mlx_intr
if (sc->mlx_intr)
bus_teardown_intr(sc->mlx_dev, sc->mlx_irq, sc->mlx_intr);
INTR_ENTROPY | INTR_MPSAFE, NULL, mlx_intr, sc, &sc->mlx_intr);
void *mlx_intr; /* interrupt handle */
extern void mlx_intr(void *data);