Linux support for RTL8821CU based products
Compatibility information
| Chipset VID&PID | 0bda:c820 |
| Related products | AWUS036EACS |
| Linux Hardware | https://linux-hardware.org/index.php?id=usb:0bda-c820 |
Support status:
| Kali 2022.2 | Need compile driver from source | |
| Kali 2021.2 | Need compile driver from source | |
| Ubuntu 22.04 | Need compile driver from source | |
| Ubuntu 20.10 | Need compile driver from source | |
| Debian 11.0.3 | Need compile driver from source | |
| Debian 10.7.0 | Need compile driver from source | |
| Raspberry Pi OS (32-bit) (rev 2022-04-04) | Need compile driver from source |
Drivers
Linux kernel mainline
| LKDDb | Not supported by upstream Linux kernel |
| Support kernel versions | Not listed |
| Linux Wireless Wiki | Not listed |
GitHub - morrownr/8821cu
URL: https://github.com/morrownr/8821cu
GitHub - brektrou/rtl8821CU
URL: https://github.com/brektrou/rtl8821CU
GitHub - ulli-kroll/rtw88-usb
URL: https://github.com/ulli-kroll/rtw88-usb
Driver installation
Kali
STEP 1 : Open Terminal Emulator
STEP 2 : Run commands
sudo apt update
which bc || sudo apt install bc
which dkms || sudo apt install dkms
STEP 3 : Download driver source
git clone https://github.com/morrownr/8821cu-20210118.git
STEP 4 : Compile and install
cd 8821cu-20210118
sudo ./install-driver.sh
STEP 5 (Optional): Check driver existance
Run commands below:
find /lib/modules/`uname -r`/ -name "8821cu.ko"
There should be a file in search result if driver was successfully installed.
Note
Remember to plug the dongle out and in once to get the driver reloaded.
Ubuntu
STEP 1 : Open Terminal Emulator
STEP 2 : Run commands
sudo apt update
which bc || sudo apt install bc
which dkms || sudo apt install dkms
STEP 3 : Download driver source
git clone https://github.com/morrownr/8821cu-20210118.git
STEP 4 : Compile and install
cd 8821cu-20210118
sudo ./install-driver.sh
STEP 5 (Optional): Check driver existance
Run commands below:
find /lib/modules/`uname -r`/ -name "8821cu.ko"
There should be a file in search result if driver was successfully installed.
Note
Remember to plug the dongle out and in once to get the driver reloaded.
Debian
STEP 1 : Open Terminal Emulator
STEP 2 : Run commands
sudo apt update
sudo apt install bc git build-essential dkms rfkill
STEP 3 : Download driver source
git clone https://github.com/morrownr/8821cu-20210118.git
STEP 4 : Compile and install
cd 8821cu-20210118
sudo ./install-driver.sh
STEP 5 (Optional): Check driver existance
Run commands below:
find /lib/modules/`uname -r`/ -name "8821cu.ko"
There should be a file in search result if driver was successfully installed.
Note
Remember to plug the dongle out and in once to get the driver reloaded.
Raspberry Pi OS
STEP 1 : Open Terminal
STEP 2 : Run commands
sudo apt update
sudo apt upgrade
sudo apt install raspberrypi-kernel-headers
sudo apt install bc build-essential dkms git
Reboot after commands above finish to have new updates applied.
STEP 3 : Download driver source
git clone https://github.com/morrownr/8821cu-20210118.git
STEP 4 : Compile and install
Enter source directory and run commands below:
cd 8821cu-20210118
./ARM_RPI.sh
sudo ./install-driver.sh
STEP 5 (Optional): Check driver existance
Run commands below:
find /lib/modules/`uname -r`/ -name "8821cu.ko"
There should be a file in search result if driver was successfully installed.
Note
Remember to plug the dongle out and in once to get the driver reloaded.