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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!swidir.switch.ch!news.rccn.net!morgana.mat.uc.pt!usenet From: Filipe Araujo <filipius@mercurio.uc.pt> Newsgroups: comp.unix.bsd.freebsd.misc Subject: DMA Date: Fri, 15 Nov 1996 16:12:33 +0100 Organization: Dep. Eng. Inform=?iso-8859-1?Q?=E1tica - Universidade de Coimbra - PORTUGAL?= Lines: 17 Message-ID: <328C8861.48A3@mercurio.uc.pt> NNTP-Posting-Host: calvin.dei.uc.pt Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 2.01Gold (Win95; I) Hi, I'm writing a device driver for a network device on FreeBSD, but I don't know how to program DMA. Could you please point me some places from where I could learn how to do it? I'm asking for an http site or a device driver's source code or something that could be helpful. I read the device drivers' source code for some pci devices (directory /sys/pci), but I wasn't able to understand where and how did they do it. Thank you very much. Filipe Machado de Araujo Departamento de Engenharia de Informatica Faculdade de Ciencias e Tecnologia Universidade de Coimbra Portugal