[luci] About protocols

[Oskari Rauta]

Hi.

I have written ncm protocol support for openwrt/luci.. Available at here.. With guide..
https://sites.google.com/site/variousopenwrt/huawei-e3267

And I wanted to make it a bit better. I'd like it to select interface wwan0 as default when protocol is being switched.
How can I do that? I know it's setup in model/network/proto_ncm.lua but how.. Tryied to take a peak of ppp and other protocols for this, but
still haven't found out..