USB Mixer: usb_id=0x0bda4014, ctrlif=0, ctlerr=0
Card: Dell-WD15-Dock
  Unit: 3
    Control: name="Loudness", index=0
    Info: id=3, control=10, cmask=0x0, channels=1, type="BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
  Unit: 3
    Control: name="Mic Capture Volume", index=0
    Info: id=3, control=2, cmask=0x3, channels=2, type="S16"
    Volume: min=-8576, max=7680, dBmin=-3350, dBmax=3000
  Unit: 3
    Control: name="Mic Capture Switch", index=0
    Info: id=3, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
