openpic_config
void openpic_config(device_t, u_int, enum intr_trigger, enum intr_polarity);
openpic_config(dev, irq, INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
openpic_config(dev, irq, INTR_TRIGGER_EDGE, INTR_POLARITY_LOW);
DEVMETHOD(pic_config, openpic_config),