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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!howland.erols.net!surfnet.nl!tudelft.nl!elektron.et.tudelft.nl!news From: Joost Nieuwenhuijse <joostn@nedernet.nl> Newsgroups: comp.unix.bsd.bsdi.misc Subject: Port I/O (parallel port) on 486 - HOW? Date: Thu, 14 Nov 1996 19:09:19 +0100 Organization: Delft University of Technology, Dept. of Electrical Engineering Lines: 30 Message-ID: <328B604F.1B47@nedernet.nl> NNTP-Posting-Host: joost.et.tudelft.nl Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0Gold (Win95; I) Hi, I'm writing an application that needs to access the parallel port of a 486 PC directly (for controlling the 8 I/O lines of this port). I've managed to get it working on my own Linux PC, but it really should run on a BSDI (2.0.1) system. I must admit that I have very little experience with BSD. Here's how I did it in Linux: #include <unistd.h> #include <asm/io.h> r = ioperm (IOBASE,3,1); outb (data, PORT); data = inb (PORT); with PORT and IOBASE being port addresses for the printer port. Apparently BSDI doesn't know inb and outb, and <asm/io.h> isn't present either. There is a man page on 'ioport' but it doesn't make things clearer to me. Do I have to write assembler to get it working? Hope not. If anybody knows, please help me, I'm really stuck. Best regards, Joost Nieuwenhuijse