[clue] [tech] linux driver for old IDE chipset?

[Jim Ockers]

Collins Richey wrote:
> On Thu, Jun 9, 2011 at 3:14 PM, Jim Ockers <ockers at ockers.net> wrote:
>   
>> Hi CLUEbies,
>>
>> It is unusual for something like this to stump me but I just can't seem to
>> figure out how it is supposed to work.  I have a Linux system with the
>> following IDE controller:
>>
>>     
> . . .
>
>   
>> This is a STPC Atlas IDE from STMicroelectronics (formerly SGS Thomson
>> Microelectronics).  It is PCI id 104a:0228.
>>
>> The Linux driver used for this apparently doesn't allow or support DMA, I
>> think.  I really need to turn DMA on.
>>     
>
> Maybe I'm missing something, but ... if the device (???) and driver
> (for sure) doesn't support DMA, aren't you flirting with disaster if
> you somehow manage to enable DMA?
>
>   

The Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 device 
driver supports DMA on some chipsets.  I was thinking the problem was 
that it just didn't support DMA on this particular chipset.  Ideally 
there would be a chipset-specific device driver somewhere out there that 
I can download, which will support DMA, and then I don't have to use the 
generic Linux IDE driver.

-- 
Jim Ockers, P.Eng. (ockers at ockers.net)
Contact info: http://www.ockers.net/msi.html


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