ES1688_SPEAKER_DEV 978 sound/isa/es1688/es1688_lib.c ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0), ES1688_SPEAKER_DEV 1000 sound/isa/es1688/es1688_lib.c { ES1688_SPEAKER_DEV, 0 },