I have a problem now with Fedora that I hope does not carry over to Linuxmce. I have a Hauppage PVR-350 as well as a 4-Channel PCI Capture Card. Sometimes on reboot it gets remapped to /dev/video0 instead of /dev/video1 that Zoneminder is setup to use.
Does lmce use the bus address to prevent multiple tuner cards from taking it's spot on reboot or the same v4l mappings?
In similar situation, I always try to persuade on or other device to go on other device numbers. In such combo, I let bttv card to take first video devices and then put this :
options ivtv ivtv_first_minor=6
into /etc/modprobe.d/ivtv - so my pvr 500 takes devices from 6 and up...