cuda_intr_state
static int cuda_intr_state(struct cuda_softc *);
if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc)) {
if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc) &&
if (cuda_intr_state(sc) == 0) {
if (cuda_intr_state(sc) == 0) {
if (cuda_intr_state(sc)) {
if (cuda_intr_state(sc)) { /* ADB intr low during write */