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Commit 8d93efb2 authored by Chase Douglas's avatar Chase Douglas Committed by Jiri Kosina
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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: default avatarChase Douglas <chase.douglas@canonical.com>
Acked-by: default avatarMichael Poole <mdpoole@troilus.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 9846f350

drivers/hid/hid-magicmouse.c

+2 −1
Original line number Diff line number Diff line
@@ -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);

			}