I've spent the last few hours to fighting udev. It just wouldn't do what it was being told to. After taking many different paths, it so happens that I had named the rules file 25-lfs-rules instead of 25-lfs.rules. This fixes the permissions so people can now write to /dev/null (and other stuff). It doesn't sound very exciting, but considering that this happens for every node, it's something we really should have working.

Now that I have this system up, I've no excuse for not helping out with the ACX100/111 driver. The latest version breaks horribly, but it might just be my setup. I'll see when it breaks.