From 29807d1e24b7cd696442d2f600057230f084b3c7 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 14 Nov 2012 16:59:22 +0100 Subject: Input: mt: add input_mt_is_used This patch extracts the test (slot->frame == mt->frame) so that it can be used in third party drivers. Signed-off-by: Benjamin Tissoires Reviewed-by: Henrik Rydberg Signed-off-by: Jiri Kosina --- include/linux/input/mt.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/input') diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h index cc5cca774bab..2e86bd0bfba1 100644 --- a/include/linux/input/mt.h +++ b/include/linux/input/mt.h @@ -69,6 +69,12 @@ static inline bool input_mt_is_active(const struct input_mt_slot *slot) return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0; } +static inline bool input_mt_is_used(const struct input_mt *mt, + const struct input_mt_slot *slot) +{ + return slot->frame == mt->frame; +} + int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots, unsigned int flags); void input_mt_destroy_slots(struct input_dev *dev); -- cgit v1.2.3