Return the minor device class property decoded e.g.,
        Scanner, Printer, Loudspeaker, Camera, etc.

def minor_device_class(self):
        """
        Return the minor device class property decoded e.g.,
        Scanner, Printer, Loudspeaker, Camera, etc.
        """
        minor_device = []
        minor_lookup = BTCoD._MINOR_DEVICE_CLASS.get(self.cod &
                                                     BTCoD._MAJOR_DEVICE_MASK,
                                                     [])
        for i in minor_lookup:
            minor_value = self.cod & i.get('mask')
            minor_device.append(i.get(minor_value, 'Unknown'))
        return minor_device