[PATCH v3 3/3] iio:Documentation: Add documentation for hinge sensor channels

[Ye Xiang]

Add channel description for hinge sensor, including channel label
attribute and raw data description.

Signed-off-by: Ye Xiang <xiang.ye@xxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-bus-iio | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index df42bed09f25..82303b1bdff0 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1802,3 +1802,20 @@ Contact:	linux-iio@xxxxxxxxxxxxxxx
 Description:
 		Unscaled light intensity according to CIE 1931/DIN 5033 color space.
 		Units after application of scale are nano nanowatts per square meter.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_raw
+KernelVersion:	5.12
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		Angle of rotation for channel Y. Units after application of scale
+		and offset are radians.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_anglY_label
+KernelVersion:	5.12
+Contact:	linux-iio@xxxxxxxxxxxxxxx
+Description:
+		Optional symbolic label for channel Y.
+		For Intel hid hinge sensor, the label values are:
+		hinge, keyboard, screen. It means the three channels
+		each correspond respectively to hinge angle, keyboard angle,
+		and screen angle.
-- 
2.17.1