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DragonFly users List (threaded) for 2005-12
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Re: DMA Mode


From: joerg@xxxxxxxxxxxxxxxxx
Date: Sat, 17 Dec 2005 13:35:25 +0100
Mail-followup-to: users@crater.dragonflybsd.org

On Fri, Dec 16, 2005 at 08:06:44PM -0500, Ezra Drummond wrote:
> Hi
> I have a Dell inspiron 6000 laptop, which i am trying to set dma mode
> for the dvd+rw drive. I add "ata.atapi_dma=1" to loader.conf but the
> system just ignore it. Any hints would be very much appreciated.
> ps: FreeBSD 6.0 set dma automatically without me adding anything to
> loader.conf.

Yes, we know. It was a lengthy debatte about the merits, since enough
chipsets are broken. Like Sascha wrote, the correct hint is
hw.ata.atapi_dma. You can also use atacontrol mode, keep in mind that
values for both channels have to be specified.

Joerg



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