mirror of https://gitee.com/openkylin/linux.git
staging: iio: documentation rewrite and cleanup of sysfs documetation
Change to capital syntax for documetation e.g. 'inX-inY_raw' Use multiple 'What:' entries rather than wild cards or options so as to make the documentation clearer and easier to search. Some trivial spelling fixes. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
parent
fe34604844
commit
f386caa3cd
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@ -1,11 +1,12 @@
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What: /sys/bus/iio/devices/device[n]
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What: /sys/bus/iio/devices/deviceX
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Hardware chip or device accessed by on communication port.
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Corresponds to a grouping of sensor channels.
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Corresponds to a grouping of sensor channels. X is the IIO
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index of the device.
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What: /sys/bus/iio/devices/trigger[n]
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What: /sys/bus/iio/devices/triggerX
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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@ -13,25 +14,26 @@ Description:
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May be provided by a device driver that also has an IIO device
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based on hardware generated events (e.g. data ready) or
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provided by a separate driver for other hardware (e.g.
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periodic timer, gpio or high resolution timer).
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periodic timer, GPIO or high resolution timer).
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Contains trigger type specific elements. These do not
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generalize well and hence are not documented in this file.
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X is the IIO index of the trigger.
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What: /sys/bus/iio/devices/device[n]:buffer
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What: /sys/bus/iio/devices/deviceX:buffer
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Link to /sys/class/iio/device[n]/device[n]:buffer. n indicates
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Link to /sys/class/iio/deviceX/deviceX:buffer. X indicates
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the device with which this buffer buffer is associated.
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What: /sys/.../device[n]/name
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What: /sys/bus/iio/devices/deviceX/name
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Description of the physical chip / device. Typically a part
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number.
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Description of the physical chip / device for device X.
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Typically a part number.
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What: /sys/.../device[n]/sampling_frequency
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What: /sys/bus/iio/devices/deviceX/sampling_frequency
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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@ -44,90 +46,49 @@ Description:
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relevant directories. If it effects all of the above
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then it is to be found in the base device directory as here.
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What: /sys/.../device[n]/sampling_frequency_available
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What: /sys/bus/iio/devices/deviceX/sampling_frequency_available
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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When the internal sampling clock can only take a small
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discrete set of values, this file lists those availale.
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discrete set of values, this file lists those available.
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What: /sys/.../device[n]/in[m][_name]_raw
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What: /sys/bus/iio/devices/deviceX/inY_raw
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What: /sys/bus/iio/devices/deviceX/inY_supply_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw (unscaled no bias removal etc) voltage measurement from
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channel m. name is used in special cases where this does
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not correspond to externally available input (e.g. supply
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voltage monitoring in which case the file is in_supply_raw).
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If the device supports events on this channel then m must be
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specified (even on named channels) so as to allow the source
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of event codes to be identified.
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channel Y. In special cases where the channel does not
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correspond to externally available input one of the named
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versions may be used. The number must always be specified and
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unique to allow association with event codes.
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What: /sys/.../device[n]/in[m][_name]_offset
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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If known for a device, offset to be added to in[m]_raw prior
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to scaling by in[_name][m]_scale in order to obtain voltage in
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millivolts. Not present if the offset is always 0 or unknown.
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If m is not present, then voltage offset applies to all in
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channels. May be writable if a variable offset is controlled
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by the device. Note that this is different to calibbias which
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is for devices that apply offsets to compensate for variation
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between different instances of the part, typically adjusted by
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using some hardware supported calibration procedure.
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What: /sys/.../device[n]/in[m][_name]_offset_available
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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If a small number of discrete offset values are available, this
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will be a space separated list. If these are independant (but
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options the same) for individual offsets then m should not be
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present.
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What: /sys/.../device[n]/in[m][_name]_offset_[min|max]
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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If a more or less continuous range of voltage offsets are
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supported then these specify the minimum and maximum. If shared
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by all in channels then m is not present.
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What: /sys/.../device[n]/in[m][_name]_calibbias
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Hardware applied calibration offset. (assumed to fix production
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inaccuracies)
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What /sys/.../device[n]/in[m][_name]_calibscale
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Hardware applied calibration scale factor. (assumed to fix
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production inaccuracies)
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What: /sys/.../device[n]/in[m][_name]_scale
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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If known for a device, scale to be applied to volt[m]_raw post
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addition of in[_name][m]_offset in order to obtain the measured
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voltage in millivolts. If shared across all in channels then
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m is not present.
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What: /sys/.../device[n]/in[m]-in[o]_raw
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What: /sys/bus/iio/devices/deviceX/inY-inZ_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw (unscaled) differential voltage measurement equivalent to
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channel m - channel o where these channel numbers apply to the
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channel Y - channel Z where these channel numbers apply to the
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physically equivalent inputs when non differential readings are
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separately available. In differential only parts, then all that
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is required is a consistent labelling.
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is required is a consistent labeling.
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What: /sys/.../device[n]/accel[_x|_y|_z][m]_raw
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What: /sys/bus/iio/devices/deviceX/temp_raw
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What: /sys/bus/iio/devices/deviceX/temp_x_raw
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What: /sys/bus/iio/devices/deviceX/temp_y_raw
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What: /sys/bus/iio/devices/deviceX/temp_z_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw (unscaled no bias removal etc) temperature measurement.
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It an axis is specified it generally means that the temperature
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sensor is associated with one part of a compound device (e.g.
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a gyroscope axis).
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What: /sys/bus/iio/devices/deviceX/accel_x_raw
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What: /sys/bus/iio/devices/deviceX/accel_y_raw
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What: /sys/bus/iio/devices/deviceX/accel_z_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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@ -135,29 +96,32 @@ Description:
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but should match other such assignments on device)
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channel m (not present if only one accelerometer channel at
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this orientation). Has all of the equivalent parameters as per
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in[m]. Units after application of scale and offset are m/s^2.
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inY. Units after application of scale and offset are m/s^2.
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What: /sys/.../device[n]/gyro[_x|_y|_z][m]_raw
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What: /sys/bus/iio/devices/deviceX/gyro_x_raw
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What: /sys/bus/iio/devices/deviceX/gyro_y_raw
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What: /sys/bus/iio/devices/deviceX/gyro_z_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Angular velocity about axis x, y or z (may be arbitrarily
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assigned) channel m (not present if only one gyroscope at
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this orientation).
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Data converted by application of offset then scale to
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assigned) Data converted by application of offset then scale to
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radians per second. Has all the equivalent parameters as
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per in[m].
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per inY.
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What: /sys/.../device[n]/incli[_x|_y|_z][m]_raw
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What: /sys/bus/iio/devices/deviceX/incli_x_raw
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What: /sys/bus/iio/devices/deviceX/incli_y_raw
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What: /sys/bus/iio/devices/deviceX/incli_z_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Inclination raw reading about axis x, y or z (may be arbitarily
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assigned) channel m (not present if only one inclinometer at
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this orientation). Data converted by application of offset
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Inclination raw reading about axis x, y or z (may be
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arbitrarily assigned). Data converted by application of offset
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and scale to Degrees.
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What: /sys/.../device[n]/magn[_x|_y|_z][m]_raw
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What: /sys/bus/iio/devices/deviceX/magn_x_raw
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What: /sys/bus/iio/devices/deviceX/magn_y_raw
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What: /sys/bus/iio/devices/deviceX/magn_z_raw
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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@ -165,37 +129,150 @@ Description:
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assigned) channel m (not present if only one magnetometer
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at this orientation). Data converted by application of
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offset then scale to Gauss. Has all the equivalent modifiers
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as per in[m].
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as per inY.
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What: /sys/.../device[n]/device[n]:event[m]
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What: /sys/bus/iio/devices/deviceX/accel_x_peak_raw
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What: /sys/bus/iio/devices/deviceX/accel_y_peak_raw
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What: /sys/bus/iio/devices/deviceX/accel_z_peak_raw
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KernelVersion: 2.6.36
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Contact: linux-iio@vger.kernel.org
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Description:
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Some devices provide a store of the highest value seen since
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some reset condition. These attributes allow access to this
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and are otherwise the direct equivalent of the
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<type>Y[_name]_raw attributes.
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What: /sys/bus/iio/devices/deviceX/accel_xyz_squared_peak_raw
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KernelVersion: 2.6.36
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Contact: linux-iio@vger.kernel.org
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Description:
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A computed peak value based on the sum squared magnitude of
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the underlying value in the specified directions.
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What: /sys/bus/iio/devices/deviceX/accel_offset
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What: /sys/bus/iio/devices/deviceX/temp_offset
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Configuration of which hardware generated events are passed up to
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userspace. Some of these are a bit complex to generalize so this
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section is a work in progress.
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If known for a device, offset to be added to <type>[Y]_raw prior
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to scaling by <type>[Y]_scale in order to obtain value in the
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<type> units as specified in <type>[y]_raw documentation.
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Not present if the offset is always 0 or unknown. If Y is not
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present, then the offset applies to all in channels of <type>.
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May be writable if a variable offset can be applied on the
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device. Note that this is different to calibbias which
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is for devices (or drivers) that apply offsets to compensate
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for variation between different instances of the part, typically
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adjusted by using some hardware supported calibration procedure.
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What: /sys/.../device[n]:event[m]/dev
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What: /sys/bus/iio/devices/deviceX/inY_scale
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What: /sys/bus/iio/devices/deviceX/inY_supply_scale
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What: /sys/bus/iio/devices/deviceX/in_scale
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What: /sys/bus/iio/devices/deviceX/accel_scale
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What: /sys/bus/iio/devices/deviceX/accel_peak_scale
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What: /sys/bus/iio/devices/deviceX/gyro_scale
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What: /sys/bus/iio/devices/deviceX/magn_scale
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What: /sys/bus/iio/devices/deviceX/magn_x_scale
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What: /sys/bus/iio/devices/deviceX/magn_y_scale
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What: /sys/bus/iio/devices/deviceX/magn_z_scale
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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major:minor character device numbers for the event line.
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If known for a device, scale to be applied to <type>Y[_name]_raw
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post addition of <type>[Y][_name]_offset in order to obtain the
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measured value in <type> units as specified in
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<type>[Y][_name]_raw documentation.. If shared across all in
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channels then Y is not present and the value is called
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<type>[Y][_name]_scale. The peak modifier means this value
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is applied to <type>Y[_name]_peak_raw values.
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Taking accel_x0 as an example
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What: /sys/bus/iio/devices/deviceX/accel_x_calibbias
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What: /sys/bus/iio/devices/deviceX/accel_y_calibbias
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What: /sys/bus/iio/devices/deviceX/accel_z_calibbias
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What: /sys/bus/iio/devices/deviceX/gyro_x_calibbias
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What: /sys/bus/iio/devices/deviceX/gyro_y_calibbias
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What: /sys/bus/iio/devices/deviceX/gyro_z_calibbias
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
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Hardware applied calibration offset. (assumed to fix production
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inaccuracies). If shared across all channels, <type>_calibbias
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is used.
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What: /sys/.../device[n]:event[m]/accel_x0_thresh[_rising|_falling]_en
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What /sys/bus/iio/devices/deviceX/inY_calibscale
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What /sys/bus/iio/devices/deviceX/inY_supply_calibscale
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What /sys/bus/iio/devices/deviceX/in_calibscale
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What /sys/bus/iio/devices/deviceX/accel_x_calibscale
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What /sys/bus/iio/devices/deviceX/accel_y_calibscale
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What /sys/bus/iio/devices/deviceX/accel_z_calibscale
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What /sys/bus/iio/devices/deviceX/gyro_x_calibscale
|
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What /sys/bus/iio/devices/deviceX/gyro_y_calibscale
|
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What /sys/bus/iio/devices/deviceX/gyro_z_calibscale
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KernelVersion: 2.6.35
|
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Contact: linux-iio@vger.kernel.org
|
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Description:
|
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Hardware applied calibration scale factor. (assumed to fix
|
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production inaccuracies). If shared across all channels,
|
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<type>_calibscale is used.
|
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What: /sys/bus/iio/devices/deviceX/accel_scale_available
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KernelVersion: 2.635
|
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Contact: linux-iio@vger.kernel.org
|
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Description:
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If a discrete set of scale values are available, they
|
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are listed in this attribute.
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What: /sys/bus/iio/devices/deviceX/deviceX:eventY
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KernelVersion: 2.6.35
|
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Contact: linux-iio@vger.kernel.org
|
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Description:
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Configuration of which hardware generated events are passed up
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to user-space.
|
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What: /sys/bus/iio/devices/deviceX:event/dev
|
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What: /sys/bus/iio/devices/deviceX:eventY/dev
|
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KernelVersion: 2.6.35
|
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Contact: linux-iio@vger.kernel.org
|
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Description:
|
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major:minor character device numbers for the event line Y of
|
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device X.
|
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What: /sys/.../deviceX:eventY/accel_x_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/accel_x_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/accel_y_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/accel_y_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/accel_z_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/accel_z_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/gyro_x_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/gyro_x_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/gyro_y_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/gyro_y_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/gyro_z_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/gyro_z_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/magn_x_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/magn_x_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/magn_y_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/magn_y_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/magn_z_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/magn_z_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/inZ_supply_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/inZ_supply_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/inZ_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/inZ_thresh_falling_en
|
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What: /sys/.../deviceX:eventY/temp_thresh_rising_en
|
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What: /sys/.../deviceX:eventY/temp_thresh_falling_en
|
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KernelVersion: 2.6.37
|
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Contact: linux-iio@vger.kernel.org
|
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Description:
|
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Event generated when accel_x0 passes a threshold in the specfied
|
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Event generated when channel passes a threshold in the specified
|
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(_rising|_falling) direction. If the direction is not specified,
|
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then either the device will report an event which ever direction
|
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a single threshold value is called in (e.g.
|
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accel_x0_<raw|input>_thresh_value) or
|
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accel_x0_<raw|input>_thresh_rising_value and
|
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accel_x0_<raw|input>_thresh_falling_value may take different
|
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values, but the device can only enable both thresholds or
|
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neither.
|
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<type>[Z][_name]_<raw|input>_thresh_value) or
|
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<type>[Z][_name]_<raw|input>_thresh_rising_value and
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<type>[Z][_name]_<raw|input>_thresh_falling_value may take
|
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different values, but the device can only enable both thresholds
|
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or neither.
|
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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
|
||||
|
|
@ -205,186 +282,338 @@ Description:
|
|||
a given event type is enabled a future point (and not those for
|
||||
whatever event was previously enabled).
|
||||
|
||||
What: /sys/.../accel_x0_<raw|input>_thresh[_rising|_falling]_value
|
||||
What: /sys/.../deviceX:eventY/accel_x_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_x_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_y_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_y_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_z_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_z_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/gyro_x_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/gyro_x_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/gyro_y_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/gyro_y_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/gyro_z_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/gyro_z_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/magn_x_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/magn_x_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/magn_y_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/magn_y_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/magn_z_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/magn_z_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/inZ_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/inZ_roc_falling_en
|
||||
What: /sys/.../deviceX:eventY/temp_roc_rising_en
|
||||
What: /sys/.../deviceX:eventY/temp_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 called in (e.g.
|
||||
<type>[Z][_name]_<raw|input>_roc_value) or
|
||||
<type>[Z][_name]_<raw|input>_roc_rising_value and
|
||||
<type>[Z][_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/.../deviceX:eventY/accel_x_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_x_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/accel_y_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_y_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/accel_z_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_z_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_x_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_x_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_y_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_y_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_z_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_z_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_x_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_x_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_y_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_y_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_z_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_z_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_raw_thresh_rising_value
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/temp_raw_thresh_falling_value
|
||||
What: /sys/.../deviceX:eventY/temp_raw_thresh_falling_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
|
||||
accel_x0_<raw|input>_thresh[_rising|falling]_en.
|
||||
If seperate exist for the two directions, but direction is
|
||||
not specified for this attribute, then a single threshold value
|
||||
applies to both directions.
|
||||
<type>Z[_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/.../accel_x0_thresh[_rising|_falling]_meanperiod
|
||||
What: /sys/.../deviceX:eventY/accel_x_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_x_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/accel_y_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_y_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/accel_z_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/accel_z_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_x_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_x_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_y_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_y_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/gyro_z_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/gyro_z_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_x_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_x_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_y_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_y_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/magn_z_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/magn_z_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_raw_roc_rising_value
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/inZ_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/temp_raw_roc_falling_value
|
||||
What: /sys/.../deviceX:eventY/temp_raw_roc_falling_value
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) over which the raw channel value
|
||||
is averaged before being compared with the threshold set in
|
||||
accel_x0_thresh[_rising|_falling]_meanperiod. If direction is
|
||||
not specified then this mean period applies to both directions.
|
||||
Specifies the value of rate of change threshold that the
|
||||
device is comparing against for the events enabled by
|
||||
<type>[Z][_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/.../accel_x0_thresh[_rising|_falling]_period
|
||||
What: /sys/.../deviceX:eventY/accel_x_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_x_thresh_falling_period
|
||||
hat: /sys/.../deviceX:eventY/accel_x_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_x_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/accel_y_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_y_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/accel_y_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_y_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/accel_z_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_z_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/accel_z_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/accel_z_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_x_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_x_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_x_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_x_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_y_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_y_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_y_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_y_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_z_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_z_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/gyro_z_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/gyro_z_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_x_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_x_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_x_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_x_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_y_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_y_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_y_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_y_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_z_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_z_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/magn_z_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/magn_z_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/inz_supply_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/inZ_supply_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/inZ_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/inZ_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/inZ_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/inZ_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/temp_thresh_rising_period
|
||||
What: /sys/.../deviceX:eventY/temp_thresh_falling_period
|
||||
What: /sys/.../deviceX:eventY/temp_roc_rising_period
|
||||
What: /sys/.../deviceX:eventY/temp_roc_falling_period
|
||||
What: /sys/.../deviceX:eventY/accel_x&y&z_mag_falling_period
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) for which the threshold must be
|
||||
passed before an event is generated. If direction is not
|
||||
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/.../device[n]:event[m]/accel_x0_mag[_rising|_falling]_en
|
||||
What: /sys/.../deviceX:eventY/accel_mag_en
|
||||
What: /sys/.../deviceX:eventY/accel_mag_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_mag_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_x_mag_en
|
||||
What: /sys/.../deviceX:eventY/accel_x_mag_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_x_mag_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_y_mag_en
|
||||
What: /sys/.../deviceX:eventY/accel_y_mag_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_y_mag_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_z_mag_en
|
||||
What: /sys/.../deviceX:eventY/accel_z_mag_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_z_mag_falling_en
|
||||
What: /sys/.../deviceX:eventY/accel_x&y&z_mag_rising_en
|
||||
What: /sys/.../deviceX:eventY/accel_x&y&z_mag_falling_en
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Similar to accel_x0_thresh[_rising|_falling]_en, but here the
|
||||
Similar to accel_x_thresh[_rising|_falling]_en, but here the
|
||||
magnitude of the channel is compared to the threshold, not its
|
||||
signed value.
|
||||
|
||||
What: /sys/.../accel_x0_<raw|input>_mag[_rising|_falling]_value
|
||||
What: /sys/.../accel_raw_mag_value
|
||||
What: /sys/.../accel_x_raw_mag_rising_value
|
||||
What: /sys/.../accel_y_raw_mag_rising_value
|
||||
What: /sys/.../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.
|
||||
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/.../accel_x0_mag[_rising|_falling]_meanperiod
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) over which the value of the channel
|
||||
is averaged before being compared to the threshold
|
||||
|
||||
What: /sys/.../accel_x0_mag[_rising|_falling]_period
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) for which the condition must be true
|
||||
before an event occurs.
|
||||
|
||||
What: /sys/.../device[n]:event[m]/accel_x0_roc[_rising|_falling]_en
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Similar to accel_x0_thresh[_rising|_falling]_en, but here the
|
||||
first differential is compared with the threshold.
|
||||
|
||||
What: /sys/.../accel_x0_<raw|input>_roc[_rising|_falling]_value
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
The value to which the first differential of the channel is
|
||||
compared.
|
||||
|
||||
What: /sys/.../accel_x0_roc[_rising|_falling]_meanperiod
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) over which the value of the channel
|
||||
is averaged before being compared to the threshold
|
||||
|
||||
What: /sys/.../accel_x0_roc[_rising|_falling]_period
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Period of time (in seconds) for which the condition must be true
|
||||
before an event occurs.
|
||||
|
||||
What: /sys/.../device[n]/device[n]:buffer:event/dev
|
||||
What: /sys/bus/iio/devices/deviceX:buffer:event/dev
|
||||
KernelVersion: 2.6.35
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Buffer for device n event character device major:minor numbers.
|
||||
Buffer for device X event character device major:minor numbers.
|
||||
|
||||
What: /sys/.../device[n]/device[n]:buffer:access/dev
|
||||
What: /sys/bus/iio/devices/deviceX:buffer:access/dev
|
||||
KernelVersion: 2.6.35
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Buffer for device n access character device o major:minor numbers.
|
||||
Buffer for device X access character device major:minor numbers.
|
||||
|
||||
What: /sys/.../device[n]:buffer/trigger
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/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/trigger[n]/name.
|
||||
in /sys/class/iio/triggerY/name.
|
||||
|
||||
What: /sys/.../device[n]:buffer/length
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/length
|
||||
KernelVersion: 2.6.35
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Number of scans contained by the buffer.
|
||||
|
||||
What: /sys/.../device[n]:buffer/bytes_per_datum
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/bytes_per_datum
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Bytes per scan. Due to alignment fun, the scan may be larger
|
||||
than implied directly by the scan_element parameters.
|
||||
|
||||
What: /sys/.../device[n]:buffer/enable
|
||||
What: /sys/bus/iio/devices/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/.../device[n]:buffer/alignment
|
||||
KernelVersion: 2.6.35
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Minimum data alignment. Scan elements larger than this are
|
||||
aligned to the nearest power of 2 times this. (may not be
|
||||
true in weird hardware buffers that pack data well)
|
||||
|
||||
What: /sys/.../device[n]/buffer/scan_elements
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/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/.../device[n]/buffer/scan_elements/accel_x0_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_x_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_y_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_z_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_x_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_y_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_z_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_x_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_y_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_z_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/timestamp_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_supply_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY-inZ_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_x_en
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_y_en
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
Scan element control for triggered data capture.
|
||||
|
||||
What: /sys/.../device[n]/buffer/scan_elements/accel[_x0]_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/inY_type
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/in-in_type
|
||||
What: /sys/.../deviceX:buffer/scan_elements/inY_supply_type
|
||||
What: /sys/.../deviceX:buffer/scan_elements/timestamp_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 userspace.
|
||||
Form is [s|u]bits/storagebits. 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. 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 will be a signed 48 bit integer
|
||||
stored in a 64 bit location aligned to a a64 bit boundary.
|
||||
and hence the form in which it is read from user-space.
|
||||
Form is [s|u]bits/storagebits[>>shift]. 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 a64 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/.../device[n]/buffer/scan_elements/accel[_x0]_index
|
||||
What: /sys/.../deviceX:buffer/scan_elements/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/bus/iio/devices/deviceX:buffer/scan_elements/inY_index
|
||||
What: /sys/.../deviceX:buffer/scan_elements/inY_supply_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_x_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_y_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/accel_z_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_x_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_y_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/gyro_z_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_x_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_y_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/magn_z_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_x_index
|
||||
What: /sys/bus/iio/devices/deviceX:buffer/scan_elements/incli_y_index
|
||||
What: /sys/.../deviceX:buffer/scan_elements/timestamp_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 dependant on
|
||||
what is enabled and may not be contiguous. Thus for userspace
|
||||
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/.../device[n]/buffer/scan_elements/accel[_x0]_shift
|
||||
KernelVersion: 2.6.37
|
||||
Contact: linux-iio@vger.kernel.org
|
||||
Description:
|
||||
A bit shift (to right) that must be applied prior to
|
||||
extracting the bits specified by accel[_x0]_precision.
|
||||
|
|
|
|||
Loading…
Reference in New Issue