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iio: Add channel for Gravity

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Add new channel types support for gravity sensor.

Gravity sensor provides an application-level or physical collection that
identifies a device that measures exclusively the force of Earth's
gravity along any number of axes.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Song Hongyan
2017-01-05 18:24:03 +08:00
committed by Jonathan Cameron
parent b257c1a45e
commit 571299d099
4 changed files with 14 additions and 0 deletions
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10
Documentation/ABI/testing/sysfs-bus-iio
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@@ -170,6 +170,16 @@ Description:
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_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