gpio_pin_intrcaps
intrcaps = gpio_pin_intrcaps(sc->sc_gpio, &sc->sc_map, 0);
intrcaps = gpio_pin_intrcaps(sc->sc_gpio, &sc->sc_map, 1);
intrcaps = gpio_pin_intrcaps(sc->sc_gpio, &sc->sc_map, 0);
int gpio_pin_intrcaps(void *, struct gpio_pinmap *, int);