Re: CD writing in future Linux (stirring up a hornets' nest)

From: Albert Cahalan
Date: Tue Jan 24 2006 - 22:21:24 EST


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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