*BSD News Article 27676


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From: ivie@cc.usu.edu
Newsgroups: comp.os.386bsd.questions
Subject: Re: DRQ for wd.c
Message-ID: <1994Feb22.093144.11501@cc.usu.edu>
Date: 22 Feb 94 09:31:44 MDT
References: <2kb77b$so6@explorer.clark.net>
Organization: Utah State University
Lines: 10

In article <2kb77b$so6@explorer.clark.net>, ack@clark.net (Eric S. Hvozda) writes:
> I was under the impression that IDE disks are capable of DMA.  Is this true?

No. A drive manufacturer is free to build a drive that does DMA, but I don't
know of any that do. Problem is that (aside from incompatibility) on an
actual, real IBM AT REP INSW is faster than DMA.
-- 
----------------+------------------------------------------------------
Roger Ivie      | Don't think of it as a 'new' computer, think of it as
ivie@cc.usu.edu |     'obsolete-ready'