AC97_WM9704_RMIXER_VOL 518 sound/pci/ac97/ac97_patch.c AC97_DOUBLE("Rear Playback Volume", AC97_WM9704_RMIXER_VOL, 8, 0, 31, 1), AC97_WM9704_RMIXER_VOL 519 sound/pci/ac97/ac97_patch.c AC97_SINGLE("Rear Playback Switch", AC97_WM9704_RMIXER_VOL, 15, 1, 1),