USB 2.0 support in 4.8?

[Dragoncrest]

	Was out doing my research on support for USB 2.0 in Freebsd and noticed 
that 5.1 appears to have full support for USB 2.0, but 4.8 does not.  Is 
this true or am I missing something?  I'm trying to get access to the full 
speed of USB 2.0 and I'm not having any luck at it.  If it's not available 
in 4.8 I'll just leave it at that, but if it is, it means I need to do more 
research to find out why I can't access it for some reason.  Thanks for the 
info.