My temporary solution was to change the pattern for one of the devices.
My problematic device is a rt2500-based PCI wireless card. I put the
following in a file in /etc/modprobe.d/ :
options rt2500 ifname=wlan%d
That renamed my wireless to wlan0, instead of jumping between eth0 and
eth1.
Maybe something similar is possible with the drivers you're using?
I tried this:
options eth1394 ifname=ieee%d
but it didn't work. I actually think the ifname= parameter is
specific to the rt2500 driver, and I couldn't see that the eth1394
driver had something similar. But it was worth a shot anyway, I'm
getting frustrated...:p
Cheers,
Ketil