bluetooth stack ported from NetBSD

[Maksim Yevmenkin]

> Subj.
> http://forum.lissyara.su/viewtopic.php?t=9100&st=0&sk=t&sd=a&start=50#p79571
> may be very useful - simply and think than realized in FreeBSв

interesting. i'm actually kinda working in the direction of
convergence netbsd and freebsd bluetooth stacks. user space mostly.
i'm curious what is "hard" in freebsd bluetooth stack and why netbsd
stack is "more simple"?

thanks,
max