Date: Fri, 17 Feb 2006 19:12:52 +0100
From: Matthias Andree <matthias.andree@gmx.de>
To: "D. Hazelton" <dhazelton@enter.net>
Cc: Joerg Schilling <schilling@fokus.fraunhofer.de>,
       linux-kernel@vger.kernel.org
Subject: Re: CD writing in future Linux (stirring up a hornets' nest)
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	Joerg Schilling <schilling@fokus.fraunhofer.de>,
	linux-kernel@vger.kernel.org
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On Fri, 17 Feb 2006, D. Hazelton wrote:

> Says you. Since the SCSI system via /dev/hd* was just added in, IIRC, the 2.5 
> series kernel - at the same time ide-scsi was deprecated access via SG_IO 
> on /dev/hd* is the new method and not deprecated.

This is all information that libscg does not need to know. There are
only two models:

1. the old sg2 model before SG_IO was available, was to use write() and
read() on a /dev/sg* node.

2. the new sg3 model is do SG_IO on any device node no matter if /dev/hd,
/dev/sg or perhaps /dev/foobaz42 next year. /dev/sg* happened to be the
first to implement this, others followed suit, and more to come.

-- 
Matthias Andree
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