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Commit 6967b4d9 authored by Henrik Rydberg's avatar Henrik Rydberg Committed by Dmitry Torokhov
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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: default avatarHenrik Rydberg <rydberg@euromail.se>
Acked-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent c13aea03

drivers/hid/hid-input.c

+3 −0
Original line number Diff line number Diff line
@@ -534,6 +534,9 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel 
			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 &&