linux/input/mt.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
18 #define INPUT_MT_TRACK		0x0008	/* use in-kernel tracking */
19 #define INPUT_MT_SEMI_MT	0x0010	/* semi-mt device, finger count handled manually */
22  * struct input_mt_slot - represents the state of an input MT slot
28 	int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
34  * struct input_mt - state of tracked contacts
40  * @red: reduced cost matrix for in-kernel tracking
56 	slot->abs[code - ABS_MT_FIRST] = value;  in input_mt_set_value()
62 	return slot->abs[code - ABS_MT_FIRST];  in input_mt_get_value()
73 	return slot->frame == mt->frame;  in input_mt_is_used()
82 	return mt->trkid++ & TRKID_MAX;  in input_mt_new_trkid()
101 				unsigned int tool_type, bool active);
115  * struct input_mt_pos - contact position