> 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). And it has been in userland since at least 2008. It can be found in input-synaptics, input-multitouch, input-mtrack, possibly more places. Thanks, Henrik -- 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
