i just wrote:

use Device::SerialPort;

#$pass;
#$out;

$port = new Device::SerialPort ( "/dev/ttyS0");
$port->baudrate(9600);
$port->databits(7);
$port->stopbits(1);
$port->parity("odd");

then run:
root@linux5 root# perl -c tt.pl
tt.pl syntax OK
root@linux5 root# perl -W tt.pl
(in cleanup) Can't call method "setcflag" on an undefined value at /usr/lib/perl5/site_perl/5.8.0/Device/SerialPort.pm line 541 during global destruction.

can some tell me what is wrong??

Originally posted as a Categorized Answer.

In reply to Re: Reading RS232 inputs. by wee_chang2002
in thread How to read the RS-232 lines? by Anonymous Monk

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