ac97_codec_if_vtbl  307 dev/ic/ac97.c  struct ac97_codec_if_vtbl ac97civ = {
ac97_codec_if_vtbl   57 dev/ic/ac97.h  struct ac97_codec_if_vtbl {
ac97_codec_if_vtbl   73 dev/ic/ac97.h  	struct ac97_codec_if_vtbl *vtbl;