linux-kernel - [Patch v4 6/6] iio: Added ABI description for quaternion

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Message-Id: <1397449647-31708-6-git-send-email-srinivas.pandruvada@linux.intel.com>
Date:	Sun, 13 Apr 2014 21:27:27 -0700
From:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:	jic23@...nel.org
Cc:	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [Patch v4 6/6] iio: Added ABI description for quaternion

Added documentation for reading quaternion components for 3D rotations.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
 Documentation/ABI/testing/sysfs-bus-iio | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 6e02c50..d2c59f9 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -784,6 +784,7 @@ 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@...r.kernel.org
 Description:
@@ -799,6 +800,7 @@ 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@...r.kernel.org
 Description:
@@ -845,6 +847,7 @@ 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@...r.kernel.org
 Description:
@@ -891,3 +894,12 @@ Contact:	linux-iio@...r.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@...r.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.
-- 
1.9.1

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