CYTP_MAX_MT_SLOTS
error = input_mt_init_slots(input, CYTP_MAX_MT_SLOTS,
if (n > CYTP_MAX_MT_SLOTS)
n = CYTP_MAX_MT_SLOTS;
struct input_mt_pos pos[CYTP_MAX_MT_SLOTS];
int slots[CYTP_MAX_MT_SLOTS];
if (n > CYTP_MAX_MT_SLOTS)
n = CYTP_MAX_MT_SLOTS;
struct cytp_contact contacts[CYTP_MAX_MT_SLOTS];