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authorPali Rohár <pali.rohar@gmail.com>2018-03-21 21:03:36 +0100
committerJonathan Corbet <corbet@lwn.net>2018-03-26 16:40:34 +0200
commitb520e49befd02358f7cd6526ea01dcd9bf0f5e61 (patch)
tree5274edf95a59ba6bcddd4bb0d41e2b3ad4c35271 /Documentation/input
parentDocumentation: Mention why %p prints ptrval (diff)
downloadlinux-b520e49befd02358f7cd6526ea01dcd9bf0f5e61.tar.xz
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Input: alps - Update documentation for trackstick v3 format
Bits for M, R and L buttons are already processed in alps. Other newly documented bits not yet. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/input')
-rw-r--r--Documentation/input/devices/alps.rst7
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/input/devices/alps.rst b/Documentation/input/devices/alps.rst
index 6779148e428c..b556d6bde5e1 100644
--- a/Documentation/input/devices/alps.rst
+++ b/Documentation/input/devices/alps.rst
@@ -192,10 +192,13 @@ The final v3 packet type is the trackstick packet::
byte 0: 1 1 x7 y7 1 1 1 1
byte 1: 0 x6 x5 x4 x3 x2 x1 x0
byte 2: 0 y6 y5 y4 y3 y2 y1 y0
- byte 3: 0 1 0 0 1 0 0 0
- byte 4: 0 z4 z3 z2 z1 z0 ? ?
+ byte 3: 0 1 TP SW 1 M R L
+ byte 4: 0 z6 z5 z4 z3 z2 z1 z0
byte 5: 0 0 1 1 1 1 1 1
+TP means Tap SW status when tap processing is enabled or Press status when press
+processing is enabled. SW means scroll up when 4 buttons are available.
+
ALPS Absolute Mode - Protocol Version 4
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