How can I get a wireless dongle working on Xenial Desktop latest build

[Rocklobster]

I just downloaded Ayufans latest Xenial Desktop build for the Rock64 and followed installation instructions. Everything went like clockwork and the Rock64 is now up and running. Thanks Ayufan.

My next challenge is to get my usb wireless dongle, an Edimax EW7318UG working. This dongle works perfectly with my PC Xenial setup and MS Windows so I know the dongle is working. When I plug it in to the USB2.0 port on the Rock64 the onboard LED on the dongle doesn't even flash to acknowledge that the Rock64 recognises it.

Could anyone suggest what I could do in order to get the Rock64 to recognise the wireless USB dongle. Will Xenial on the Rock64 recognise the dongle natively or will I need to build drivers for it.

[Rocklobster]

Just to add when I plug the dongle in I get the following from lsusb

Bus 002 Device 002: ID 148f:2573 Ralink Technology, Corp. RT2501/RT2573 Wireless Adapter

In the past if I was missing drivers in Ubuntu I just installed Linux Firmware Non Free but that doesn't seem to be allowed now.

Obviously I need to find a source to download the necessary driver or build and install one. Is there a way I can achieve this.