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iio: Added ABI description for quaternion 

Added documentation for reading quaternion components for 3D rotations.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Srinivas Pandruvada 2014-04-29 00:51:00 +01:00 committed by Jonathan Cameron
parent fc18dddc06
commit b4a2d475ae
1 changed files with 12 additions and 0 deletions
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12
Documentation/ABI/testing/sysfs-bus-iio
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@ -792,6 +792,7 @@ 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
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@ -807,6 +808,7 @@ What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_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
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@ -853,6 +855,7 @@ 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
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@ -899,3 +902,12 @@ Contact: linux-iio@vger.kernel.org
Description:
This attribute is used to get/set the integration time in
seconds.
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.