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morrownr / 8821au-20210708

Linux Driver for USB WiFi Adapters that are based on the RTL8811AU and RTL8821AU Chipsets - v5.12.5.2
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8821au installs fine, module loads, but no interface? #107

Closed hjheins closed 10 months ago

hjheins commented 10 months ago

Hello, I installed your package with no issues whatsoever. ./install-driver.sh worked fine, and without errors. However, after reboot, the module doesn't load automatically. Also, when loading the module with "modprobe 8821au" I get the following in dmesg:

[code] [ 4712.483902] usb 3-2: new high-speed USB device number 2 using xhci_hcd [ 4712.630199] usb 3-2: New USB device found, idVendor=2604, idProduct=0012, bcdDevice= 0.00 [ 4712.630213] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 4712.630218] usb 3-2: Product: 802.11n NIC [ 4712.630222] usb 3-2: Manufacturer: Realtek [ 4712.630225] usb 3-2: SerialNumber: 123456 [ 4996.813913] usb 3-2: USB disconnect, device number 2 [ 5003.957132] usb 3-2: new high-speed USB device number 3 using xhci_hcd [ 5004.100024] usb 3-2: New USB device found, idVendor=2604, idProduct=0012, bcdDevice= 0.00 [ 5004.100038] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 5004.100043] usb 3-2: Product: 802.11n NIC [ 5004.100047] usb 3-2: Manufacturer: Realtek [ 5004.100051] usb 3-2: SerialNumber: 123456 [ 5013.091651] RTW: module init start [ 5013.091658] RTW: rtl8821au v5.12.5.2-0-g70054197b.20210708_COEX20190509-6d6f [ 5013.091662] RTW: rtl8821au BT-Coex version = COEX20190509-6d6f [ 5013.091757] usbcore: registered new interface driver rtl8821au [ 5013.091760] RTW: module init ret=0 [/code]

However, when I check with "rfkill" or "iwconfig", there is no interface? My usb module is a Tenda U12, which, according to what I found in the documentation, is supported (dev and usb ID match).

The system I tested on:

Not sure what to do next? How could I get this working? Thanks,

Hendrik-Jan

your requested command result as attached. Tenda_u12.txt

morrownr commented 10 months ago

Hi @hjheins

There is a file called supported-device-IDs in the driver directory. Read it and check to see if you are using the correct driver.

If not, paste the result of:

$ lsusb

hjheins commented 10 months ago

Hello @morrownr, In the file "supported-device-IDs" my usb device is not mentioned. However in the referred file: "usb_intf.c" it is mentioned on line 190, in the section for the 8812A.

The driver that is being built is: "8821au". Not sure if this is correct?

lsusb gives: [code] Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 2604:0012 Tenda U12 Bus 003 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 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface Bus 001 Device 002: ID 0408:30c0 Quanta Computer, Inc. USB2.0 HD UVC WebCam Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub [/code]

thanks.

hjheins commented 10 months ago

Ok, i Found it. That was officially a stupid move: I installed the 8821au driver from your repository, which is NOT for the 8812au (see the number switch at the back.) I just found teh 8812au repo, installed it, and now it is working as designed.

Thank you very much for your work! Ticket will be closed.

morrownr commented 10 months ago

Good.

Let me point out the site Main Menu as it may have some info that is of use to you:

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