NAME
        Start -- restart paused I/O over the parallel port

   FUNCTION
        This command restarts the current I/O activity on the parallel
        port by reactivating the handshaking sequence.

   IO REQUEST
        io_Message      mn_ReplyPort initialized
        io_Device       set by opendevice
        io_Unit         set by opendevice
        io_Command      CMD_START (07)

   SEE ALSO
        parallel.device/cmd_stop