Messages in this thread | | | Date | Mon, 9 Feb 2015 13:15:38 +0200 | From | Mika Westerberg <> | Subject | Re: [V3 PATCH 1/2] ACPI / scan: Add support for ACPI _CLS device matching |
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On Mon, Feb 09, 2015 at 12:02:43AM +0100, Rafael J. Wysocki wrote: > On Monday, February 09, 2015 12:20:03 AM Suravee Suthikulpanit wrote: > > Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver > > acpi_match_table to match devices. However, for generic drivers, we do > > not want to list _HID for all supported devices, and some device classes > > do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS, > > which specifies PCI-defined class code (i.e. base-class, subclass and > > programming interface). > > > > This patch adds support for matching ACPI devices using the _CLS method. > > > > Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> > > Greg, Mika, any problems with this?
Is there some specific reason why this cannot be done in similar way than PCI already does?
In other words, stuff _CLS fields to struct acpi_device_id and make match functions match against those if they are != 0.
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