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| author | David S. Miller <davem@davemloft.net> | 2014-07-30 13:25:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-30 13:25:49 -0700 |
| commit | f139c74a8df071217dcd63f3ef06ae7be7071c4d (patch) | |
| tree | 5711f695577a18a06dbcd0101956e97b388ffa1a /Documentation | |
| parent | bd695a5f0ccf7b38982c426d86055ff3591c9b5b (diff) | |
| parent | 26bcd8b72563b4c54892c4c2a409f6656fb8ae8b (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/input/event-codes.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/input/event-codes.txt b/Documentation/input/event-codes.txt index f1ea2c69648..c587a966413 100644 --- a/Documentation/input/event-codes.txt +++ b/Documentation/input/event-codes.txt @@ -281,6 +281,19 @@ gestures can normally be extracted from it. If INPUT_PROP_SEMI_MT is not set, the device is assumed to be a true MT device. +INPUT_PROP_TOPBUTTONPAD: +----------------------- +Some laptops, most notably the Lenovo *40 series provide a trackstick +device but do not have physical buttons associated with the trackstick +device. Instead, the top area of the touchpad is marked to show +visual/haptic areas for left, middle, right buttons intended to be used +with the trackstick. + +If INPUT_PROP_TOPBUTTONPAD is set, userspace should emulate buttons +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. + Guidelines: ========== The guidelines below ensure proper single-touch and multi-finger functionality. |