GUSMAX_MONO_MUTE 2453 dev/isa/gus.c    {GUSMAX_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL},
GUSMAX_MONO_MUTE 2916 dev/isa/gus.c  	dip->next = GUSMAX_MONO_MUTE;
GUSMAX_MONO_MUTE 3010 dev/isa/gus.c      case GUSMAX_MONO_MUTE: