Date: Sat, 29 Jan 2000 14:52:25 +0200 From: Giorgos Keramidas <charon@hades.hell.gr> To: courtney@whtz.com Cc: freebsd-questions@freebsd.org Subject: Re: Serial ports in perl Message-ID: <20000129145225.E55491@hades.hell.gr> In-Reply-To: <85256874.0059FE6B.00@mail.whtz.com>; from courtney@whtz.com on Fri, Jan 28, 2000 at 11:22:57AM -0500 References: <85256874.0059FE6B.00@mail.whtz.com>
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On Fri, Jan 28, 2000 at 11:22:57AM -0500, courtney@whtz.com wrote:
>
>
> Hey everyone-
>
> Question for the brain trust-
>
> how would I go about access a serial port in FreeBSD in perl (I.E. I want
> to send a string from perl out the serial port...)
Like any normal file, open it with open(), read from it with <>, and
print to it with print(). What you want to know is the name of the
serial port to open each time. Serial ports in BSD are named
/dev/cuaa? so the following piece sends a small string to the first
serial port (COM1, as MS-Dog users know it).
open(MODEM, ">/dev/cuaa0") || die "could not open modem device";
print MODEM "at\015";
close MODEM;
--
Giorgos Keramidas, < keramida @ ceid . upatras . gr >
"Don't let your schooling interfere with your education." [Mark Twain]
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