Date: Wed, 5 May 1999 20:47:09 -0400 (EDT) From: Mark Turpin <mturpin@saturn.spel.com> To: Doug Rabson <dfr@nlsystems.com> Cc: Alpha Mailing list <alpha@freebsd.org> Subject: Re: Low level parallel I/O? Message-ID: <Pine.BSF.4.05.9905052040520.6834-100000@saturn.spel.com> In-Reply-To: <Pine.BSF.4.05.9905060045420.411-100000@herring.nlsystems.com>
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Is there something additional I need to do to use inx/outx on the alpha? I tried the same program from my Intel machine and it errors with: undefined reference to 'outb' Sound like I need to add some command line options to my cc?!? Thanks Mark On Thu, 6 May 1999, Doug Rabson wrote: > On Wed, 5 May 1999, Mark Turpin wrote: > > > > > Does anyone know how to find the IO address of the parallel port on a > > multia? > > > > Also is it possible, on an alpha, to do > > > > outb(0x378, 0xFF); > > ^^^^^----- Or whatever address > > > > to set the parallel port data lines high? > > It should be in the normal place (i.e. 0x378). You can use inx/outx in > both kernel and user programs. For user programs, you have to use the > libio library. Use the ioperm() function to enable access to the required > ports and then inx/outx to access the port. > > -- > Doug Rabson Mail: dfr@nlsystems.com > Nonlinear Systems Ltd. Phone: +44 181 442 9037 > > > ----------------------------------------------------------------------------- Mark Turpin | Consulting - Training - Network Installation Systems Engineer | Main Street Technology Centre | http://www.MainStreetTech.com ----------------------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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