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| author | Chase Douglas <chase.douglas@canonical.com> | 2012-05-24 10:48:38 -0700 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2012-05-25 09:33:52 +1000 |
| commit | 9ce068e760e1282183c7aa1b4cc6b0fcb6b494dd (patch) | |
| tree | f5780b705e6e5f79e91023f870f41c9187093166 | |
| parent | Fix some obvious constness-related compile warnings. (diff) | |
| download | xf86-input-evdev-9ce068e760e1282183c7aa1b4cc6b0fcb6b494dd.tar.gz xf86-input-evdev-9ce068e760e1282183c7aa1b4cc6b0fcb6b494dd.tar.bz2 xf86-input-evdev-9ce068e760e1282183c7aa1b4cc6b0fcb6b494dd.zip | |
Report the correct number of touches for MT protocol B devices
Protocol B devices report the number of touches by giving a maximum and
minimum slot value. The current code ignores the minimum value, which is
usually 0, and underreports the number of touches by 1.
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
| -rw-r--r-- | src/evdev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/evdev.c b/src/evdev.c index feb018c..4b86f66 100644 --- a/src/evdev.c +++ b/src/evdev.c @@ -1384,7 +1384,8 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device) XIDependentTouch : XIDirectTouch; if (pEvdev->mtdev->caps.slot.maximum > 0) - num_touches = pEvdev->mtdev->caps.slot.maximum; + num_touches = pEvdev->mtdev->caps.slot.maximum - + pEvdev->mtdev->caps.slot.minimum + 1; if (!InitTouchClassDeviceStruct(device, num_touches, mode, num_mt_axes_total)) { |