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Full Discussion: Locking issue with serial port
Top Forums Programming Locking issue with serial port Post 302346785 by smartgupta on Monday 24th of August 2009 05:18:27 AM
Old 08-24-2009
Locking issue with serial port
Hi,
In my application,I need to monitor the devices connected through serial port in solaris sparc 9 OS.I used c and java code for it and I am able to do the same but the problem comes when I restart the system and the open my application and try to monitor it.but I m unable to monitor the devices and getting the message --

Quote:
Warning: The serial port "/dev/term/a" cannot be opened for use.
Please verify that it is entered correctly and that it is not already in use.
but when I delete /var/lock/LCK..a file.I am able to monitor again.

So plz let me know why it is happening and how to solve it.

Thanks in advance..
 

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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)
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