linux-kernel - Re: libata/PATA: GPCMD_SET_STREAMING via SG

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Message-ID: <473B1B83.9020103@rtr.ca>
Date:	Wed, 14 Nov 2007 11:00:03 -0500
From:	Mark Lord <lkml@....ca>
To:	Sebastian Kemper <sebastian_ml@....net>
Cc:	Mark Lord <liml@....ca>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: libata/PATA: GPCMD_SET_STREAMING via SG_IO does nothing

Sebastian Kemper wrote:
> On Wed, Nov 14, 2007 at 10:09:22AM -0500, Mark Lord wrote:
>> I think the problem here might be that libata doesn't actually support 
>> SG_IO
>> for ATAPI drives prior to 2.6.24 (ugh).
>>
>> Try it with a 2.6.24-rc* kernel from kernel.org, or back-patch the ATA_16
>> SG_IO support into your older kernel.
> 
> Hi Mark,
> 
> I already tried 2.6.24-rc2 and it didn't work, see my last reply:
> http://marc.info/?l=linux-kernel&m=119504244805467&w=2
..
Yeah, I'm a bit drowsy this morning -- the set speed command
doesn't use ATA_16, so it should work with any kernel.

I'll try it here soon-ish, since I need to update "hdparm -E" for libata anyway.

Cheers
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