Hi Friedrich, On Wed, Nov 20, 2013 at 11:54:12PM +0100, Friedrich Schöller wrote: > Trackpads with integrated buttons are hard to use when the driver responds to > movements of the thumb that is resting or clicking on the surface of the > trackpad. This patch adds rudimentary support to filter out these touch events. > > The feature can be turned on via sysfs: > /sys/class/input/input[0-9]+/thumb_ignore: > Enables thumb detection > Values: 0/1 > /sys/class/input/input[0-9]+/thumb_ratio_on: > When the ratio of ABS_MT_TOUCH_MINOR / ABS_MT_TOUCH_MAJOR > times 100 is smaller than this value the touch qualifies > as a thumb. > /sys/class/input/input[0-9]+/thumb_ratio_off: > When the ratio of ABS_MT_TOUCH_MINOR / ABS_MT_TOUCH_MAJOR > times 100 is bigger than this value the touch no longer > qualifies as a thumb. > /sys/class/input/input[0-9]+/thumb_y_on: > When ABS_MT_POSITION_Y is bigger than this value the touch > qualifies as a thumb. > /sys/class/input/input[0-9]+/thumb_y_off: > When ABS_MT_POSITION_Y is smaller than this value the touch > no longer qualifies as a thumb. I'd rather this been implemented in userspace (synaptics and/or evdev X drivers). Thanks. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
