[...] > Sure, you can't *force* OEMs to supply a given ACPI device, but you > can certainly say "if you want this functionality, supply INT3401 > devices." That's what you do with PNP0A03 (PCI host bridges), for > example. If an OEM doesn't supply PNP0A03 devices, the system can > boot just fine as long as you don't need PCI. > > This model of using the PCI IDs forces OS vendors to release updates > for every new platform. I guess you must have considered that and > decided whatever benefit you're getting was worth the cost. Not worth cost. This is a pain. Every release we end up adding a single line change to many drivers adding a PCI device id. Since there is no unique class_mask for PCI device for these devices, we need to add device_id for each generation even if there is no change. Instead if we have some feature to say don't enumerate for PCI device id < X and a black list, it will save lot of work. Thanks, Srinivas
