From b08a6022f5704b9769c001627e8a608e95ce6bae Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sun, 21 Mar 2010 22:31:26 -0700 Subject: [PATCH] --- yaml --- r: 189922 b: refs/heads/master c: 97065e033ec5fd824d0133ecd0c614fe1e5c20bd h: refs/heads/master v: v3 --- [refs] | 2 +- .../Documentation/input/multi-touch-protocol.txt | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/[refs] b/[refs] index e77a4e5b5055..e45783f680a6 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: d90e6f6aad0ffdc674bc3a05c85c40dcc18e604c +refs/heads/master: 97065e033ec5fd824d0133ecd0c614fe1e5c20bd diff --git a/trunk/Documentation/input/multi-touch-protocol.txt b/trunk/Documentation/input/multi-touch-protocol.txt index 8490480ce432..eacb22606664 100644 --- a/trunk/Documentation/input/multi-touch-protocol.txt +++ b/trunk/Documentation/input/multi-touch-protocol.txt @@ -68,6 +68,22 @@ like: SYN_MT_REPORT SYN_REPORT +Here is the sequence after lifting one of the fingers: + + ABS_MT_POSITION_X + ABS_MT_POSITION_Y + SYN_MT_REPORT + SYN_REPORT + +And here is the sequence after lifting the remaining finger: + + SYN_MT_REPORT + SYN_REPORT + +If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the +ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the +last SYN_REPORT will be dropped by the input core, resulting in no +zero-finger event reaching userland. Event Semantics ---------------