VIA2_SCSIIRQ
via2_register_irq(VIA2_SCSIIRQ, ncr5380_irq_intr, sc);
#define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)
via2_register_irq(VIA2_SCSIIRQ, esp_intr, esc);
via2_register_irq(VIA2_SCSIIRQ, esp_dualbus_intr, NULL);
via2_register_irq(VIA2_SCSIIRQ, sbc_irq_intr, ncr_sc);
#define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)