On Wednesday 01 October 2014 12:13:09 Mika Westerberg wrote: > > > Regarding the MODULE_DEVICE_TABLE, I suspect the above won't work the > > way you are hoping for, because once you get to dozens or hundreds of > > drivers doing this, each device will show up with the same string, > > so udev will try to load all the modules that list "PRP0001". That > > doesn't look right. With the code from patch 3, you can probably drop > > the acpi MODULE_DEVICE_TABLE() entirely and get the correct behavior. > > It actually works like this now: > > # cd /sys/bus/platform/devices/PRP0001\:00/ > DRIVER=leds-gpio > MODALIAS=of:Nprp0001TacpiCgpio-leds > > # cat modalias > of:Nprp0001TacpiCgpio-leds > > In other words the modalias changes to be of:Nprp0001Tacpi, e.g > name=prp0001, type=acpi and then list of compatible values. > > Udev then loads only module that matches the modalias so it should not > load everything listing PRP0001 in their MODULE_DEVICE_TABLE(). I'm not completely following yet. I can see how this works now, but how is this better than just using the existing modalias for OF? Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
