How to stream video using LinkIt Smart 7688 Duo and a USB webcam

This is a quick summary of how to stream video using a USB webcam attached to LinkIt Smart 7688 Duo. The webcam used is Logitech C905.

LinkIt Smart 7688 Duo - how to manually add modules to OpenWRT build

I followed the instructions at https://github.com/MediaTek-Labs/linkit-smart-7688-feed and https://forum.labs.mediatek.com/en/t/adventures-in-building-openwrt-for-linkit7688/258 to compile firmware and installed the new firmware on my LinkIt Smart 7688 Duo successfully.

root@mylinkit:~# uname -r
3.18.44

How to use Ubuntu to build C/C++ programs that run on LinkIt Smart 7688 Duo - Method 2

This post is about how to use Ubuntu to cross-compile C/C++ programs that run on LinkIt Smart 7688 Duo running OpenWRT Chaos Calmer 15.05.1 r49203 .

It's assumed that the SDK has been downloaded and installed on the Ubuntu machine. If it hasn't been installed, please refer to http://wei48221.blogspot.tw/2017/05/linkit-smart-7688-7688-duo-using.html for instructions on how to download and install it.

Note, the method described below builds an executable file that can be executed directly by using the "./filename" command.

How to use Ubuntu to build C/C++ programs that run on LinkIt Smart 7688 Duo - Method 1

This post is based on https://docs.labs.mediatek.com/resource/linkit-smart-7688/en/tutorials/c-c++-programming/using-openwrt-sdk-to-build-c-c++-programs with additional info. added from following it.

Note, The method described below uses makefile to build an *.ipk file that could be installed by using the "opkg install filename" command.

Environment:

Working Computer: Windows 8.1.
Cross Compiling Platform: Ubuntu Linux 16.04.2 on ThinkPad-Edge-E420s.

Target:

LinkIt Smart 7688 Duo, OpenWRT Chaos Calmer 15.05.1 r49203