a consistent labeling. Units after application 111 of scale and offset are nanofarads. 112 113What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw 114What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw 115What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw 116What: /sys/bus/iio/devices/iio:deviceX/in_temp_y_raw 117What: /sys/bus/iio/devices/iio:deviceX/in_temp_z_raw 118KernelVersion: 2.6.35 119Contact: linux-iio@vger.kernel.org 120Description: 121 Raw (unscaled no bias removal etc.) temperature measurement. 122 If an axis is specified it generally means that the temperature 123 sensor is associated with one part of a compound device (e.g. 124 a gyroscope axis). Units after application of scale and offset 125 are milli degrees Celsius. 126 127What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input 128KernelVersion: 2.6.38 129Contact: linux-iio@vger.kernel.org 130Description: 131 Scaled temperature measurement in milli degrees Celsius. 132 133What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_raw 134What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_raw 135What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_raw 136KernelVersion: 2.6.35 137Contact: linux-iio@vger.kernel.org 138Description: 139 Acceleration in direction x, y or z (may be arbitrarily assigned 140 but should match other such assignments on device). 141 Has all of the equivalent parameters as per voltageY. Units 142 after application of scale and offset are m/s^2. 143 144What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw 145What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw 146What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw 147KernelVersion: 2.6.35 148Contact: linux-iio@vger.kernel.org 149Description: 150 Angular velocity about axis x, y or z (may be arbitrarily 151 assigned). Has all the equivalent parameters as per voltageY. 152 Units after application of scale and offset are radians per 153 second. 154 155What: /sys/bus/iio/devices/iio:deviceX/in_incli_x_raw 156What: /sys/bus/iio/devices/iio:deviceX/in_incli_y_raw 157What: /sys/bus/iio/devices/iio:deviceX/in_incli_z_raw 158KernelVersion: 2.6.35 159Contact: linux-iio@vger.kernel.org 160Description: 161 Inclination raw reading about axis x, y or z (may be 162 arbitrarily assigned). Data converted by application of offset 163 and scale to degrees. 164 165What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw 166What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw 167What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw 168KernelVersion: 2.6.35 169Contact: linux-iio@vger.kernel.org 170Description: 171 Magnetic field along axis x, y or z (may be arbitrarily 172 assigned). Data converted by application of offset 173 then scale to Gauss. 174 175What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw 176What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw 177What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw 178KernelVersion: 2.6.36 179Contact: linux-iio@vger.kernel.org 180Description: 181 Highest value since some reset condition. These 182 attributes allow access to this and are otherwise 183 the direct equivalent of the <type>Y[_name]_raw attributes. 184 185What: /sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw 186KernelVersion: 2.6.36 187Contact: linux-iio@vger.kernel.org 188Description: 189 A computed peak value based on the sum squared magnitude of 190 the underlying value in the specified directions. 191 192What: /sys/bus/iio/devices/iio:deviceX/in_accel_offset 193What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_offset 194What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_offset 195What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_offset 196What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_offset 197What: /sys/bus/iio/devices/iio:deviceX/in_voltage_offset 198What: /sys/bus/iio/devices/iio:deviceX/in_tempY_offset 199What: /sys/bus/iio/devices/iio:deviceX/in_temp_offset 200KernelVersion: 2.6.35 201Contact: linux-iio@vger.kernel.org 202Description: 203 If known for a device, offset to be added to <type>[Y]_raw prior 204 to scaling by <type>[Y]_scale in order to obtain value in the 205 <type> units as specified in <type>[Y]_raw documentation. 206 Not present if the offset is always 0 or unknown. If Y or 207 axis <x|y|z> is not present, then the offset applies to all 208 in channels of <type>. 209 May be writable if a variable offset can be applied on the 210 device. Note that this is different to calibbias which 211 is for devices (or drivers) that apply offsets to compensate 212 for variation between different instances of the part, typically 213 adjusted by using some hardware supported calibration procedure. 214 Calibbias is applied internally, offset is applied in userspace 215 to the _raw output. 216 217What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale 218What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale 219What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale 220What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale 221What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale 222What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale 223What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale 224What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale 225What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale 226What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale 227What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale 228What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale 229KernelVersion: 2.6.35 230Contact: linux-iio@vger.kernel.org 231Description: 232 If known for a device, scale to be applied to <type>Y[_name]_raw 233 post addition of <type>[Y][_name]_offset in order to obtain the 234 measured value in <type> units as specified in 235 <type>[Y][_name]_raw documentation. If shared across all in 236 channels then Y and <x|y|z> are not present and the value is 237 called <type>[Y][_name]_scale. The peak modifier means this 238 value is applied to <type>Y[_name]_peak_raw values. 239 240What: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias 241What: /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias 242What: /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias 243What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias 244What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias 245What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias 246What: /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias 247What: /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias 248KernelVersion: 2.6.35 249Contact: linux-iio@vger.kernel.org 250Description: 251 Hardware applied calibration offset (assumed to fix production 252 inaccuracies). 253 254What /sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale 255What /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale 256What /sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale 257What /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale 258What /sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale 259What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale 260What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale 261What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale 262What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale 263what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale 264what /sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale 265KernelVersion: 2.6.35 266Contact: linux-iio@vger.kernel.org 267Description: 268 Hardware applied calibration scale factor (assumed to fix 269 production inaccuracies). If shared across all channels, 270 <type>_calibscale is used. 271 272What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available 273What: /sys/.../iio:deviceX/in_voltageX_scale_available 274What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available 275What: /sys/.../iio:deviceX/out_voltageX_scale_available 276What: /sys/.../iio:deviceX/out_altvoltageX_scale_available 277What: /sys/.../iio:deviceX/in_capacitance_scale_available 278KernelVersion: 2.6.35 279Contact: linux-iio@vger.kernel.org 280Description: 281 If a discrete set of scale values is available, they 282 are listed in this attribute. 283 284What /sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain 285KernelVersion: 2.6.35 286Contact: linux-iio@vger.kernel.org 287Description: 288 Hardware applied gain factor. If shared across all channels, 289 <type>_hardwaregain is used. 290 291What: /sys/.../in_accel_filter_low_pass_3db_frequency 292What: /sys/.../in_magn_filter_low_pass_3db_frequency 293What: /sys/.../in_anglvel_filter_low_pass_3db_frequency 294KernelVersion: 3.2 295Contact: linux-iio@vger.kernel.org 296Description: 297 If a known or controllable low pass filter is applied 298 to the underlying data channel, then this parameter 299 gives the 3dB frequency of the filter in Hz. 300 301What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw 302What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw 303KernelVersion: 2.6.37 304Contact: linux-iio@vger.kernel.org 305Description: 306 Raw (unscaled, no bias etc.) output voltage for 307 channel Y. The number must always be specified and 308 unique if the output corresponds to a single channel. 309 While DAC like devices typically use out_voltage, 310 a continuous frequency generating device, such as 311 a DDS or PLL should use out_altvoltage. 312 313What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw 314What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw 315KernelVersion: 2.6.37 316Contact: linux-iio@vger.kernel.org 317Description: 318 Raw (unscaled, no bias etc.) output voltage for an aggregate of 319 channel Y, channel Z, etc. This interface is available in cases 320 where a single output sets the value for multiple channels 321 simultaneously. 322 323What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode 324What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode 325What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode 326What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode 327KernelVersion: 2.6.38 328Contact: linux-iio@vger.kernel.org 329Description: 330 Specifies the output powerdown mode. 331 DAC output stage is disconnected from the amplifier and 332 1kohm_to_gnd: connected to ground via an 1kOhm resistor, 333 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 334 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 335 100kohm_to_gnd: connected to ground via an 100kOhm resistor, 336 three_state: left floating. 337 For a list of available output power down options read 338 outX_powerdown_mode_available. If Y is not present the 339 mode is shared across all outputs. 340 341What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available 342What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available 343What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available 344What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available 345KernelVersion: 2.6.38 346Contact: linux-iio@vger.kernel.org 347Description: 348 Lists all available output power down modes. 349 If Y is not present the mode is shared across all outputs. 350 351What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown 352What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown 353What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown 354What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown 355KernelVersion: 2.6.38 356Contact: linux-iio@vger.kernel.org 357Description: 358 Writing 1 causes output Y to enter the power down mode specified 359 by the corresponding outY_powerdown_mode. DAC output stage is 360 disconnected from the amplifier. Clearing returns to normal 361 operation. Y may be suppressed if all outputs are controlled 362 together. 363 364What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency 365KernelVersion: 3.4.0 366Contact: linux-iio@vger.kernel.org 367Description: 368 Output frequency for channel Y in Hz. The number must always be 369 specified and unique if the output corresponds to a single 370 channel. 371 372What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase 373KernelVersion: 3.4.0 374Contact: linux-iio@vger.kernel.org 375Description: 376 Phase in radians of one frequency/clock output Y 377 (out_altvoltageY) relative to another frequency/clock output 378 (out_altvoltageZ) of the device X. The number must always be 379 specified and unique if the output corresponds to a single 380 channel. 381 382What: /sys/bus/iio/devices/iio:deviceX/events 383KernelVersion: 2.6.35 384Contact: linux-iio@vger.kernel.org 385Description: 386 Configuration of which hardware generated events are passed up 387 to user-space. 388 389What: /sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en 390What: /sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en 391What: /sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en 392What: /sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en 393What: /sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en 394What: /sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en 395What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en 396What: /sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en 397What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en 398What: /sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en 399What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en 400What: /sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en 401What: /sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en 402What: /sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en 403What: /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en 404What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en 405What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en 406What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en 407What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en 408What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en 409What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en 410What: /sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en 411What: /sys/.../iio:deviceX/events/in_tempY_thresh_rising_en 412What: /sys/.../iio:deviceX/events/in_tempY_thresh_falling_en 413KernelVersion: 2.6.37 414Contact: linux-iio@vger.kernel.org 415Description: 416 Event generated when channel passes a threshold in the specified 417 (_rising|_falling) direction. If the direction is not specified, 418 then either the device will report an event which ever direction 419 a single threshold value is passed in (e.g. 420 <type>[Y][_name]_<raw|input>_thresh_value) or 421 <type>[Y][_name]_<raw|input>_thresh_rising_value and 422 <type>[Y][_name]_<raw|input>_thresh_falling_value may take 423 different values, but the device can only enable both thresholds 424 or neither. 425 Note the driver will assume the last p events requested are 426 to be enabled where p is how many it supports (which may vary 427 depending on the exact set requested. So if you want to be 428 sure you have set what you think you have, check the contents of 429 these attributes after everything is configured. Drivers may 430 have to buffer any parameters so that they are consistent when 431 a given event type is enabled at a future point (and not those for 432 whatever event was previously enabled). 433 434What: /sys/.../iio:deviceX/events/in_accel_x_roc_rising_en 435What: /sys/.../iio:deviceX/events/in_accel_x_roc_falling_en 436What: /sys/.../iio:deviceX/events/in_accel_y_roc_rising_en 437What: /sys/.../iio:deviceX/events/in_accel_y_roc_falling_en 438What: /sys/.../iio:deviceX/events/in_accel_z_roc_rising_en 439What: /sys/.../iio:deviceX/events/in_accel_z_roc_falling_en 440What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en 441What: /sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en 442What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en 443What: /sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en 444What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en 445What: /sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en 446What: /sys/.../iio:deviceX/events/in_magn_x_roc_rising_en 447What: /sys/.../iio:deviceX/events/in_magn_x_roc_falling_en 448What: /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en 449What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en 450What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en 451What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en 452What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en 453What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en 454What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en 455What: /sys/.../iio:deviceX/events/in_voltageY_roc_falling_en 456What: /sys/.../iio:deviceX/events/in_tempY_roc_rising_en 457What: /sys/.../iio:deviceX/events/in_tempY_roc_falling_en 458KernelVersion: 2.6.37 459Contact: linux-iio@vger.kernel.org 460Description: 461 Event generated when channel passes a threshold on the rate of 462 change (1st differential) in the specified (_rising|_falling) 463 direction. If the direction is not specified, then either the 464 device will report an event which ever direction a single 465 threshold value is passed in (e.g. 466 <type>[Y][_name]_<raw|input>_roc_value) or 467 <type>[Y][_name]_<raw|input>_roc_rising_value and 468 <type>[Y][_name]_<raw|input>_roc_falling_value may take 469 different values, but the device can only enable both rate of 470 change thresholds or neither. 471 Note the driver will assume the last p events requested are 472 to be enabled where p is however many it supports (which may 473 vary depending on the exact set requested. So if you want to be 474 sure you have set what you think you have, check the contents of 475 these attributes after everything is configured. Drivers may 476 have to buffer any parameters so that they are consistent when 477 a given event type is enabled a future point (and not those for 478 whatever event was previously enabled). 479 480What: /sys/.../events/in_accel_x_raw_thresh_rising_value 481What: /sys/.../events/in_accel_x_raw_thresh_falling_value 482What: /sys/.../events/in_accel_y_raw_thresh_rising_value 483What: /sys/.../events/in_accel_y_raw_thresh_falling_value 484What: /sys/.../events/in_accel_z_raw_thresh_rising_value 485What: /sys/.../events/in_accel_z_raw_thresh_falling_value 486What: /sys/.../events/in_anglvel_x_raw_thresh_rising_value 487What: /sys/.../events/in_anglvel_x_raw_thresh_falling_value 488What: /sys/.../events/in_anglvel_y_raw_thresh_rising_value 489What: /sys/.../events/in_anglvel_y_raw_thresh_falling_value 490What: /sys/.../events/in_anglvel_z_raw_thresh_rising_value 491What: /sys/.../events/in_anglvel_z_raw_thresh_falling_value 492What: /sys/.../events/in_magn_x_raw_thresh_rising_value 493What: /sys/.../events/in_magn_x_raw_thresh_falling_value 494What: /sys/.../events/in_magn_y_raw_thresh_rising_value 495What: /sys/.../events/in_magn_y_raw_thresh_falling_value 496What: /sys/.../events/in_magn_z_raw_thresh_rising_value 497What: /sys/.../events/in_magn_z_raw_thresh_falling_value 498What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value 499What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value 500What: /sys/.../events/in_voltageY_raw_thresh_rising_value 501What: /sys/.../events/in_voltageY_raw_thresh_falling_value 502What: /sys/.../events/in_tempY_raw_thresh_rising_value 503What: /sys/.../events/in_tempY_raw_thresh_falling_value 504What: /sys/.../events/in_illuminance0_thresh_falling_value 505what: /sys/.../events/in_illuminance0_thresh_rising_value 506what: /sys/.../events/in_proximity0_thresh_falling_value 507what: /sys/.../events/in_proximity0_thresh_rising_value 508KernelVersion: 2.6.37 509Contact: linux-iio@vger.kernel.org 510Description: 511 Specifies the value of threshold that the device is comparing 512 against for the events enabled by 513 <type>Y[_name]_thresh[_rising|falling]_en. 514 If separate attributes exist for the two directions, but 515 direction is not specified for this attribute, then a single 516 threshold value applies to both directions. 517 The raw or input element of the name indicates whether the 518 value is in raw device units or in processed units (as _raw 519 and _input do on sysfs direct channel read attributes). 520 521What: /sys/.../events/in_accel_x_raw_roc_rising_value 522What: /sys/.../events/in_accel_x_raw_roc_falling_value 523What: /sys/.../events/in_accel_y_raw_roc_rising_value 524What: /sys/.../events/in_accel_y_raw_roc_falling_value 525What: /sys/.../events/in_accel_z_raw_roc_rising_value 526What: /sys/.../events/in_accel_z_raw_roc_falling_value 527What: /sys/.../events/in_anglvel_x_raw_roc_rising_value 528What: /sys/.../events/in_anglvel_x_raw_roc_falling_value 529What: /sys/.../events/in_anglvel_y_raw_roc_rising_value 530What: /sys/.../events/in_anglvel_y_raw_roc_falling_value 531What: /sys/.../events/in_anglvel_z_raw_roc_rising_value 532What: /sys/.../events/in_anglvel_z_raw_roc_falling_value 533What: /sys/.../events/in_magn_x_raw_roc_rising_value 534What: /sys/.../events/in_magn_x_raw_roc_falling_value 535What: /sys/.../events/in_magn_y_raw_roc_rising_value 536What: /sys/.../events/in_magn_y_raw_roc_falling_value 537What: /sys/.../events/in_magn_z_raw_roc_rising_value 538What: /sys/.../events/in_magn_z_raw_roc_falling_value 539What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value 540What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value 541What: /sys/.../events/in_voltageY_raw_roc_rising_value 542What: /sys/.../events/in_voltageY_raw_roc_falling_value 543What: /sys/.../events/in_tempY_raw_roc_rising_value 544What: /sys/.../events/in_tempY_raw_roc_falling_value 545KernelVersion: 2.6.37 546Contact: linux-iio@vger.kernel.org 547Description: 548 Specifies the value of rate of change threshold that the 549 device is comparing against for the events enabled by 550 <type>[Y][_name]_roc[_rising|falling]_en. 551 If separate attributes exist for the two directions, 552 but direction is not specified for this attribute, 553 then a single threshold value applies to both directions. 554 The raw or input element of the name indicates whether the 555 value is in raw device units or in processed units (as _raw 556 and _input do on sysfs direct channel read attributes). 557 558What: /sys/.../events/in_accel_x_thresh_rising_period 559What: /sys/.../events/in_accel_x_thresh_falling_period 560hat: /sys/.../events/in_accel_x_roc_rising_period 561What: /sys/.../events/in_accel_x_roc_falling_period 562What: /sys/.../events/in_accel_y_thresh_rising_period 563What: /sys/.../events/in_accel_y_thresh_falling_period 564What: /sys/.../events/in_accel_y_roc_rising_period 565What: /sys/.../events/in_accel_y_roc_falling_period 566What: /sys/.../events/in_accel_z_thresh_rising_period 567What: /sys/.../events/in_accel_z_thresh_falling_period 568What: /sys/.../events/in_accel_z_roc_rising_period 569What: /sys/.../events/in_accel_z_roc_falling_period 570What: /sys/.../events/in_anglvel_x_thresh_rising_period 571What: /sys/.../events/in_anglvel_x_thresh_falling_period 572What: /sys/.../events/in_anglvel_x_roc_rising_period 573What: /sys/.../events/in_anglvel_x_roc_falling_period 574What: /sys/.../events/in_anglvel_y_thresh_rising_period 575What: /sys/.../events/in_anglvel_y_thresh_falling_period 576What: /sys/.../events/in_anglvel_y_roc_rising_period 577What: /sys/.../events/in_anglvel_y_roc_falling_period 578What: /sys/.../events/in_anglvel_z_thresh_rising_period 579What: /sys/.../events/in_anglvel_z_thresh_falling_period 580What: /sys/.../events/in_anglvel_z_roc_rising_period 581What: /sys/.../events/in_anglvel_z_roc_falling_period 582What: /sys/.../events/in_magn_x_thresh_rising_period 583What: /sys/.../events/in_magn_x_thresh_falling_period 584What: /sys/.../events/in_magn_x_roc_rising_period 585What: /sys/.../events/in_magn_x_roc_falling_period 586What: /sys/.../events/in_magn_y_thresh_rising_period 587What: /sys/.../events/in_magn_y_thresh_falling_period 588What: /sys/.../events/in_magn_y_roc_rising_period 589What: /sys/.../events/in_magn_y_roc_falling_period 590What: /sys/.../events/in_magn_z_thresh_rising_period 591What: /sys/.../events/in_magn_z_thresh_falling_period 592What: /sys/.../events/in_magn_z_roc_rising_period 593What: /sys/.../events/in_magn_z_roc_falling_period 594What: /sys/.../events/in_voltageY_supply_thresh_rising_period 595What: /sys/.../events/in_voltageY_supply_thresh_falling_period 596What: /sys/.../events/in_voltageY_supply_roc_rising_period 597What: /sys/.../events/in_voltageY_supply_roc_falling_period 598What: /sys/.../events/in_voltageY_thresh_rising_period 599What: /sys/.../events/in_voltageY_thresh_falling_period 600What: /sys/.../events/in_voltageY_roc_rising_period 601What: /sys/.../events/in_voltageY_roc_falling_period 602What: /sys/.../events/in_tempY_thresh_rising_period 603What: /sys/.../events/in_tempY_thresh_falling_period 604What: /sys/.../events/in_tempY_roc_rising_period 605What: /sys/.../events/in_tempY_roc_falling_period 606What: /sys/.../events/in_accel_x&y&z_mag_falling_period 607What: /sys/.../events/in_intensity0_thresh_period 608What: /sys/.../events/in_proximity0_thresh_period 609KernelVersion: 2.6.37 610Contact: linux-iio@vger.kernel.org 611Description: 612 Period of time (in seconds) for which the condition must be 613 met before an event is generated. If direction is not 614 specified then this period applies to both directions. 615 616What: /sys/.../iio:deviceX/events/in_accel_mag_en 617What: /sys/.../iio:deviceX/events/in_accel_mag_rising_en 618What: /sys/.../iio:deviceX/events/in_accel_mag_falling_en 619What: /sys/.../iio:deviceX/events/in_accel_x_mag_en 620What: /sys/.../iio:deviceX/events/in_accel_x_mag_rising_en 621What: /sys/.../iio:deviceX/events/in_accel_x_mag_falling_en 622What: /sys/.../iio:deviceX/events/in_accel_y_mag_en 623What: /sys/.../iio:deviceX/events/in_accel_y_mag_rising_en 624What: /sys/.../iio:deviceX/events/in_accel_y_mag_falling_en 625What: /sys/.../iio:deviceX/events/in_accel_z_mag_en 626What: /sys/.../iio:deviceX/events/in_accel_z_mag_rising_en 627What: /sys/.../iio:deviceX/events/in_accel_z_mag_falling_en 628What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en 629What: /sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en 630KernelVersion: 2.6.37 631Contact: linux-iio@vger.kernel.org 632Description: 633 Similar to in_accel_x_thresh[_rising|_falling]_en, but here the 634 magnitude of the channel is compared to the threshold, not its 635 signed value. 636 637What: /sys/.../events/in_accel_raw_mag_value 638What: /sys/.../events/in_accel_x_raw_mag_rising_value 639What: /sys/.../events/in_accel_y_raw_mag_rising_value 640What: /sys/.../events/in_accel_z_raw_mag_rising_value 641KernelVersion: 2.6.37 642Contact: linux-iio@vger.kernel.org 643Description: 644 The value to which the magnitude of the channel is compared. If 645 number or direction is not specified, applies to all channels of 646 this type. 647 648What: /sys/bus/iio/devices/iio:deviceX/trigger/current_trigger 649KernelVersion: 2.6.35 650Contact: linux-iio@vger.kernel.org 651Description: 652 The name of the trigger source being used, as per string given 653 in /sys/class/iio/triggerY/name. 654 655What: /sys/bus/iio/devices/iio:deviceX/buffer/length 656KernelVersion: 2.6.35 657Contact: linux-iio@vger.kernel.org 658Description: 659 Number of scans contained by the buffer. 660 661What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum 662KernelVersion: 2.6.37 663Contact: linux-iio@vger.kernel.org 664Description: 665 Bytes per scan. Due to alignment fun, the scan may be larger 666 than implied directly by the scan_element parameters. 667 668What: /sys/bus/iio/devices/iio:deviceX/buffer/enable 669KernelVersion: 2.6.35 670Contact: linux-iio@vger.kernel.org 671Description: 672 Actually start the buffer capture up. Will start trigger 673 if first device and appropriate. 674 675What: /sys/bus/iio/devices/iio:deviceX/buffer/scan_elements 676KernelVersion: 2.6.37 677Contact: linux-iio@vger.kernel.org 678Description: 679 Directory containing interfaces for elements that will be 680 captured for a single triggered sample set in the buffer. 681 682What: /sys/.../buffer/scan_elements/in_accel_x_en 683What: /sys/.../buffer/scan_elements/in_accel_y_en 684What: /sys/.../buffer/scan_elements/in_accel_z_en 685What: /sys/.../buffer/scan_elements/in_anglvel_x_en 686What: /sys/.../buffer/scan_elements/in_anglvel_y_en 687What: /sys/.../buffer/scan_elements/in_anglvel_z_en 688What: /sys/.../buffer/scan_elements/in_magn_x_en 689What: /sys/.../buffer/scan_elements/in_magn_y_en 690What: /sys/.../buffer/scan_elements/in_magn_z_en 691What: /sys/.../buffer/scan_elements/in_timestamp_en 692What: /sys/.../buffer/scan_elements/in_voltageY_supply_en 693What: /sys/.../buffer/scan_elements/in_voltageY_en 694What: /sys/.../buffer/scan_elements/in_voltageY-voltageZ_en 695What: /sys/.../buffer/scan_elements/in_incli_x_en 696What: /sys/.../buffer/scan_elements/in_incli_y_en 697KernelVersion: 2.6.37 698Contact: linux-iio@vger.kernel.org 699Description: 700 Scan element control for triggered data capture. 701 702What: /sys/.../buffer/scan_elements/in_accel_type 703What: /sys/.../buffer/scan_elements/in_anglvel_type 704What: /sys/.../buffer/scan_elements/in_magn_type 705What: /sys/.../buffer/scan_elements/in_incli_type 706What: /sys/.../buffer/scan_elements/in_voltageY_type 707What: /sys/.../buffer/scan_elements/in_voltage_type 708What: /sys/.../buffer/scan_elements/in_voltageY_supply_type 709What: /sys/.../buffer/scan_elements/in_timestamp_type 710KernelVersion: 2.6.37 711Contact: linux-iio@vger.kernel.org 712Description: 713 Description of the scan element data storage within the buffer 714 and hence the form in which it is read from user-space. 715 Form is [be|le]:[s|u]bits/storagebits[>>shift]. 716 be or le specifies big or little endian. s or u specifies if 717 signed (2's complement) or unsigned. bits is the number of bits 718 of data and storagebits is the space (after padding) that it 719 occupies in the buffer. shift if specified, is the shift that 720 needs to be applied prior to masking out unused bits. Some 721 devices put their data in the middle of the transferred elements 722 with additional information on both sides. Note that some 723 devices will have additional information in the unused bits 724 so to get a clean value, the bits value must be used to mask 725 the buffer output value appropriately. The storagebits value 726 also specifies the data alignment. So s48/64>>2 will be a 727 signed 48 bit integer stored in a 64 bit location aligned to 728 a 64 bit boundary. To obtain the clean value, shift right 2 729 and apply a mask to zero the top 16 bits of the result. 730 For other storage combinations this attribute will be extended 731 appropriately. 732 733What: /sys/.../buffer/scan_elements/in_accel_type_available 734KernelVersion: 2.6.37 735Contact: linux-iio@vger.kernel.org 736Description: 737 If the type parameter can take one of a small set of values, 738 this attribute lists them. 739 740What: /sys/.../buffer/scan_elements/in_voltageY_index 741What: /sys/.../buffer/scan_elements/in_voltageY_supply_index 742What: /sys/.../buffer/scan_elements/in_accel_x_index 743What: /sys/.../buffer/scan_elements/in_accel_y_index 744What: /sys/.../buffer/scan_elements/in_accel_z_index 745What: /sys/.../buffer/scan_elements/in_anglvel_x_index 746What: /sys/.../buffer/scan_elements/in_anglvel_y_index 747What: /sys/.../buffer/scan_elements/in_anglvel_z_index 748What: /sys/.../buffer/scan_elements/in_magn_x_index 749What: /sys/.../buffer/scan_elements/in_magn_y_index 750What: /sys/.../buffer/scan_elements/in_magn_z_index 751What: /sys/.../buffer/scan_elements/in_incli_x_index 752What: /sys/.../buffer/scan_elements/in_incli_y_index 753What: /sys/.../buffer/scan_elements/in_timestamp_index 754KernelVersion: 2.6.37 755Contact: linux-iio@vger.kernel.org 756Description: 757 A single positive integer specifying the position of this 758 scan element in the buffer. Note these are not dependent on 759 what is enabled and may not be contiguous. Thus for user-space 760 to establish the full layout these must be used in conjunction 761 with all _en attributes to establish which channels are present, 762 and the relevant _type attributes to establish the data storage 763 format. 764 765What: /sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw 766KernelVersion: 2.6.38 767Contact: linux-iio@vger.kernel.org 768Description: 769 This attribute is used to read the amount of quadrature error 770 present in the device at a given time. 771