setport(1M)                                           setport(1M)



     NAME
          setport - set a serial port

     SYNOPSIS
          setport -r [-s speed] device-file...
          setport -o [-s speed] device-file...

     DESCRIPTION
          setport adds or modifies entries for serial ports in
          /etc/inittab.  The placeholder device-file is the name of an
          existing serial port device in /dev.  For a given device-
          file, setport creates an entry in /etc/inittab, if neces-
          sary, and sets the port to allow, or disallow logins as
          desired.

          Since setport creates entries in /etc/inittab, it may be
          used by a device initialization routine called by
          /etc/autoconfig.  In this case, it is important to ensure
          that a device node exists in /dev before running setport
          from an autoconfig initialization routine.

     FLAG OPTIONS
          setport interprets the following arguments

          -r            Respawn:  set the port to permit login ses-
                        sions.

          -o            Set the port to off to disallow login ses-
                        sions.

          -s speed      Specify the initial baud speed to be used.
                        The default is 9600.  For modems, 1200 should
                        usually be specified.


     EXAMPLE
          The following command

               setport -r -s 19200 tty0

          enables login sessions on serial port 0 (the "modem" port),
          with the initial speed set to 19200 baud.


     NOTES
          setport supercedes an earlier program, tty_add and should be
          used in place of tty_add.


     FILES
          /etc/setport
          /etc/inittab         The initialization table



     April, 1990                                                     1

     setport(1M)                                           setport(1M)



     SEE ALSO
          init(1M), mknod(1M), tty_add(1M), inittab(4).





















































     2                                                     April, 1990