MAX_CONTACTS
error = input_mt_init_slots(input, MAX_CONTACTS,
unsigned int contact_count[MAX_CONTACTS + 1];
struct input_mt_pos pos[MAX_CONTACTS];
int slots[MAX_CONTACTS];
if (slotnum < 0 || slotnum >= MAX_CONTACTS)
error = input_mt_init_slots(input_dev, MAX_CONTACTS,