unfortunately the ENV{INTERFACE} hack does not work, since iut happens not in the device creation event.
I am using a check_ptp_camera helper script again in libgphoto2 2.3.1 (to be released) -- udev-rule for PTP class detection broken https://launchpad.net/bugs/67532 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs