Hello! I have a question about how I can add a usbtv support in openwrt kernel. I have Easycap usb Audio-video grabber with utv007 chip. And I have a router with openwrt (3.18.20 kernel).
I'm added an usb support, openwrt detect this device:

root@OpenWrt:~# lsusb
Bus 002 Device 004: ID 1b71:3002

But, I can't see anything in

root@OpenWrt:~# ls /dev/video*
ls: /dev/video*: No such file or directory

How I can force to work this device?
If I correctly understand, drivers of utv007 chip is already build-in in Linux kernel 3.13 and up (//linuxtv.org/wiki/index.php/Easycap#USBTV007_EasyCAP - Proof link), but why I can't see that in my 3.18.20?
Thank you!