Mathieu Fluhr wrote:
On Wed, 2006-11-15 at 02:24 +0900, Tejun Heo wrote:
... and the problem is not in accessing the device itself (this is
working like a charm) but understanding why a SCSI READ(10) cmd
sometimes fails as a ATA-padded READ(10) cmd - as discribed in the
Annex
A of the MMC-5 spec - ALWAYS works.
-> I would suspect somehow a synchronisation problem somehow in the
translation of SCSI to ATA command...
Can you try the attached patch and see if anything changes?
The patch _seems_ to solve my problem. I am just really astonished when
I read the diff file :D. Can I expect that it will be merged to the
official kernel sources ?
It seems that some devices choke when the bytes after CDB contain
garbage. I seem to recall that I read somewhere ATAPI device require
left command bytes cleared to zero but I can't find it anywhere now.
Maybe I'm just imagining. Anyways, yeah, I'll push it to upstream.
--
tejun
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