10 replies to this topic

[nightrider75]

Hi,
 
I have a VU+Zero4K and a VU+ wifi dongle RTL8812AU that is not working in OpenPLi 9.0
I do make it work on OpenPLi 8.3

OpenPLi 8.3 and 9.0 use the same kernel 4.1.20-1.9
 

root@vuzero4k:~# lsusb
Bus 001 Device 002: ID 0bda:0811

In OpenPLi 8.3 I make it work with installing from feed->

opkg install firmware-rtl8xxxu
opkg install kernel-module-88xxau

But in OpenPLi 9.0, the kernel module is not present, only the firmware?

root@vuzero4k:~# opkg update
root@vuzero4k:~# opkg list | grep firmware-rtl8xxxu
firmware-rtl8xxxu - 1.1+git296+4b2b151-r0.0 - firmware-rtl8xxxu version 1.1+gitAUTOINC+4b2b151e18-r0

root@vuzero4k:~# opkg list | grep kernel-module-88xxau
root@vuzero4k:~#

root@vuzero4k:~# opkg list | grep kernel-module-88*
kernel-module-8189es - 1.0-r0.0 - Ralink 8189es v1.0
kernel-module-8189es-4.1.20-1.9 - 1.0-r0.0 - 8189es kernel module
kernel-module-8189es-dbg - 1.0-r0.0 - Ralink 8189es v1.0 - Debugging files
kernel-module-8189es-dev - 1.0-r0.0 - Ralink 8189es v1.0 - Development files
kernel-module-8192eu - 1.0-r0.0 - Driver for Realtek USB wireless device 8192eu
kernel-module-8192eu-4.1.20-1.9 - 1.0-r0.0 - 8192eu kernel module
kernel-module-8192eu-dbg - 1.0-r0.0 - Driver for Realtek USB wireless device 8192eu - Debugging files
kernel-module-8192eu-dev - 1.0-r0.0 - Driver for Realtek USB wireless device 8192eu - Development files
kernel-module-8821cu - 5.8.1-r0.0 - Drivers for Realtek 8821CU/8811CU
kernel-module-8821cu-4.1.20-1.9 - 5.8.1-r0.0 - 8821cu kernel module
kernel-module-8821cu-dbg - 5.8.1-r0.0 - Drivers for Realtek 8821CU/8811CU - Debugging files
kernel-module-8821cu-dev - 5.8.1-r0.0 - Drivers for Realtek 8821CU/8811CU - Development files
kernel-module-88x2bu - 5.6.1-r0.0 - Ralink 88x2BU v5.6.1
kernel-module-88x2bu-4.1.20-1.9 - 5.6.1-r0.0 - 88x2bu kernel module
kernel-module-88x2bu-dbg - 5.6.1-r0.0 - Ralink 88x2BU v5.6.1 - Debugging files
kernel-module-88x2bu-dev - 5.6.1-r0.0 - Ralink 88x2BU v5.6.1 - Development files

If someone ask me to test the these modules, it is not working->

kernel-module-8821cu

kernel-module-88x2bu

I have also tested with latest OpenViX 6.5.002 image, and there it is working out of the box.

Anyone that can give a hint of the reason the kernel module for this wifi device is not present in 9.0 release ?

 

 

 

 

[WanWizard]

Out of tree kernel drivers are built depending on the kernel version. Sometimes detection of this version goes wrong, which causes the build to be skipped. I'll have a look.

[WanWizard]

Checked, the build for 9.0-release wasn't finished until 02-04-2024 03:22 UTC (see our homepage).

 

It is available in the feed now:

[/openpli/oe/release-9.0/build/tmp/deploy/ipk (release-9.0) >> build@buildserver3] $ find vuzero4k -name "*88xxau*"
vuzero4k/kernel-module-88xxau_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-dbg_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-dev_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-4.1.20-1.9_5.6.4.2-r0.0_vuzero4k.ipk

 

[nightrider75]

 

Checked, the build for 9.0-release wasn't finished until 02-04-2024 03:22 UTC (see our homepage).

 

It is available in the feed now:

[/openpli/oe/release-9.0/build/tmp/deploy/ipk (release-9.0) >> build@buildserver3] $ find vuzero4k -name "*88xxau*"
vuzero4k/kernel-module-88xxau_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-dbg_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-dev_5.6.4.2-r0.0_vuzero4k.ipk
vuzero4k/kernel-module-88xxau-4.1.20-1.9_5.6.4.2-r0.0_vuzero4k.ipk

Thank you very much. :-)

[dolphs]

If someone ask me to test the these modules, it is not working->

kernel-module-8821cu

kernel-module-88x2bu

I have also tested with latest OpenViX 6.5.002 image, and there it is working out of the box.

Anyone that can give a hint of the reason the kernel module for this wifi device is not present in 9.0 release ?

 

 

Indeed have issues after installing firmware and packages for Realtek 8821CU Wireless LAN 802.11ac USB NIC with Bluetooth on my amiko4k

 

Mainly drills down to:

 

bluetooth hci0: Direct firmware load for rtl_bt/rtl8821a_fw.bin failed with error -2
Bluetooth: hci0: Failed to load rtl_bt/rtl8821a_fw.bin
AND for WiFi

8821cu: Unknown symbol cfg80211_connect_bss (err 0)

root@viper4k:/sys/kernel/debug/tracing/events/cfg80211# modprobe cfg80211
root@viper4k:/sys/kernel/debug/tracing/events/cfg80211# insmod /lib/modules/4.4.35/kernel/drivers/net/wireless/8821cu.ko
insmod: ERROR: could not insert module /lib/modules/4.4.35/kernel/drivers/net/wireless/8821cu.ko: Unknown symbol in module

[WanWizard]

What is the USB device id for that USB NIC ?

[dolphs]

Adapter used : " Bus 001 Device 003: ID 0bda:c820 " 

 

cheers

[WanWizard]

At least we're not the only ones having this problem, as I see you've tried ATV too: https://www.opena.tv...-bluetooth.html

 

Building out of tree drivers is always a pain, especially Realtek, as in general they only provide support for a single kernel version, and then dump it online for others to sort out. Especially backporting is a problem, as we need to support kernels ranging from 3.2 to 5.18.

 

In general, the newer the device, the more problems you'll have getting it supported on your box.

 

For the 8821CU, we build from the same source as ATV, so logical you see the same error there. I haven't found another source that has wide kernel version support we could build from.

[WanWizard]

You might want to try the 88x2cu or the 8192fu driver, both seem to support id c820 but it required CONFIG_RTL8821C enabled during the build, and I'm not sure that is the case.

[dolphs]

no seems to be NOK:

usb 1-1.2: new high-speed USB device number 4 using ehci-platform
Bluetooth: hci0: rtl: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_fw.bin
bluetooth hci0: Direct firmware load for rtl_bt/rtl8821a_fw.bin failed with error -2
Bluetooth: hci0: Failed to load rtl_bt/rtl8821a_fw.bin
8821cu: Unknown symbol cfg80211_connect_bss (err 0)

It is OK will check for another stick, don't invest too much time in this.

Indeed use both images, PLi for server

 

thanks

[WanWizard]

Remove the 8821 driver before trying the others.