Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[sfrench/cifs-2.6.git] / Documentation / input / multi-touch-protocol.rst

diff --git a/Documentation/input/multi-touch-protocol.rst b/Documentation/input/multi-touch-protocol.rst
index 8035868c56bc651a1d57af01f578a70a211e59d2..b51751a0cd5dc0b661ae78cbb70c7fc88a3fa83e 100644 (file)
--- a/Documentation/input/multi-touch-protocol.rst
+++ b/Documentation/input/multi-touch-protocol.rst
@@ -269,10 +269,11 @@ ABS_MT_ORIENTATION
     The orientation of the touching ellipse. The value should describe a signed
     quarter of a revolution clockwise around the touch center. The signed value
     range is arbitrary, but zero should be returned for an ellipse aligned with
-    the Y axis of the surface, a negative value when the ellipse is turned to
-    the left, and a positive value when the ellipse is turned to the
-    right. When completely aligned with the X axis, the range max should be
-    returned.
+    the Y axis (north) of the surface, a negative value when the ellipse is
+    turned to the left, and a positive value when the ellipse is turned to the
+    right. When aligned with the X axis in the positive direction, the range
+    max should be returned; when aligned with the X axis in the negative
+    direction, the range -max should be returned.
 
     Touch ellipsis are symmetrical by default. For devices capable of true 360
     degree orientation, the reported orientation must exceed the range max to