$  UCM
  Universal Serial Bus Configuration Manager, Version V1.0
  UCM> SHOW DEVICE /UNCONFIGURED
  DEVICE
  DEVICE_TYPE                     TENTATIVE
  DEVICE_NAME_ROOT                AGA
  UNIT_NUMBER                     0
  BUS                             1
  PATH                            1.0.0.0.0.0
  END_DEVICE

  UCM> ADD DEVICE AGA0:
  UCM> SHOW DEVICE /PERMANENT /FULL AGA0:
  DEVICE
  DEVICE_TYPE                     PERMANENT
  DEVICE_NAME_ROOT                AGA
  UNIT_NUMBER                     0
  DRIVER                          SYS$AGDRIVER.EXE
  BUS_NUMBER                      1
  PATH                            1.0.0.0.0.0
  HID_USAGE_DATA                  65540
  BEGIN_INTERFACE
  HID_USAGE_DATA                  65540
  END_INTERFACE
  END_DEVICE
  UCM>

      In this example, the first UCM command SHOW DEVICE
      /UNCONFIGURED indicates that the device has not yet been
      configured. It displays only the information that appears in
      the generic list: the device name root, the unit number, the
      bus, and the path.

      After the ADD DEVICE command, the second SHOW DEVICE command,
      with the /PERMANENT and /FULL qualifiers, displays the
      information in the permanent list. The list includes the name
      of the driver assigned to the device, the bus number; and the
      Human Interface Device (HID) usage data number, which is used
      to configures devices in the HID interface class. Examples of
      HID devices are keyboards, mice, joysticks, and so on.