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Date: Wed, 21 Mar 2018 21:03:36 +0100
From: Pali Rohár <pali.rohar@...il.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
Jonathan Corbet <corbet@....net>,
Masaki Ota <masaki.ota@...alps.com>
Cc: linux-input@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...il.com>
---
This is based on information which Masaki Ota provided to us.
---
Documentation/input/devices/alps.rst | 7 +++++--
1 file 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
---------------------------------------
--
2.11.0
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