James Bottomley wrote:
On Wed, 2009-04-22 at 16:18 +0100, Alan Cox wrote:
Don't forget, there are ATAPI devices (some Sony CD burners and old
phase-changers come into mind) which *do* have multiple LUNs sitting
beyond the PATA port. I don't know if libata supports such setups (my
old OS/2 driver does) but one shouldn't hijack LUNs to emulate targets.
It's a long time ago since I tested it but my 5 CD changer was correctly
supported by libata (or more accurately by sr...).
Well, sr supports the discovered CD/DVD; ch is the actual changer
manager. Usually ch attaches to one LUN and sr attaches to another.
Like Alan's, if I understand him correctly, my PATA ATAPI CD changer
simply presents a bunch of addressible LUNs. I never loaded, nor seemed
to need, ch.
I should boot a current libata and see how it behaves...
Jeff
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