porting urtwn from openbsd to freebsd for RTL8188CE Driver Support

[Kevin Lo]

Kevin Lo wrote:
> I am by no means a serious wireless expert. After hours of porting/hacking,
> I came up with code what finally compiled and a basic function worked 
> for me.
> Wish I had more free time to finish it.
> 
> # dmesg |grep urtwn
> urtwn0: <vendor 0x7392 product 0x7811, class 0/0, rev 2.00/2.00, addr 3> 
> on usbus1
> urtwn0: MAC/BB RTL8188CUS, RF 6052 1T1R
> 
> # ifconfig urtwn0
> urtwn0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290
>          ether 00:1f:1f:dd:35:43
>          nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>          media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
>          status: no carrier

Oops, forgot to mention, the code is available at
http://people.freebsd.org/~kevlo/patch-urtwn

The code is ugly and not fully functional for sure. 
If anyone wants to finish it, please go ahead. :-)

	Kevin