USB_AUDIO_AC_FEATURE_UNIT
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT:
if (control->SubType() != USB_AUDIO_AC_FEATURE_UNIT)
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT:
case USB_AUDIO_AC_FEATURE_UNIT: