Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
From: tns1 <tns1 AT cox DOT net>
Subject:  Re: cant set baud rate with stty
Date:  Sun, 09 Oct 2005 10:33:37 -0700
Lines: 58
Message-ID: <dibk9c$r8$1@sea.gmane.org>
References:  <43485766 DOT 5020206 AT cox DOT net> <7C0A75E7-7DB2-4C73-A754-AD615CFD8B82 AT rehley DOT net>
Mime-Version:  1.0
Content-Type:  text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding:  7bit
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax)
In-Reply-To: <7C0A75E7-7DB2-4C73-A754-AD615CFD8B82@rehley.net>
X-IsSubscribed: yes

Peter Rehley wrote:
> 
> On Oct 8, 2005, at 4:33 PM, tns1 wrote:
> 
>> Cygwin on WinXP
> 
> What version of cygwin are you using?
> 
uname says CYGWIN_NT-5.1
cygcheck -c says 'no setup information found'
This is probably because this is a custom version of cygwin bundled with 
some cross-development tools (altera nios2). It does not live in \cygwin 
, and there are no packages, just binaries. I have already read on the 
cross-development forum that this custom version will not co-exist 
alongside a normal cygwin install, and I am wary of trying to update 
pieces of it since I wont be able to use the cygwin setup util to do so.

>>
>> I am trying to redirect the IO from a terminal app to a serial port.
>> $terminal_app > /dev/com5
>> Works but uses the wrong baud rate.
>>
I am really after '$terminal_app<>/dev/com5' but this only redirects the 
input. Maybe this is just not possible in the shell.

>> $stty /dev/com5 115200
>> Does not change the baud: 'unable to perform all requested  operations'.
>> I have tried many variations on this syntax.
>> $stty does not even show the usb adaptor I am using on com5, but it  
>> does not let me change the baud rate on the ports that it does see.
>>
> Did you try looking for this problem.....
> http://cygwin.com/ml/cygwin/2005-08/msg00485.html

That post sounds like a different problem, but I did see a post talking 
about problems setting the baud.
> 
> Try a snapshot.  You might be surprised.
> 
I installed the latest version of cygwin & coreutils (5.90-1) on a 
different machine - it gives the same result, 'unable to perform all 
requested operations'.
I noticed that setup did not automatically choose the very lastest 
versions - maybe the mirror was not up-to-date on all dependancies?. 
Anyway, I had to manually select the 5.90-1 over the 5.2.1-5

At this point I am just trying to verify that what I am trying to do 
should work. Does '$stty /dev/com1 19200' change the baud for anyone in 
a shell or a script, or am I chasing my tail? If it works, what version 
does it work for?

>> Should stty  let me change the baud in the shell?
>>
>> Where is the default baud rate I am getting established, in  windows, 
>> in cygwin, or in my usb adaptor driver?
>>
>> thanks
>>


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/