How to add Realtek 8822BU driver to Lakka?

nelsonwcf · 28 February 2025 15:19

I’m trying to create an emulation console using an old Rock64 SBC. I successfully installed Lakka on the emmc card using the dev version for Rock64. Now I’m trying to connect my Xbox One (w/ bluetooth) to Lakka. The issue here is that Rock64 doesn’t have built-in Bluetooth and I’m trying to use a Wifi + Bluetooth dongle Realtek 8822BU, which Lakka doesn’t recognize. So I’m trying to install the drivers as modules but most of the tools needed are missing in the ROM and librelec has no package managers to do that. Is there any way short of creating a Linux environment for cross-compiling the needed software for Lakka to install the needed drivers?

gouchi · 28 February 2025 15:22

Hi,

Can you give the output of lsusb when your dongle is connected ?

Thank you.

vudiq · 2 March 2025 17:33

You can use the build system to compile the module. Just create a package for it and add it to the ADDITIONAL_DRIVERS list here:

github.com

libretro/Lakka-LibreELEC/blob/fff6e08b2fffd422d96b8cfb5f3d0425902ef193/distributions/Lakka/options#L73


  if [ "${TARGET_ARCH}" = "arm" ]; then
    ARM_MEM_SUPPORT="yes"
  else
    ARM_MEM_SUPPORT="no"
  fi

# additional drivers to install:
# for a list of additional drivers see packages/linux-drivers
# Space separated list is supported,
# e.g. ADDITIONAL_DRIVERS="DRIVER1 DRIVER2"
  ADDITIONAL_DRIVERS="RTL8192DU RTL8812AU xpadneo"

# Default size of system partition, in MB, eg. 512
  SYSTEM_SIZE=${SYSTEM_SIZE:-2048}

# Default system partition offset, in sectors, eg. 2048
  SYSTEM_PART_START=8192

# Size of storage partition, in MB. Must be >=32
  STORAGE_SIZE=32

Then just build the image:

make image PROJECT=Rockchip DEVICE=RK3328 ARCH=aarch64 UBOOT_SYSTEM=rock64