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SubjectRe: Putting PCI-class/vendor/deviceinfo into source of PCI-drivers
Hi,

> To avoid this and to be able to create automatic kernel configs, one
> solution could be to add more module info into the source of pci-capable
> drivers (e.g. 3c59x.c from Donald Becker):
>
> MODULE_PCICLASS("0200");
> MODULE_PCIVENDOR("10b7");
> MODULE_PCIDEVICE("5900,5950,5951,5952,5900,9000,9001,9005,9055");
>
> Then scripts could look for a driver class "0200" (Ethernet controller)
> from vendor "10b7" (3Com) which supports the cards shown in PCIDEVICE
>
> If there are two or three (or more) Vendors with same chips (like
> in the Tulip-driver) the vendor string can look like this:
>
> MODULE_PCIVENDOR("1011,11ad,10d9");
>
> Any comments to that?

I'm preparing a very similar mechanism for my PCI hotplug code. It should
work this way:

o Each driver contains a list of supported vendor+device pairs (likely
a more general ID's, so that they can be used for ISAPnP, PCMCIA and
CardBus as well).
o Depmod extracts these data and stores them in modules.dep.
o If a new device gets inserted, the kernel looks up its ID in all currently
loaded drivers and asks them if they want to handle the device.
o If no driver is found and kmod is enabled, modprobe gets called to find
a driver corresponding to the device ID according to modules.dep and load
the appropriate module.

Maybe a similar mechanism could be used for USB as well.

Have a nice fortnight
--
Martin `MJ' Mares <mj@ucw.cz> <mj@suse.cz> http://atrey.karlin.mff.cuni.cz/~mj/
"Everything counts in large amounts." -- Depeche Mode

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