Hello Richard,
Thank you for your message.
We do not currently consider Linux to be supported with the USB-WIFINT. The drivers for the adapter are usually integrated into the Linux kernel, however the driver implementation on Linux is not good.
There are some open-source drivers for the RTL8188EUS chipset in the adapter that you could try (search GitHub), but they aren’t something we support, nor can we speak to their functionality.
I’m sorry if this isn’t the answer you were hoping for, but I hope that this helps.