From owner-freebsd-current  Mon Sep 23  4:15:39 2002
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From: Soeren Schmidt <sos@spider.deepcore.dk>
Message-Id: <200209231115.g8NBFN7E090961@spider.deepcore.dk>
Subject: Re: Dma via Promise ATA 100/133 TX2
In-Reply-To: <20020923104819.GA1863@tiiu.internal>
To: kalts@estpak.ee
Date: Mon, 23 Sep 2002 13:15:23 +0200 (CEST)
Cc: freebsd-current@FreeBSD.ORG
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It seems Vallo Kallaste wrote:
> > > When enabling Wdma2/Udma2? the system hangs immediately. This is the
> > > case with burncd as well as with cdrecord.
> > 
> > That should work, provided your burners support DMA properly.
> > What make are those burners ? dmesg please!!
> 
> Back to the 4.5-something I had problems with the Plextor CD-RW
> drive, Promise ATA-66 and DMA. We had email discussion about it and
> you claimed that Promise support for ATAPI DMA is almost missing,
> but I guess you have better things to remember. The combo did work
> well with PIO4. Sounds similar.

The old Promise controllers, pre TX2, does not support ATAPI DMA,
however the TX2 (and later) works as advertised...

-Søren

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