PySerial rereads its own data

[Cliff Wells]

On Tue, 2003-06-03 at 10:54, Cliff Wells wrote:
> On Mon, 2003-06-02 at 16:45, Peter Hansen wrote:
> > Cliff Wells wrote:
> > > 
> > > I'm trying to write an app that talks to a bit of hardware on the serial
> > > port.  As a test setup, I've got a null modem cable linking /dev/ttyS0
> > > and /dev/ttyS1 on the same PC.
> > [snip]
> > > 'hello' correctly appears on the console running 'cat /dev/ttyS1'.
> > > 
> > > My question is this:  why do I get back the data I just wrote?  More to
> > > the point, how do I stop it?
> > 
> > Maybe check (or post?) the output of "stty" for /dev/ttyS0 on the
> > sending machine?  Echoing?
> 
> I was thinking the same thing after I got home last night, but that
> doesn't appear to be it:

Go figure.  For some reason 'cat' must do something odd.  If I run
anything but cat, it works as expected.  

That's what I get for just picking the "simplest tool" that could
*never* do anything unexpected...

-- 
Cliff Wells, Software Engineer
Logiplex Corporation (www.logiplex.net)
(503) 978-6726  (800) 735-0555