USB Bluetooth adapter (CSR8510) not working

I have the CSR8510 USB Bluetooth adapter running with Lakka v2.1.1 on a ROCK64. I have enabled Services > Bluetooh Enable but my joypad is not picking up the Lakka box.

A bt keyboard and mouse also do not pick up the Lakka box.

Google and a search of this forum have not returned recent, relevant information.

Is there an experienced technical user who has been able to successfully get a CSR8510 Bluetooth adapter running with the latest version of Lakka (2.1.1) ?

Thanks for your help.

Please provide the output of lsub.

Thank you.