linux-kernel - Re: ata4.00: failed to get Identify Device Data, Emask 0x1

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Date:	Fri, 16 Nov 2012 12:44:28 -0500
From:	Jeff Garzik <jgarzik@...ox.com>
To:	"Huang, Shane" <Shane.Huang@....com>
CC:	Aaron Lu <aaron.lu@...el.com>,
	Robert Hancock <hancockrwd@...il.com>,
	Borislav Petkov <bp@...64.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: ata4.00: failed to get Identify Device Data, Emask 0x1

On 11/16/2012 11:02 AM, Huang, Shane wrote:
>> I tried word 78 bit 5(Hardware Feature Control) which does not work,
>> it is 0 on my HDD sample with log 30h page 08h and DevSlp supported.
>>
>> Seems that word 78 bit 5 is only the sufficient condition, not the
>> essential condition. Do you guys have suggestion?
>
> Eventually I received the confirmation from the DevSlp HDD vendor,
> bit 5 should be and will be set in production drives with log 30h
> page 08h supported. So I will submit a patch to use it instead.
>
>
> Hi Jeff,
>
> I don't know when I will receive some production drives to verify
> my patch, are you okay if I submit my patch first without testing
> so as to meet kernel 3.7 bug fix window?

Yes, please do.

	Jeff




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