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From:	"Richard Hellicar (EML)" <Rick DOT Hellicar AT eml DOT ericsson DOT se>
To:	"'Frank Wagner'" <f DOT wagner AT gmx DOT net>, cygwin AT sourceware DOT cygnus DOT com
Subject:	RE: accessing serial ports with cygwin
Date:	Tue, 1 Aug 2000 10:40:13 +0200
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X-OriginalArrivalTime:	01 Aug 2000 08:40:24.0371 (UTC) FILETIME=[2296E830:01BFFB94]

 
> Hello,
> 
> I try to access the serial ports with cygwin under Windows95.
> To do this I don't know wether I have to use the functins that are
> included in
> dos.h and conio.h that is part of the mingw system or wether there are
> equal
> header files that belong to cygwin directly.
> Is there any documentation that describes the funktions included in the
> header files that come with the cygwin distribution.
> 

There's a very helpful document called "Serial Programming Guide for POSIX Operating Systems" (5th Edition, Michael Sweet http://www.easysw.com/~mike/serial/index.html).  You have to change the device names to com1, etc., but it works well (at least in Windows NT 4).  I seem to remember having a couple of problems - I think that ioctl() didn't report the right number of bytes in the input buffer, but I could be remembering it wrong.

Rick


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