vref_led 189 sound/pci/hda/patch_sigmatel.c unsigned int vref_led; vref_led 389 sound/pci/hda/patch_sigmatel.c spec->vref_led = muted ? AC_PINCTL_VREF_50 : AC_PINCTL_VREF_GRD; vref_led 391 sound/pci/hda/patch_sigmatel.c spec->vref_led);