Ralph Ronnquist wrote on 01/09/16 08:51:

My worry is that the OS_TYPE=255/255/255 condition is not distinct
enough to make the action apply exactly and only for scanners. Comparing
with udev rules, you'll find there are more than a few rules for USB
devices, and almost all of them make their classification based on the
vendor/product pair (rather than the capability declarations).
...

I'm a little bit at a loss here, as I can't find anything in the vdev tree dealing with, say, scanners or, say, mode switching USB devices. Since those are major chunks in udev rules, I'm just confused. Have I misunderstood?

I find "scanner" mentioned in the hwdb, but there is no formal classification of those other than identifying as usb (or pci); nothing classifying them as scanners (unless you'd regard the model label as such). I wish someone could explain things for me...

Ralph.
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