From: Chase Douglas Date: Mon, 21 Jun 2010 01:32:29 +0000 (-0400) Subject: HID: magicmouse: properly account for scroll movement in state X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8d93efb27ab8927ffc7a357f1b2d10039de50ed4;p=openwrt%2Fstaging%2Fblogic.git HID: magicmouse: properly account for scroll movement in state Before this change, sequential scroll events would take a variable amount of movement due to incorrect accounting. This change ensures all scroll movements require a deterministic touch movement for an action to occur. Signed-off-by: Chase Douglas Acked-by: Michael Poole Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 4c4a79c760a2..f44aaf21e1e2 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -189,7 +189,8 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda case TOUCH_STATE_DRAG: step = step / accel_profile[msc->scroll_accel]; if (step != 0) { - msc->touches[id].scroll_y = y; + msc->touches[id].scroll_y -= + step * accel_profile[msc->scroll_accel]; msc->scroll_jiffies = now; input_report_rel(input, REL_WHEEL, step); }