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| author |   Hans de Goede <hdegoede@redhat.com> | 2014-07-25 22:41:51 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-07-26 14:03:15 -0700 |
| commit | 105affbfd588d5aec4171234051f7d589f7e62c1 (patch) | |
| tree | 375537f5cc293c97cc2974fb3ad15a4382aa741d /drivers/input/mouse/alps.c | |
| parent | Input: alps - process_bitmap: add alps_get_bitmap_points() helper function (diff) | |
| download | linux-dev-105affbfd588d5aec4171234051f7d589f7e62c1.tar.xz linux-dev-105affbfd588d5aec4171234051f7d589f7e62c1.zip | |
Input: alps - process_bitmap: fix counting of high point bits
alps_process_bitmap was resetting the point bit-count as soon as it saw
2 0 bits in a row. This means that unless the high point actually is at
the end of the bitmap, it would always get its num_bits set to 0.
Instead reset num_bits to 0 on a 0->1 transition, so that with > 2 fingers
we only count the number of bits occupied by the highest finger.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/input/mouse/alps.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index c6af590a07d3..5b35f4fc4d2f 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -342,14 +342,13 @@ static void alps_get_bitmap_points(unsigned int map, if (bit) { if (!prev_bit) { point->start_bit = i; + point->num_bits = 0; (*fingers)++; } point->num_bits++; } else { if (prev_bit) point = high; - else - point->num_bits = 0; } prev_bit = bit; } |