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| author |   James Morris <james.l.morris@oracle.com> | 2014-10-01 00:44:04 +1000 |
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| committer | James Morris <james.l.morris@oracle.com> | 2014-10-01 00:44:04 +1000 |
| commit | 6c8ff877cdf13cd5287ed9d700cfb6cb70e2bfa1 (patch) | |
| tree | 2ab49b7d19fb69cdae5b6be9e7ba44f6cf3d45ef /Documentation/input/event-codes.txt | |
| parent | Merge tag 'keys-next-20140922' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next (diff) | |
| parent | Linux 3.16 (diff) | |
| download | linux-dev-6c8ff877cdf13cd5287ed9d700cfb6cb70e2bfa1.tar.xz linux-dev-6c8ff877cdf13cd5287ed9d700cfb6cb70e2bfa1.zip | |
Merge commit 'v3.16' into next
Diffstat (limited to 'Documentation/input/event-codes.txt')
| -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 f1ea2c69648d..c587a966413e 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. |