rtl8812au

Realtek 8812AU/8821AU USB WiFi driver.

for AC1200 (801.11ac) Wireless Dual-Band USB Adapter

Modification of https://github.com/abperiasamy/rtl8812AU_8821AU_linux with LED switched off

See original README at ORIGINAL_README.md

Building

Needs building with the target kernel installed, on the desired architecture (e.g. Pi 1)

All done as root:

# install build dependencies
apt install build-essential raspberrypi-kernel-headers bc

# if you are targetting an older kernel, download the old kernel headers
# otherwise skip this step
# e.g:
wget http://archive.raspberrypi.org/debian/pool/main/r/raspberrypi-firmware/raspberrypi-kernel-headers_1.20180924-1_armhf.deb # your kernel version
wget http://archive.raspberrypi.org/debian/pool/main/r/raspberrypi-firmware/raspberrypi-kernel-headers_1.20180924-1_armhf.deb # your kernel version
dpkg -i *.deb

# clone this repo and build the driver
# must be on the target hardware e.g. Pi 1
# takes ages
git clone https://github.com/astro-pi/rtl8812AU_8821AU_linux
cd rtl8812AU_8821AU_linux
ARCH=arm KVER=`uname -r` make -j5

This outputs the driver rtl8812au.ko

Installing

cp rtl8812.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless/
depmod
modprobe rtl8812au

Check it's installed correctly:

• Run ls /sys/class/net and you should see eth0 lo wlan0.

• Scan for WiFi networks:

iwlist scan

• Check ifconfig and you should see wlan0 with no IP address

Connect to a network:

• Add your network config to /etc/wpa_supplicant/wpa_supplicant.conf

• Run ifdown wlan0 and ifup wlan0

• Run ifconfig and you should have an IP address associated with wlan0