NbtDispatchClose(
  IN  PDEVICE_OBJECT   Device,
  IN  PIRP             pIrp
  );

Routine Description:

    This is the NBT driver's dispatch function for IRP_MJ_CLOSE
    requests.  This is called after Cleanup (above) is called.

Arguments:

    device  - ptr to device object for target device
    pIrp     - ptr to I/O request packet

Return Value:

    an NT status code.