snd_mixart_interrupt 1327 sound/pci/mixart/mixart.c if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED, snd_mixart_interrupt 566 sound/pci/mixart/mixart_core.h irqreturn_t snd_mixart_interrupt(int irq, void *dev_id);