Dwarf: RTL8821CU WiFi supported?

Developers
#1

Hi - Does anybody know if the RTL8821CU chipset is supported? Tried following the instructions on WiFi - MOD Wiki (moddevices.com) without any success:

[    0.583063] usb 1-1: New USB device found, idVendor=0bda, idProduct=c811, bcdDevice= 2.00
[    0.583083] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    0.583091] usb 1-1: Product: 802.11ac NIC
[    0.583097] usb 1-1: Manufacturer: Realtek
[    0.583103] usb 1-1: SerialNumber: 123456

…following the instructions ultimately results in: “A dependency job for dhcpcd-wlan0.service failed. See ‘journalctl -xe’ for details.”

Jan 01 02:23:03 moddwarf systemd[1]: Job sys-subsystem-net-devices-wlan0.device/start timed out.
Jan 01 02:23:03 moddwarf systemd[1]: Timed out waiting for device sys-subsystem-net-devices-wlan0.device.
Jan 01 02:23:03 moddwarf systemd[1]: Dependency failed for DHCP for wlan0.
Jan 01 02:23:03 moddwarf systemd[1]: Job dhcpcd-wlan0.service/start failed with result 'dependency'.
Jan 01 02:23:03 moddwarf systemd[1]: Dependency failed for WPA supplicant for wlan0.
Jan 01 02:23:03 moddwarf systemd[1]: Job wpa-supplicant-wlan0.service/start failed with result 'dependency'.
Jan 01 02:23:03 moddwarf systemd[1]: Job sys-subsystem-net-devices-wlan0.device/start failed with result 'timeout'.

I’ve tried the latest release candidate 1.13.0-RC1 which suggests it supports most BT/WiFi drivers out of the box (and appears to include modules for ‘rtlxxxu’, ‘rtl8192cu’ etc. within drivers/net/wireless/realtek which may or may not be relevant.).

Is there anything special I need to be doing here, other than buy another adaptor (specifically, I have this one: Foktech Wifi Dongle, AC600 802.11ac Dual Band 5GHz Mini Wireless Network USB Wifi Adapter

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#2

HI @CreativeLemming i experienced the same with a bluetooth/wifi combi dongle.
The bluetooth part works flawlessly but the wireless part is nit recognized
As far as i can tell there needs to be something integrated in the kernel.
Have a look here:

i was hoping that maybe with 1.13 there will be something working but no.
maybe @falkTX can do something because as far as i know there a lot of cheap wifi dongles with this chipset

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#3

Thanks @phil, I did see that, and also this one that appears to be updated more frequently (for 6.x kernel?)

…unfortunately not something I’d feel comfortable building/installing myself right now, unless there are any instructions on the wiki on how to get set up for this?

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#4

same here, i dont know how to get this into the kernel/dwarf.
is solved the problem with a different wifi dongle and a additional BL dongle.
one for all would be great, maybe we wait

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#5

Need to get my hands on one to test and fix whatever is needed, hard to do so without one.
Looking online that specific usb dongle is not available to buy from germany. So if you know other products with this exact chip/module, please do tell.

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#6

this one for example:

available in good old germany

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#7

Mines not a dual function device like Phil’s - mines actually reporting on my PC as RTL8811CU, the same as this one in stock on Amazon Germany:

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