Make buttons unsigned, there are no negative button numbers

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/src/libinput.h b/src/libinput.h
index e9be9a4..d3eb2ea 100644 (file)
--- a/src/libinput.h
+++ b/src/libinput.h
@@ -148,7 +148,7 @@ struct libinput_event_pointer_motion_absolute {
 struct libinput_event_pointer_button {
        struct libinput_event base;
        uint32_t time;
-       int32_t button;
+       uint32_t button;
        enum libinput_pointer_button_state state;
 };