Beaglebone Black Bluetooth Drviers

Hello,
I’ve downloaded and installed this image onto my beaglebone black (AM3358 Debian 10.3 2020-04-06 4GB eMMC IoT Flasher - BeagleBoard)
I have a JJplus dongle (jjPlus WMI6201 WiFi+BT USB dongle - 11073 - H-10-WMI6201 - 802.11ac USB - Techship) and the bluetooth capability worked on the beaglebone without the need for any other drivers.
Does anyone know what drivers are used in this image as I am having difficulty sourcing working bluetooth drivers for this dongle. The chip set is Realtek RTL8822BU.
Many Thanks
Stephen