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authorIngo Molnar <mingo@elte.hu>2012-03-12 20:44:07 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-12 20:44:11 +0100
commit35239e23c66f1614c76739b62a299c3c92d6eb68 (patch)
tree7b1e068df888ec9a00b43c1dd7517a6490da6a94 /Documentation/input/alps.txt
parent3f33ab1c0c741bfab2138c14ba1918a7905a1e8b (diff)
parent87e24f4b67e68d9fd8df16e0bf9c66d1ad2a2533 (diff)
downloadblackbird-op-linux-35239e23c66f1614c76739b62a299c3c92d6eb68.tar.gz
blackbird-op-linux-35239e23c66f1614c76739b62a299c3c92d6eb68.zip
Merge branch 'perf/urgent' into perf/core
Merge reason: We are going to queue up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/input/alps.txt')
-rw-r--r--Documentation/input/alps.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt
index f274c28b5103..2f95308251d4 100644
--- a/Documentation/input/alps.txt
+++ b/Documentation/input/alps.txt
@@ -13,7 +13,8 @@ Detection
All ALPS touchpads should respond to the "E6 report" command sequence:
E8-E6-E6-E6-E9. An ALPS touchpad should respond with either 00-00-0A or
-00-00-64.
+00-00-64 if no buttons are pressed. The bits 0-2 of the first byte will be 1s
+if some buttons are pressed.
If the E6 report is successful, the touchpad model is identified using the "E7
report" sequence: E8-E7-E7-E7-E9. The response is the model signature and is
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