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Date: Sun, 23 Oct 2005 09:38:20 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Socket read problem on Windows XP Pro & Cygwin
Message-ID: <20051023073820.GF27476@calimero.vinschen.de>
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References: <20051022035348.RADA2767.eastrmmtao03.cox.net@[172.18.52.8]> <4359C50C DOT 76649CA1 AT dessent DOT net> <loom DOT 20051022T083200-857 AT post DOT gmane DOT org> <4359EB14 DOT E677A317 AT dessent DOT net> <loom DOT 20051022T153140-747 AT post DOT gmane DOT org> <435AAAB9 DOT 27CDE133 AT dessent DOT net> <loom DOT 20051022T234629-996 AT post DOT gmane DOT org>
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On Oct 22 21:50, Todd Rearick wrote:
> Brian Dessent <brian <at> dessent.net> writes:
> 
> > What I was trying to emphasize is that passing "COM4" to open() in a
> > Cygwin program sets you up for a world of hurt...
> > 
> > Brian
> 
> It's even worse than you think.  In this case...COM4 is not even a real serial
> port...but a "virtual" serial port constructed by a USB driver.  Fortunately for
> me...because it's not a real port...I don't actually need to configure it at
> all....
> 
> I'm actually quite impressed that I can even open COM ports and write to them
> and it all seems to work OK via cygwin.  Thanks for the warning and the help.

You should nevertheless use /dev/com4 or /dev/ttyS3.  I might be wrong
but it still looks like you don't quite see what Brian was up to.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat, Inc.

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