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| author | Peter Hutterer <peter.hutterer@who-t.net> | 2015-03-27 09:59:55 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-03-31 14:46:40 -0700 |
| commit | 33096777519a66e632fed7f1e54e6480b4228827 (patch) | |
| tree | 03a913176ce559976950cce1be11b595ed62dbae /Documentation/input | |
| parent | 85734b1a5de80341d7d01cd29bbea9cf6f77094b (diff) | |
| download | linux-33096777519a66e632fed7f1e54e6480b4228827.tar.bz2 | |
Input: define INPUT_PROP_ACCELEROMETER behavior
Spell out what this property means to userspace. If the property is set, all
directional axes must be accelerometer axes, any other axes are left as-is.
This allows an accelerometer device to e.g. have an ABS_WHEEL.
It is not permitted to mix normal directional axes and accelerometer axes on
the same device node.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/input')
| -rw-r--r-- | Documentation/input/event-codes.txt | 6 |
1 files changed, 6 insertions, 0 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. |