03-15-2008
From what I have read about minicom, it is a terminal emulation program.
So if you want to connect to another Linux/Unix system via a serial port then you can do that.
The setup that you have (I presume) requires that you communicate with a device over a serial port that does does not have a keyboard.
You will have to write (presumably in C) a device handler, that sends hex 68 to the machine, and then listens on the port for the response.
Usually equipment like this is sold with API software, or has a website that you can use to download software, to solve the problem that you are having.
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LEARN ABOUT DEBIAN
ttysrv
TTYSRV(8) System Manager's Manual TTYSRV(8)
NAME
ttysrv - connect to a serial port and log output
SYNOPSIS
ttysrv [-o option] [-s sock] [-l log] -t tty [-b baud] [-p parity] [-w wordsize] [-i pidfile]
DESCRIPTION
ttysrv is the backend for rconsole. It connects to the serial port, handles the log file and waits for connections from rconsole to view
what's happening on the serial console.
OPTIONS
-t tty Specify which device to connect to.
-s sock
The name of the socket to listen for connections from rconsole on.
-o option
Specify any ttyios options to open the port with. Currently only nolocal is supported.
-l log The logfile to write to. If not set then no log is kept.
-b baud
Set the baud rate to talk to the port at. Defaults to 9600.
-p parity
Set the parity for the serial port. Defaults to none.
-w wordsize
Set the word size for the serial port. Defaults to 8 bits.
-i pidfile
The file to write the pid of ttysrv to. If not specified no such file is written.
SEE ALSO
rconsole(1), remote-tty(1).
AUTHOR
rtty was written by Paul Vixie <vixie@isc.org>. This manual page was written by Jonathan McDowell <noodles@earth.li> for the Debian project
(but may be used by others).
May 23, 2006 TTYSRV(8)