4acf4a68c9
all the LKM load/unload junk, and don't forget to register the SYSINIT so that the cdevsw entry is attached. BTW: I think the way it builds it's /dev nodes on the fly as an LKM with vnode ops is kinda cute - I guess that'd be one way to solve the devfs persistance problems.. :-) (ie: have the drivers make the nodes in /dev on disk directly if they are missing, but leave them alone if present).
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