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From: Jiri Kosina on 23 Jun 2010 10:30
On Wed, 23 Jun 2010, Henrik Rydberg wrote:

> 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(a)euromail.se>

Feel free to add

Signed-off-by: Jiri Kosina <jkosina(a)suse.cz>

to any other further patch respins (if needed), or if actually applying
this patch to any tree together with the rest of the series.

Thanks.

> ---
> 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 7a0d2e4..69d152e 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 &&
> --
> 1.6.3.3
>

--
Jiri Kosina
SUSE Labs, Novell Inc.
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