As of kernel 2.6.14, the ieee1394 subsystem passes MODALIAS variables to kernel events (that are received by udev). This allows to get rid of the old hotplug-like agent that I used in udev in 2006.0, because we can now use modprobe $ENV{MODALIAS} instead of complicated and slow shell scripts.

So, we'll switch to a more classical way of handling hotplug events for ieee1394, and that will allow among others to use the blacklist keyword for eth1394 in /etc/modprobe.conf (even if it shouldn't be needed since our dynamic interface naming will be perfect).