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| author | Henrik Rydberg <rydberg@euromail.se> | 2010-06-23 09:31:37 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-06-23 13:05:26 -0700 |
| commit | 6967b4d9de4a7cf3b00cd9a93981d3206d75a1d8 (patch) | |
| tree | c0e37929681382b2dca9a8be92442bffba8dea6e /drivers/hid/hid-input.c | |
| parent | c13aea033cbeb181e7e135f280ecdfca49f90180 (diff) | |
| download | linux-6967b4d9de4a7cf3b00cd9a93981d3206d75a1d8.tar.gz | |
Input: hid-input - use a larger event buffer for MT devices
The MT devices produce a lot of data. Tell the underlying input device
approximately how many events will be sent per synchronization, to allow
for better buffering. The number is a template based on continuously
reporting details for each finger on a single hand.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/hid/hid-input.c')
| -rw-r--r-- | drivers/hid/hid-input.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 7a0d2e4661a1..69d152e16a6a 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -534,6 +534,9 @@ mapped: input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); else input_set_abs_params(input, usage->code, a, b, 0, 0); + /* use a larger default input buffer for MT devices */ + if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0) + input_set_events_per_packet(input, 60); } if (usage->type == EV_ABS && |