Since I have the time I wanted to try the plug-unplug fun with
firewire, but our firewire driver didn't appear to work very well.
I fixed some of the issues, but it still doesn't always rescan
the bus when something is plugged in.
I got it working well enough that I could test it with HAMMER.
The CAM code still has a memory leak somewhere (a small structure
leak when plugging and unplugging devices).
-Matt
