From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [ACPI] Re: RFC: ACPI/scsi/libata integration and hotswap
Date: Thu, 08 Dec 2005 14:53:17 +0000
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To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Jeff Garzik <jgarzik@pobox.com>, Christoph Hellwig <hch@infradead.org>, randy_d_dunlap@linux.intel.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, acpi-devel@lists.sourceforge.net
List-Id: linux-ide@vger.kernel.org

On Iau, 2005-12-08 at 14:43 +0000, Matthew Garrett wrote:
> ACPI methods belong to SATA/PATA targets, not PCI devices. The 
> notification you get is something of the form
> 
> \SB.PCI.IDE0.SEC.MASTER


That is fine. Given struct ata_port * you can get

channel = ap->hard_port_no
pci device ptr = to_pci(ap->host_set->dev)

And from the struct ata_device *

slave = (adev->devno == 1)