Documentation/ABI/testing/sysfs-bus-iio - linux - Git at Google

 What:		/sys/bus/iio/devices/iio:deviceX
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware chip or device accessed by one communication port.
 		Corresponds to a grouping of sensor channels. X is the IIO
 		index of the device.

 What:		/sys/bus/iio/devices/triggerX
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		An event driven driver of data capture to an in kernel buffer.
 		May be provided by a device driver that also has an IIO device
 		based on hardware generated events (e.g. data ready) or
 		provided by a separate driver for other hardware (e.g.
 		periodic timer, GPIO or high resolution timer).
 		Contains trigger type specific elements. These do not
 		generalize well and hence are not documented in this file.
 		X is the IIO index of the trigger.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Directory of attributes relating to the buffer for the device.

 What:		/sys/bus/iio/devices/iio:deviceX/name
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Description of the physical chip / device for device X.
 		Typically a part number.

 What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
 KernelVersion:	4.5
 Contact:	linux-iio@vger.kernel.org
 Description:
 		String identifying current posix clock used to timestamp
 		buffered samples and events for device X.

 What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency
 What:		/sys/bus/iio/devices/iio:deviceX/buffer/sampling_frequency
 What:		/sys/bus/iio/devices/triggerX/sampling_frequency
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Some devices have internal clocks.  This parameter sets the
 		resulting sampling frequency.  In many devices this
 		parameter has an effect on input filters etc. rather than
 		simply controlling when the input is sampled.  As this
 		effects data ready triggers, hardware buffers and the sysfs
 		direct access interfaces, it may be found in any of the
 		relevant directories.  If it effects all of the above
 		then it is to be found in the base device directory.

 What:		/sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
 What:		/sys/.../iio:deviceX/buffer/sampling_frequency_available
 What:		/sys/bus/iio/devices/triggerX/sampling_frequency_available
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		When the internal sampling clock can only take a small
 		discrete set of values, this file lists those available.

 What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware dependent ADC oversampling. Controls the sampling ratio
 		of the digital filter if available.

 What:		/sys/bus/iio/devices/iio:deviceX/oversampling_ratio_available
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware dependent values supported by the oversampling filter.

 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no bias removal etc.) voltage measurement from
 		channel Y. In special cases where the channel does not
 		correspond to externally available input one of the named
 		versions may be used. The number must always be specified and
 		unique to allow association with event codes. Units after
 		application of scale and offset are millivolts.

 		Channels with 'i' and 'q' modifiers always exist in pairs and both
 		channels refer to the same signal. The 'i' channel contains the in-phase
 		component of the signal while the 'q' channel contains the quadrature
 		component.

 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled) differential voltage measurement equivalent to
 		channel Y - channel Z where these channel numbers apply to the
 		physically equivalent inputs when non differential readings are
 		separately available. In differential only parts, then all that
 		is required is a consistent labeling.  Units after application
 		of scale and offset are millivolts.

 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_raw
 KernelVersion:	3.17
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no bias removal etc.) current measurement from
 		channel Y. In special cases where the channel does not
 		correspond to externally available input one of the named
 		versions may be used. The number must always be specified and
 		unique to allow association with event codes. Units after
 		application of scale and offset are milliamps.

 What:		/sys/bus/iio/devices/iio:deviceX/in_powerY_raw
 KernelVersion:	4.5
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no bias removal etc.) power measurement from
 		channel Y. The number must always be specified and
 		unique to allow association with event codes. Units after
 		application of scale and offset are milliwatts.

 What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
 KernelVersion:	3.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw capacitance measurement from channel Y. Units after
 		application of scale and offset are nanofarads.

 What:		/sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
 KernelVersion:	3.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw differential capacitance measurement equivalent to
 		channel Y - channel Z where these channel numbers apply to the
 		physically equivalent inputs when non differential readings are
 		separately available. In differential only parts, then all that
 		is required is a consistent labeling.  Units after application
 		of scale and offset are nanofarads.

 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_ambient_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no bias removal etc.) temperature measurement.
 		If an axis is specified it generally means that the temperature
 		sensor is associated with one part of a compound device (e.g.
 		a gyroscope axis). The ambient and object modifiers distinguish
 		between ambient (reference) and distant temperature for contact-
 		less measurements. Units after application of scale and offset
 		are milli degrees Celsius.

 What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_input
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Scaled temperature measurement in milli degrees Celsius.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Acceleration in direction x, y or z (may be arbitrarily assigned
 		but should match other such assignments on device).
 		Has all of the equivalent parameters as per voltageY. Units
 		after application of scale and offset are m/s^2.

 What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
 KernelVersion:	4.11
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Gravity in direction x, y or z (may be arbitrarily assigned
 		but should match other such assignments on device).
 		Units after application of scale and offset are m/s^2.

 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_raw
 KernelVersion:	4.17
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Angle of rotation. Units after application of scale and offset
 		are radians.

 What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_positionrelative_y_raw
 KernelVersion:	4.18
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Relative position in direction x or y on a pad (may be
 		arbitrarily assigned but should match other such assignments on
 		device).
 		Units after application of scale and offset are milli percents
 		from the pad's size in both directions. Should be calibrated by
 		the consumer.

 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Angular velocity about axis x, y or z (may be arbitrarily
 		assigned). Has all the equivalent parameters as	per voltageY.
 		Units after application of scale and offset are	radians per
 		second.

 What:		/sys/bus/iio/devices/iio:deviceX/in_incli_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_incli_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_incli_z_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Inclination raw reading about axis x, y or z (may be
 		arbitrarily assigned). Data converted by application of offset
 		and scale to degrees.

 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_raw
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Magnetic field along axis x, y or z (may be arbitrarily
 		assigned).  Data converted by application of offset
 		then scale to Gauss.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_peak_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_peak_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_peak_raw
 KernelVersion:	2.6.36
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Highest value since some reset condition.  These
 		attributes allow access to this and are otherwise
 		the direct equivalent of the <type>Y[_name]_raw attributes.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_xyz_squared_peak_raw
 KernelVersion:	2.6.36
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A computed peak value based on the sum squared magnitude of
 		the underlying value in the specified directions.

 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_raw
 KernelVersion:	3.8
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw pressure measurement from channel Y. Units after
 		application of scale and offset are kilopascal.

 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_input
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_input
 KernelVersion:	3.8
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Scaled pressure measurement from channel Y, in kilopascal.

 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_raw
 KernelVersion:	3.14
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw humidity measurement of air. Units after application of
 		scale and offset are milli percent.

 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_input
 KernelVersion:	3.14
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Scaled humidity measurement in milli percent.

 What:		/sys/bus/iio/devices/iio:deviceX/in_X_mean_raw
 KernelVersion:	3.5
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Averaged raw measurement from channel X. The number of values
 		used for averaging is device specific. The converting rules for
 		normal raw values also applies to the averaged raw values.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_tempY_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_offset
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_offset
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If known for a device, offset to be added to <type>[Y]_raw prior
 		to scaling by <type>[Y]_scale in order to obtain value in the
 		<type> units as specified in <type>[Y]_raw documentation.
 		Not present if the offset is always 0 or unknown. If Y or
 		axis <x|y|z> is not present, then the offset applies to all
 		in channels of <type>.
 		May be writable if a variable offset can be applied on the
 		device. Note that this is different to calibbias which
 		is for devices (or drivers) that apply offsets to compensate
 		for variation between different instances of the part, typically
 		adjusted by using some hardware supported calibration procedure.
 		Calibbias is applied internally, offset is applied in userspace
 		to the _raw output.

 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltage-voltage_scale
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_supply_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_i_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentY_q_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_i_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_current_q_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_scale
 What:		/sys/bus/iio/devices/iio:deviceX/in_angl_scale
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If known for a device, scale to be applied to <type>Y[_name]_raw
 		post addition of <type>[Y][_name]_offset in order to obtain the
 		measured value in <type> units as specified in
 		<type>[Y][_name]_raw documentation.  If shared across all in
 		channels then Y and <x|y|z> are not present and the value is
 		called <type>[Y][_name]_scale. The peak modifier means this
 		value is applied to <type>Y[_name]_peak_raw values.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibbias
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibbias
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware applied calibration offset (assumed to fix production
 		inaccuracies).

 What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_i_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltageY_q_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltage_i_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltage_q_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_voltage_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_accel_x_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_accel_y_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
 What		/sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
 what		/sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
 what		/sys/bus/iio/devices/iio:deviceX/in_proximity0_calibscale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressureY_calibscale
 What:		/sys/bus/iio/devices/iio:deviceX/in_pressure_calibscale
 What:		/sys/bus/iio/devices/iio:deviceX/in_illuminance_calibscale
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware applied calibration scale factor (assumed to fix
 		production inaccuracies).  If shared across all channels,
 		<type>_calibscale is used.

 What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Gender of the user (e.g.: male, female) used by some pedometers
 		to compute the stride length, distance, speed and activity
 		type.

 What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibgender_available
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibgender_available
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Lists all available gender values (e.g.: male, female).

 What:		/sys/bus/iio/devices/iio:deviceX/in_activity_calibheight
 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibheight
 What:		/sys/bus/iio/devices/iio:deviceX/in_distance_calibheight
 What:		/sys/bus/iio/devices/iio:deviceX/in_velocity_calibheight
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Height of the user (in meters) used by some pedometers
 		to compute the stride length, distance, speed and activity
 		type.

 What:		/sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Weight of the user (in kg). It is needed by some pedometers
 		to compute the calories burnt by the user.

 What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
 What:		/sys/.../iio:deviceX/in_anglvel_scale_available
 What:		/sys/.../iio:deviceX/in_magn_scale_available
 What:		/sys/.../iio:deviceX/in_illuminance_scale_available
 What:		/sys/.../iio:deviceX/in_intensity_scale_available
 What:		/sys/.../iio:deviceX/in_proximity_scale_available
 What:		/sys/.../iio:deviceX/in_voltageX_scale_available
 What:		/sys/.../iio:deviceX/in_voltage-voltage_scale_available
 What:		/sys/.../iio:deviceX/out_voltageX_scale_available
 What:		/sys/.../iio:deviceX/out_altvoltageX_scale_available
 What:		/sys/.../iio:deviceX/in_capacitance_scale_available
 What:		/sys/.../iio:deviceX/in_pressure_scale_available
 What:		/sys/.../iio:deviceX/in_pressureY_scale_available
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If a discrete set of scale values is available, they
 		are listed in this attribute.

 What		/sys/bus/iio/devices/iio:deviceX/out_voltageY_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_red_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_green_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_blue_hardwaregain
 What:		/sys/bus/iio/devices/iio:deviceX/in_intensity_clear_hardwaregain
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware applied gain factor. If shared across all channels,
 		<type>_hardwaregain is used.

 What:		/sys/.../in_accel_filter_low_pass_3db_frequency
 What:		/sys/.../in_magn_filter_low_pass_3db_frequency
 What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
 KernelVersion:	3.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If a known or controllable low pass filter is applied
 		to the underlying data channel, then this parameter
 		gives the 3dB frequency of the filter in Hz.

 What:		/sys/.../in_accel_filter_high_pass_3db_frequency
 What:		/sys/.../in_anglvel_filter_high_pass_3db_frequency
 What:		/sys/.../in_magn_filter_high_pass_3db_frequency
 KernelVersion:	4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If a known or controllable high pass filter is applied
 		to the underlying data channel, then this parameter
 		gives the 3dB frequency of the filter in Hz.

 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled, no bias etc.) output voltage for
 		channel Y.  The number must always be specified and
 		unique if the output corresponds to a single channel.
 		While DAC like devices typically use out_voltage,
 		a continuous frequency generating device, such as
 		a DDS or PLL should use out_altvoltage.

 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled, no bias etc.) output voltage for an aggregate of
 		channel Y, channel Z, etc.  This interface is available in cases
 		where a single output sets the value for multiple channels
 		simultaneously.

 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the output powerdown mode.
 		DAC output stage is disconnected from the amplifier and
 		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
 		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
 		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
 		100kohm_to_gnd: connected to ground via an 100kOhm resistor,
 		125kohm_to_gnd: connected to ground via an 125kOhm resistor,
 		500kohm_to_gnd: connected to ground via a 500kOhm resistor,
 		640kohm_to_gnd: connected to ground via a 640kOhm resistor,
 		three_state: left floating.
 		For a list of available output power down options read
 		outX_powerdown_mode_available. If Y is not present the
 		mode is shared across all outputs.

 What:		/sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
 What:		/sys/.../iio:deviceX/out_voltage_powerdown_mode_available
 What:		/sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
 What:		/sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Lists all available output power down modes.
 		If Y is not present the mode is shared across all outputs.

 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Writing 1 causes output Y to enter the power down mode specified
 		by the corresponding outY_powerdown_mode. DAC output stage is
 		disconnected from the amplifier. Clearing returns to normal
 		operation. Y may be suppressed if all outputs are controlled
 		together.

 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
 KernelVersion:	3.4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Output frequency for channel Y in Hz. The number must always be
 		specified and unique if the output corresponds to a single
 		channel.

 What:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
 KernelVersion:	3.4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Phase in radians of one frequency/clock output Y
 		(out_altvoltageY) relative to another frequency/clock output
 		(out_altvoltageZ) of the device X. The number must always be
 		specified and unique if the output corresponds to a single
 		channel.

 What:		/sys/bus/iio/devices/iio:deviceX/events
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Configuration of which hardware generated events are passed up
 		to user-space.

 What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_x_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_x_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_y_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_z_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_x_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_falling_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_thresh_either_en
 What:		/sys/.../iio:deviceX/events/in_tempY_thresh_rising_en
 What:		/sys/.../iio:deviceX/events/in_tempY_thresh_falling_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Event generated when channel passes a threshold in the specified
 		(_rising|_falling) direction. If the direction is not specified,
 		then either the device will report an event which ever direction
 		a single threshold value is passed in (e.g.
 		<type>[Y][_name]_<raw|input>_thresh_value) or
 		<type>[Y][_name]_<raw|input>_thresh_rising_value and
 		<type>[Y][_name]_<raw|input>_thresh_falling_value may take
 		different values, but the device can only enable both thresholds
 		or neither.
 		Note the driver will assume the last p events requested are
 		to be enabled where p is how many it supports (which may vary
 		depending on the exact set requested. So if you want to be
 		sure you have set what you think you have, check the contents of
 		these attributes after everything is configured. Drivers may
 		have to buffer any parameters so that they are consistent when
 		a given event type is enabled at a future point (and not those for
 		whatever event was previously enabled).

 What:		/sys/.../iio:deviceX/events/in_accel_x_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_x_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_x_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_y_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_anglvel_z_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_x_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_x_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_y_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_y_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_magn_z_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_magn_z_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_magnetic_tilt_comp_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_rot_from_north_true_tilt_comp_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_voltageY_roc_falling_en
 What:		/sys/.../iio:deviceX/events/in_tempY_roc_rising_en
 What:		/sys/.../iio:deviceX/events/in_tempY_roc_falling_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Event generated when channel passes a threshold on the rate of
 		change (1st differential) in the specified (_rising|_falling)
 		direction. If the direction is not specified, then either the
 		device will report an event which ever direction a single
 		threshold value is passed in (e.g.
 		<type>[Y][_name]_<raw|input>_roc_value) or
 		<type>[Y][_name]_<raw|input>_roc_rising_value and
 		<type>[Y][_name]_<raw|input>_roc_falling_value may take
 		different values, but the device can only enable both rate of
 		change thresholds or neither.
 		Note the driver will assume the last p events requested are
 		to be enabled where p is however many it supports (which may
 		vary depending on the exact set requested. So if you want to be
 		sure you have set what you think you have, check the contents of
 		these attributes after everything is configured. Drivers may
 		have to buffer any parameters so that they are consistent when
 		a given event type is enabled a future point (and not those for
 		whatever event was previously enabled).

 What:		/sys/.../events/in_accel_thresh_rising_value
 What:		/sys/.../events/in_accel_thresh_falling_value
 What:		/sys/.../events/in_accel_x_raw_thresh_rising_value
 What:		/sys/.../events/in_accel_x_raw_thresh_falling_value
 What:		/sys/.../events/in_accel_y_raw_thresh_rising_value
 What:		/sys/.../events/in_accel_y_raw_thresh_falling_value
 What:		/sys/.../events/in_accel_z_raw_thresh_rising_value
 What:		/sys/.../events/in_accel_z_raw_thresh_falling_value
 What:		/sys/.../events/in_anglvel_x_raw_thresh_rising_value
 What:		/sys/.../events/in_anglvel_x_raw_thresh_falling_value
 What:		/sys/.../events/in_anglvel_y_raw_thresh_rising_value
 What:		/sys/.../events/in_anglvel_y_raw_thresh_falling_value
 What:		/sys/.../events/in_anglvel_z_raw_thresh_rising_value
 What:		/sys/.../events/in_anglvel_z_raw_thresh_falling_value
 What:		/sys/.../events/in_magn_x_raw_thresh_rising_value
 What:		/sys/.../events/in_magn_x_raw_thresh_falling_value
 What:		/sys/.../events/in_magn_y_raw_thresh_rising_value
 What:		/sys/.../events/in_magn_y_raw_thresh_falling_value
 What:		/sys/.../events/in_magn_z_raw_thresh_rising_value
 What:		/sys/.../events/in_magn_z_raw_thresh_falling_value
 What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_rising_value
 What:		/sys/.../events/in_rot_from_north_magnetic_raw_thresh_falling_value
 What:		/sys/.../events/in_rot_from_north_true_raw_thresh_rising_value
 What:		/sys/.../events/in_rot_from_north_true_raw_thresh_falling_value
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_rising_value
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_thresh_falling_value
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_rising_value
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_thresh_falling_value
 What:		/sys/.../events/in_voltageY_supply_raw_thresh_rising_value
 What:		/sys/.../events/in_voltageY_supply_raw_thresh_falling_value
 What:		/sys/.../events/in_voltageY_raw_thresh_rising_value
 What:		/sys/.../events/in_voltageY_raw_thresh_falling_value
 What:		/sys/.../events/in_tempY_raw_thresh_rising_value
 What:		/sys/.../events/in_tempY_raw_thresh_falling_value
 What:		/sys/.../events/in_illuminance0_thresh_falling_value
 what:		/sys/.../events/in_illuminance0_thresh_rising_value
 what:		/sys/.../events/in_proximity0_thresh_falling_value
 what:		/sys/.../events/in_proximity0_thresh_rising_value
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the value of threshold that the device is comparing
 		against for the events enabled by
 		<type>Y[_name]_thresh[_rising|falling]_en.
 		If separate attributes exist for the two directions, but
 		direction is not specified for this attribute, then a single
 		threshold value applies to both directions.
 		The raw or input element of the name indicates whether the
 		value is in raw device units or in processed units (as _raw
 		and _input do on sysfs direct channel read attributes).

 What:		/sys/.../events/in_accel_scale
 What:		/sys/.../events/in_accel_peak_scale
 What:		/sys/.../events/in_anglvel_scale
 What:		/sys/.../events/in_magn_scale
 What:		/sys/.../events/in_rot_from_north_magnetic_scale
 What:		/sys/.../events/in_rot_from_north_true_scale
 What:		/sys/.../events/in_voltage_scale
 What:		/sys/.../events/in_voltage_supply_scale
 What:		/sys/.../events/in_temp_scale
 What:		/sys/.../events/in_illuminance_scale
 What:		/sys/.../events/in_proximity_scale
 KernelVersion:	3.21
 Contact:	linux-iio@vger.kernel.org
 Description:
                 Specifies the conversion factor from the standard units
                 to device specific units used to set the event trigger
                 threshold.

 What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
 What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
 What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
 What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
 What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
 What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
 What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
 What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
 What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
 What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
 What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
 What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
 What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
 What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
 What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
 What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
 What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
 What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
 What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
 What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
 What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
 What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
 What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
 What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
 What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
 What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
 What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_thresh_either_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_thresh_rising_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_thresh_falling_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_thresh_either_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_hysteresis
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_either_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_hysteresis
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_either_hysteresis
 What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
 What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
 What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
 What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
 What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
 What:		/sys/.../events/in_tempY_thresh_either_hysteresis
 What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
 what:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
 what:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
 what:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
 what:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
 what:		/sys/.../events/in_proximity0_thresh_either_hysteresis
 KernelVersion:	3.13
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the hysteresis of threshold that the device is comparing
 		against for the events enabled by
 		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
 		If separate attributes exist for the two directions, but
 		direction is not specified for this attribute, then a single
 		hysteresis value applies to both directions.
 		For falling events the hysteresis is added to the _value attribute for
 		this event to get the upper threshold for when the event goes back to
 		normal, for rising events the hysteresis is subtracted from the _value
 		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
 		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
 		will get activated once in_voltage0_raw goes above 1200 and will become
 		deactivated again once the value falls below 1150.

 What:		/sys/.../events/in_accel_x_raw_roc_rising_value
 What:		/sys/.../events/in_accel_x_raw_roc_falling_value
 What:		/sys/.../events/in_accel_y_raw_roc_rising_value
 What:		/sys/.../events/in_accel_y_raw_roc_falling_value
 What:		/sys/.../events/in_accel_z_raw_roc_rising_value
 What:		/sys/.../events/in_accel_z_raw_roc_falling_value
 What:		/sys/.../events/in_anglvel_x_raw_roc_rising_value
 What:		/sys/.../events/in_anglvel_x_raw_roc_falling_value
 What:		/sys/.../events/in_anglvel_y_raw_roc_rising_value
 What:		/sys/.../events/in_anglvel_y_raw_roc_falling_value
 What:		/sys/.../events/in_anglvel_z_raw_roc_rising_value
 What:		/sys/.../events/in_anglvel_z_raw_roc_falling_value
 What:		/sys/.../events/in_magn_x_raw_roc_rising_value
 What:		/sys/.../events/in_magn_x_raw_roc_falling_value
 What:		/sys/.../events/in_magn_y_raw_roc_rising_value
 What:		/sys/.../events/in_magn_y_raw_roc_falling_value
 What:		/sys/.../events/in_magn_z_raw_roc_rising_value
 What:		/sys/.../events/in_magn_z_raw_roc_falling_value
 What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_rising_value
 What:		/sys/.../events/in_rot_from_north_magnetic_raw_roc_falling_value
 What:		/sys/.../events/in_rot_from_north_true_raw_roc_rising_value
 What:		/sys/.../events/in_rot_from_north_true_raw_roc_falling_value
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_rising_value
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_raw_roc_falling_value
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_rising_value
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_raw_roc_falling_value
 What:		/sys/.../events/in_voltageY_supply_raw_roc_rising_value
 What:		/sys/.../events/in_voltageY_supply_raw_roc_falling_value
 What:		/sys/.../events/in_voltageY_raw_roc_rising_value
 What:		/sys/.../events/in_voltageY_raw_roc_falling_value
 What:		/sys/.../events/in_tempY_raw_roc_rising_value
 What:		/sys/.../events/in_tempY_raw_roc_falling_value
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the value of rate of change threshold that the
 		device is comparing against for the events enabled by
 		<type>[Y][_name]_roc[_rising|falling]_en.
 		If separate attributes exist for the two directions,
 		but direction is not specified for this attribute,
 		then a single threshold value applies to both directions.
 		The raw or input element of the name indicates whether the
 		value is in raw device units or in processed units (as _raw
 		and _input do on sysfs direct channel read attributes).

 What:		/sys/.../events/in_accel_x_thresh_rising_period
 What:		/sys/.../events/in_accel_x_thresh_falling_period
 What:		/sys/.../events/in_accel_x_roc_rising_period
 What:		/sys/.../events/in_accel_x_roc_falling_period
 What:		/sys/.../events/in_accel_y_thresh_rising_period
 What:		/sys/.../events/in_accel_y_thresh_falling_period
 What:		/sys/.../events/in_accel_y_roc_rising_period
 What:		/sys/.../events/in_accel_y_roc_falling_period
 What:		/sys/.../events/in_accel_z_thresh_rising_period
 What:		/sys/.../events/in_accel_z_thresh_falling_period
 What:		/sys/.../events/in_accel_z_roc_rising_period
 What:		/sys/.../events/in_accel_z_roc_falling_period
 What:		/sys/.../events/in_anglvel_x_thresh_rising_period
 What:		/sys/.../events/in_anglvel_x_thresh_falling_period
 What:		/sys/.../events/in_anglvel_x_roc_rising_period
 What:		/sys/.../events/in_anglvel_x_roc_falling_period
 What:		/sys/.../events/in_anglvel_y_thresh_rising_period
 What:		/sys/.../events/in_anglvel_y_thresh_falling_period
 What:		/sys/.../events/in_anglvel_y_roc_rising_period
 What:		/sys/.../events/in_anglvel_y_roc_falling_period
 What:		/sys/.../events/in_anglvel_z_thresh_rising_period
 What:		/sys/.../events/in_anglvel_z_thresh_falling_period
 What:		/sys/.../events/in_anglvel_z_roc_rising_period
 What:		/sys/.../events/in_anglvel_z_roc_falling_period
 What:		/sys/.../events/in_magn_x_thresh_rising_period
 What:		/sys/.../events/in_magn_x_thresh_falling_period
 What:		/sys/.../events/in_magn_x_roc_rising_period
 What:		/sys/.../events/in_magn_x_roc_falling_period
 What:		/sys/.../events/in_magn_y_thresh_rising_period
 What:		/sys/.../events/in_magn_y_thresh_falling_period
 What:		/sys/.../events/in_magn_y_roc_rising_period
 What:		/sys/.../events/in_magn_y_roc_falling_period
 What:		/sys/.../events/in_magn_z_thresh_rising_period
 What:		/sys/.../events/in_magn_z_thresh_falling_period
 What:		/sys/.../events/in_magn_z_roc_rising_period
 What:		/sys/.../events/in_magn_z_roc_falling_period
 What:		/sys/.../events/in_rot_from_north_magnetic_thresh_rising_period
 What:		/sys/.../events/in_rot_from_north_magnetic_thresh_falling_period
 What:		/sys/.../events/in_rot_from_north_magnetic_roc_rising_period
 What:		/sys/.../events/in_rot_from_north_magnetic_roc_falling_period
 What:		/sys/.../events/in_rot_from_north_true_thresh_rising_period
 What:		/sys/.../events/in_rot_from_north_true_thresh_falling_period
 What:		/sys/.../events/in_rot_from_north_true_roc_rising_period
 What:		/sys/.../events/in_rot_from_north_true_roc_falling_period
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_rising_period
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_thresh_falling_period
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_rising_period
 What:		/sys/.../events/in_rot_from_north_magnetic_tilt_comp_roc_falling_period
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_rising_period
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_thresh_falling_period
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_rising_period
 What:		/sys/.../events/in_rot_from_north_true_tilt_comp_roc_falling_period
 What:		/sys/.../events/in_voltageY_supply_thresh_rising_period
 What:		/sys/.../events/in_voltageY_supply_thresh_falling_period
 What:		/sys/.../events/in_voltageY_supply_roc_rising_period
 What:		/sys/.../events/in_voltageY_supply_roc_falling_period
 What:		/sys/.../events/in_voltageY_thresh_rising_period
 What:		/sys/.../events/in_voltageY_thresh_falling_period
 What:		/sys/.../events/in_voltageY_roc_rising_period
 What:		/sys/.../events/in_voltageY_roc_falling_period
 What:		/sys/.../events/in_tempY_thresh_rising_period
 What:		/sys/.../events/in_tempY_thresh_falling_period
 What:		/sys/.../events/in_tempY_roc_rising_period
 What:		/sys/.../events/in_tempY_roc_falling_period
 What:		/sys/.../events/in_accel_x&y&z_mag_falling_period
 What:		/sys/.../events/in_intensity0_thresh_period
 What:		/sys/.../events/in_proximity0_thresh_period
 What:		/sys/.../events/in_activity_still_thresh_rising_period
 What:		/sys/.../events/in_activity_still_thresh_falling_period
 What:		/sys/.../events/in_activity_walking_thresh_rising_period
 What:		/sys/.../events/in_activity_walking_thresh_falling_period
 What:		/sys/.../events/in_activity_jogging_thresh_rising_period
 What:		/sys/.../events/in_activity_jogging_thresh_falling_period
 What:		/sys/.../events/in_activity_running_thresh_rising_period
 What:		/sys/.../events/in_activity_running_thresh_falling_period
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Period of time (in seconds) for which the condition must be
 		met before an event is generated. If direction is not
 		specified then this period applies to both directions.

 What:		/sys/.../events/in_accel_thresh_rising_low_pass_filter_3db
 What:		/sys/.../events/in_anglvel_thresh_rising_low_pass_filter_3db
 What:		/sys/.../events/in_magn_thresh_rising_low_pass_filter_3db
 KernelVersion:	4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If a low pass filter can be applied to the event generation
 		this property gives its 3db frequency in Hz.
 		A value of zero disables the filter.

 What:		/sys/.../events/in_accel_thresh_rising_high_pass_filter_3db
 What:		/sys/.../events/in_anglvel_thresh_rising_high_pass_filter_3db
 What:		/sys/.../events/in_magn_thresh_rising_high_pass_filter_3db
 KernelVersion:	4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If a high pass filter can be applied to the event generation
 		this property gives its 3db frequency in Hz.
 		A value of zero disables the filter.

 What:		/sys/.../events/in_activity_still_thresh_rising_en
 What:		/sys/.../events/in_activity_still_thresh_falling_en
 What:		/sys/.../events/in_activity_walking_thresh_rising_en
 What:		/sys/.../events/in_activity_walking_thresh_falling_en
 What:		/sys/.../events/in_activity_jogging_thresh_rising_en
 What:		/sys/.../events/in_activity_jogging_thresh_falling_en
 What:		/sys/.../events/in_activity_running_thresh_rising_en
 What:		/sys/.../events/in_activity_running_thresh_falling_en
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Enables or disables activitity events. Depending on direction
 		an event is generated when sensor ENTERS or LEAVES a given state.

 What:		/sys/.../events/in_activity_still_thresh_rising_value
 What:		/sys/.../events/in_activity_still_thresh_falling_value
 What:		/sys/.../events/in_activity_walking_thresh_rising_value
 What:		/sys/.../events/in_activity_walking_thresh_falling_value
 What:		/sys/.../events/in_activity_jogging_thresh_rising_value
 What:		/sys/.../events/in_activity_jogging_thresh_falling_value
 What:		/sys/.../events/in_activity_running_thresh_rising_value
 What:		/sys/.../events/in_activity_running_thresh_falling_value
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Confidence value (in units as percentage) to be used
 		for deciding when an event should be generated. E.g for
 		running: If the confidence value reported by the sensor
 		is greater than in_activity_running_thresh_rising_value
 		then the sensor ENTERS running state. Conversely, if the
 		confidence value reported by the sensor is lower than
 		in_activity_running_thresh_falling_value then the sensor
 		is LEAVING running state.

 What:		/sys/.../iio:deviceX/events/in_accel_mag_en
 What:		/sys/.../iio:deviceX/events/in_accel_mag_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_mag_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_x_mag_en
 What:		/sys/.../iio:deviceX/events/in_accel_x_mag_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_x_mag_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_mag_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_mag_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_y_mag_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_mag_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_mag_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_z_mag_falling_en
 What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_rising_en
 What:		/sys/.../iio:deviceX/events/in_accel_x&y&z_mag_falling_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Similar to in_accel_x_thresh[_rising|_falling]_en, but here the
 		magnitude of the channel is compared to the threshold, not its
 		signed value.

 What:		/sys/.../events/in_accel_raw_mag_value
 What:		/sys/.../events/in_accel_x_raw_mag_rising_value
 What:		/sys/.../events/in_accel_y_raw_mag_rising_value
 What:		/sys/.../events/in_accel_z_raw_mag_rising_value
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		The value to which the magnitude of the channel is compared. If
 		number or direction is not specified, applies to all channels of
 		this type.

 What:		/sys/.../events/in_steps_change_en
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Event generated when channel passes a threshold on the absolute
 		change in value. E.g. for steps: a step change event is
 		generated each time the user takes N steps, where N is set using
 		in_steps_change_value.

 What:		/sys/.../events/in_steps_change_value
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the value of change threshold that the
 		device is comparing against for the events enabled by
 		<type>[Y][_name]_roc[_rising|falling|]_en. E.g. for steps:
 		if set to 3, a step change event will be generated every 3
 		steps.

 What:		/sys/bus/iio/devices/iio:deviceX/trigger/current_trigger
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		The name of the trigger source being used, as per string given
 		in /sys/class/iio/triggerY/name.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/length
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of scans contained by the buffer.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/enable
 KernelVersion:	2.6.35
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Actually start the buffer capture up.  Will start trigger
 		if first device and appropriate.

 What:		/sys/bus/iio/devices/iio:deviceX/scan_elements
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Directory containing interfaces for elements that will be
 		captured for a single triggered sample set in the buffer.

 What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_en
 What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_en
 What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_en
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_en
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_en
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
 What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_en
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_en
 What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_en
 What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_en
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_en
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_en
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
 What:		/sys/.../iio:deviceX/scan_elements/in_proximity_en
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Scan element control for triggered data capture.

 What:		/sys/.../iio:deviceX/scan_elements/in_accel_type
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_type
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_type
 What:		/sys/.../iio:deviceX/scan_elements/in_incli_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_type
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_type
 What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_type
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_type
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_type
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
 What:		/sys/.../iio:deviceX/scan_elements/in_proximity_type
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Description of the scan element data storage within the buffer
 		and hence the form in which it is read from user-space.
 		Form is [be|le]:[s|u]bits/storagebits[>>shift].
 		be or le specifies big or little endian. s or u specifies if
 		signed (2's complement) or unsigned. bits is the number of bits
 		of data and storagebits is the space (after padding) that it
 		occupies in the buffer. shift if specified, is the shift that
 		needs to be applied prior to masking out unused bits. Some
 		devices put their data in the middle of the transferred elements
 		with additional information on both sides.  Note that some
 		devices will have additional information in the unused bits
 		so to get a clean value, the bits value must be used to mask
 		the buffer output value appropriately.  The storagebits value
 		also specifies the data alignment.  So s48/64>>2 will be a
 		signed 48 bit integer stored in a 64 bit location aligned to
 		a 64 bit boundary. To obtain the clean value, shift right 2
 		and apply a mask to zero the top 16 bits of the result.
 		For other storage combinations this attribute will be extended
 		appropriately.

 What:		/sys/.../iio:deviceX/scan_elements/in_accel_type_available
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		If the type parameter can take one of a small set of values,
 		this attribute lists them.

 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_index
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
 What:		/sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_i_index
 What:		/sys/.../iio:deviceX/scan_elements/in_voltage_q_index
 What:		/sys/.../iio:deviceX/scan_elements/in_accel_x_index
 What:		/sys/.../iio:deviceX/scan_elements/in_accel_y_index
 What:		/sys/.../iio:deviceX/scan_elements/in_accel_z_index
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
 What:		/sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_x_index
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_y_index
 What:		/sys/.../iio:deviceX/scan_elements/in_magn_z_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
 What:		/sys/.../iio:deviceX/scan_elements/in_incli_x_index
 What:		/sys/.../iio:deviceX/scan_elements/in_incli_y_index
 What:		/sys/.../iio:deviceX/scan_elements/in_timestamp_index
 What:		/sys/.../iio:deviceX/scan_elements/in_pressureY_index
 What:		/sys/.../iio:deviceX/scan_elements/in_pressure_index
 What:		/sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
 What:		/sys/.../iio:deviceX/scan_elements/in_proximity_index
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A single positive integer specifying the position of this
 		scan element in the buffer. Note these are not dependent on
 		what is enabled and may not be contiguous. Thus for user-space
 		to establish the full layout these must be used in conjunction
 		with all _en attributes to establish which channels are present,
 		and the relevant _type attributes to establish the data storage
 		format.

 What:		/sys/.../iio:deviceX/in_activity_still_input
 What:		/sys/.../iio:deviceX/in_activity_walking_input
 What:		/sys/.../iio:deviceX/in_activity_jogging_input
 What:		/sys/.../iio:deviceX/in_activity_running_input
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the confidence for an activity
 		expressed in units as percentage.

 What:		/sys/.../iio:deviceX/in_anglvel_z_quadrature_correction_raw
 KernelVersion:	2.6.38
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the amount of quadrature error
 		present in the device at a given time.

 What:		/sys/.../iio:deviceX/in_accelX_power_mode
 KernelVersion:	3.11
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the chip power mode.
 		low_noise: reduce noise level from ADC,
 		low_power: enable low current consumption.
 		For a list of available output power modes read
 		in_accel_power_mode_available.

 What:		/sys/.../iio:deviceX/in_energy_input
 What:		/sys/.../iio:deviceX/in_energy_raw
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the energy value reported by the
 		device (e.g.: human activity sensors report energy burnt by the
 		user). Units after application of scale are Joules.

 What:		/sys/.../iio:deviceX/in_distance_input
 What:		/sys/.../iio:deviceX/in_distance_raw
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the measured distance to an object
 		or the distance covered by the user since the last reboot while
 		activated. Units after application of scale are meters.

 What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
 KernelVersion:	3.4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Writing '1' stores the current device configuration into
 		on-chip EEPROM. After power-up or chip reset the device will
 		automatically load the saved configuration.

 What:		/sys/.../iio:deviceX/in_proximity_raw
 What:		/sys/.../iio:deviceX/in_proximity_input
 What:		/sys/.../iio:deviceX/in_proximityY_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Proximity measurement indicating that some
 		object is near the sensor, usually by observing
 		reflectivity of infrared or ultrasound emitted.
 		Often these sensors are unit less and as such conversion
 		to SI units is not possible. Higher proximity measurements
 		indicate closer objects, and vice versa. Units after
 		application of scale and offset are meters.

 What:		/sys/.../iio:deviceX/in_illuminance_input
 What:		/sys/.../iio:deviceX/in_illuminance_raw
 What:		/sys/.../iio:deviceX/in_illuminanceY_input
 What:		/sys/.../iio:deviceX/in_illuminanceY_raw
 What:		/sys/.../iio:deviceX/in_illuminanceY_mean_raw
 What:		/sys/.../iio:deviceX/in_illuminance_ir_raw
 What:		/sys/.../iio:deviceX/in_illuminance_clear_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Illuminance measurement, units after application of scale
 		and offset are lux.

 What:		/sys/.../iio:deviceX/in_intensityY_raw
 What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
 What:		/sys/.../iio:deviceX/in_intensityY_both_raw
 What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
 What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Unit-less light intensity. Modifiers both and ir indicate
 		that measurements contain visible and infrared light
 		components or just infrared light, respectively. Modifier
 		uv indicates that measurements contain ultraviolet light
 		components. Modifier duv indicates that measurements
 		contain deep ultraviolet light components.

 What:		/sys/.../iio:deviceX/in_uvindex_input
 KernelVersion:	4.6
 Contact:	linux-iio@vger.kernel.org
 Description:
 		UV light intensity index measuring the human skin's response to
 		different wavelength of sunlight weighted according to the
 		standardised CIE Erythemal Action Spectrum. UV index values range
 		from 0 (low) to >=11 (extreme).

 What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
 What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
 What:		/sys/.../iio:deviceX/in_illuminance_integration_time
 KernelVersion:	3.12
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to get/set the integration time in
 		seconds.

 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_integration_time
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of seconds in which to compute speed.

 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_quaternion_raw
 KernelVersion:	3.15
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw value of quaternion components using a format
 		x y z w. Here x, y, and z component represents the axis about
 		which a rotation will occur and w component represents the
 		amount of rotation.

 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_tilt_comp_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_magnetic_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_raw
 KernelVersion:	3.15
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw value of rotation from true/magnetic north measured with
 		or without compensation from tilt sensors.

 What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_i_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_currentX_q_raw
 KernelVersion:	3.18
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw current measurement from channel X. Units are in milliamps
 		after application of scale and offset. If no offset or scale is
 		present, output should be considered as processed with the
 		unit in milliamps.

 		Channels with 'i' and 'q' modifiers always exist in pairs and both
 		channels refer to the same signal. The 'i' channel contains the in-phase
 		component of the signal while the 'q' channel contains the quadrature
 		component.

 What:		/sys/.../iio:deviceX/in_energy_en
 What:		/sys/.../iio:deviceX/in_distance_en
 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_en
 What:		/sys/.../iio:deviceX/in_steps_en
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Activates a device feature that runs in firmware/hardware.
 		E.g. for steps: the pedometer saves power while not used;
 		when activated, it will count the steps taken by the user in
 		firmware and export them through in_steps_input.

 What:		/sys/.../iio:deviceX/in_steps_input
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the number of steps taken by the user
 		since the last reboot while activated.

 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_input
 What:		/sys/.../iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_raw
 KernelVersion:	3.19
 Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute is used to read the current speed value of the
 		user (which is the norm or magnitude of the velocity vector).
 		Units after application of scale are m/s.

 What:		/sys/.../iio:deviceX/in_steps_debounce_count
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies the number of steps that must occur within
 		in_steps_filter_debounce_time for the pedometer to decide the
 		consumer is making steps.

 What:		/sys/.../iio:deviceX/in_steps_debounce_time
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Specifies number of seconds in which we compute the steps
 		that occur in order to decide if the consumer is making steps.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/watermark
 KernelVersion:	4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A single positive integer specifying the maximum number of scan
 		elements to wait for.
 		Poll will block until the watermark is reached.
 		Blocking read will wait until the minimum between the requested
 		read amount or the low water mark is available.
 		Non-blocking read will retrieve the available samples from the
 		buffer even if there are less samples then watermark level. This
 		allows the application to block on poll with a timeout and read
 		the available samples after the timeout expires and thus have a
 		maximum delay guarantee.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/data_available
 KernelVersion: 4.16
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A read-only value indicating the bytes of data available in the
 		buffer. In the case of an output buffer, this indicates the
 		amount of empty space available to write data to. In the case of
 		an input buffer, this indicates the amount of data available for
 		reading.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled
 KernelVersion: 4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A read-only boolean value that indicates if the hardware fifo is
 		currently enabled or disabled. If the device does not have a
 		hardware fifo this entry is not present.
 		The hardware fifo is enabled when the buffer is enabled if the
 		current hardware fifo watermark level is set and other current
 		device settings allows it (e.g. if a trigger is set that samples
 		data differently that the hardware fifo does then hardware fifo
 		will not enabled).
 		If the hardware fifo is enabled and the level of the hardware
 		fifo reaches the hardware fifo watermark level the device will
 		flush its hardware fifo to the device buffer. Doing a non
 		blocking read on the device when no samples are present in the
 		device buffer will also force a flush.
 		When the hardware fifo is enabled there is no need to use a
 		trigger to use buffer mode since the watermark settings
 		guarantees that the hardware fifo is flushed to the device
 		buffer.

 What:		/sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
 KernelVersion:	4.12
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A read/write property to provide capability to delay reporting of
 		samples till a timeout is reached. This allows host processors to
 		sleep, while the sensor is storing samples in its internal fifo.
 		The maximum timeout in seconds can be specified by setting
 		hwfifo_timeout.The current delay can be read by reading
 		hwfifo_timeout. A value of 0 means that there is no timeout.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
 KernelVersion: 4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Read-only entry that contains a single integer specifying the
 		current watermark level for the hardware fifo. If the device
 		does not have a hardware fifo this entry is not present.
 		The watermark level for the hardware fifo is set by the driver
 		based on the value set by the user in buffer/watermark but
 		taking into account hardware limitations (e.g. most hardware
 		buffers are limited to 32-64 samples, some hardware buffers
 		watermarks are fixed or have minimum levels).  A value of 0
 		means that the hardware watermark is unset.

 What:		/sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_min
 KernelVersion: 4.2
 Contact:       linux-iio@vger.kernel.org
 Description:
 		A single positive integer specifying the minimum watermark level
 		for the hardware fifo of this device. If the device does not
 		have a hardware fifo this entry is not present.
 		If the user sets buffer/watermark to a value less than this one,
 		then the hardware watermark will remain unset.

 What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_max
 KernelVersion: 4.2
 Contact:       linux-iio@vger.kernel.org
 Description:
 		A single positive integer specifying the maximum watermark level
 		for the hardware fifo of this device. If the device does not
 		have a hardware fifo this entry is not present.
 		If the user sets buffer/watermark to a value greater than this
 		one, then the hardware watermark will be capped at this value.

 What:	       /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark_available
 KernelVersion: 4.2
 Contact:       linux-iio@vger.kernel.org
 Description:
 		A list of positive integers specifying the available watermark
 		levels for the hardware fifo. This entry is optional and if it
 		is not present it means that all the values between
 		hwfifo_watermark_min and hwfifo_watermark_max are supported.
 		If the user sets buffer/watermark to a value greater than
 		hwfifo_watermak_min but not equal to any of the values in this
 		list, the driver will chose an appropriate value for the
 		hardware fifo watermark level.

 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_calibemissivity
 What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_calibemissivity
 What:		/sys/bus/iio/devices/iio:deviceX/in_temp_object_calibemissivity
 What:		/sys/bus/iio/devices/iio:deviceX/in_tempX_object_calibemissivity
 KernelVersion:	4.1
 Contact:	linux-iio@vger.kernel.org
 Description:
 		The emissivity ratio of the surface in the field of view of the
 		contactless temperature sensor.  Emissivity varies from 0 to 1,
 		with 1 being the emissivity of a black body.

 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_x_oversampling_ratio
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_y_oversampling_ratio
 What:		/sys/bus/iio/devices/iio:deviceX/in_magn_z_oversampling_ratio
 KernelVersion:	4.2
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Hardware applied number of measurements for acquiring one
 		data point. The HW will do <type>[_name]_oversampling_ratio
 		measurements and return the average value as output data. Each
 		value resulted from <type>[_name]_oversampling_ratio measurements
 		is considered as one sample for <type>[_name]_sampling_frequency.

 What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
 KernelVersion:	4.3
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no offset etc.) percentage reading of a substance.

 What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
 What:		/sys/bus/iio/devices/iio:deviceX/out_resistance_raw
 What:		/sys/bus/iio/devices/iio:deviceX/out_resistanceX_raw
 KernelVersion:	4.3
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no offset etc.) resistance reading that can be processed
 		into an ohm value.

 What:		/sys/bus/iio/devices/iio:deviceX/heater_enable
 KernelVersion:	4.1.0
 Contact:	linux-iio@vger.kernel.org
 Description:
 		'1' (enable) or '0' (disable) specifying the enable
 		of heater function. Same reading values apply
 		This ABI is especially applicable for humidity sensors
 		to heatup the device and get rid of any condensation
 		in some humidity environment

 What:		/sys/bus/iio/devices/iio:deviceX/in_ph_raw
 KernelVersion:	4.5
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no offset etc.) pH reading of a substance as a negative
 		base-10 logarithm of hydrodium ions in a litre of water.

 What:           /sys/bus/iio/devices/iio:deviceX/mount_matrix
 What:           /sys/bus/iio/devices/iio:deviceX/in_mount_matrix
 What:           /sys/bus/iio/devices/iio:deviceX/out_mount_matrix
 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix
 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix
 KernelVersion:  4.6
 Contact:        linux-iio@vger.kernel.org
 Description:
 		Mounting matrix for IIO sensors. This is a rotation matrix which
 		informs userspace about sensor chip's placement relative to the
 		main hardware it is mounted on.
 		Main hardware placement is defined according to the local
 		reference frame related to the physical quantity the sensor
 		measures.
 		Given that the rotation matrix is defined in a board specific
 		way (platform data and / or device-tree), the main hardware
 		reference frame definition is left to the implementor's choice
 		(see below for a magnetometer example).
 		Applications should apply this rotation matrix to samples so
 		that when main hardware reference frame is aligned onto local
 		reference frame, then sensor chip reference frame is also
 		perfectly aligned with it.
 		Matrix is a 3x3 unitary matrix and typically looks like
 		[0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix
 		[1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware
 		are perfectly aligned with each other.

 		For example, a mounting matrix for a magnetometer sensor informs
 		userspace about sensor chip's ORIENTATION relative to the main
 		hardware.
 		More specifically, main hardware orientation is defined with
 		respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where :
 		* Y is in the ground plane and positive towards magnetic North ;
 		* X is in the ground plane, perpendicular to the North axis and
 		  positive towards the East ;
 		* Z is perpendicular to the ground plane and positive upwards.

 		An implementor might consider that for a hand-held device, a
 		'natural' orientation would be 'front facing camera at the top'.
 		The main hardware reference frame could then be described as :
 		* Y is in the plane of the screen and is positive towards the
 		  top of the screen ;
 		* X is in the plane of the screen, perpendicular to Y axis, and
 		  positive towards the right hand side of the screen ;
 		* Z is perpendicular to the screen plane and positive out of the
 		  screen.
 		Another example for a quadrotor UAV might be :
 		* Y is in the plane of the propellers and positive towards the
 		  front-view camera;
 		* X is in the plane of the propellers, perpendicular to Y axis,
 		  and positive towards the starboard side of the UAV ;
 		* Z is perpendicular to propellers plane and positive upwards.

 What:		/sys/bus/iio/devices/iio:deviceX/in_electricalconductivity_raw
 KernelVersion:	4.8
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled no offset etc.) electric conductivity reading that
 		can be processed to siemens per meter.

 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_raw
 KernelVersion:	4.10
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw counter device counts from channel Y. For quadrature
 		counters, multiplication by an available [Y]_scale results in
 		the counts of a single quadrature signal phase from channel Y.

 What:		/sys/bus/iio/devices/iio:deviceX/in_indexY_raw
 KernelVersion:	4.10
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw counter device index value from channel Y. This attribute
 		provides an absolute positional reference (e.g. a pulse once per
 		revolution) which may be used to home positional systems as
 		required.

 What:		/sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
 KernelVersion:	4.12
 Contact:	linux-iio@vger.kernel.org
 Description:
 		A list of possible counting directions which are:
 		- "up"	: counter device is increasing.
 		- "down": counter device is decreasing.

 What:		/sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
 KernelVersion:	4.12
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw counter device counters direction for channel Y.

 What:		/sys/bus/iio/devices/iio:deviceX/in_phaseY_raw
 KernelVersion:	4.18
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled) phase difference reading from channel Y
 		that can be processed to radians.