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| author | Chase Douglas <chase.douglas@canonical.com> | 2010-06-20 21:32:29 -0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-24 10:48:03 +0200 |
| commit | 8d93efb27ab8927ffc7a357f1b2d10039de50ed4 (patch) | |
| tree | 1ffc1eaff7f116243d8a84ae6944b4fb985b8616 /drivers/hid | |
| parent | 9846f350ef4d4108c1154acfc125fe8d8630ef84 (diff) | |
| download | linux-8d93efb27ab8927ffc7a357f1b2d10039de50ed4.tar.gz linux-8d93efb27ab8927ffc7a357f1b2d10039de50ed4.tar.bz2 linux-8d93efb27ab8927ffc7a357f1b2d10039de50ed4.zip | |
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 <chase.douglas@canonical.com>
Acked-by: Michael Poole <mdpoole@troilus.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); } |