SB_DSP20_PCM_DEV 499 sound/isa/sb/sb_mixer.c SB_SINGLE("PCM Playback Volume", SB_DSP20_PCM_DEV, 1, 3), SB_DSP20_PCM_DEV 805 sound/isa/sb/sb_mixer.c SB_DSP20_PCM_DEV,