udc_irq
rdrv->irq = udc_irq;
irqreturn_t udc_irq(int irq, void *pdev);
if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) {
EXPORT_SYMBOL_GPL(udc_irq);
ret = devm_request_irq(dev, udc->irq, udc_irq, IRQF_SHARED,