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Operating Systems Linux Debian Reading data from a serial port Post 302919851 by Meow613 on Saturday 4th of October 2014 10:16:52 PM
Old 10-04-2014
Thanks Corona688

Code:
cat < /dev/ttyS0 > myfile
bash: /dev/ttyS0: Device or resource busy

No screen program running
 

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sredird(8)							      sredird								sredird(8)

NAME
sredird - RFC 2217 serial port server SYNOPSIS
sredird [-i] log-level serial-device lock-file [poll-interval] DESCRIPTION
This manual page documents briefly the sredird, program. This program when run through inetd will use the RFC 2217 extensions to TELNET to implement serial commands over the TCP connection and interface to a specified serial port. OPTIONS
An optional first parameter is '-i' to enable compatability with Cisco IOS. The first mandatory parameter is the log level for use in syslog. The next mandatory parameter is the device node for the serial device, it must be a fully qualified path. The final mandatory parameter is the file name for the lock file to be used to prevent multiple instances of sredird from talking to the serial port at the same time, or to allow sharing a port between modem and sredird. EXAMPLE
Here is a configuration line for running it from inetd: sredir stream tcp nowait root /usr/sbin/tcpd /usr/sbin/sredird 5 /dev/modem /var/lock/LCK..modem AUTHOR
This man page was written by Russell Coker <russell@coker.com.au>. May be freely used and distributed without restriction under the terms of the GPL. The sredird program was written by Denis Sbragion <d.sbragion@infotecna.it> and Jeffrey Altman <jaltman@columbia.edu>. Russell Coker <;russell@coker.com.au> 2.2.0 sredird(8)
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