COMM_IRQ_BASE
unsigned int offset = 4 * (d->hwirq - COMM_IRQ_BASE);
if (hwirq < COMM_IRQ_BASE) {
#define IRQ_OFFSET(irq) ((irq < COMM_IRQ_BASE) ? irq : (irq - COMM_IRQ_BASE))
(TRIG_BYTE_OFFSET(IRQ_OFFSET(irq)) + ((irq < COMM_IRQ_BASE) ? \