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To: Harlan Stenn <Harlan.Stenn@pfcs.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: Bidirectional parallel port? 
In-Reply-To: Your message of "Wed, 08 May 1996 02:03:14 PDT."
             <3845.831549794@mumps.pfcs.com> 
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Date: Wed, 8 May 1996 08:37:38 PDT
From: "Marty Leisner" <leisner@sdsp.mc.xerox.com>
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> I gather from the docs that the parallel port (/dev/lpt0) is output only.
> 
> However, I gather that the parallel port can be used for IP, which means
> that it can also be bidirectional.
> 
> What's the story?
> 
> I haven't been able to get bidirectional I/O to the port with a
> PostScript printer.
> 
> H

I'm very interested in hearing how to do this...

While newer parallel ports are supposed to support bidirectionality, I'd like
to see a working implementation (I want to be able to do:

	cat </dev/pp 
in one window

and
	cat job.ps >/dev/pp
in the other...


-- 
marty
leisner@sdsp.mc.xerox.com  
Member of the League for Programming Freedom