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| author | Mike Auty <ikelos@gentoo.org> | 2010-08-29 05:35:17 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-08-29 06:39:04 +0200 |
| commit | d9f66c1a46163c7c83411058516a69da547262f8 (patch) | |
| tree | 46b580076157077f0074666db4863815390cc991 /Documentation/SM501.txt | |
| parent | Input: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove() (diff) | |
| download | linux-d9f66c1a46163c7c83411058516a69da547262f8.tar.xz linux-d9f66c1a46163c7c83411058516a69da547262f8.zip | |
Input: wacom - fix mousewheel handling for old wacom tablets
This fixes a regression introduced in
3b57ca0f80c5c8994b5b1e3d3f904cfe727951f2.
The data[6] byte contains either 1 or -1 depending on the whether the
mouse wheel on older wacom tablets is moved down (1) or up (-1). The
patch introduced in the above commit changed the cast from (signed char)
to (signed). When cast as a signed integer and negated, the value of -1
(stored in the byte as 0xff) became -255 rather than 1. This patch
reverts the cast to a (signed char) and also removes an unnecessary
(signed) cast, as all the values operated on are bitmasked.
Signed-off-by: Mike Auty <ikelos@gentoo.org>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Cc; stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'Documentation/SM501.txt')
0 files changed, 0 insertions, 0 deletions