RE: ata4.00: failed to get Identify Device Data, Emask 0x1
From: Huang, Shane
Date: Fri Nov 16 2012 - 11:02:57 EST
> 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?
Thanks,
Shane
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