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https://github.com/RinCat/RTL88x2BU-Linux-Driver.git
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177 lines
4.4 KiB
Markdown
177 lines
4.4 KiB
Markdown
# REALTEK RTL88x2B USB Linux Driver
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**Current Driver Version**: 5.13.1-30
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**Support Kernel**: 2.6.24 ~ 6.10 (with unofficial patches)
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Linux in-tree rtw8822bu driver is working in process, check [this](https://lore.kernel.org/lkml/20220518082318.3898514-1-s.hauer@pengutronix.de/) patchset.
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Official release note please check ReleaseNotes.pdf
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**Note:** if you believe your device is **RTL8812BU** or **RTL8822BU** but after loaded the module no NIC shows up, the device ID maybe not in the driver whitelist. In this case please submit a new issue with `lsusb` result, and your device name, brand, website, etc.
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## Linux 5.18+ and RTW88 Driver
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Starting from Linux 5.18, some distributions have added experimental RTW88 USB support (include RTW88x2BU support).
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It is not yet stable but if it works well on your system, then you no longer need this driver.
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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.
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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.
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If you see `88x2bu` then you are using this RTW88x2BU driver.
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To blacklist RTW88 8822bu USB driver, run the following command:
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```
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echo "blacklist rtw88_8822bu" > /etc/modprobe.d/rtw8822bu.conf
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```
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And reboot your system.
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## Supported Devices
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<details>
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<summary>
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ASUS
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</summary>
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* ASUS AC1300 USB-AC55 B1
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* ASUS U2
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* ASUS USB-AC53 Nano
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* ASUS USB-AC58
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</details>
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<details>
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<summary>
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Dlink
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</summary>
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* Dlink - DWA-181
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* Dlink - DWA-182
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* Dlink - DWA-183 D Version
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* Dlink - DWA-185
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* Dlink - DWA-T185
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</details>
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<details>
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<summary>
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Edimax
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</summary>
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* Edimax EW-7822ULC
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* Edimax EW-7822UTC
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* Edimax EW-7822UAD
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</details>
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<details>
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<summary>
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Mercusys
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</summary>
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* Mercusys MA30N
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* Mercusys MA30H V2
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</details>
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<details>
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<summary>
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NetGear
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</summary>
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* NetGear A6150
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</details>
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<details>
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<summary>
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TP-Link
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</summary>
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* TP-Link Archer T3U
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* TP-Link Archer T3U Plus
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* TP-Link Archer T3U Nano
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* TP-Link Archer T4U V3
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* TP-Link Archer T4U Plus
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</details>
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<details>
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<summary>
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TRENDnet
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</summary>
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* TRENDnet TEW-808UBM
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</details>
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<details>
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<summary>
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ZYXEL
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</summary>
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* ZYXEL NWD6602
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</details>
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And more.
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# How to use this kernel module
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* Ensure you have C compiler & toolchains, e.g. `build-essential` for Debian/Ubuntu, `base-devel` for Arch, etc.
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* Make sure you have installed the corresponding kernel headers
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* All commands need to be run in the driver directory
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* You need rebuild the kernel module everytime you update/change the kernel if you are not using DKMS
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## Manual installation
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### Clean
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* Make sure you cleaned old build files before builds new one
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```
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make clean
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```
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### Building module for current running kernel
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```
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make
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```
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### Building module for other kernels
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```
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make KSRC=/lib/modules/YOUR_KERNEL_VERSION/build
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```
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### Installing
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```
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sudo make install
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```
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### Uninstalling
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```
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sudo make uninstall
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```
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## Using DKMS (Dynamic Kernel Module Support)
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Allows smooth integration with kernel updates
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### Initial DKMS installation
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```
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git clone "https://github.com/RinCat/RTL88x2BU-Linux-Driver.git" /usr/src/rtl88x2bu-git
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sed -i 's/PACKAGE_VERSION="@PKGVER@"/PACKAGE_VERSION="git"/g' /usr/src/rtl88x2bu-git/dkms.conf
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dkms add -m rtl88x2bu -v git
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dkms autoinstall
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```
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### Upgrading the driver, when already under DKMS
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```
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cd /usr/src/rtl88x2bu-git
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git fetch
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git rebase origin/master --autostash
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dkms build rtl88x2bu/git --force
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dkms install rtl88x2bu/git --force
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```
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# USB 3.0 Support
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You can try use `modprobe 88x2bu rtw_switch_usb_mode=1` to force the adapter run under USB 3.0. But if your adapter/port/motherboard not support it, the driver will be in restart loop. Remove the parameter and reload the driver to restore. Alternatively, `modprobe 88x2bu rtw_switch_usb_mode=2` let\'s it run as USB 2 device.
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Notice: If you had already loaded the moduel, use `modprobe -r 88x2bu` to unload it first.
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If you want to force a given mode permanently (even when switching the adapter across devices), create the file `/etc/modprobe.d/99-RTL88x2BU.conf` with the following content:
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`options 88x2bu rtw_switch_usb_mode=1`
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# Debug
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Set debug log use `echo 5 > /proc/net/rtl88x2bu/log_level` or `modprobe 88x2bu rtw_drv_log_level=5`
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# Distribution
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* Archlinux AUR https://aur.archlinux.org/packages/rtl88x2bu-dkms-git/
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