we are developing an android App in visual studio using xamarin on Android OS 5.0 that needs to communicate via USB to our host application. We are currently working using ADB for the connection, however we cannot use ADB for communications in the final solution.
We will be connecting multiple Android devices per windows 10 PC via a USB hub (which also charges the devices).
Data will be encrypted between the server and the tablet, so security of connection is not essential, but would be nice.
Full Source code and ongoing maintenance (please quote per hour costs for support) is required.