VOID
CpInitialize(
      PCPPORT Port,
      PUCHAR Address,
      ULONG Rate
  );

    Routine Description:

        Fill in the com port port object, set the initial baud rate,
        turn on the hardware.

    Arguments:

        Port - address of port object

        Address - port address of the com port
                    (CP_COM1_PORT, CP_COM2_PORT)

        Rate - baud rate  (CP_BD_150 ... CP_BD_19200)