From: markus reichelt <ml@mareichelt.de>
To: linux-kernel@vger.kernel.org
Subject: Re: Compact Flash Serial ATA patch
Date: Tue, 23 May 2006 22:47:46 +0200 [thread overview]
Message-ID: <20060523204746.GD9829@dantooine> (raw)
In-Reply-To: <1148410590.25255.115.camel@localhost.localdomain>
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Maw, 2006-05-23 at 04:16 -0600, Russell McConnachie wrote:
> > I am not exactly a programmer, I'm sure this can be written much
> > better but for anyone who may run into a similar problem with
> > compact flash.
>
> Some CF adapters do not include all the neccessary pins for DMA
> because they were designed to be cheap before the idea of CF using
> DMA seemed realistic.
Some CF adapters I've seen included all necessary pins but the pin
connections for DMA were missing. Someone at a slackware mailing list
was having the same problem, and if I recall correctly (better check
specs though) it can be fixed quite easily:
CF pin 44: disconnect from +V, connect to IDE pin 29.
CF pin 43: connect to IDE pin 21.
Typical transfer rates increased to about 10-12 MB/s
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next prev parent reply other threads:[~2006-05-23 20:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 10:16 Compact Flash Serial ATA patch Russell McConnachie
2006-05-23 17:23 ` Matthew Dharm
2006-05-23 10:41 ` Russell McConnachie
2006-05-23 18:54 ` Alan Cox
2006-05-23 18:56 ` Alan Cox
2006-05-23 20:47 ` markus reichelt [this message]
2006-05-24 7:14 ` Helge Hafting
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