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authorAl Viro <viro@zeniv.linux.org.uk>2015-04-12 05:27:19 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-12 05:27:19 +0300
commit39c853ebfe169f187a760b34f9cbf54751bfce00 (patch)
tree2a5a741d0cff7d4f90998b31b32ff80cfccd0369 /Documentation/input/alps.txt
parentfdc81f45e9f57858da6351836507fbcf1b7583ee (diff)
parent01e97e6517053d7c0b9af5248e944a9209909cf5 (diff)
downloadlinux-39c853ebfe169f187a760b34f9cbf54751bfce00.tar.xz
Merge branch 'for-davem' into for-next
Diffstat (limited to 'Documentation/input/alps.txt')
-rw-r--r--Documentation/input/alps.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt
index a63e5e013a8c..92ae734c00c3 100644
--- a/Documentation/input/alps.txt
+++ b/Documentation/input/alps.txt
@@ -114,6 +114,9 @@ ALPS Absolute Mode - Protocol Version 2
byte 4: 0 y6 y5 y4 y3 y2 y1 y0
byte 5: 0 z6 z5 z4 z3 z2 z1 z0
+Protocol Version 2 DualPoint devices send standard PS/2 mouse packets for
+the DualPoint Stick.
+
Dualpoint device -- interleaved packet format
---------------------------------------------
@@ -127,6 +130,11 @@ Dualpoint device -- interleaved packet format
byte 7: 0 y6 y5 y4 y3 y2 y1 y0
byte 8: 0 z6 z5 z4 z3 z2 z1 z0
+Devices which use the interleaving format normally send standard PS/2 mouse
+packets for the DualPoint Stick + ALPS Absolute Mode packets for the
+touchpad, switching to the interleaved packet format when both the stick and
+the touchpad are used at the same time.
+
ALPS Absolute Mode - Protocol Version 3
---------------------------------------