snd_emu10k1_interrupt 1818 include/sound/emu10k1.h irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id); snd_emu10k1_interrupt 1885 sound/pci/emu10k1/emu10k1_main.c if (request_irq(pci->irq, snd_emu10k1_interrupt, IRQF_SHARED,