On Thu, Dec 08, 2005 at 02:30:57PM +0000, Alan Cox wrote:
> SCSI/libata can go easily from ata channel to pci device to device. The
> rest of the logic belongs outside of scsi/libata.
ACPI methods belong to SATA/PATA targets, not PCI devices. The
notification you get is something of the form
\SB.PCI.IDE0.SEC.MASTER
on sensible devices, and
\SB.C043.C438.C222.C223
on anything from HP[1]. Somehow, you have to get from there to a
specific SCSI host and target. By far the easiest way of doing that is
to register them at device add time, which needs a small amount of
cooperation from the SCSI or libata layers. And to register the
notifications in the first place, you need to know the ACPI handles.
[1] Thanks, HP
--
Matthew Garrett | [email protected]
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