Ah, got it. s/ATTRS/ATTR/ in the does the trick, since that won't catch parent devices without vendor/product ID.
** Changed in: udev (Ubuntu) Status: Confirmed => Rejected -- Permissions on /dev/usblp* don't agree with cupsys https://launchpad.net/bugs/76077 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs