xyl(7)                              CLIX                              xyl(7)



  NAME

    xyl - Multi-channel serial interface driver

  DESCRIPTION

    The xyl driver is a serial interface driver used to access the Xylogics
    16-channel RS232 serial card.  Each port supports transmit data (TXD),
    receive data (RXD), request-to-send (RTS), clear-to-send (CTS), data
    terminal ready (DTR), and data set ready (DSR).

    The xyl driver supports the Xylogics multi-channel serial ports as
    described in termio(7).  The number of available ports depends on the
    platform and system configuration.

  FILES

    /dev/ttz??

  NOTES

    Any open() call returns immediately allowing a process to perform an
    ioctl(), which may specify CLOCAL.  If CLOCAL is not set before the first
    read() or write(), the operation waits for a carrier indicated by the DSR
    signal.  If CLOCAL is set, the state of DSR is ignored.

  CAUTIONS

    The lack of DCD may require special jumpering or special cables for some
    modems.

  RELATED INFORMATION

    Files:  termio(7)




















  2/94 - Intergraph Corporation                                              1