cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysfs-bus-iio (92591B)


      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
     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.
     22
     23What:		/sys/bus/iio/devices/iio:deviceX/buffer
     24KernelVersion:	2.6.35
     25Contact:	linux-iio@vger.kernel.org
     26Description:
     27		Directory of attributes relating to the buffer for the device.
     28
     29What:		/sys/bus/iio/devices/iio:deviceX/name
     30KernelVersion:	2.6.35
     31Contact:	linux-iio@vger.kernel.org
     32Description:
     33		Description of the physical chip / device for device X.
     34		Typically a part number.
     35
     36What:		/sys/bus/iio/devices/iio:deviceX/label
     37KernelVersion:	5.8
     38Contact:	linux-iio@vger.kernel.org
     39Description:
     40		Optional symbolic label for a device.
     41		This is useful for userspace to be able to better identify an
     42		individual device.
     43
     44		The contents of the label are free-form, but there are some
     45		standardized uses:
     46
     47		For proximity sensors which give the proximity (of a person) to
     48		a certain wlan or wwan antenna the following standardized labels
     49		are used:
     50
     51		* "proximity-wifi"
     52		* "proximity-lte"
     53		* "proximity-wifi-lte"
     54		* "proximity-wifi-left"
     55		* "proximity-wifi-right"
     56
     57		These are used to indicate to userspace that these proximity
     58		sensors may be used to tune transmit power to ensure that
     59		Specific Absorption Rate (SAR) limits are honored.
     60		The "-left" and "-right" labels are for devices with multiple
     61		antennas.
     62
     63		In some laptops/tablets the standardized proximity sensor labels
     64		instead	indicate proximity to a specific part of the device:
     65
     66		* "proximity-palmrest" indicates proximity to the keyboard's palmrest
     67		* "proximity-palmrest-left" indicates proximity to the left part of the palmrest
     68		* "proximity-palmrest-right" indicates proximity to the right part of the palmrest
     69		* "proximity-lap" indicates the device is being used on someone's lap
     70
     71		Note "proximity-lap" is special in that its value may be
     72		calculated by firmware from other sensor readings, rather then
     73		being a raw sensor reading.
     74
     75		For accelerometers used in 2-in-1s with 360° (yoga-style) hinges,
     76		which have an accelerometer in both their base and their display,
     77		the following standardized labels are used:
     78
     79		* "accel-base"
     80		* "accel-display"
     81
     82What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
     83KernelVersion:	4.5
     84Contact:	linux-iio@vger.kernel.org
     85Description:
     86		String identifying current posix clock used to timestamp
     87		buffered samples and events for device X.
     88
     89What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency
     90What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency
     91What:		/sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
     92What:		/sys/bus/iio/devices/triggerX/sampling_frequency
     93KernelVersion:	2.6.35
     94Contact:	linux-iio@vger.kernel.org
     95Description:
     96		Some devices have internal clocks.  This parameter sets the
     97		resulting sampling frequency.  In many devices this
     98		parameter has an effect on input filters etc. rather than
     99		simply controlling when the input is sampled.  As this
    100		affects data ready triggers, hardware buffers and the sysfs
    101		direct access interfaces, it may be found in any of the
    102		relevant directories.  If it affects all of the above
    103		then it is to be found in the base device directory.
    104
    105What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
    106What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
    107What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
    108What:		/sys/.../iio:deviceX/buffer/sampling_frequency_available
    109What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
    110KernelVersion:	2.6.35
    111Contact:	linux-iio@vger.kernel.org
    112Description:
    113		When the internal sampling clock can only take a specific set of
    114		frequencies, we can specify the available values with:
    115
    116		- a small discrete set of values like "0 2 4 6 8"
    117		- a range with minimum, step and maximum frequencies like
    118		  "[min step max]"
    119
    120What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio
    121KernelVersion:	2.6.38
    122Contact:	linux-iio@vger.kernel.org
    123Description:
    124		Hardware dependent ADC oversampling. Controls the sampling ratio
    125		of the digital filter if available.
    126
    127What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
    128KernelVersion:	2.6.38
    129Contact:	linux-iio@vger.kernel.org
    130Description:
    131		Hardware dependent values supported by the oversampling filter.
    132
    133What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
    134What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
    135What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
    136What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
    137KernelVersion:	2.6.35
    138Contact:	linux-iio@vger.kernel.org
    139Description:
    140		Raw (unscaled no bias removal etc.) voltage measurement from
    141		channel Y. In special cases where the channel does not
    142		correspond to externally available input one of the named
    143		versions may be used. The number must always be specified and
    144		unique to allow association with event codes. Units after
    145		application of scale and offset are millivolts.
    146
    147		Channels with 'i' and 'q' modifiers always exist in pairs and both
    148		channels refer to the same signal. The 'i' channel contains the in-phase
    149		component of the signal while the 'q' channel contains the quadrature
    150		component.
    151
    152What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
    153KernelVersion:	2.6.35
    154Contact:	linux-iio@vger.kernel.org
    155Description:
    156		Raw (unscaled) differential voltage measurement equivalent to
    157		channel Y - channel Z where these channel numbers apply to the
    158		physically equivalent inputs when non differential readings are
    159		separately available. In differential only parts, then all that
    160		is required is a consistent labeling.  Units after application
    161		of scale and offset are millivolts.
    162
    163What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_raw
    164What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
    165KernelVersion:	3.17
    166Contact:	linux-iio@vger.kernel.org
    167Description:
    168		Raw (unscaled no bias removal etc.) current measurement from
    169		channel Y. In special cases where the channel does not
    170		correspond to externally available input one of the named
    171		versions may be used. The number must always be specified and
    172		unique to allow association with event codes. Units after
    173		application of scale and offset are milliamps.
    174
    175What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_raw
    176KernelVersion:	4.5
    177Contact:	linux-iio@vger.kernel.org
    178Description:
    179		Raw (unscaled no bias removal etc.) power measurement from
    180		channel Y. The number must always be specified and
    181		unique to allow association with event codes. Units after
    182		application of scale and offset are milliwatts.
    183
    184What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
    185KernelVersion:	3.2
    186Contact:	linux-iio@vger.kernel.org
    187Description:
    188		Raw capacitance measurement from channel Y. Units after
    189		application of scale and offset are nanofarads.
    190
    191What:		/sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
    192KernelVersion:	3.2
    193Contact:	linux-iio@vger.kernel.org
    194Description:
    195		Raw differential capacitance measurement equivalent to
    196		channel Y - channel Z where these channel numbers apply to the
    197		physically equivalent inputs when non differential readings are
    198		separately available. In differential only parts, then all that
    199		is required is a consistent labeling.  Units after application
    200		of scale and offset are nanofarads.
    201
    202What:		/sys/bus/iio/devices/iio:deviceX/in_temp_raw
    203What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_raw
    204What:		/sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
    205What:		/sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
    206What:		/sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
    207What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
    208KernelVersion:	2.6.35
    209Contact:	linux-iio@vger.kernel.org
    210Description:
    211		Raw (unscaled no bias removal etc.) temperature measurement.
    212		If an axis is specified it generally means that the temperature
    213		sensor is associated with one part of a compound device (e.g.
    214		a gyroscope axis). The ambient and object modifiers distinguish
    215		between ambient (reference) and distant temperature for contact-
    216		less measurements. Units after application of scale and offset
    217		are milli degrees Celsius.
    218
    219What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_input
    220KernelVersion:	2.6.38
    221Contact:	linux-iio@vger.kernel.org
    222Description:
    223		Scaled temperature measurement in milli degrees Celsius.
    224
    225What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
    226What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
    227What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
    228KernelVersion:	2.6.35
    229Contact:	linux-iio@vger.kernel.org
    230Description:
    231		Acceleration in direction x, y or z (may be arbitrarily assigned
    232		but should match other such assignments on device).
    233		Has all of the equivalent parameters as per voltageY. Units
    234		after application of scale and offset are m/s^2.
    235
    236What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
    237What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
    238What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
    239KernelVersion:	4.11
    240Contact:	linux-iio@vger.kernel.org
    241Description:
    242		Gravity in direction x, y or z (may be arbitrarily assigned
    243		but should match other such assignments on device).
    244		Units after application of scale and offset are m/s^2.
    245
    246What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
    247What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
    248KernelVersion:	4.17
    249Contact:	linux-iio@vger.kernel.org
    250Description:
    251		Angle of rotation. Units after application of scale and offset
    252		are radians.
    253
    254What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
    255What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
    256KernelVersion:	4.19
    257Contact:	linux-iio@vger.kernel.org
    258Description:
    259		Relative position in direction x or y on a pad (may be
    260		arbitrarily assigned but should match other such assignments on
    261		device).
    262		Units after application of scale and offset are milli percents
    263		from the pad's size in both directions. Should be calibrated by
    264		the consumer.
    265
    266What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
    267What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
    268What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
    269KernelVersion:	2.6.35
    270Contact:	linux-iio@vger.kernel.org
    271Description:
    272		Angular velocity about axis x, y or z (may be arbitrarily
    273		assigned). Has all the equivalent parameters as	per voltageY.
    274		Units after application of scale and offset are	radians per
    275		second.
    276
    277What:		/sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
    278What:		/sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
    279What:		/sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
    280KernelVersion:	2.6.35
    281Contact:	linux-iio@vger.kernel.org
    282Description:
    283		Inclination raw reading about axis x, y or z (may be
    284		arbitrarily assigned). Data converted by application of offset
    285		and scale to degrees.
    286
    287What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
    288What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
    289What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
    290KernelVersion:	2.6.35
    291Contact:	linux-iio@vger.kernel.org
    292Description:
    293		Magnetic field along axis x, y or z (may be arbitrarily
    294		assigned).  Data converted by application of offset
    295		then scale to Gauss.
    296
    297What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
    298What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
    299What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
    300KernelVersion:	2.6.36
    301Contact:	linux-iio@vger.kernel.org
    302Description:
    303		Highest value since some reset condition.  These
    304		attributes allow access to this and are otherwise
    305		the direct equivalent of the <type>Y[_name]_raw attributes.
    306
    307What:		/sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
    308KernelVersion:	2.6.36
    309Contact:	linux-iio@vger.kernel.org
    310Description:
    311		A computed peak value based on the sum squared magnitude of
    312		the underlying value in the specified directions.
    313
    314What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
    315What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_raw
    316KernelVersion:	3.8
    317Contact:	linux-iio@vger.kernel.org
    318Description:
    319		Raw pressure measurement from channel Y. Units after
    320		application of scale and offset are kilopascal.
    321
    322What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_input
    323What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_input
    324KernelVersion:	3.8
    325Contact:	linux-iio@vger.kernel.org
    326Description:
    327		Scaled pressure measurement from channel Y, in kilopascal.
    328
    329What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
    330KernelVersion:	3.14
    331Contact:	linux-iio@vger.kernel.org
    332Description:
    333		Raw humidity measurement of air. Units after application of
    334		scale and offset are milli percent.
    335
    336What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
    337KernelVersion:	3.14
    338Contact:	linux-iio@vger.kernel.org
    339Description:
    340		Scaled humidity measurement in milli percent.
    341
    342What:		/sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
    343KernelVersion:	3.5
    344Contact:	linux-iio@vger.kernel.org
    345Description:
    346		Averaged raw measurement from channel X. The number of values
    347		used for averaging is device specific. The converting rules for
    348		normal raw values also applies to the averaged raw values.
    349
    350What:		/sys/bus/iio/devices/iio:deviceX/in_accel_offset
    351What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
    352What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
    353What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
    354What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
    355What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_offset
    356What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
    357What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
    358What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
    359What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
    360What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_offset
    361What:		/sys/bus/iio/devices/iio:deviceX/in_current_offset
    362What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
    363What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
    364What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_offset
    365What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_offset
    366What:		/sys/bus/iio/devices/iio:deviceX/in_tempY_offset
    367What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
    368What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
    369What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
    370What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
    371What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
    372What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
    373What:		/sys/bus/iio/devices/iio:deviceX/in_angl_offset
    374What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceX_offset
    375KernelVersion:	2.6.35
    376Contact:	linux-iio@vger.kernel.org
    377Description:
    378		If known for a device, offset to be added to <type>[Y]_raw prior
    379		to scaling by <type>[Y]_scale in order to obtain value in the
    380		<type> units as specified in <type>[Y]_raw documentation.
    381		Not present if the offset is always 0 or unknown. If Y or
    382		axis <x|y|z> is not present, then the offset applies to all
    383		in channels of <type>.
    384		May be writable if a variable offset can be applied on the
    385		device. Note that this is different to calibbias which
    386		is for devices (or drivers) that apply offsets to compensate
    387		for variation between different instances of the part, typically
    388		adjusted by using some hardware supported calibration procedure.
    389		Calibbias is applied internally, offset is applied in userspace
    390		to the _raw output.
    391
    392What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
    393What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
    394What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
    395What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
    396What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_scale
    397What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
    398What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
    399What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
    400What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
    401What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
    402What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_scale
    403What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
    404What:		/sys/bus/iio/devices/iio:deviceX/in_current_scale
    405What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
    406What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
    407What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_scale
    408What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_scale
    409What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale
    410What:		/sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
    411What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
    412What:		/sys/bus/iio/devices/iio:deviceX/in_energy_scale
    413What:		/sys/bus/iio/devices/iio:deviceX/in_distance_scale
    414What:		/sys/bus/iio/devices/iio:deviceX/in_magn_scale
    415What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
    416What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
    417What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
    418What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
    419What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
    420What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
    421What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
    422What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
    423What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
    424What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
    425What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
    426What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
    427What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
    428What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
    429What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale
    430What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale
    431What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_scale
    432What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_scale
    433KernelVersion:	2.6.35
    434Contact:	linux-iio@vger.kernel.org
    435Description:
    436		If known for a device, scale to be applied to <type>Y[_name]_raw
    437		post addition of <type>[Y][_name]_offset in order to obtain the
    438		measured value in <type> units as specified in
    439		<type>[Y][_name]_raw documentation.  If shared across all in
    440		channels then Y and <x|y|z> are not present and the value is
    441		called <type>[Y][_name]_scale. The peak modifier means this
    442		value is applied to <type>Y[_name]_peak_raw values.
    443
    444What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
    445What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
    446What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
    447What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
    448What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
    449What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
    450What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
    451What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
    452What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
    453What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
    454KernelVersion:	2.6.35
    455Contact:	linux-iio@vger.kernel.org
    456Description:
    457		Hardware applied calibration offset (assumed to fix production
    458		inaccuracies).
    459		icm42600: For this device values are real physical offsets
    460		expressed in SI units (m/s^2 for accelerometers and rad/s
    461		for gyroscope)/
    462
    463What:		/sys/bus/iio/devices/iio:deviceX/in_accel_calibbias_available
    464What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_calibbias_available
    465KernelVersion:  5.8
    466Contact:        linux-iio@vger.kernel.org
    467Description:
    468		Available values of calibbias. Maybe expressed as either of:
    469
    470		- a small discrete set of values like "0 2 4 6 8"
    471		- a range specified as "[min step max]"
    472
    473What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
    474What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
    475What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
    476What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
    477What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
    478What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
    479What:		/sys/bus/iio/devices/iio:deviceX/in_altvoltage_calibscale
    480What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
    481What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
    482What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
    483What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
    484What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
    485What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
    486What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
    487What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
    488What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
    489What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
    490What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
    491What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
    492KernelVersion:	2.6.35
    493Contact:	linux-iio@vger.kernel.org
    494Description:
    495		Hardware applied calibration scale factor (assumed to fix
    496		production inaccuracies).  If shared across all channels,
    497		<type>_calibscale is used.
    498
    499What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
    500What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
    501What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
    502What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
    503KernelVersion:	4.0
    504Contact:	linux-iio@vger.kernel.org
    505Description:
    506		Gender of the user (e.g.: male, female) used by some pedometers
    507		to compute the stride length, distance, speed and activity
    508		type.
    509
    510What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
    511What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
    512What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
    513What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
    514KernelVersion:	4.0
    515Contact:	linux-iio@vger.kernel.org
    516Description:
    517		Lists all available gender values (e.g.: male, female).
    518
    519What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
    520What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
    521What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
    522What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
    523KernelVersion:	3.19
    524Contact:	linux-iio@vger.kernel.org
    525Description:
    526		Height of the user (in meters) used by some pedometers
    527		to compute the stride length, distance, speed and activity
    528		type.
    529
    530What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
    531KernelVersion:	4.0
    532Contact:	linux-iio@vger.kernel.org
    533Description:
    534		Weight of the user (in kg). It is needed by some pedometers
    535		to compute the calories burnt by the user.
    536
    537What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
    538What:		/sys/.../iio:deviceX/in_anglvel_scale_available
    539What:		/sys/.../iio:deviceX/in_magn_scale_available
    540What:		/sys/.../iio:deviceX/in_illuminance_scale_available
    541What:		/sys/.../iio:deviceX/in_intensity_scale_available
    542What:		/sys/.../iio:deviceX/in_proximity_scale_available
    543What:		/sys/.../iio:deviceX/in_voltageX_scale_available
    544What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
    545What:		/sys/.../iio:deviceX/out_voltageX_scale_available
    546What:		/sys/.../iio:deviceX/out_altvoltageX_scale_available
    547What:		/sys/.../iio:deviceX/in_capacitance_scale_available
    548What:		/sys/.../iio:deviceX/in_pressure_scale_available
    549What:		/sys/.../iio:deviceX/in_pressureY_scale_available
    550KernelVersion:	2.6.35
    551Contact:	linux-iio@vger.kernel.org
    552Description:
    553		If a discrete set of scale values is available, they
    554		are listed in this attribute.
    555
    556What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
    557What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain
    558What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
    559What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
    560What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
    561What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
    562KernelVersion:	2.6.35
    563Contact:	linux-iio@vger.kernel.org
    564Description:
    565		Hardware applied gain factor. If shared across all channels,
    566		<type>_hardwaregain is used.
    567
    568What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hardwaregain_available
    569KernelVersion:	5.10
    570Contact:	linux-iio@vger.kernel.org
    571Description:
    572		Lists all available hardware applied gain factors. Shared across all
    573		channels.
    574
    575What:		/sys/.../in_accel_filter_low_pass_3db_frequency
    576What:		/sys/.../in_magn_filter_low_pass_3db_frequency
    577What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
    578KernelVersion:	3.2
    579Contact:	linux-iio@vger.kernel.org
    580Description:
    581		If a known or controllable low pass filter is applied
    582		to the underlying data channel, then this parameter
    583		gives the 3dB frequency of the filter in Hz.
    584
    585What:		/sys/.../in_accel_filter_high_pass_3db_frequency
    586What:		/sys/.../in_anglvel_filter_high_pass_3db_frequency
    587What:		/sys/.../in_magn_filter_high_pass_3db_frequency
    588KernelVersion:	4.2
    589Contact:	linux-iio@vger.kernel.org
    590Description:
    591		If a known or controllable high pass filter is applied
    592		to the underlying data channel, then this parameter
    593		gives the 3dB frequency of the filter in Hz.
    594
    595What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
    596What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
    597KernelVersion:	2.6.37
    598Contact:	linux-iio@vger.kernel.org
    599Description:
    600		Raw (unscaled, no bias etc.) output voltage for
    601		channel Y.  The number must always be specified and
    602		unique if the output corresponds to a single channel.
    603		While DAC like devices typically use out_voltage,
    604		a continuous frequency generating device, such as
    605		a DDS or PLL should use out_altvoltage.
    606
    607What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
    608What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
    609KernelVersion:	2.6.37
    610Contact:	linux-iio@vger.kernel.org
    611Description:
    612		Raw (unscaled, no bias etc.) output voltage for an aggregate of
    613		channel Y, channel Z, etc.  This interface is available in cases
    614		where a single output sets the value for multiple channels
    615		simultaneously.
    616
    617What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
    618What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
    619What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
    620What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
    621KernelVersion:	2.6.38
    622Contact:	linux-iio@vger.kernel.org
    623Description:
    624		Specifies the output powerdown mode.
    625		DAC output stage is disconnected from the amplifier and
    626		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
    627		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
    628		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
    629		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
    630		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
    631		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
    632		125kohm_to_gnd: connected to ground via an 125kOhm resistor,
    633		500kohm_to_gnd: connected to ground via a 500kOhm resistor,
    634		640kohm_to_gnd: connected to ground via a 640kOhm resistor,
    635		three_state: left floating.
    636		For a list of available output power down options read
    637		outX_powerdown_mode_available. If Y is not present the
    638		mode is shared across all outputs.
    639
    640What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
    641What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
    642What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
    643What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
    644KernelVersion:	2.6.38
    645Contact:	linux-iio@vger.kernel.org
    646Description:
    647		Lists all available output power down modes.
    648		If Y is not present the mode is shared across all outputs.
    649
    650What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
    651What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
    652What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
    653What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
    654KernelVersion:	2.6.38
    655Contact:	linux-iio@vger.kernel.org
    656Description:
    657		Writing 1 causes output Y to enter the power down mode specified
    658		by the corresponding outY_powerdown_mode. DAC output stage is
    659		disconnected from the amplifier. Clearing returns to normal
    660		operation. Y may be suppressed if all outputs are controlled
    661		together.
    662
    663What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
    664KernelVersion:	3.4.0
    665Contact:	linux-iio@vger.kernel.org
    666Description:
    667		Output frequency for channel Y in Hz. The number must always be
    668		specified and unique if the output corresponds to a single
    669		channel.
    670		Some drivers have additional constraints:
    671		ADF4371 has an integrated VCO with fundamendal output
    672		frequency ranging from 4000000000 Hz 8000000000 Hz.
    673
    674		out_altvoltage0_frequency:
    675			A divide by 1, 2, 4, 8, 16, 32 or circuit generates
    676			frequencies from 62500000 Hz to 8000000000 Hz.
    677		out_altvoltage1_frequency:
    678			This channel duplicates the channel 0 frequency
    679		out_altvoltage2_frequency:
    680			A frequency doubler generates frequencies from
    681			8000000000 Hz to 16000000000 Hz.
    682		out_altvoltage3_frequency:
    683			A frequency quadrupler generates frequencies from
    684			16000000000 Hz to 32000000000 Hz.
    685
    686		Note: writes to one of the channels will affect the frequency of
    687		all the other channels, since it involves changing the VCO
    688		fundamental output frequency.
    689
    690What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
    691KernelVersion:	3.4.0
    692Contact:	linux-iio@vger.kernel.org
    693Description:
    694		Phase in radians of one frequency/clock output Y
    695		(out_altvoltageY) relative to another frequency/clock output
    696		(out_altvoltageZ) of the device X. The number must always be
    697		specified and unique if the output corresponds to a single
    698		channel.
    699
    700What:		/sys/bus/iio/devices/iio:deviceX/out_currentY_raw
    701Date:		May 2012
    702KernelVersion:	3.5
    703Contact:	Johan Hovold <jhovold@gmail.com>
    704Description:
    705		Set/get output current for channel Y. Units after application
    706		of scale and offset are milliamps.
    707		For some devices current channels are used to specify
    708		current supplied to elements used in taking a measurement
    709		of a different type. E.g. LED currents.
    710
    711What:		/sys/bus/iio/devices/iio:deviceX/events
    712KernelVersion:	2.6.35
    713Contact:	linux-iio@vger.kernel.org
    714Description:
    715		Configuration of which hardware generated events are passed up
    716		to user-space.
    717
    718What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
    719What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
    720What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
    721What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
    722What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
    723What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
    724What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
    725What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
    726What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
    727What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
    728What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
    729What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
    730What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
    731What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
    732What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
    733What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
    734What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
    735What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
    736What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
    737What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
    738What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
    739What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
    740What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
    741What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
    742What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
    743What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
    744What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
    745What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
    746What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
    747What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
    748What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
    749What:		/sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
    750What:		/sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
    751What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_rising_en
    752What:		/sys/.../iio:deviceX/events/in_capacitanceY_thresh_falling_en
    753KernelVersion:	2.6.37
    754Contact:	linux-iio@vger.kernel.org
    755Description:
    756		Event generated when channel passes a threshold in the specified
    757		(_rising|_falling) direction. If the direction is not specified,
    758		then either the device will report an event which ever direction
    759		a single threshold value is passed in (e.g.
    760		<type>[Y][_name]_<raw|input>_thresh_value) or
    761		<type>[Y][_name]_<raw|input>_thresh_rising_value and
    762		<type>[Y][_name]_<raw|input>_thresh_falling_value may take
    763		different values, but the device can only enable both thresholds
    764		or neither.
    765
    766		Note the driver will assume the last p events requested are
    767		to be enabled where p is how many it supports (which may vary
    768		depending on the exact set requested. So if you want to be
    769		sure you have set what you think you have, check the contents of
    770		these attributes after everything is configured. Drivers may
    771		have to buffer any parameters so that they are consistent when
    772		a given event type is enabled at a future point (and not those for
    773		whatever event was previously enabled).
    774
    775What:		/sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
    776What:		/sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
    777What:		/sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
    778What:		/sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
    779What:		/sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
    780What:		/sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
    781What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
    782What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
    783What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
    784What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
    785What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
    786What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
    787What:		/sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
    788What:		/sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
    789What:		/sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
    790What:		/sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
    791What:		/sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
    792What:		/sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
    793What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
    794What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
    795What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
    796What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
    797What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
    798What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
    799What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
    800What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
    801What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
    802What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
    803What:		/sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
    804What:		/sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
    805What:		/sys/.../iio:deviceX/events/in_tempY_roc_rising_en
    806What:		/sys/.../iio:deviceX/events/in_tempY_roc_falling_en
    807KernelVersion:	2.6.37
    808Contact:	linux-iio@vger.kernel.org
    809Description:
    810		Event generated when channel passes a threshold on the rate of
    811		change (1st differential) in the specified (_rising|_falling)
    812		direction. If the direction is not specified, then either the
    813		device will report an event which ever direction a single
    814		threshold value is passed in (e.g.
    815		<type>[Y][_name]_<raw|input>_roc_value) or
    816		<type>[Y][_name]_<raw|input>_roc_rising_value and
    817		<type>[Y][_name]_<raw|input>_roc_falling_value may take
    818		different values, but the device can only enable both rate of
    819		change thresholds or neither.
    820
    821		Note the driver will assume the last p events requested are
    822		to be enabled where p is however many it supports (which may
    823		vary depending on the exact set requested. So if you want to be
    824		sure you have set what you think you have, check the contents of
    825		these attributes after everything is configured. Drivers may
    826		have to buffer any parameters so that they are consistent when
    827		a given event type is enabled a future point (and not those for
    828		whatever event was previously enabled).
    829
    830What:		/sys/.../events/in_capacitanceY_adaptive_thresh_rising_en
    831What:		/sys/.../events/in_capacitanceY_adaptive_thresh_falling_en
    832KernelVersion:	5.13
    833Contact:	linux-iio@vger.kernel.org
    834Description:
    835		Adaptive thresholds are similar to normal fixed thresholds
    836		but the value is expressed as an offset from a value which
    837		provides a low frequency approximation of the channel itself.
    838		Thus these detect if a rapid change occurs in the specified
    839		direction which crosses tracking value + offset.
    840		Tracking value calculation is devices specific.
    841
    842What:		/sys/.../in_capacitanceY_adaptive_thresh_rising_timeout
    843What:		/sys/.../in_capacitanceY_adaptive_thresh_falling_timeout
    844KernelVersion:	5.11
    845Contact:	linux-iio@vger.kernel.org
    846Description:
    847		When adaptive thresholds are used, the tracking signal
    848		may adjust too slowly to step changes in the raw signal.
    849		Thus these specify the time in seconds for which the
    850		difference between the slow tracking signal and the raw
    851		signal is allowed to remain out-of-range before a reset
    852		event occurs in which the tracking signal is made equal
    853		to the raw signal, allowing slow tracking to resume and the
    854		adaptive threshold event detection to function as expected.
    855
    856What:		/sys/.../events/in_accel_thresh_rising_value
    857What:		/sys/.../events/in_accel_thresh_falling_value
    858What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
    859What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
    860What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
    861What:		/sys/.../events/in_accel_y_raw_thresh_falling_value
    862What:		/sys/.../events/in_accel_z_raw_thresh_rising_value
    863What:		/sys/.../events/in_accel_z_raw_thresh_falling_value
    864What:		/sys/.../events/in_anglvel_x_raw_thresh_rising_value
    865What:		/sys/.../events/in_anglvel_x_raw_thresh_falling_value
    866What:		/sys/.../events/in_anglvel_y_raw_thresh_rising_value
    867What:		/sys/.../events/in_anglvel_y_raw_thresh_falling_value
    868What:		/sys/.../events/in_anglvel_z_raw_thresh_rising_value
    869What:		/sys/.../events/in_anglvel_z_raw_thresh_falling_value
    870What:		/sys/.../events/in_magn_x_raw_thresh_rising_value
    871What:		/sys/.../events/in_magn_x_raw_thresh_falling_value
    872What:		/sys/.../events/in_magn_y_raw_thresh_rising_value
    873What:		/sys/.../events/in_magn_y_raw_thresh_falling_value
    874What:		/sys/.../events/in_magn_z_raw_thresh_rising_value
    875What:		/sys/.../events/in_magn_z_raw_thresh_falling_value
    876What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
    877What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
    878What:		/sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
    879What:		/sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
    880What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
    881What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
    882What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
    883What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
    884What:		/sys/.../events/in_voltageY_supply_raw_thresh_rising_value
    885What:		/sys/.../events/in_voltageY_supply_raw_thresh_falling_value
    886What:		/sys/.../events/in_voltageY_raw_thresh_rising_value
    887What:		/sys/.../events/in_voltageY_raw_thresh_falling_value
    888What:		/sys/.../events/in_tempY_raw_thresh_rising_value
    889What:		/sys/.../events/in_tempY_raw_thresh_falling_value
    890What:		/sys/.../events/in_illuminance0_thresh_falling_value
    891What:		/sys/.../events/in_illuminance0_thresh_rising_value
    892What:		/sys/.../events/in_proximity0_thresh_falling_value
    893What:		/sys/.../events/in_proximity0_thresh_rising_value
    894What:		/sys/.../events/in_illuminance_thresh_rising_value
    895What:		/sys/.../events/in_illuminance_thresh_falling_value
    896What:		/sys/.../events/in_capacitanceY_thresh_rising_value
    897What:		/sys/.../events/in_capacitanceY_thresh_falling_value
    898What:		/sys/.../events/in_capacitanceY_thresh_adaptive_rising_value
    899What:		/sys/.../events/in_capacitanceY_thresh_falling_rising_value
    900KernelVersion:	2.6.37
    901Contact:	linux-iio@vger.kernel.org
    902Description:
    903		Specifies the value of threshold that the device is comparing
    904		against for the events enabled by
    905		<type>Y[_name]_thresh[_rising|falling]_en.
    906
    907		If separate attributes exist for the two directions, but
    908		direction is not specified for this attribute, then a single
    909		threshold value applies to both directions.
    910
    911		The raw or input element of the name indicates whether the
    912		value is in raw device units or in processed units (as _raw
    913		and _input do on sysfs direct channel read attributes).
    914
    915What:		/sys/.../events/in_accel_scale
    916What:		/sys/.../events/in_accel_peak_scale
    917What:		/sys/.../events/in_anglvel_scale
    918What:		/sys/.../events/in_magn_scale
    919What:		/sys/.../events/in_rot_from_north_magnetic_scale
    920What:		/sys/.../events/in_rot_from_north_true_scale
    921What:		/sys/.../events/in_voltage_scale
    922What:		/sys/.../events/in_voltage_supply_scale
    923What:		/sys/.../events/in_temp_scale
    924What:		/sys/.../events/in_illuminance_scale
    925What:		/sys/.../events/in_proximity_scale
    926KernelVersion:	3.21
    927Contact:	linux-iio@vger.kernel.org
    928Description:
    929                Specifies the conversion factor from the standard units
    930                to device specific units used to set the event trigger
    931                threshold.
    932
    933What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
    934What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
    935What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
    936What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
    937What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
    938What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
    939What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
    940What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
    941What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
    942What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
    943What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
    944What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
    945What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
    946What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
    947What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
    948What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
    949What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
    950What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
    951What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
    952What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
    953What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
    954What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
    955What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
    956What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
    957What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
    958What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
    959What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
    960What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
    961What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
    962What:		/sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
    963What:		/sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
    964What:		/sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
    965What:		/sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
    966What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
    967What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
    968What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
    969What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
    970What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
    971What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
    972What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
    973What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
    974What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
    975What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
    976What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
    977What:		/sys/.../events/in_tempY_thresh_either_hysteresis
    978What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
    979What:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
    980What:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
    981What:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
    982What:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
    983What:		/sys/.../events/in_proximity0_thresh_either_hysteresis
    984KernelVersion:	3.13
    985Contact:	linux-iio@vger.kernel.org
    986Description:
    987		Specifies the hysteresis of threshold that the device is comparing
    988		against for the events enabled by
    989		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
    990		If separate attributes exist for the two directions, but
    991		direction is not specified for this attribute, then a single
    992		hysteresis value applies to both directions.
    993
    994		For falling events the hysteresis is added to the _value attribute for
    995		this event to get the upper threshold for when the event goes back to
    996		normal, for rising events the hysteresis is subtracted from the _value
    997		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
    998		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
    999		will get activated once in_voltage0_raw goes above 1200 and will become
   1000		deactivated again once the value falls below 1150.
   1001
   1002What:		/sys/.../events/in_accel_x_raw_roc_rising_value
   1003What:		/sys/.../events/in_accel_x_raw_roc_falling_value
   1004What:		/sys/.../events/in_accel_y_raw_roc_rising_value
   1005What:		/sys/.../events/in_accel_y_raw_roc_falling_value
   1006What:		/sys/.../events/in_accel_z_raw_roc_rising_value
   1007What:		/sys/.../events/in_accel_z_raw_roc_falling_value
   1008What:		/sys/.../events/in_anglvel_x_raw_roc_rising_value
   1009What:		/sys/.../events/in_anglvel_x_raw_roc_falling_value
   1010What:		/sys/.../events/in_anglvel_y_raw_roc_rising_value
   1011What:		/sys/.../events/in_anglvel_y_raw_roc_falling_value
   1012What:		/sys/.../events/in_anglvel_z_raw_roc_rising_value
   1013What:		/sys/.../events/in_anglvel_z_raw_roc_falling_value
   1014What:		/sys/.../events/in_magn_x_raw_roc_rising_value
   1015What:		/sys/.../events/in_magn_x_raw_roc_falling_value
   1016What:		/sys/.../events/in_magn_y_raw_roc_rising_value
   1017What:		/sys/.../events/in_magn_y_raw_roc_falling_value
   1018What:		/sys/.../events/in_magn_z_raw_roc_rising_value
   1019What:		/sys/.../events/in_magn_z_raw_roc_falling_value
   1020What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
   1021What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
   1022What:		/sys/.../events/in_rot_from_north_true_raw_roc_rising_value
   1023What:		/sys/.../events/in_rot_from_north_true_raw_roc_falling_value
   1024What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
   1025What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
   1026What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
   1027What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
   1028What:		/sys/.../events/in_voltageY_supply_raw_roc_rising_value
   1029What:		/sys/.../events/in_voltageY_supply_raw_roc_falling_value
   1030What:		/sys/.../events/in_voltageY_raw_roc_rising_value
   1031What:		/sys/.../events/in_voltageY_raw_roc_falling_value
   1032What:		/sys/.../events/in_tempY_raw_roc_rising_value
   1033What:		/sys/.../events/in_tempY_raw_roc_falling_value
   1034KernelVersion:	2.6.37
   1035Contact:	linux-iio@vger.kernel.org
   1036Description:
   1037		Specifies the value of rate of change threshold that the
   1038		device is comparing against for the events enabled by
   1039		<type>[Y][_name]_roc[_rising|falling]_en.
   1040
   1041		If separate attributes exist for the two directions,
   1042		but direction is not specified for this attribute,
   1043		then a single threshold value applies to both directions.
   1044		The raw or input element of the name indicates whether the
   1045		value is in raw device units or in processed units (as _raw
   1046		and _input do on sysfs direct channel read attributes).
   1047
   1048What:		/sys/.../events/in_accel_x_thresh_rising_period
   1049What:		/sys/.../events/in_accel_x_thresh_falling_period
   1050What:		/sys/.../events/in_accel_x_roc_rising_period
   1051What:		/sys/.../events/in_accel_x_roc_falling_period
   1052What:		/sys/.../events/in_accel_y_thresh_rising_period
   1053What:		/sys/.../events/in_accel_y_thresh_falling_period
   1054What:		/sys/.../events/in_accel_y_roc_rising_period
   1055What:		/sys/.../events/in_accel_y_roc_falling_period
   1056What:		/sys/.../events/in_accel_z_thresh_rising_period
   1057What:		/sys/.../events/in_accel_z_thresh_falling_period
   1058What:		/sys/.../events/in_accel_z_roc_rising_period
   1059What:		/sys/.../events/in_accel_z_roc_falling_period
   1060What:		/sys/.../events/in_anglvel_x_thresh_rising_period
   1061What:		/sys/.../events/in_anglvel_x_thresh_falling_period
   1062What:		/sys/.../events/in_anglvel_x_roc_rising_period
   1063What:		/sys/.../events/in_anglvel_x_roc_falling_period
   1064What:		/sys/.../events/in_anglvel_y_thresh_rising_period
   1065What:		/sys/.../events/in_anglvel_y_thresh_falling_period
   1066What:		/sys/.../events/in_anglvel_y_roc_rising_period
   1067What:		/sys/.../events/in_anglvel_y_roc_falling_period
   1068What:		/sys/.../events/in_anglvel_z_thresh_rising_period
   1069What:		/sys/.../events/in_anglvel_z_thresh_falling_period
   1070What:		/sys/.../events/in_anglvel_z_roc_rising_period
   1071What:		/sys/.../events/in_anglvel_z_roc_falling_period
   1072What:		/sys/.../events/in_magn_x_thresh_rising_period
   1073What:		/sys/.../events/in_magn_x_thresh_falling_period
   1074What:		/sys/.../events/in_magn_x_roc_rising_period
   1075What:		/sys/.../events/in_magn_x_roc_falling_period
   1076What:		/sys/.../events/in_magn_y_thresh_rising_period
   1077What:		/sys/.../events/in_magn_y_thresh_falling_period
   1078What:		/sys/.../events/in_magn_y_roc_rising_period
   1079What:		/sys/.../events/in_magn_y_roc_falling_period
   1080What:		/sys/.../events/in_magn_z_thresh_rising_period
   1081What:		/sys/.../events/in_magn_z_thresh_falling_period
   1082What:		/sys/.../events/in_magn_z_roc_rising_period
   1083What:		/sys/.../events/in_magn_z_roc_falling_period
   1084What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
   1085What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
   1086What:		/sys/.../events/in_rot_from_north_magnetic_roc_rising_period
   1087What:		/sys/.../events/in_rot_from_north_magnetic_roc_falling_period
   1088What:		/sys/.../events/in_rot_from_north_true_thresh_rising_period
   1089What:		/sys/.../events/in_rot_from_north_true_thresh_falling_period
   1090What:		/sys/.../events/in_rot_from_north_true_roc_rising_period
   1091What:		/sys/.../events/in_rot_from_north_true_roc_falling_period
   1092What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
   1093What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
   1094What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
   1095What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
   1096What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
   1097What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
   1098What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
   1099What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
   1100What:		/sys/.../events/in_voltageY_supply_thresh_rising_period
   1101What:		/sys/.../events/in_voltageY_supply_thresh_falling_period
   1102What:		/sys/.../events/in_voltageY_supply_roc_rising_period
   1103What:		/sys/.../events/in_voltageY_supply_roc_falling_period
   1104What:		/sys/.../events/in_voltageY_thresh_rising_period
   1105What:		/sys/.../events/in_voltageY_thresh_falling_period
   1106What:		/sys/.../events/in_voltageY_roc_rising_period
   1107What:		/sys/.../events/in_voltageY_roc_falling_period
   1108What:		/sys/.../events/in_tempY_thresh_rising_period
   1109What:		/sys/.../events/in_tempY_thresh_falling_period
   1110What:		/sys/.../events/in_tempY_roc_rising_period
   1111What:		/sys/.../events/in_tempY_roc_falling_period
   1112What:		/sys/.../events/in_accel_x&y&z_mag_falling_period
   1113What:		/sys/.../events/in_intensity0_thresh_period
   1114What:		/sys/.../events/in_proximity0_thresh_period
   1115What:		/sys/.../events/in_activity_still_thresh_rising_period
   1116What:		/sys/.../events/in_activity_still_thresh_falling_period
   1117What:		/sys/.../events/in_activity_walking_thresh_rising_period
   1118What:		/sys/.../events/in_activity_walking_thresh_falling_period
   1119What:		/sys/.../events/in_activity_jogging_thresh_rising_period
   1120What:		/sys/.../events/in_activity_jogging_thresh_falling_period
   1121What:		/sys/.../events/in_activity_running_thresh_rising_period
   1122What:		/sys/.../events/in_activity_running_thresh_falling_period
   1123What:		/sys/.../events/in_illuminance_thresh_either_period
   1124KernelVersion:	2.6.37
   1125Contact:	linux-iio@vger.kernel.org
   1126Description:
   1127		Period of time (in seconds) for which the condition must be
   1128		met before an event is generated. If direction is not
   1129		specified then this period applies to both directions.
   1130
   1131What:		/sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
   1132What:		/sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
   1133What:		/sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
   1134KernelVersion:	4.2
   1135Contact:	linux-iio@vger.kernel.org
   1136Description:
   1137		If a low pass filter can be applied to the event generation
   1138		this property gives its 3db frequency in Hz.
   1139		A value of zero disables the filter.
   1140
   1141What:		/sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
   1142What:		/sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
   1143What:		/sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
   1144KernelVersion:	4.2
   1145Contact:	linux-iio@vger.kernel.org
   1146Description:
   1147		If a high pass filter can be applied to the event generation
   1148		this property gives its 3db frequency in Hz.
   1149		A value of zero disables the filter.
   1150
   1151What:		/sys/.../events/in_activity_still_thresh_rising_en
   1152What:		/sys/.../events/in_activity_still_thresh_falling_en
   1153What:		/sys/.../events/in_activity_walking_thresh_rising_en
   1154What:		/sys/.../events/in_activity_walking_thresh_falling_en
   1155What:		/sys/.../events/in_activity_jogging_thresh_rising_en
   1156What:		/sys/.../events/in_activity_jogging_thresh_falling_en
   1157What:		/sys/.../events/in_activity_running_thresh_rising_en
   1158What:		/sys/.../events/in_activity_running_thresh_falling_en
   1159KernelVersion:	3.19
   1160Contact:	linux-iio@vger.kernel.org
   1161Description:
   1162		Enables or disables activity events. Depending on direction
   1163		an event is generated when sensor ENTERS or LEAVES a given state.
   1164
   1165What:		/sys/.../events/in_activity_still_thresh_rising_value
   1166What:		/sys/.../events/in_activity_still_thresh_falling_value
   1167What:		/sys/.../events/in_activity_walking_thresh_rising_value
   1168What:		/sys/.../events/in_activity_walking_thresh_falling_value
   1169What:		/sys/.../events/in_activity_jogging_thresh_rising_value
   1170What:		/sys/.../events/in_activity_jogging_thresh_falling_value
   1171What:		/sys/.../events/in_activity_running_thresh_rising_value
   1172What:		/sys/.../events/in_activity_running_thresh_falling_value
   1173KernelVersion:	3.19
   1174Contact:	linux-iio@vger.kernel.org
   1175Description:
   1176		Confidence value (in units as percentage) to be used
   1177		for deciding when an event should be generated. E.g for
   1178		running: If the confidence value reported by the sensor
   1179		is greater than in_activity_running_thresh_rising_value
   1180		then the sensor ENTERS running state. Conversely, if the
   1181		confidence value reported by the sensor is lower than
   1182		in_activity_running_thresh_falling_value then the sensor
   1183		is LEAVING running state.
   1184
   1185What:		/sys/.../iio:deviceX/events/in_accel_mag_en
   1186What:		/sys/.../iio:deviceX/events/in_accel_mag_rising_en
   1187What:		/sys/.../iio:deviceX/events/in_accel_mag_falling_en
   1188What:		/sys/.../iio:deviceX/events/in_accel_x_mag_en
   1189What:		/sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
   1190What:		/sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
   1191What:		/sys/.../iio:deviceX/events/in_accel_y_mag_en
   1192What:		/sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
   1193What:		/sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
   1194What:		/sys/.../iio:deviceX/events/in_accel_z_mag_en
   1195What:		/sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
   1196What:		/sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
   1197What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
   1198What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
   1199KernelVersion:	2.6.37
   1200Contact:	linux-iio@vger.kernel.org
   1201Description:
   1202		Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
   1203		magnitude of the channel is compared to the threshold, not its
   1204		signed value.
   1205
   1206What:		/sys/.../events/in_accel_raw_mag_value
   1207What:		/sys/.../events/in_accel_x_raw_mag_rising_value
   1208What:		/sys/.../events/in_accel_y_raw_mag_rising_value
   1209What:		/sys/.../events/in_accel_z_raw_mag_rising_value
   1210KernelVersion:	2.6.37
   1211Contact:	linux-iio@vger.kernel.org
   1212Description:
   1213		The value to which the magnitude of the channel is compared. If
   1214		number or direction is not specified, applies to all channels of
   1215		this type.
   1216
   1217What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_en
   1218What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_en
   1219What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_en
   1220What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_en
   1221What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_en
   1222What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_en
   1223KernelVersion:	5.18
   1224Contact:	linux-iio@vger.kernel.org
   1225Description:
   1226		Similar to in_accel_mag[_y][_rising|_falling]_en, but the event
   1227		value is relative to a reference magnitude. The reference magnitude
   1228		includes the graviational acceleration.
   1229
   1230What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_value
   1231What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_rising_value
   1232What:		/sys/.../iio:deviceX/events/in_accel_mag_referenced_falling_value
   1233What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_value
   1234What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_rising_value
   1235What:		/sys/.../iio:deviceX/events/in_accel_y_mag_referenced_falling_value
   1236KernelVersion:	5.18
   1237Contact:	linux-iio@vger.kernel.org
   1238Description:
   1239		The value to which the reference magnitude of the channel is
   1240		compared. If the axis is not specified, it applies to all channels
   1241		of this type.
   1242
   1243What:		/sys/.../events/in_steps_change_en
   1244KernelVersion:	4.0
   1245Contact:	linux-iio@vger.kernel.org
   1246Description:
   1247		Event generated when channel passes a threshold on the absolute
   1248		change in value. E.g. for steps: a step change event is
   1249		generated each time the user takes N steps, where N is set using
   1250		in_steps_change_value.
   1251
   1252What:		/sys/.../events/in_steps_change_value
   1253KernelVersion:	4.0
   1254Contact:	linux-iio@vger.kernel.org
   1255Description:
   1256		Specifies the value of change threshold that the
   1257		device is comparing against for the events enabled by
   1258		<type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
   1259		if set to 3, a step change event will be generated every 3
   1260		steps.
   1261
   1262What:		/sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
   1263KernelVersion:	2.6.35
   1264Contact:	linux-iio@vger.kernel.org
   1265Description:
   1266		The name of the trigger source being used, as per string given
   1267		in /sys/class/iio/triggerY/name.
   1268
   1269What:		/sys/bus/iio/devices/iio:deviceX/bufferY/length
   1270KernelVersion:	5.11
   1271Contact:	linux-iio@vger.kernel.org
   1272Description:
   1273		Number of scans contained by the buffer.
   1274
   1275What:		/sys/bus/iio/devices/iio:deviceX/bufferY/enable
   1276KernelVersion:	5.11
   1277Contact:	linux-iio@vger.kernel.org
   1278Description:
   1279		Actually start the buffer capture up.  Will start trigger
   1280		if first device and appropriate.
   1281
   1282		Note that it might be impossible to configure other attributes,
   1283		(e.g.: events, scale, sampling rate) if they impact the currently
   1284		active buffer capture session.
   1285
   1286What:		/sys/bus/iio/devices/iio:deviceX/bufferY
   1287KernelVersion:	5.11
   1288Contact:	linux-iio@vger.kernel.org
   1289Description:
   1290		Directory containing interfaces for elements that will be
   1291		captured for a single triggered sample set in the buffer.
   1292
   1293		Since kernel 5.11 the scan_elements attributes are merged into
   1294		the bufferY directory, to be configurable per buffer.
   1295
   1296What:		/sys/.../iio:deviceX/bufferY/in_accel_x_en
   1297What:		/sys/.../iio:deviceX/bufferY/in_accel_y_en
   1298What:		/sys/.../iio:deviceX/bufferY/in_accel_z_en
   1299What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_en
   1300What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_en
   1301What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_en
   1302What:		/sys/.../iio:deviceX/bufferY/in_magn_x_en
   1303What:		/sys/.../iio:deviceX/bufferY/in_magn_y_en
   1304What:		/sys/.../iio:deviceX/bufferY/in_magn_z_en
   1305What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_en
   1306What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_en
   1307What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_en
   1308What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_en
   1309What:		/sys/.../iio:deviceX/bufferY/in_timestamp_en
   1310What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_en
   1311What:		/sys/.../iio:deviceX/bufferY/in_voltageY_en
   1312What:		/sys/.../iio:deviceX/bufferY/in_voltageY-voltageZ_en
   1313What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_en
   1314What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_en
   1315What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_en
   1316What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_en
   1317What:		/sys/.../iio:deviceX/bufferY/in_incli_x_en
   1318What:		/sys/.../iio:deviceX/bufferY/in_incli_y_en
   1319What:		/sys/.../iio:deviceX/bufferY/in_pressureY_en
   1320What:		/sys/.../iio:deviceX/bufferY/in_pressure_en
   1321What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_en
   1322What:		/sys/.../iio:deviceX/bufferY/in_proximity_en
   1323KernelVersion:	5.11
   1324Contact:	linux-iio@vger.kernel.org
   1325Description:
   1326		Scan element control for triggered data capture.
   1327
   1328What:		/sys/.../iio:deviceX/bufferY/in_accel_type
   1329What:		/sys/.../iio:deviceX/bufferY/in_anglvel_type
   1330What:		/sys/.../iio:deviceX/bufferY/in_magn_type
   1331What:		/sys/.../iio:deviceX/bufferY/in_incli_type
   1332What:		/sys/.../iio:deviceX/bufferY/in_voltageY_type
   1333What:		/sys/.../iio:deviceX/bufferY/in_voltage_type
   1334What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_type
   1335What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_type
   1336What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_type
   1337What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_type
   1338What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_type
   1339What:		/sys/.../iio:deviceX/bufferY/in_timestamp_type
   1340What:		/sys/.../iio:deviceX/bufferY/in_pressureY_type
   1341What:		/sys/.../iio:deviceX/bufferY/in_pressure_type
   1342What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_type
   1343What:		/sys/.../iio:deviceX/bufferY/in_proximity_type
   1344KernelVersion:	5.11
   1345Contact:	linux-iio@vger.kernel.org
   1346Description:
   1347		Description of the scan element data storage within the buffer
   1348		and hence the form in which it is read from user-space.
   1349		Form is [be|le]:[s|u]bits/storagebits[>>shift].
   1350		be or le specifies big or little endian. s or u specifies if
   1351		signed (2's complement) or unsigned. bits is the number of bits
   1352		of data and storagebits is the space (after padding) that it
   1353		occupies in the buffer. shift if specified, is the shift that
   1354		needs to be applied prior to masking out unused bits. Some
   1355		devices put their data in the middle of the transferred elements
   1356		with additional information on both sides.  Note that some
   1357		devices will have additional information in the unused bits
   1358		so to get a clean value, the bits value must be used to mask
   1359		the buffer output value appropriately.  The storagebits value
   1360		also specifies the data alignment.  So s48/64>>2 will be a
   1361		signed 48 bit integer stored in a 64 bit location aligned to
   1362		a 64 bit boundary. To obtain the clean value, shift right 2
   1363		and apply a mask to zero the top 16 bits of the result.
   1364		For other storage combinations this attribute will be extended
   1365		appropriately.
   1366
   1367What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
   1368KernelVersion:	2.6.37
   1369Contact:	linux-iio@vger.kernel.org
   1370Description:
   1371		If the type parameter can take one of a small set of values,
   1372		this attribute lists them.
   1373
   1374What:		/sys/.../iio:deviceX/bufferY/in_voltageY_index
   1375What:		/sys/.../iio:deviceX/bufferY/in_voltageY_supply_index
   1376What:		/sys/.../iio:deviceX/bufferY/in_voltageY_i_index
   1377What:		/sys/.../iio:deviceX/bufferY/in_voltageY_q_index
   1378What:		/sys/.../iio:deviceX/bufferY/in_voltage_i_index
   1379What:		/sys/.../iio:deviceX/bufferY/in_voltage_q_index
   1380What:		/sys/.../iio:deviceX/bufferY/in_accel_x_index
   1381What:		/sys/.../iio:deviceX/bufferY/in_accel_y_index
   1382What:		/sys/.../iio:deviceX/bufferY/in_accel_z_index
   1383What:		/sys/.../iio:deviceX/bufferY/in_anglvel_x_index
   1384What:		/sys/.../iio:deviceX/bufferY/in_anglvel_y_index
   1385What:		/sys/.../iio:deviceX/bufferY/in_anglvel_z_index
   1386What:		/sys/.../iio:deviceX/bufferY/in_magn_x_index
   1387What:		/sys/.../iio:deviceX/bufferY/in_magn_y_index
   1388What:		/sys/.../iio:deviceX/bufferY/in_magn_z_index
   1389What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_index
   1390What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_index
   1391What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_magnetic_tilt_comp_index
   1392What:		/sys/.../iio:deviceX/bufferY/in_rot_from_north_true_tilt_comp_index
   1393What:		/sys/.../iio:deviceX/bufferY/in_incli_x_index
   1394What:		/sys/.../iio:deviceX/bufferY/in_incli_y_index
   1395What:		/sys/.../iio:deviceX/bufferY/in_timestamp_index
   1396What:		/sys/.../iio:deviceX/bufferY/in_pressureY_index
   1397What:		/sys/.../iio:deviceX/bufferY/in_pressure_index
   1398What:		/sys/.../iio:deviceX/bufferY/in_rot_quaternion_index
   1399What:		/sys/.../iio:deviceX/bufferY/in_proximity_index
   1400KernelVersion:	5.11
   1401Contact:	linux-iio@vger.kernel.org
   1402Description:
   1403		A single positive integer specifying the position of this
   1404		scan element in the buffer. Note these are not dependent on
   1405		what is enabled and may not be contiguous. Thus for user-space
   1406		to establish the full layout these must be used in conjunction
   1407		with all _en attributes to establish which channels are present,
   1408		and the relevant _type attributes to establish the data storage
   1409		format.
   1410
   1411What:		/sys/.../iio:deviceX/in_activity_still_input
   1412What:		/sys/.../iio:deviceX/in_activity_walking_input
   1413What:		/sys/.../iio:deviceX/in_activity_jogging_input
   1414What:		/sys/.../iio:deviceX/in_activity_running_input
   1415KernelVersion:	3.19
   1416Contact:	linux-iio@vger.kernel.org
   1417Description:
   1418		This attribute is used to read the confidence for an activity
   1419		expressed in units as percentage.
   1420
   1421What:		/sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
   1422KernelVersion:	2.6.38
   1423Contact:	linux-iio@vger.kernel.org
   1424Description:
   1425		This attribute is used to read the amount of quadrature error
   1426		present in the device at a given time.
   1427
   1428What:		/sys/.../iio:deviceX/in_accelX_power_mode
   1429KernelVersion:	3.11
   1430Contact:	linux-iio@vger.kernel.org
   1431Description:
   1432		Specifies the chip power mode.
   1433		low_noise: reduce noise level from ADC,
   1434		low_power: enable low current consumption.
   1435		For a list of available output power modes read
   1436		in_accel_power_mode_available.
   1437
   1438What:		/sys/.../iio:deviceX/in_energy_input
   1439What:		/sys/.../iio:deviceX/in_energy_raw
   1440KernelVersion:	4.0
   1441Contact:	linux-iio@vger.kernel.org
   1442Description:
   1443		This attribute is used to read the energy value reported by the
   1444		device (e.g.: human activity sensors report energy burnt by the
   1445		user). Units after application of scale are Joules.
   1446
   1447What:		/sys/.../iio:deviceX/in_distance_input
   1448What:		/sys/.../iio:deviceX/in_distance_raw
   1449KernelVersion:	4.0
   1450Contact:	linux-iio@vger.kernel.org
   1451Description:
   1452		This attribute is used to read the measured distance to an object
   1453		or the distance covered by the user since the last reboot while
   1454		activated. Units after application of scale are meters.
   1455
   1456What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
   1457KernelVersion:	3.4.0
   1458Contact:	linux-iio@vger.kernel.org
   1459Description:
   1460		Writing '1' stores the current device configuration into
   1461		on-chip EEPROM. After power-up or chip reset the device will
   1462		automatically load the saved configuration.
   1463
   1464What:		/sys/.../iio:deviceX/in_proximity_raw
   1465What:		/sys/.../iio:deviceX/in_proximity_input
   1466What:		/sys/.../iio:deviceX/in_proximityY_raw
   1467KernelVersion:	3.4
   1468Contact:	linux-iio@vger.kernel.org
   1469Description:
   1470		Proximity measurement indicating that some
   1471		object is near the sensor, usually by observing
   1472		reflectivity of infrared or ultrasound emitted.
   1473
   1474		Often these sensors are unit less and as such conversion
   1475		to SI units is not possible. Higher proximity measurements
   1476		indicate closer objects, and vice versa. Units after
   1477		application of scale and offset are meters.
   1478
   1479What:		/sys/.../iio:deviceX/in_illuminance_input
   1480What:		/sys/.../iio:deviceX/in_illuminance_raw
   1481What:		/sys/.../iio:deviceX/in_illuminanceY_input
   1482What:		/sys/.../iio:deviceX/in_illuminanceY_raw
   1483What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
   1484What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
   1485What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
   1486KernelVersion:	3.4
   1487Contact:	linux-iio@vger.kernel.org
   1488Description:
   1489		Illuminance measurement, units after application of scale
   1490		and offset are lux.
   1491
   1492What:		/sys/.../iio:deviceX/in_intensityY_raw
   1493What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
   1494What:		/sys/.../iio:deviceX/in_intensityY_both_raw
   1495What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
   1496What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
   1497KernelVersion:	3.4
   1498Contact:	linux-iio@vger.kernel.org
   1499Description:
   1500		Unit-less light intensity. Modifiers both and ir indicate
   1501		that measurements contain visible and infrared light
   1502		components or just infrared light, respectively. Modifier
   1503		uv indicates that measurements contain ultraviolet light
   1504		components. Modifier duv indicates that measurements
   1505		contain deep ultraviolet light components.
   1506
   1507What:		/sys/.../iio:deviceX/in_uvindex_input
   1508KernelVersion:	4.6
   1509Contact:	linux-iio@vger.kernel.org
   1510Description:
   1511		UV light intensity index measuring the human skin's response to
   1512		different wavelength of sunlight weighted according to the
   1513		standardised CIE Erythemal Action Spectrum. UV index values range
   1514		from 0 (low) to >=11 (extreme).
   1515
   1516What:		/sys/.../iio:deviceX/in_intensity_integration_time
   1517What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
   1518What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
   1519What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
   1520What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
   1521What:		/sys/.../iio:deviceX/in_illuminance_integration_time
   1522KernelVersion:	3.12
   1523Contact:	linux-iio@vger.kernel.org
   1524Description:
   1525		This attribute is used to get/set the integration time in
   1526		seconds. If shared across all channels of a given type,
   1527		<type>_integration_time is used.
   1528
   1529What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
   1530KernelVersion:	4.0
   1531Contact:	linux-iio@vger.kernel.org
   1532Description:
   1533		Number of seconds in which to compute speed.
   1534
   1535What:		/sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
   1536KernelVersion:	3.15
   1537Contact:	linux-iio@vger.kernel.org
   1538Description:
   1539		Raw value of quaternion components using a format
   1540		x y z w. Here x, y, and z component represents the axis about
   1541		which a rotation will occur and w component represents the
   1542		amount of rotation.
   1543
   1544What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
   1545What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
   1546What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
   1547What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
   1548KernelVersion:	3.15
   1549Contact:	linux-iio@vger.kernel.org
   1550Description:
   1551		Raw value of rotation from true/magnetic north measured with
   1552		or without compensation from tilt sensors.
   1553
   1554What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_raw
   1555What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
   1556What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
   1557KernelVersion:	3.18
   1558Contact:	linux-iio@vger.kernel.org
   1559Description:
   1560		Raw current measurement from channel X. Units are in milliamps
   1561		after application of scale and offset. If no offset or scale is
   1562		present, output should be considered as processed with the
   1563		unit in milliamps.
   1564
   1565		Channels with 'i' and 'q' modifiers always exist in pairs and both
   1566		channels refer to the same signal. The 'i' channel contains the in-phase
   1567		component of the signal while the 'q' channel contains the quadrature
   1568		component.
   1569
   1570What:		/sys/.../iio:deviceX/in_energy_en
   1571What:		/sys/.../iio:deviceX/in_distance_en
   1572What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
   1573What:		/sys/.../iio:deviceX/in_steps_en
   1574KernelVersion:	3.19
   1575Contact:	linux-iio@vger.kernel.org
   1576Description:
   1577		Activates a device feature that runs in firmware/hardware.
   1578		E.g. for steps: the pedometer saves power while not used;
   1579		when activated, it will count the steps taken by the user in
   1580		firmware and export them through in_steps_input.
   1581
   1582What:		/sys/.../iio:deviceX/in_steps_input
   1583KernelVersion:	3.19
   1584Contact:	linux-iio@vger.kernel.org
   1585Description:
   1586		This attribute is used to read the number of steps taken by the user
   1587		since the last reboot while activated.
   1588
   1589What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
   1590What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
   1591KernelVersion:	3.19
   1592Contact:	linux-iio@vger.kernel.org
   1593Description:
   1594		This attribute is used to read the current speed value of the
   1595		user (which is the norm or magnitude of the velocity vector).
   1596		Units after application of scale are m/s.
   1597
   1598What:		/sys/.../iio:deviceX/in_steps_debounce_count
   1599KernelVersion:	4.0
   1600Contact:	linux-iio@vger.kernel.org
   1601Description:
   1602		Specifies the number of steps that must occur within
   1603		in_steps_filter_debounce_time for the pedometer to decide the
   1604		consumer is making steps.
   1605
   1606What:		/sys/.../iio:deviceX/in_steps_debounce_time
   1607KernelVersion:	4.0
   1608Contact:	linux-iio@vger.kernel.org
   1609Description:
   1610		Specifies number of seconds in which we compute the steps
   1611		that occur in order to decide if the consumer is making steps.
   1612
   1613What:		/sys/bus/iio/devices/iio:deviceX/bufferY/watermark
   1614KernelVersion:	5.11
   1615Contact:	linux-iio@vger.kernel.org
   1616Description:
   1617		A single positive integer specifying the maximum number of scan
   1618		elements to wait for.
   1619
   1620		Poll will block until the watermark is reached.
   1621
   1622		Blocking read will wait until the minimum between the requested
   1623		read amount or the low water mark is available.
   1624
   1625		Non-blocking read will retrieve the available samples from the
   1626		buffer even if there are less samples then watermark level. This
   1627		allows the application to block on poll with a timeout and read
   1628		the available samples after the timeout expires and thus have a
   1629		maximum delay guarantee.
   1630
   1631What:		/sys/bus/iio/devices/iio:deviceX/bufferY/data_available
   1632KernelVersion:	5.11
   1633Contact:	linux-iio@vger.kernel.org
   1634Description:
   1635		A read-only value indicating the bytes of data available in the
   1636		buffer. In the case of an output buffer, this indicates the
   1637		amount of empty space available to write data to. In the case of
   1638		an input buffer, this indicates the amount of data available for
   1639		reading.
   1640
   1641What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
   1642KernelVersion: 4.2
   1643Contact:	linux-iio@vger.kernel.org
   1644Description:
   1645		A read-only boolean value that indicates if the hardware fifo is
   1646		currently enabled or disabled. If the device does not have a
   1647		hardware fifo this entry is not present.
   1648		The hardware fifo is enabled when the buffer is enabled if the
   1649		current hardware fifo watermark level is set and other current
   1650		device settings allows it (e.g. if a trigger is set that samples
   1651		data differently that the hardware fifo does then hardware fifo
   1652		will not enabled).
   1653
   1654		If the hardware fifo is enabled and the level of the hardware
   1655		fifo reaches the hardware fifo watermark level the device will
   1656		flush its hardware fifo to the device buffer. Doing a non
   1657		blocking read on the device when no samples are present in the
   1658		device buffer will also force a flush.
   1659
   1660		When the hardware fifo is enabled there is no need to use a
   1661		trigger to use buffer mode since the watermark settings
   1662		guarantees that the hardware fifo is flushed to the device
   1663		buffer.
   1664
   1665What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
   1666KernelVersion:	4.12
   1667Contact:	linux-iio@vger.kernel.org
   1668Description:
   1669		A read/write property to provide capability to delay reporting of
   1670		samples till a timeout is reached. This allows host processors to
   1671		sleep, while the sensor is storing samples in its internal fifo.
   1672		The maximum timeout in seconds can be specified by setting
   1673		hwfifo_timeout.The current delay can be read by reading
   1674		hwfifo_timeout. A value of 0 means that there is no timeout.
   1675
   1676What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
   1677KernelVersion: 4.2
   1678Contact:	linux-iio@vger.kernel.org
   1679Description:
   1680		Read-only entry that contains a single integer specifying the
   1681		current watermark level for the hardware fifo. If the device
   1682		does not have a hardware fifo this entry is not present.
   1683		The watermark level for the hardware fifo is set by the driver
   1684		based on the value set by the user in buffer/watermark but
   1685		taking into account hardware limitations (e.g. most hardware
   1686		buffers are limited to 32-64 samples, some hardware buffers
   1687		watermarks are fixed or have minimum levels).  A value of 0
   1688		means that the hardware watermark is unset.
   1689
   1690What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
   1691KernelVersion: 4.2
   1692Contact:       linux-iio@vger.kernel.org
   1693Description:
   1694		A single positive integer specifying the minimum watermark level
   1695		for the hardware fifo of this device. If the device does not
   1696		have a hardware fifo this entry is not present.
   1697
   1698		If the user sets buffer/watermark to a value less than this one,
   1699		then the hardware watermark will remain unset.
   1700
   1701What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
   1702KernelVersion: 4.2
   1703Contact:       linux-iio@vger.kernel.org
   1704Description:
   1705		A single positive integer specifying the maximum watermark level
   1706		for the hardware fifo of this device. If the device does not
   1707		have a hardware fifo this entry is not present.
   1708
   1709		If the user sets buffer/watermark to a value greater than this
   1710		one, then the hardware watermark will be capped at this value.
   1711
   1712What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
   1713KernelVersion: 4.2
   1714Contact:       linux-iio@vger.kernel.org
   1715Description:
   1716		A list of positive integers specifying the available watermark
   1717		levels for the hardware fifo. This entry is optional and if it
   1718		is not present it means that all the values between
   1719		hwfifo_watermark_min and hwfifo_watermark_max are supported.
   1720
   1721		If the user sets buffer/watermark to a value greater than
   1722		hwfifo_watermak_min but not equal to any of the values in this
   1723		list, the driver will chose an appropriate value for the
   1724		hardware fifo watermark level.
   1725
   1726What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
   1727What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
   1728What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
   1729What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
   1730KernelVersion:	4.1
   1731Contact:	linux-iio@vger.kernel.org
   1732Description:
   1733		The emissivity ratio of the surface in the field of view of the
   1734		contactless temperature sensor.  Emissivity varies from 0 to 1,
   1735		with 1 being the emissivity of a black body.
   1736
   1737What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
   1738What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
   1739What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
   1740KernelVersion:	4.2
   1741Contact:	linux-iio@vger.kernel.org
   1742Description:
   1743		Hardware applied number of measurements for acquiring one
   1744		data point. The HW will do <type>[_name]_oversampling_ratio
   1745		measurements and return the average value as output data. Each
   1746		value resulted from <type>[_name]_oversampling_ratio measurements
   1747		is considered as one sample for <type>[_name]_sampling_frequency.
   1748
   1749What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
   1750What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
   1751What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
   1752What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
   1753What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
   1754What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
   1755What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
   1756What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
   1757What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_o2_raw
   1758What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_o2_raw
   1759What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
   1760What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
   1761KernelVersion:	4.3
   1762Contact:	linux-iio@vger.kernel.org
   1763Description:
   1764		Raw (unscaled no offset etc.) reading of a substance. Units
   1765		after application of scale and offset are percents.
   1766
   1767What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
   1768What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
   1769What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw
   1770What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
   1771KernelVersion:	4.3
   1772Contact:	linux-iio@vger.kernel.org
   1773Description:
   1774		Raw (unscaled no offset etc.) resistance reading that can be processed
   1775		into an ohm value.
   1776
   1777What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
   1778KernelVersion:	4.1.0
   1779Contact:	linux-iio@vger.kernel.org
   1780Description:
   1781		'1' (enable) or '0' (disable) specifying the enable
   1782		of heater function. Same reading values apply.
   1783
   1784		This ABI is especially applicable for humidity sensors
   1785		to heatup the device and get rid of any condensation
   1786		in some humidity environment
   1787
   1788What:		/sys/bus/iio/devices/iio:deviceX/in_ph_raw
   1789KernelVersion:	4.5
   1790Contact:	linux-iio@vger.kernel.org
   1791Description:
   1792		Raw (unscaled no offset etc.) pH reading of a substance as a negative
   1793		base-10 logarithm of hydrodium ions in a litre of water.
   1794
   1795What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
   1796What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
   1797What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
   1798What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
   1799What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
   1800KernelVersion:  4.6
   1801Contact:        linux-iio@vger.kernel.org
   1802Description:
   1803		Mounting matrix for IIO sensors. This is a rotation matrix which
   1804		informs userspace about sensor chip's placement relative to the
   1805		main hardware it is mounted on.
   1806
   1807		Main hardware placement is defined according to the local
   1808		reference frame related to the physical quantity the sensor
   1809		measures.
   1810
   1811		Given that the rotation matrix is defined in a board specific
   1812		way (platform data and / or device-tree), the main hardware
   1813		reference frame definition is left to the implementor's choice
   1814		(see below for a magnetometer example).
   1815
   1816		Applications should apply this rotation matrix to samples so
   1817		that when main hardware reference frame is aligned onto local
   1818		reference frame, then sensor chip reference frame is also
   1819		perfectly aligned with it.
   1820
   1821		Matrix is a 3x3 unitary matrix and typically looks like
   1822		[0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
   1823		[1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
   1824		are perfectly aligned with each other.
   1825
   1826		For example, a mounting matrix for a magnetometer sensor informs
   1827		userspace about sensor chip's ORIENTATION relative to the main
   1828		hardware.
   1829
   1830		More specifically, main hardware orientation is defined with
   1831		respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
   1832
   1833		* Y is in the ground plane and positive towards magnetic North ;
   1834		* X is in the ground plane, perpendicular to the North axis and
   1835		  positive towards the East ;
   1836		* Z is perpendicular to the ground plane and positive upwards.
   1837
   1838		An implementor might consider that for a hand-held device, a
   1839		'natural' orientation would be 'front facing camera at the top'.
   1840		The main hardware reference frame could then be described as :
   1841
   1842		* Y is in the plane of the screen and is positive towards the
   1843		  top of the screen ;
   1844		* X is in the plane of the screen, perpendicular to Y axis, and
   1845		  positive towards the right hand side of the screen ;
   1846		* Z is perpendicular to the screen plane and positive out of the
   1847		  screen.
   1848
   1849		Another example for a quadrotor UAV might be :
   1850
   1851		* Y is in the plane of the propellers and positive towards the
   1852		  front-view camera;
   1853		* X is in the plane of the propellers, perpendicular to Y axis,
   1854		  and positive towards the starboard side of the UAV ;
   1855		* Z is perpendicular to propellers plane and positive upwards.
   1856
   1857What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
   1858KernelVersion:	4.8
   1859Contact:	linux-iio@vger.kernel.org
   1860Description:
   1861		Raw (unscaled no offset etc.) electric conductivity reading that
   1862		can be processed to siemens per meter.
   1863
   1864What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
   1865KernelVersion:	4.10
   1866Contact:	linux-iio@vger.kernel.org
   1867Description:
   1868		This interface is deprecated; please use the Counter subsystem.
   1869
   1870		Raw counter device counts from channel Y. For quadrature
   1871		counters, multiplication by an available [Y]_scale results in
   1872		the counts of a single quadrature signal phase from channel Y.
   1873
   1874What:		/sys/bus/iio/devices/iio:deviceX/in_indexY_raw
   1875KernelVersion:	4.10
   1876Contact:	linux-iio@vger.kernel.org
   1877Description:
   1878		This interface is deprecated; please use the Counter subsystem.
   1879
   1880		Raw counter device index value from channel Y. This attribute
   1881		provides an absolute positional reference (e.g. a pulse once per
   1882		revolution) which may be used to home positional systems as
   1883		required.
   1884
   1885What:		/sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
   1886KernelVersion:	4.12
   1887Contact:	linux-iio@vger.kernel.org
   1888Description:
   1889		This interface is deprecated; please use the Counter subsystem.
   1890
   1891		A list of possible counting directions which are:
   1892
   1893		- "up"	: counter device is increasing.
   1894		- "down": counter device is decreasing.
   1895
   1896What:		/sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
   1897KernelVersion:	4.12
   1898Contact:	linux-iio@vger.kernel.org
   1899Description:
   1900		This interface is deprecated; please use the Counter subsystem.
   1901
   1902		Raw counter device counters direction for channel Y.
   1903
   1904What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_label
   1905What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_label
   1906KernelVersion:	5.8
   1907Contact:	linux-iio@vger.kernel.org
   1908Description:
   1909		Optional symbolic label to a device channel.
   1910		If a label is defined for this channel add that to the channel
   1911		specific attributes. This is useful for userspace to be able to
   1912		better identify an individual channel.
   1913
   1914What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
   1915KernelVersion:	4.18
   1916Contact:	linux-iio@vger.kernel.org
   1917Description:
   1918		Raw (unscaled) phase difference reading from channel Y
   1919		that can be processed to radians.
   1920
   1921What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
   1922What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
   1923What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
   1924What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
   1925What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
   1926What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
   1927What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
   1928What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
   1929KernelVersion:	4.22
   1930Contact:	linux-iio@vger.kernel.org
   1931Description:
   1932		Mass concentration reading of particulate matter in ug / m3.
   1933		pmX consists of particles with aerodynamic diameter less or
   1934		equal to X micrometers.
   1935
   1936What:		/sys/bus/iio/devices/iio:deviceX/events/in_illuminance_period_available
   1937Date:		November 2019
   1938KernelVersion:	5.4
   1939Contact:	linux-iio@vger.kernel.org
   1940Description:
   1941		List of valid periods (in seconds) for which the light intensity
   1942		must be above the threshold level before interrupt is asserted.
   1943
   1944What:		/sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
   1945KernelVersion:	5.5
   1946Contact:	linux-iio@vger.kernel.org
   1947Description:
   1948		Center frequency in Hz for a notch filter. Used i.e. for line
   1949		noise suppression.
   1950
   1951What:		/sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
   1952KernelVersion:	5.5
   1953Contact:	linux-iio@vger.kernel.org
   1954Description:
   1955		One of the following thermocouple types: B, E, J, K, N, R, S, T.
   1956
   1957What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibambient
   1958What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibambient
   1959KernelVersion:	5.10
   1960Contact:	linux-iio@vger.kernel.org
   1961Description:
   1962		Calibrated ambient temperature for object temperature
   1963		calculation in milli degrees Celsius.
   1964
   1965What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_x_raw
   1966What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_y_raw
   1967What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_z_raw
   1968KernelVersion:	5.10
   1969Contact:	linux-iio@vger.kernel.org
   1970Description:
   1971		Unscaled light intensity according to CIE 1931/DIN 5033 color space.
   1972		Units after application of scale are nano nanowatts per square meter.
   1973
   1974What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_label
   1975KernelVersion:	5.12
   1976Contact:	linux-iio@vger.kernel.org
   1977Description:
   1978		Optional symbolic label for channel Y.
   1979		For Intel hid hinge sensor, the label values are:
   1980		hinge, keyboard, screen. It means the three channels
   1981		each correspond respectively to hinge angle, keyboard angle,
   1982		and screen angle.
   1983
   1984What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_hysteresis_relative
   1985What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_hysteresis_relative
   1986KernelVersion:	5.12
   1987Contact:	linux-iio@vger.kernel.org
   1988Description:
   1989		Specify the percent for light sensor relative to the channel
   1990		absolute value that a data field should change before an event
   1991		is generated. Units are a percentage of the prior reading.
   1992
   1993What:		/sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
   1994Date:		June 2020
   1995KernelVersion:	5.8
   1996Contact:	linux-iio@vger.kernel.org
   1997Description:
   1998		Some sensors have the ability to apply auto calibration at
   1999		runtime. For example, it may be necessary to compensate for
   2000		contaminant build-up in a measurement chamber or optical
   2001		element deterioration that would otherwise lead to sensor drift.
   2002
   2003		Writing 1 or 0 to this attribute will respectively activate or
   2004		deactivate this auto calibration function.
   2005
   2006		Upon reading, the current status is returned.
   2007
   2008What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value
   2009Date:		June 2020
   2010KernelVersion:	5.8
   2011Contact:	linux-iio@vger.kernel.org
   2012Description:
   2013		Some sensors have the ability to apply a manual calibration using
   2014		a known measurement value, perhaps obtained from an external
   2015		reference device.
   2016
   2017		Writing a value to this function will force such a calibration
   2018		change. For the scd30 the value should be from the range
   2019		[400 1 2000].
   2020
   2021		Note for the scd30 that a valid value may only be obtained once
   2022		it is has been written. Until then any read back of this value
   2023		should be ignored. As for the scd4x an error will be returned
   2024		immediately if the manual calibration has failed.
   2025
   2026What:		/sys/bus/iio/devices/iio:deviceX/calibration_forced_value_available
   2027KernelVersion:  5.15
   2028Contact:        linux-iio@vger.kernel.org
   2029Description:
   2030		Available range for the forced calibration value, expressed as:
   2031
   2032		- a range specified as "[min step max]"