CAC_INTR_ENABLE
cac_outb(sc, CAC_EISAREG_INTR_MASK, CAC_INTR_ENABLE);
cac_outb(sc, CAC_EISAREG_SYSTEM_MASK, CAC_INTR_ENABLE);
(*sc->sc_cl.cl_intr_enable)(sc, CAC_INTR_ENABLE);
return (cac_inl(sc, CAC_REG_INTR_PENDING) & CAC_INTR_ENABLE);
state ? CAC_INTR_ENABLE : CAC_INTR_DISABLE);