linux-kernel - Re: Problem with ata layer in 2.6.24

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Message-ID: <479FC29A.1000207@rtr.ca>
Date:	Tue, 29 Jan 2008 19:19:38 -0500
From:	Mark Lord <liml@....ca>
To:	Gene Heskett <gene.heskett@...il.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Mikael Pettersson <mikpe@...uu.se>,
	Richard Heck <rgheck@...jweil.com>,
	Daniel Barkalow <barkalow@...ervon.org>,
	Zan Lynx <zlynx@....org>,
	Calvin Walton <calvin.walton@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux ide Mailing list <linux-ide@...r.kernel.org>
Subject: Re: Problem with ata layer in 2.6.24

Gene Heskett wrote:
>
> I doubt libata has that capability now, or ever will, cuz these ide/atapi 
> devices are generally dumber than rocks about that.  But any device claiming 
> to be scsi-II is supposed to be able to do those sorts of things while the 
> cpu is off crunching numbers for BOINC or whatever.
..

The CD/DVD drives all all "MMC" devices internally, which means they speak
a SCSI command protocol.  Regardless of the electrical or optical interface.

Linux is software, and the software protocol is exactly the same for them,
no matter what the cable/bus type happens to be.

Cheers
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