A few versions ago (around 6.4 IIRC), rtw88x2bu support has been added to the mainline Linux kernel. This repo will be maintained until we either receive a few comments on #270 that the mainline driver is working well or MaxG87 and cilynx agree that no feedback means no one is still using this driver and we make the executive decision to archive it.
As of upstream version 5.6.1, I'm moving away from individual repositories for each upstream version in favor of a single repository with version-based branches. Hopefully, this will help with clutter and URL consistency moving forward. The archived repositories are available here:
- rtl88x2BU_WiFi_linux_v5.6.1.6_35492.20191025_COEX20180928-6a6a
- rtl88x2BU_WiFi_linux_v5.6.1_30362.20181109_COEX20180928-6a6a
- rtl88x2BU_WiFi_linux_v5.3.1_27678.20180430_COEX20180427-5959
- rtl88x2BU_WiFi_linux_v5.2.4.4_26334.20180126_COEX20171012-5044
- rtl88x2BU_WiFi_linux_v5.2.4.4_25643.20171212_COEX20171012-5044
- rtl88x2BU_WiFi_linux_v5.2.4.1_22719_COEX20170518-4444.20170613
Updated driver for rtl88x2bu wifi adaptors based on Realtek's source distributed with myriad adapters.
Realtek's 5.6.1.6 source was found bundled with the Cudy WU1200 AC1200 High Gain USB Wi-Fi Adapter and can be downloaded from Cudy's website.
Build confirmed on:
- Linux version
5.4.0-91-genericon Linux Mint 20.2 (30 November 2021) - Linux version
5.15.89on Manjaro (3 February 2023) - Linux version
5.19on Ubuntu 22.4 - Linux version
6.1.0-9-amd64on Debian Bookworm - Linux version
6.1.*(self compiled) on Debian Bookworm and Ubuntu 22.04 - Linux version
6.2.*(self compiled) on Debian Bookworm and Ubuntu 22.04 - Linux version
6.3.*(self compiled) on Debian Bookworm and Ubuntu 22.04 - Linux version
6.4.3(self compiled) on Debian Bookworm - Linux version
6.5.5(self compiled) on Debian Bookworm - Linux version
6.6.1(self compiled) on Debian Bookworm - Linux version
6.7.2(self compiled) on Debian Bookworm and Ubuntu 22.04 - Linux version
6.8.8(self compiled) on Debian Trixie - Linux version
6.9.0(self compiled) on Debian Trixie
In order to make direct use of the driver it should suffice to build the driver
with make and to load it with insmod 88x2bu.ko. This will allow you
to use the driver directly without changing your system persistently.
It might happen that your system freezes instantaneously. Ensure to not loose important work by saving and such beforehand.
If you want to have the driver available at startup, it will be convenient to
register it in DKMS. An executable explanation of how to do so can be found in
the script deploy.sh. Since registering a kernel module in DKMS is a major
intervention, only execute it if you understand what the script does.
Some users reported problems due to Unknown symbol in module. A likely cause
of this is that the cfg80211 module is not present in the Kernel. You can fix
this by running it:
sudo modprobe cfg80211
Another reported cause was that old deployments of the driver were still present in the system directories. One reported solution was to forcibly remove all old driver modules. This is a drastic measure. It may prevent you from using other external WiFi adapters. See this issue for more information.
If you want to proceed anyways, you can run the following commands:
sudo dkms remove rtl88x2bu/5.8.7.4 --all
find /lib/modules -name cfg80211.ko -ls
sudo rm -f /lib/modules/*/updates/net/wireless/cfg80211.ko
Starting from Linux 5.18, some distributions have added experimental RTW88 USB support (include RTW88x2BU support). It is not yet stable but if it works well on your system, then you no longer need this driver. But if it doesn't work or is unstable, you need to manually blacklist it because it has a higher loading priority than this external drivers.
Check the currently loaded module using lsmod. If you see rtw88_core,
rtw88_usb, or any name beginning with rtw88_ then you are using the RTW88
driver. If you see 88x2bu then you are using this RTW88x2BU driver.
To blacklist RTW88 8822bu USB driver, run the following command. It will
replace the existing *.conf file with the echoed content.
echo "blacklist rtw88_8822bu" | sudo tee /etc/modprobe.d/rtw8822bu.conf
Then reboot your system.
Secure Boot will prevent the module from loading as it isn't signed. In order
to check whether you have secure boot enabled, you couly run mokutil --sb-state. If you see something like SecureBoot disabled, you do not take
to setup module signing.
If Secure Boot is enabled on your machine, you either could disable it in BIOS or UEFI or you could set up signing the module. How to do so is described here.
# Update all packages per normal
sudo apt update
sudo apt upgrade
# Install prereqs
sudo apt install git dnsmasq hostapd bc build-essential dkms raspberrypi-kernel-headers
# Reboot just in case there were any kernel updates
sudo reboot
# Pull down the driver source
git clone https://github.com/cilynx/rtl88x2bu
cd rtl88x2bu/
# Configure for RasPi
sed -i 's/I386_PC = y/I386_PC = n/' Makefile
sed -i 's/ARM_RPI = n/ARM_RPI = y/' Makefile
# DKMS as above
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} # Takes ~3-minutes on a 3B+
sudo dkms install -m rtl88x2bu -v ${VER}
# Plug in your adapter then confirm your new interface name
ip addr
# Set a static IP for the new interface (adjust if you have a different interface name or preferred IP)
sudo tee -a /etc/dhcpcd.conf <<EOF
interface wlan1
static ip_address=192.168.4.1/24
nohook wpa_supplicant
EOF
# Clobber the default dnsmasq config
sudo tee /etc/dnsmasq.conf <<EOF
interface=wlan1
dhcp-range=192.168.4.100,192.168.4.199,255.255.255.0,24h
EOF
# Configure hostapd
sudo tee /etc/hostapd/hostapd.conf <<EOF
interface=wlan1
driver=nl80211
ssid=pinet
hw_mode=g
channel=7
wmm_enabled=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=CorrectHorseBatteryStaple
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
EOF
sudo sed -i 's|#DAEMON_CONF=""|DAEMON_CONF="/etc/hostapd/hostapd.conf"|' /etc/default/hostapd
# Enable hostapd
sudo systemctl unmask hostapd
sudo systemctl enable hostapd
# Reboot to pick up the config changes
sudo rebootIf you want 802.11an speeds 144Mbps you could use this config below:
# Configure hostapd
sudo tee /etc/hostapd/hostapd.conf <<EOF
interface=wlx74ee2ae24062
driver=nl80211
ssid=borg
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=toe54321
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
hw_mode=a
channel=36
wmm_enabled=1
country_code=US
require_ht=1
ieee80211ac=1
require_vht=1
#This below is supposed to get us 867Mbps and works on rtl8814au doesn't work on this driver yet
#vht_oper_chwidth=1
#vht_oper_centr_freq_seg0_idx=157
ieee80211n=1
ieee80211ac=1
EOF
$ iwconfig
wlx74ee2ae24062 IEEE 802.11an ESSID:"borg" Nickname:"<WIFI@REALTEK>"
Mode:Master Frequency:5.18 GHz Access Point: 74:EE:2A:E2:40:62
Bit Rate:144.4 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=0/100 Signal level=-100 dBm Noise level=0 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
If you want to setup masquerading or bridging, check out the official Raspberry Pi docs.
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