How can I get a driver to support my USB wifi dongle

[Luke]

Just loaded my Rock 64 4G with Ayufan's Xenial desktop image and everything is working fine. I currently have it operating on a wired Ethernet connection. I plugged in my wifi dongle, an Edimax EW7318Ug but the Rock64 Xenial distribution does not appear to have a driver that supports it. On my PC version of Xenial I have in the past just added Linux Firmware Non Free to resolve this problem. This appears to be not possible in Xenial now.

I issued the lsusb command and this is the following output.

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

The good news is the Rock64 recognises the dongle but I was wondering how I could go about adding a driver to support. I'd appreciate any help pointing me in the right direction here.

*I accidentally posted the original query in the Pine64 section but couldn't move it*

Hey, have you tried this?