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From:	Chris Faylor <cgf AT cygnus DOT com>
Date:	Thu, 5 Aug 1999 15:48:12 -0400
To:	ssiddiqi AT ipass DOT net
Cc:	cygwin AT sourceware DOT cygnus DOT com
Subject:	Re: Accessing serial port.
Message-ID:	<19990805154812.A3364@cygnus.com>
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References:	<Pine DOT GSO DOT 4 DOT 10 DOT 9908051257330 DOT 12515-100000 AT scully> <NDBBLHPPKKBKPBLLMFJBCEGKCBAA DOT ssiddiqi AT ipass DOT net> <19990805151017 DOT B3170 AT cygnus DOT com> <37A9E6CE DOT FA1C0BEA AT inspirepharm DOT com>
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In-Reply-To:	<37A9E6CE.FA1C0BEA@inspirepharm.com>; from Suhaib M. Siddiqi on Thu, Aug 05, 1999 at 03:32:30PM -0400

On Thu, Aug 05, 1999 at 03:32:30PM -0400, Suhaib M. Siddiqi wrote:
>I think for serial only might be possible.  In my case, I need more
>then /dev/com1.  I did try /dev/com1 on Windows NT and it was crashing,
>at least my code, with privilaged_access_violation.

That would be one of those cases where you run gdb to find out *why*
it's crashing.

Cygwin has code for supporting things like /dev/null, /dev/tty, /dev/com1,
and other things.  There is nothing magic about any of it.  It all gets
translated into normal Windows API calls eventually.

It's certainly possible that there is something wrong somewhere in
cygwin with the handling of /dev/com1 but since this functionality is heavily
used by our gdb customers it's unlikely that there is something trivially
wrong with the emulation.

cgf

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