Re: [PATCH 3/5] ata: Add TRIM infrastructure

From: Matthew Wilcox
Date: Thu Apr 02 2009 - 12:49:45 EST


On Thu, Apr 02, 2009 at 08:32:56PM +0400, Sergei Shtylyov wrote:
> Matthew Wilcox wrote:
>
>>> I wonder where to read about the word 169 and commnand 0x06...
>>> what's it all about?
>
>> It's in d2015r1-ATAATAPI_Command_Set_-_2_ACS-2.pdf which can be found on
>> the t13 website.
>
> But since neither ATA/PI-7 nor ATA/PI-8 mention neither the word nor
> command, why your validity check requires only ATA/PI-7+ compliance?

Because there are ATA-7 devices which implement this feature.
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