I wrote an app that is triggering a Sony qx smartphone attachable camera over wifi. However I need to transfer the images off the phone over another local network in real time.
Most of android tv boxes can use wifi and ethernet together. In my device, i can enable ethernet from this path --- Settings -> More ... > Ethernet --- But your device wont have a menu like that as i understand. So you should make an app to do that. This application needs to access some system specific resources so your device needs to be rooted or application needs to signed with system signature. Also this topic can help you link