Android emulator USB availability? Has anyone tried android-x86?

The project I am working on involves trying to use USB connection from smartphone to a raspberry pi.

I can get the package at https://github.com/nonolith/node-usb working when I connect a real phone to the RPI.

But when I do this by plugging in the mac, even when running the emulator, I get nothing.

In the research I have done, it indicates emulators don’t support USB functions.

Some pages have suggested trying http://www.android-x86.org/ in a virtual env in order to access USB.

Has anyone tried this or have any other advice?

Thank you