spdif_device     1729 sound/pci/cs46xx/cs46xx.h int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device);
spdif_device     2468 sound/pci/cs46xx/cs46xx_lib.c int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device)
spdif_device     2505 sound/pci/cs46xx/cs46xx_lib.c 			kctl->id.device = spdif_device;