lx_interrupt 1008 sound/pci/lx6464es/lx6464es.c err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq, lx_interrupt 168 sound/pci/lx6464es/lx_core.h irqreturn_t lx_interrupt(int irq, void *dev_id);