int canque_get_inslot4id(struct canque_ends_t *qends,
struct canque_edge_t **qedgep, struct canque_slot_t **slotp,
int cmd, unsigned long id, int prio);
int canque_get_inslot4id(struct canque_ends_t *qends,
struct canque_edge_t **qedgep, struct canque_slot_t **slotp,
int cmd, unsigned long id, int prio);