bus_bind_intr
error = bus_bind_intr(dev, irq, cpu);
error = bus_bind_intr(gtask->gt_dev, gtask->gt_irq, cpu);
error = bus_bind_intr(dev, irq, cpu);
error = bus_bind_intr(dev, irq, cpu);
int bus_bind_intr(device_t dev, struct resource *r, int cpu);