Hi Kt, On Mon, May 16, 2016 at 07:27:25PM +0800, 廖崇榮 wrote: > > Only ABS_DISTANCE is not enough for upper OS to distingiush hover event be > triggered from object from faraway to and close touchpad surface or from > object prepare to leave the touchpad surface. Add BTN_TOOL_FINGER flag to > help it. > > object_from_faraway object_inside_hover_area > object_touch_surface > BTN_TOUCH 0 0 1 > BTN_TOOL_FINGER 0 1 1 > ABS_DISTANCE 0 1 0 > > Signed-off by: Duson Lin <dusonlin@xxxxxxxxxx> I was wondering if we could do without modifying all the drivers that are using input_mt_report_pointer_emulation(), by figuring out if we should be emitting BTN_TOOL_FINGER right there: "If device supports ABS_DISTANCE and does not support ABS_MT_DISTANCE and ABS_DISTANCE != 0 is reported in current frame and there are no other contacts then report BTN_TOOL_FINGER." 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
