linux-kernel - Re: Fwd: libata extension

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Message-ID: <45F689C1.9070900@garzik.org>
Date:	Tue, 13 Mar 2007 07:23:45 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Vitaliyi <imgrey@...il.com>
CC:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: Fwd: libata extension

Vitaliyi wrote:
>> Why is the access to Control register needed?
> 
> To execute soft reset for example.
> 
>> > In the perfect case i would like to be able to execute vendor command
>> > set (reverse engineered).
>>
>> Sounds interesting. :-)
>>
>> Could you give some more details on what are you going to implement?
> 
> Reading/writing service area, uploading, downloading modules, working
> with flash etc.

SAT (aka ATA passthru) defines how to do soft-reset.

SG_IO supports the ATA_12 and ATA_16 commands which permit soft-reset 
and similar tasks.  libata supports this interface, but does not yet 
support soft-reset and similar non-comment-oriented tasks.  This would 
be the best area to add such features, though.

	Jeff



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