linux-kernel - Re: IDE DMA doesn't work with pata

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Message-ID: <470EA1FC.4040604@igowo.de>
Date:	Fri, 12 Oct 2007 00:21:48 +0200
From:	Philipp Wollermann <philipp@...wo.de>
To:	Helge Hafting <helge.hafting@...el.hist.no>
CC:	linux-kernel@...r.kernel.org
Subject: Re: IDE DMA doesn't work with pata_via and compact flash card

Helge Hafting wrote:
> philipp@...wo.de wrote:
>>> Does your CF/IDE adapter support DMA ?
>>
>> Is there some way I can figure it out? I'll have a deeper look on the
>> datasheet when I'm home again later, but I'm rather sure there wasn't
>> anything mentioning supporting data transfer modes..
>>   
> Some take care to document this. I checked dma capability
> before bying mine. mini-itx.com seems to get this right.

I have returned the adapter card, it indeed didn't support DMA (I 
checked the pins on the board, pin 21 and 29 are necessary for DMA 
support and they weren't wired). I bought a new one which explicitly 
supports DMA and will report when it ships. :)

Best regards,
Philipp
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