Re: [PATCH #upstream-fixes] libahci: fix result_tf handling after an ATA PIO data-in command

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On 10/15/2010 02:24 AM, Robert Hancock wrote:
>> I'm not certain, but doesn't this problem also affect DMA_TO_DEVICE PIO
>> commands?
>> Eg. SECURITY_ERASE_PREPARE and PIO_WRITE ?
> 
> No, PIO data-out commands send a D2H register FIS after completion. It
> appears that PIO data-in is the only special case.

Yeap, it's an exception only for PIO data-in's.

Thanks.

-- 
tejun
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