Date: Thu, 11 Jan 1996 08:14:13 -0500 (EST) From: Peter Dufault <dufault@hda.com> To: charlie_conklin@il.us.swissbank.com (Charlie Conklin) Cc: questions@FreeBSD.ORG Subject: Re: lpt driver question Message-ID: <199601111314.IAA02813@hda.com> In-Reply-To: <9601111144.AA01349@ln1d279nwk> from "Charlie Conklin" at Jan 11, 96 11:44:15 am
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> I have a simple piece of hardware that sits on the PC printer port. > I also have some C source code that compiles and works, and is used > to talk to that hardware. The code looks fairly simple, basically just > poking a few values at an io port. > > I am now faced with the task of making the hardware work under > FreeBSD instead of windows, and I realize that I do not have the > foggiest notion of how to proceed! :-( Does anyone have any ideas, > or have some useful direction to point me in? Can I use the lpt > driver to do this easily? Open /dev/io and use outb to access the port. outb is in <machine/cpufunc.h>. Once you've opened /dev/io you can read and write to any port. There is no man page except for -current. -- Peter Dufault Real Time Machine Control and Simulation HD Associates, Inc. Voice: 508 433 6936 dufault@hda.com Fax: 508 433 5267
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