SB_DSP20_FM_DEV 500 sound/isa/sb/sb_mixer.c SB_SINGLE("Synth Playback Volume", SB_DSP20_FM_DEV, 1, 7), SB_DSP20_FM_DEV 506 sound/isa/sb/sb_mixer.c { SB_DSP20_FM_DEV, 0 }, SB_DSP20_FM_DEV 806 sound/isa/sb/sb_mixer.c SB_DSP20_FM_DEV,