ei_interrupt
EXPORT_SYMBOL(ei_interrupt);
irqreturn_t ei_interrupt(int irq, void *dev_id);
ei_interrupt(irq, dev_id);
int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED,
irqreturn_t ret = ei_interrupt(irq, dev_id);
ei_interrupt(dev->irq, dev);
retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
err = request_irq (dev->irq, ei_interrupt, 0, DRV_NAME, dev);
i = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev);