[Help]: Please could you create a driver for RTL8851BU (AX900)?

[awaism257]

Checklist

• I acknowledge that support is provided on a best-effort basis.
• I acknowledge that the authors and contributors to this repository cannot be held responsible for the results of my use of any information contained in or linked from this repository.

uname

Linux awais-pc 6.10.7-200.fsync.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC TKG Wed Sep 4 04:41:43 UTC 2024 x86_64 GNU/Linux

lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 05e3:0610 Genesys Logic, Inc. Hub Bus 003 Device 003: ID 0bda:b851 Realtek Semiconductor Corp. 802.11ax WLAN Adapter Bus 003 Device 004: ID 1bcf:08a0 Sunplus Innovation Technology Inc. Gaming mouse [Philips SPK9304] Bus 003 Device 005: ID 2f68:0082 Hoksi Technology DURGOD Taurus K320 Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 004 Device 002: ID 05e3:0626 Genesys Logic, Inc. Hub

rfkill

1: hci0: Bluetooth Soft blocked: no Hard blocked: no

dkms

1: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

iw

No results returned.

What happened?

I have bought the following USB adapter: WiFi6 USB Adapter AX900 Bluetooth 5.3 Dual band 900Mbps Wireless Network Card Wifi Antenna Dongle Free Drive For PC Win10 11 but it does not work out of the box and I cannot find a driver for it to install on my distro.

https://www.aliexpress.com/item/1005006762268066.html?spm=a2g0o.order_list.order_list_main.11.57731802pb9fE3

[morrownr]

Hi @awaism257

Let me give you links to information that you need:

#449

Main Menu: https://github.com/morrownr/USB-WiFi

USB WiFi Adapter Information for Linux: https://github.com/morrownr/USB-WiFi/blob/main/home/USB_WiFi_Adapter_Information_for_Linux.md

The Plug and Play List: https://github.com/morrownr/USB-WiFi/blob/main/home/USB_WiFi_Adapters_that_are_supported_with_Linux_in-kernel_drivers.md

USB WiFi chipset information for Linux: https://github.com/morrownr/USB-WiFi/blob/main/home/USB_WiFi_Chipsets.md

I hope this helps

[dcionline]

@morrownr I know the adapter CF-943AX where talked somewhere else, but i want to add a bit about that.
I saw some more adapters with Wifi6+BT5.3 inbuild and they might use the same firmware.
This listed, 0bda:b851 Comfast.
Edup EP-AX910, has Wifi+BT drivers for Win10/11 edup.cn or search here ax910 or maybe ax900 if needed szedup.com
TP-Link TX10UP has actual drivers from august. Dont know if location mathers. Philippines / US
Fenvi AX900
Knowing there is plenty more of this same models, maybe the latest firmwares gives some details or a hint for someone else to build up a working git repo.

[AvianJay]

i have same device but bought in shopee
i found some driver in here
all links of "AX900+BT5.3" devices point to http://cn.fenvi.com/support/USBNew/AX900-LINUX.zip
but my build failed idk why
Logs:

/home/avianjay/RTL8851BU/driver/rtl8851BU_WiFi_linux_v1.19.10-70-g84e35c28d.20231019/os_dep/osdep_service_linux.c: In function ‘rtw_random32’:
/home/avianjay/RTL8851BU/driver/rtl8851BU_WiFi_linux_v1.19.10-70-g84e35c28d.20231019/os_dep/osdep_service_linux.c:870:16: error: implicit declaration of function ‘prandom_u32’; did you mean ‘get_random_u32’? [-Wimplicit-function-declaration]
  870 |         return prandom_u32();
      |                ^~~~~~~~~~~
      |                get_random_u32
make[3]: *** [/usr/src/linux-headers-6.11.2-common/scripts/Makefile.build:249：/home/avianjay/RTL8851BU/driver/rtl8851BU_WiFi_linux_v1.19.10-70-g84e35c28d.20231019/os_dep/osdep_service_linux.o] 錯誤 1
make[2]: *** [/usr/src/linux-headers-6.11.2-common/Makefile:1951：/home/avianjay/RTL8851BU/driver/rtl8851BU_WiFi_linux_v1.19.10-70-g84e35c28d.20231019] 錯誤 2
make[1]: *** [/usr/src/linux-headers-6.11.2-common/Makefile:236：__sub-make] 錯誤 2
make[1]: 離開目錄「/usr/src/linux-headers-6.11.2-amd64」
make: *** [Makefile:819：modules] 錯誤 2

[morrownr]

Hi @AvianJay

I'll make a deal with you. If you go to the Main Menu, read menu items 1 and 2, I'll take a look at the driver and see about helping you get it going if it is not too much of a mess. There will be a test after you finish reading ;)

Main Menu:

https://github.com/morrownr/USB-WiFi