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Mail Archives: cygwin/2005/10/22/17:52:53

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From: Todd Rearick <trearick_news AT cox DOT net>
Subject: Re: Socket read problem on Windows XP Pro & Cygwin
Date: Sat, 22 Oct 2005 21:50:58 +0000 (UTC)
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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>
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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.

Todd





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