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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-03 23:58:48 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-03 23:58:48 +0200 |
| commit | 1cced5015b171415169d938fb179c44fe060dc15 (patch) | |
| tree | 6bbcc2f3de150af5ecc630fc5d92d5a8ef47d59c /Documentation | |
| parent | Merge branch 'for-linus' of git://git.kernel.dk/linux-block (diff) | |
| parent | Input: define INPUT_PROP_ACCELEROMETER behavior (diff) | |
| download | linux-1cced5015b171415169d938fb179c44fe060dc15.tar.xz linux-1cced5015b171415169d938fb179c44fe060dc15.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
"A fix for ALPS driver for issue introduced in the latest update and a
tweak for yet another Lenovo box in Synaptics.
There will be more ALPS tweaks coming.."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: define INPUT_PROP_ACCELEROMETER behavior
Input: synaptics - fix min-max quirk value for E440
Input: synaptics - add quirk for Thinkpad E440
Input: ALPS - fix max coordinates for v5 and v7 protocols
Input: add MT_TOOL_PALM
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/input/event-codes.txt | 6 | ||||
| -rw-r--r-- | Documentation/input/multi-touch-protocol.txt | 9 |
2 files changed, 12 insertions, 3 deletions
diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt index c587a966413e..96705616f582 100644 --- a/Documentation/input/event-codes.txt +++ b/Documentation/input/event-codes.txt @@ -294,6 +294,12 @@ accordingly. This property does not affect kernel behavior. The kernel does not provide button emulation for such devices but treats them as any other INPUT_PROP_BUTTONPAD device. +INPUT_PROP_ACCELEROMETER +------------------------- +Directional axes on this device (absolute and/or relative x, y, z) represent +accelerometer data. All other axes retain their meaning. A device must not mix +regular directional axes and accelerometer axes on the same event node. + Guidelines: ========== The guidelines below ensure proper single-touch and multi-finger functionality. diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt index 7b4f59c09ee2..b85d000faeb4 100644 --- a/Documentation/input/multi-touch-protocol.txt +++ b/Documentation/input/multi-touch-protocol.txt @@ -312,9 +312,12 @@ ABS_MT_TOOL_TYPE The type of approaching tool. A lot of kernel drivers cannot distinguish between different tool types, such as a finger or a pen. In such cases, the -event should be omitted. The protocol currently supports MT_TOOL_FINGER and -MT_TOOL_PEN [2]. For type B devices, this event is handled by input core; -drivers should instead use input_mt_report_slot_state(). +event should be omitted. The protocol currently supports MT_TOOL_FINGER, +MT_TOOL_PEN, and MT_TOOL_PALM [2]. For type B devices, this event is handled +by input core; drivers should instead use input_mt_report_slot_state(). +A contact's ABS_MT_TOOL_TYPE may change over time while still touching the +device, because the firmware may not be able to determine which tool is being +used when it first appears. ABS_MT_BLOB_ID |