*BSD News Article 29163


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From: bob@nemesis.ps.uci.edu (bob prohaska )
Newsgroups: comp.os.386bsd.development
Subject: Re: DMA bounce-buffers now implemented in FreeBSD-current
Date: 4 Apr 1994 18:30:49 GMT
Organization: University of California, Irvine
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Distribution: world
Message-ID: <2npmcp$ste@news.service.uci.edu>
References: <JKH.94Mar25161128@sentnl.ilo.dec.com> <JKH.94Mar27000401@whisker.hubbard.ie> <JKH.94Apr4023920@whisker.hubbard.ie>
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Can a BT 445s revision C controller be updated?

thanks,

bob
Jordan K. Hubbard (jkh@whisker.hubbard.ie) wrote:
: In article <Cnor2s.15w@aeon.in-berlin.de> thomas@aeon.in-berlin.de (Thomas Wolfram) writes:
:    Could someone please explain what "broken DMA" of Bt445S means exactly?
:    Does it mean it acts like a ISA busmaster DMA controller (16MB address
:    space only) or what?

: Right!  That's exactly it.  Revision D or E versions of this controller don't 
: have the problem.

: 					Jordan
: --
: Jordan K. Hubbard	FreeBSD core team	Raving lunatic