snd_emu10k1_fx8010_register_irq_handler
int snd_emu10k1_fx8010_register_irq_handler(struct snd_emu10k1 *emu,
result = snd_emu10k1_fx8010_register_irq_handler(emu, snd_emu10k1_fx8010_playback_irq, pcm->gpr_running, substream, &pcm->irq);