Creates an instance of a device unit entity, which controls the
    loading and dumping of microcode for a specific communications
    device.

    create  [node node-id] device unit devunit-name -
            name device-name

    Name is a required argument which specifies the physical device
    this device unit entity controls.  Devunit-name is the
    simplename which identifies this device unit instance.

    Example:

    create device unit device-0 name DSV-0