install the RTL88x2BU driver…
Install dependencies
First step is to install all required dependencies for the build. Keep also in mind, that the driver is build for the current installed kernel version. So performing an sudo apt update && sudo apt upgrade beforehand maybe useful. ????
sudo apt update
sudo apt install build-essential bc git wget libssl-dev bison flex dkms libncurses5-dev
Download kernel source files
To compile the driver we need the source code of the currently running kernel. Luckily the rpi-source tool takes care of that.
# Create build folder
mkdir ~/rtl8812bu-build/
cd ~/rtl8812bu-build/
# Download rpi-source tool
sudo wget https://raw.githubusercontent.com/notro/rpi-source/master/rpi-source -O /usr/bin/rpi-source && sudo chmod +x /usr/bin/rpi-source && /usr/bin/rpi-source -q --tag-update
# Download kernel source (around ~150MB to download)
rpi-source
Install driver
cd ~/rtl8812bu-build/
git clone https://github.com/cilynx/rtl88x2bu.git
cd rtl88x2bu
Modify driver Makefile
To make the driver compile on a Raspberry Pi, some small adjustments to the Makefile are required. This two sed commands will do the job.
sed -i '/CONFIG_PLATFORM_I386_PC = y/c\CONFIG_PLATFORM_I386_PC = n' Makefile
sed -i '/CONFIG_PLATFORM_ARM_RPI = n/c\CONFIG_PLATFORM_ARM_RPI = y' Makefile
Compile driver
Now the fun begins ???? The following commands will compile and install the driver as Dynamic Kernel Module (DKMS). When everything works out the modprobe command will then load the compiled driver itself.
VER=$(sed -n 's/\PACKAGE_VERSION="\(.*\)"/\1/p' dkms.conf)
sudo rsync -rvhP ./ /usr/src/rtl88x2bu-${VER}
sudo dkms add -m rtl88x2bu -v ${VER}
sudo dkms build -m rtl88x2bu -v ${VER}
sudo dkms install -m rtl88x2bu -v ${VER}
sudo modprobe 88x2bu
Check if driver works
After the driver is loaded it can be check with sudo iwconfig if the wifi device is correctly loaded and ready to use. On my Raspberry Pi 3 (which have an onboard wifi card) the new device is added as wlan1. Now this can be used as any other wifi device.
pi@raspberrypi:~ $ sudo iwconfig
wlan1 IEEE 802.11AC ESSID:off/any Nickname:“<WIFI@REALTEK>“
Mode:Managed Access Point: Not-Associated
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
gefunden auf: https://www.manuel-bauer.net/blog/install-driver-for-rtl8812bu-wifi-dongle-on-a-raspberry-pi
