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Message-ID: <787b0d920601241923k5cde2bfcs75b89360b8313b5b@mail.gmail.com>
Date: Tue, 24 Jan 2006 22:23:00 -0500
From: Albert Cahalan <acahalan@gmail.com>
To: linux-kernel@vger.kernel.org, rlrevell@joe-job.com,
       schilling@fokus.fraunhofer.de, matthias.andree@gmx.de,
       jengelh@linux01.gwdg.de
Subject: Re: CD writing in future Linux (stirring up a hornets' nest)
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Jan Engelhardt writes:

> Where is the difference between SG_IO-on-hdx and sg0?

It's like the /dev/ttyS* and /dev/cua* situation, where
we also ended up with multiple device files. This is bad.

SG_IO-on-hdx is modern. It properly associates everything
with one device, which you may name as desired.

sg0 is useful for devices that are not disk, tape, or CD.
A decade ago, it was also the proper way to send raw SCSI
commands to other devices. For nasty compatibility reasons,
Linux still assigns /dev/sg* devices for disk, tape, and CD.
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