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

[Christoph Hellwig]

On Mon, Jan 30, 2006 at 01:04:08PM +0100, Matthias Andree wrote:
> Why is it a *kernel* task to invent SCSI identifier for a non-SCSI
> transport that does not have such identifiers, in addition to the device
> name? libscg is already doing it for /dev/hd* and /dev/pg*.
> How about USB or Firewire or SATA? Do they have ID or LUN?

Nothing but SPI (parallel scsi) has a target id.  Everything that broadly
falls under SAM has luns.  Because SPI is dying transport the scsi
midlayer will get rid of having a mandatory target id mid-term.  Relying
on the target id to have any useful meaning is dangerous, it doesn't
have a really useful meaning on anything but SPI.

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