diff options
| author | Chase Douglas <chase.douglas@canonical.com> | 2010-06-02 10:28:27 -0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-06-04 12:06:32 +0200 |
| commit | 9846f350ef4d4108c1154acfc125fe8d8630ef84 (patch) | |
| tree | e7ac4280efcfa045c5ae64c511efa91bd4bb0ded /drivers/hid/hid-magicmouse.c | |
| parent | ef566d30a702cc9b49d24edc4ad45c62208a4f5d (diff) | |
HID: magicmouse: disable and add module param for scroll acceleration
Scroll acceleration is unique to the magicmouse driver, and is
unintuitive to a user who is unaware of the functionality. Thus, disable
it by default, but add a module parameter to enable it for power users
who want it.
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/hid-magicmouse.c')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index cd706354496a..4c4a79c760a2 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -30,6 +30,10 @@ static bool emulate_scroll_wheel = true; module_param(emulate_scroll_wheel, bool, 0644); MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel"); +static bool scroll_acceleration = false; +module_param(scroll_acceleration, bool, 0644); +MODULE_PARM_DESC(scroll_acceleration, "Accelerate sequential scroll events"); + static bool report_touches = true; module_param(report_touches, bool, 0644); MODULE_PARM_DESC(report_touches, "Emit touch records (otherwise, only use them for emulation)"); @@ -177,7 +181,9 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda switch (tdata[7] & TOUCH_STATE_MASK) { case TOUCH_STATE_START: msc->touches[id].scroll_y = y; - msc->scroll_accel = min_t(int, msc->scroll_accel + 1, + if (scroll_acceleration) + msc->scroll_accel = min_t(int, + msc->scroll_accel + 1, ARRAY_SIZE(accel_profile) - 1); break; case TOUCH_STATE_DRAG: |