tt_open(1M) — Reliant UNIX 5.44c4

tt_open(1M)                                                     tt_open(1M)

NAME
     ttopen - background program for simple V24 tty printer ports

SYNOPSIS
     /usr/bin/ttopen fullttydevicenames

DESCRIPTION
     Simple tty printer ports (V24) are restricted by the fact the flow
     control (^S/^Q) does not function properly, depending on the quick
     opening/closing of the tty port.

     ttopen is a small program, which permanently opens the specified
     printer tty ports. The program is started by root during system
     startup in the background and runs indefinitely.

EXAMPLES
     /usr/bin/ttopen /dev/term/0 /dev/term/1 ... &

     or

     nohup /usr/bin/ttopen `cat printttys` &

     ttopen permanently opens the specified tty ports, flow control
     (^S/^Q) now works correctly for these simple printer ports (V24).
     printttys is a file, which lists the complete tty printer port names
     (/dev/...) on separate lines.

NOTES
     Do not use this program if IOCS is installed for the ports.

     Only the superuser is allowed to execute ttopen.

FILES
     /etc/rc2.d/S19ttopen





















Page 1                       Reliant UNIX 5.44                Printed 11/98
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