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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2010-05-04 11:27:05 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-05-04 11:29:05 -0400 |
| commit | 5306293c9cd2caf41849cc909281bda628bb989e (patch) | |
| tree | 3be4e8231e2772c8a43ddbef5c6a72c20b3054bb /Documentation/input | |
| parent | dbd65a7e44fff4741a0b2c84bd6bace85d22c242 (diff) | |
| parent | 66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8 (diff) | |
Merge commit 'v2.6.34-rc6'
Conflicts:
fs/nfsd/nfs4callback.c
Diffstat (limited to 'Documentation/input')
| -rw-r--r-- | Documentation/input/multi-touch-protocol.txt | 23 | ||||
| -rw-r--r-- | Documentation/input/rotary-encoder.txt | 2 |
2 files changed, 18 insertions, 7 deletions
diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt index 8490480ce43..c0fc1c75fd8 100644 --- a/Documentation/input/multi-touch-protocol.txt +++ b/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 --------------- @@ -217,11 +233,6 @@ where examples can be found. difference between the contact position and the approaching tool position could be used to derive tilt. [2] The list can of course be extended. -[3] The multi-touch X driver is currently in the prototyping stage. At the -time of writing (April 2009), the MT protocol is not yet merged, and the -prototype implements finger matching, basic mouse support and two-finger -scrolling. The project aims at improving the quality of current multi-touch -functionality available in the Synaptics X driver, and in addition -implement more advanced gestures. +[3] Multitouch X driver project: http://bitmath.org/code/multitouch/. [4] See the section on event computation. [5] See the section on finger tracking. diff --git a/Documentation/input/rotary-encoder.txt b/Documentation/input/rotary-encoder.txt index 3a6aec40c0b..8b4129de1d2 100644 --- a/Documentation/input/rotary-encoder.txt +++ b/Documentation/input/rotary-encoder.txt @@ -75,7 +75,7 @@ and the number of steps or will clamp at the maximum and zero depending on the configuration. Because GPIO to IRQ mapping is platform specific, this information must -be given in seperately to the driver. See the example below. +be given in separately to the driver. See the example below. ---------<snip>--------- |