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f04f58213f
The kernel requires absolute axes to fit into the semantic ABS_ naming scheme but doesn't provide enough free bits unlabelled axes. Devices with many axes run into the ABS_MT range and look like MT devices when they're not. See http://www.freedesktop.org/software/libevdev/doc/1.3/group__mt.html Affected is e.g. the MS Surface 2 touch cover that has codes [41, 62] set for min/max [-127, 127]. No special handling needed other than forcing has_mt/has_touch to be 0. ABS_MT_* events from non-touch devices are discarded by libinput. The has_mt/has_touch = 0 isn't needed, but looks nicer than an empty if body. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=85836 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Hans de Goede <hdegoede@redhat.com> |
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libinput libinput is a library that handles input devices for display servers and other applications that need to directly deal with input devices. It provides device detection, device handling, input device event processing and abstraction so minimize the amount of custom input code the user of libinput need to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating pointer events from touchpads, pointer acceleration, etc. libinput originates from weston, the Wayland reference compositor. The source code of libinput can be found at: http://cgit.freedesktop.org/wayland/libinput For more information, visit: http://www.freedesktop.org/wiki/Software/libinput/