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Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Sat Sep 10, 2016 9:04 am
by MrEngman
amq wrote:Sorry, I am being unclear. I meant:
Drivers for
Linux osmc 4.4.16-4-osmc #1 SMP PREEMPT Fri Aug 26 00:22:10 UTC 2016 armv7l GNU/Linux
When I wrote 4.4.16 drivers. Or would this just be the same as the 4.4.13.v1 ones that I downloaded from you and depmod'ed?
OK. Understand now.
I would be rather surprised if my 4.4.13 driver is working with 4.4.16. It seems that osmc already includes several Realtek drivers including the 8812au driver so you may be using the driver included in the osmc image and not my driver. Depends on how you installed it and the wifi module you are using.
You could try command
modinfo 8812au | grep v4 and see what it shows. The driver included with osmc is version v4.2.2_7502.20130517 and my driver is version v4.3.14_13455.20150212_BTCOEX20150128-51.
One thing that can help stop the wifi going down is disabling power management. For the 8812au driver create a file
/etc/modprobe.d/8812au.conf and add the line
Code: Select all
options 8812au rtw_power_mgnt=0 rtw_enusbss=0
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Sat Sep 10, 2016 9:18 am
by amq
Well I guess I was rather persistent when I installed the driver
version: v4.3.14_13455.20150212_BTCOEX20150128-51
I backed up my old 8812ac, copied over yours and depmod -a'd
Anyway it does indeed work on the osmc 4.4.16 kernel...
I'll edit the settings and disable power management accords to your suggestion.
Thanks for the help!
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Sun Sep 11, 2016 5:37 pm
by killergames156
Hello , I need a driver for 8812ac raspberry mam new OS on a PC but has a different kernel here is information
Linux Kali 4.1.19-v7 #1
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Nov 07, 2016 9:55 pm
by MrEngman
killergames156 wrote:Hello , I need a driver for 8812ac raspberry mam new OS on a PC but has a different kernel here is information
Linux Kali 4.1.19-v7 #1
To download and install the 8812au driver try this
Code: Select all
wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.1.19-v7-kali.tar.gz
tar xzf 8812au-4.1.19-v7-kali.tar.gz
./install.sh
After command
./install.sh you should reboot the Pi.
I have not tried this driver myself with Kali but I would expect it to work as I use the same source for Raspbian which is similar to the Kali kernel.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Nov 16, 2016 1:17 am
by randyf1965
Your current kernel revision = 4.4.27-2-osmc+
Your current kernel build = #1
Checking for a wifi module to determine the driver to install.
Your wifi module is Bus 001 Device 003: ID 7392:a812 Edimax Technology Co., Ltd
And it uses the 8812au driver.
Checking for a new 8812au wifi driver module for your current kernel.
A driver does not yet exist for this update.
My wifi adapter drops out every 3-5 minutes. Running bmon I see a large 30+ second gap in Rx data.
modinfo 8812au | grep v4
version: v4.2.2_7502.20130517
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Nov 16, 2016 9:29 pm
by MrEngman
randyf1965 wrote:Your current kernel revision = 4.4.27-2-osmc+
Your current kernel build = #1
Checking for a wifi module to determine the driver to install.
Your wifi module is Bus 001 Device 003: ID 7392:a812 Edimax Technology Co., Ltd
And it uses the 8812au driver.
Checking for a new 8812au wifi driver module for your current kernel.
A driver does not yet exist for this update.
My wifi adapter drops out every 3-5 minutes. Running bmon I see a large 30+ second gap in Rx data.
modinfo 8812au | grep v4
version: v4.2.2_7502.20130517
The script you are trying to use to install the 8812au driver is for use with Raspbian. I generally only compile drivers for Raspbian and don't have one for OSMC.
I tried OSMC myself earlier today using image 4.4.27-2-osmc and found no problems using the 8812au driver included in the image. However, one thing I did was create a file that disables power management on the 8812au driver.
You could try this and see if it makes any difference. Create a file
/etc/modprobe.d/8812au.conf as an example using command
Code: Select all
sudo nano /etc/modprobe.d/8812au.conf
and add the line
Code: Select all
options 8812au rtw_power_mgnt=0 rtw_enusbss=0
I tried on a Pi 3B so I also disable the built in Broadcom wifi by including the line
as the first line in the
/etc/modprobe.d/8812au.conf file. After creating the
8812au.conf file you will need to reboot to make it active.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Nov 21, 2016 10:00 pm
by xphoto
Thanks MrEngman !
It worked for me with the
https://dl.dropboxusercontent.com/u/802 ... 858.tar.gz version
I just updated my Pi2 from 3.x to 4.1.19
took your file, install, had to remove the "rtw_enusbss=0"
run :
ifdown wlan0
ifup wlan0
and now it's connected to the already saved wifi network
I'm using a DLInk dongle:
Bus 001 Device 004: ID 2001:3314 D-Link Corp.
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Nov 21, 2016 10:28 pm
by MrEngman
xphoto wrote:Thanks MrEngman !
It worked for me with the
https://dl.dropboxusercontent.com/u/802 ... 858.tar.gz version
I just updated my Pi2 from 3.x to 4.1.19
took your file, install, had to remove the "rtw_enusbss=0"
run :
ifdown wlan0
ifup wlan0
and now it's connected to the already saved wifi network
I'm using a DLInk dongle:
Bus 001 Device 004: ID 2001:3314 D-Link Corp.
Glad to be able to help. However, why did you need to remove
rtw_enusbss=0?
I use this in the conf file for all the different Realtek wifi modules I have, and have for several years now, and have no problems with it.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Thu Dec 29, 2016 7:22 am
by kishandamani
Hi ,
I have installed raspbian on pi2 .
"uname -r" gives the following output : 4.4.34-v7+(kernal version)
I need a wifi driver for my following device :
Equipment : AC600 Wi-Fi Dual-Band USB Adapter
Model No : EW-7811UTC
Please help
Regards,
Kishan
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Thu Dec 29, 2016 11:53 am
by MrEngman
kishandamani wrote:Hi ,
I have installed raspbian on pi2 .
"uname -r" gives the following output : 4.4.34-v7+(kernal version)
I need a wifi driver for my following device :
Equipment : AC600 Wi-Fi Dual-Band USB Adapter
Model No : EW-7811UTC
Please help
Regards,
Kishan
You can download and install the driver using commands
Code: Select all
wget https://dl.dropboxusercontent.com/u/80256631/8812au-4.4.34-v7-930.tar.gz
tar xzf 8812au-4.4.34-v7-930.tar.gz
./install.sh
if you are using Raspbian OS.
And FYI use command
uname -a when showing your kernel version.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Jan 04, 2017 2:56 am
by imadaily
MrE
First of all thanks for your work on the install script that identifies and downloads the correct driver, it has worked well for me on a couple of pis.
I do however now have a problem on a Pi3B after installing the drivers.
I had previously set the internal WiFi (wlan0) up into AP mode according to:
https://frillip.com/using-your-raspberr ... h-hostapd/
I also wanted to install an Edimax 7811utc dongle as well as the internal wifi (for use on 5ghz), I plugged this in and used your script to load the driver.
Since rebooting the internal WiFi has disappeared
ifconfig -a shows only eth0, lo, and wlan0 (now the edimax dongle)
unplugging the wifi dongle and rebooting gives only eth0 and lo
Code: Select all
~ $ lsmod
Module Size Used by
bnep 10340 2
hci_uart 17943 1
btbcm 5929 1 hci_uart
bluetooth 326105 22 bnep,btbcm,hci_uart
snd_bcm2835 20447 1
snd_pcm 75762 1 snd_bcm2835
snd_timer 19288 1 snd_pcm
snd 51908 5 snd_bcm2835,snd_timer,snd_pcm
bcm2835_gpiomem 3040 0
bcm2835_wdt 3225 0
8812au 1673762 0
cfg80211 427855 1 8812au
rfkill 16037 5 cfg80211,bluetooth
uio_pdrv_genirq 3164 0
uio 8000 1 uio_pdrv_genirq
i2c_bcm2708 4834 0
i2c_dev 5859 0
fuse 84037 3
ipv6 347594 58
8812au is the edimax driver and i think cfg80211 is the intergrated wifi driver so i don't really see where the problem is...
Any suggestions on where this may have gone wrong would be great!
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Jan 04, 2017 9:13 am
by MrEngman
imadaily wrote:MrE
First of all thanks for your work on the install script that identifies and downloads the correct driver, it has worked well for me on a couple of pis.
I do however now have a problem on a Pi3B after installing the drivers.
I had previously set the internal WiFi (wlan0) up into AP mode according to:
https://frillip.com/using-your-raspberr ... h-hostapd/
I also wanted to install an Edimax 7811utc dongle as well as the internal wifi (for use on 5ghz), I plugged this in and used your script to load the driver.
Since rebooting the internal WiFi has disappeared
ifconfig -a shows only eth0, lo, and wlan0 (now the edimax dongle)
unplugging the wifi dongle and rebooting gives only eth0 and lo
Code: Select all
~ $ lsmod
Module Size Used by
bnep 10340 2
hci_uart 17943 1
btbcm 5929 1 hci_uart
bluetooth 326105 22 bnep,btbcm,hci_uart
snd_bcm2835 20447 1
snd_pcm 75762 1 snd_bcm2835
snd_timer 19288 1 snd_pcm
snd 51908 5 snd_bcm2835,snd_timer,snd_pcm
bcm2835_gpiomem 3040 0
bcm2835_wdt 3225 0
8812au 1673762 0
cfg80211 427855 1 8812au
rfkill 16037 5 cfg80211,bluetooth
uio_pdrv_genirq 3164 0
uio 8000 1 uio_pdrv_genirq
i2c_bcm2708 4834 0
i2c_dev 5859 0
fuse 84037 3
ipv6 347594 58
8812au is the edimax driver and i think cfg80211 is the intergrated wifi driver so i don't really see where the problem is...
Any suggestions on where this may have gone wrong would be great!
Probably an issue with the file
/etc/modprobe.d/8812au.conf. Check the file and see if there is a line
which will disable the built in wifi. If there is either comment out or delete the line.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Jan 04, 2017 4:21 pm
by imadaily
I removed that line and it's all working well, many thanks
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Feb 22, 2017 5:28 pm
by dani12345
Hola,
Me gustaría poder bajar el Kernel de la Raspberry pi 3. Actualmente mi Kernel es 4.1.19-v7+.
Quisiera tener un Kernel 3.19.0 para instalar unos drivers de un adaptador, como podría bajarlo?
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Tue Mar 14, 2017 5:29 am
by lenin1928
Linux raspberrypi 4.9.13-v7+ #974
hello is there a driver out for this kernel yet? edimax 7822ulc
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Tue Mar 14, 2017 10:48 am
by MrEngman
lenin1928 wrote:Linux raspberrypi 4.9.13-v7+ #974
hello is there a driver out for this kernel yet? edimax 7822ulc
Don't know. What driver does it use as I've not seen that wifi mentioned before. What is the driver it uses and what is it's USB ID?
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Tue Mar 14, 2017 6:59 pm
by lenin1928
MrEngman wrote:lenin1928 wrote:Linux raspberrypi 4.9.13-v7+ #974
hello is there a driver out for this kernel yet? edimax 7822ulc
Don't know. What driver does it use as I've not seen that wifi mentioned before. What is the driver it uses and what is it's USB ID?
MrEngman
Edimax 7392:b822
Correct model number on edimax's website is EW-7822ULC
I can't find a specific driver for that particular model. I'm guessing it would use 7811's driver since it's similar.
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Tue Mar 14, 2017 10:24 pm
by MrEngman
lenin1928 wrote:MrEngman wrote:lenin1928 wrote:Linux raspberrypi 4.9.13-v7+ #974
hello is there a driver out for this kernel yet? edimax 7822ulc
Don't know. What driver does it use as I've not seen that wifi mentioned before. What is the driver it uses and what is it's USB ID?
MrEngman
Edimax 7392:b822
Correct model number on edimax's website is EW-7822ULC
I can't find a specific driver for that particular model. I'm guessing it would use 7811's driver since it's similar.
Well, there are a number of wifi modules which include 7822 in the name and they use a variety of different drivers as do devices with 7811 in the name. So trying to guess the driver to use is not much help.
I've spent some time searching on the internet and cannot find any reference to a Linux driver.
I could add the USB code to the driver used by the EW-7811UTC but whether it will work or not I have no idea.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Tue Mar 14, 2017 10:52 pm
by MrEngman
Finally found some info on the chip used in the EW-7822ULC so it may help find the driver. Found the info here
https://www.reichelt.de/WLAN-Adapter/ED ... ARCH=%252A
Chip set is MT7621A + MT7615E whatever they are as I've not seen these specified before.
No idea what driver can be used other than perhaps mt7621a if there is such a thing.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Wed Mar 15, 2017 4:11 am
by lenin1928
MrEngman wrote:Finally found some info on the chip used in the EW-7822ULC so it may help find the driver. Found the info here
https://www.reichelt.de/WLAN-Adapter/ED ... ARCH=%252A
Chip set is MT7621A + MT7615E whatever they are as I've not seen these specified before.
No idea what driver can be used other than perhaps mt7621a if there is such a thing.
MrEngman
Disappointed to hear that. It had quite a bit advanced features. Just assumed the compatibility would be similar to the 7811. Appreciate that you looked into it.
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Thu Mar 16, 2017 3:52 am
by chipper
Any chance of a module build for the following kernel happening soon?
Linux CDC-PI1 4.9.14-v7+ #977 SMP Mon Mar 13 18:25:19 GMT 2017 armv7l GNU/Linux
Your wifi module is Bus 001 Device 004: ID 7392:a812 Edimax Technology Co., Ltd
Thanks,
Chipper
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Thu Mar 16, 2017 1:17 pm
by MrEngman
chipper wrote:Any chance of a module build for the following kernel happening soon?
Linux CDC-PI1 4.9.14-v7+ #977 SMP Mon Mar 13 18:25:19 GMT 2017 armv7l GNU/Linux
Thanks,
Chipper
The file is available. Dropbox have made changes to their web site which now makes it impossible to easily download files using wget so I have had to move the files to a new site.
You can install a new script to handle the changes using commands
Code: Select all
sudo wget http://www.fars-robotics.net/install-wifi -O /usr/bin/install-wifi
sudo chmod +x /usr/bin/install-wifi
Use command
to see the info on how you can use the script.
Running command
should automatically select the right driver you need for the kernel you are currently running and download and install it.
MrEngman
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Apr 24, 2017 5:28 pm
by cdclawson
MrEngman wrote:lenin1928 wrote:MrEngman wrote:
Don't know. What driver does it use as I've not seen that wifi mentioned before. What is the driver it uses and what is it's USB ID?
MrEngman
Edimax 7392:b822
Correct model number on edimax's website is EW-7822ULC
I can't find a specific driver for that particular model. I'm guessing it would use 7811's driver since it's similar.
Well, there are a number of wifi modules which include 7822 in the name and they use a variety of different drivers as do devices with 7811 in the name. So trying to guess the driver to use is not much help.
I've spent some time searching on the internet and cannot find any reference to a Linux driver.
I could add the USB code to the driver used by the EW-7811UTC but whether it will work or not I have no idea.
MrEngman
I contacted Edimax and they said it uses a Realtek RTL8822BU chipset. From what I can tell, the Windows driver supports both the 8812AU and 8822BU chipsets. So maybe it would work?
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Apr 24, 2017 6:52 pm
by cdclawson
Okay, I tried editing os_dep/linux/usb_intf.c and adding the 7392:B822 ID to the end of the RTL8812A section (line 360?), recompiled and installed the driver. cfg80211 picked it up.
lsmod output:
Code: Select all
Module Size Used by
8812au 1600099 0
bnep 10340 2
hci_uart 17943 1
btbcm 5929 1 hci_uart
bluetooth 326105 22 bnep,btbcm,hci_uart
ip6table_filter 1349 0
ip6table_mangle 1586 0
ip6table_nat 1713 0
nf_conntrack_ipv6 7858 1
nf_defrag_ipv6 14848 1 nf_conntrack_ipv6
nf_nat_ipv6 5256 1 ip6table_nat
ip6_tables 11701 3 ip6table_filter,ip6table_mangle,ip6table_nat
iptable_filter 1409 0
iptable_mangle 1454 0
iptable_nat 1725 0
nf_conntrack_ipv4 12912 1
nf_defrag_ipv4 1428 1 nf_conntrack_ipv4
nf_nat_ipv4 4992 1 iptable_nat
nf_nat 12375 2 nf_nat_ipv4,nf_nat_ipv6
nf_conntrack 77460 5 nf_nat,nf_nat_ipv4,nf_nat_ipv6,nf_conntrack_ipv4,nf_conntrack_ipv6
ip_tables 11445 3 iptable_filter,iptable_mangle,iptable_nat
x_tables 13165 6 ip6table_filter,ip6table_mangle,ip_tables,iptable_filter,iptable_mangle,ip6_tables
brcmfmac 186403 0
brcmutil 5661 1 brcmfmac
cfg80211 428871 2 brcmfmac,8812au
rfkill 16037 4 cfg80211,bluetooth
snd_bcm2835 20447 2
snd_pcm 75762 1 snd_bcm2835
snd_timer 19288 1 snd_pcm
snd 51908 7 snd_bcm2835,snd_timer,snd_pcm
bcm2835_gpiomem 2976 0
spi_bcm2835 6678 0
i2c_bcm2708 4834 0
bcm2835_wdt 3225 0
uio_pdrv_genirq 3164 0
uio 8000 1 uio_pdrv_genirq
i2c_dev 5859 0
fuse 84037 3
ipv6 347620 90 ip6table_mangle,nf_defrag_ipv6,nf_nat_ipv6,nf_conntrack_ipv6
dmesg output:
Code: Select all
[ 2403.708365] usb 1-1.4: new high-speed USB device number 4 using dwc_otg
[ 2403.809436] usb 1-1.4: New USB device found, idVendor=7392, idProduct=b822
[ 2403.809457] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2403.809470] usb 1-1.4: Product: AC1200 MU-MIMO USB2.0 Adapter
[ 2403.809482] usb 1-1.4: Manufacturer: Realtek
[ 2403.809495] usb 1-1.4: SerialNumber: 123456
[ 2404.967902] RTL871X: module init start
[ 2404.967935] RTL871X: rtl8821au v4.3.14
[ 2404.967949] RTL871X: rtl8821au BT-Coex version = BTCOEX20150128-51
[ 2404.984554] RTL871X: invalid offset:0x42
[ 2405.096447] RTL871X: invalid offset:0x40
[ 2405.141310] RTL871X: rtw_ndev_init(wlan1)
[ 2405.142383] usbcore: registered new interface driver rtl8821au
[ 2405.142396] RTL871X: module init ret=0
However, it doesn't actually seem to work. Trying to scan returns the error:
Code: Select all
pi@raspberrypi3:~ $ sudo iw dev wlan1 scan
command failed: Network is down (-100)
But scanning does work for the built-in wifi. I'm at a loss here. Would it be worthwhile to try loading a Windows driver?
Re: Edimax EW-7811UTC WIFIAC NOT WORKING
Posted: Mon Apr 24, 2017 7:00 pm
by MrEngman
cdclawson wrote:Okay, I tried editing os_dep/linux/usb_intf.c and adding the 7392:B822 ID to the end of the RTL8812A section (line 360?), recompiled and installed the driver. cfg80211 picked it up.
lsmod output:
Code: Select all
Module Size Used by
8812au 1600099 0
bnep 10340 2
hci_uart 17943 1
btbcm 5929 1 hci_uart
bluetooth 326105 22 bnep,btbcm,hci_uart
ip6table_filter 1349 0
ip6table_mangle 1586 0
ip6table_nat 1713 0
nf_conntrack_ipv6 7858 1
nf_defrag_ipv6 14848 1 nf_conntrack_ipv6
nf_nat_ipv6 5256 1 ip6table_nat
ip6_tables 11701 3 ip6table_filter,ip6table_mangle,ip6table_nat
iptable_filter 1409 0
iptable_mangle 1454 0
iptable_nat 1725 0
nf_conntrack_ipv4 12912 1
nf_defrag_ipv4 1428 1 nf_conntrack_ipv4
nf_nat_ipv4 4992 1 iptable_nat
nf_nat 12375 2 nf_nat_ipv4,nf_nat_ipv6
nf_conntrack 77460 5 nf_nat,nf_nat_ipv4,nf_nat_ipv6,nf_conntrack_ipv4,nf_conntrack_ipv6
ip_tables 11445 3 iptable_filter,iptable_mangle,iptable_nat
x_tables 13165 6 ip6table_filter,ip6table_mangle,ip_tables,iptable_filter,iptable_mangle,ip6_tables
brcmfmac 186403 0
brcmutil 5661 1 brcmfmac
cfg80211 428871 2 brcmfmac,8812au
rfkill 16037 4 cfg80211,bluetooth
snd_bcm2835 20447 2
snd_pcm 75762 1 snd_bcm2835
snd_timer 19288 1 snd_pcm
snd 51908 7 snd_bcm2835,snd_timer,snd_pcm
bcm2835_gpiomem 2976 0
spi_bcm2835 6678 0
i2c_bcm2708 4834 0
bcm2835_wdt 3225 0
uio_pdrv_genirq 3164 0
uio 8000 1 uio_pdrv_genirq
i2c_dev 5859 0
fuse 84037 3
ipv6 347620 90 ip6table_mangle,nf_defrag_ipv6,nf_nat_ipv6,nf_conntrack_ipv6
dmesg output:
Code: Select all
[ 2403.708365] usb 1-1.4: new high-speed USB device number 4 using dwc_otg
[ 2403.809436] usb 1-1.4: New USB device found, idVendor=7392, idProduct=b822
[ 2403.809457] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2403.809470] usb 1-1.4: Product: AC1200 MU-MIMO USB2.0 Adapter
[ 2403.809482] usb 1-1.4: Manufacturer: Realtek
[ 2403.809495] usb 1-1.4: SerialNumber: 123456
[ 2404.967902] RTL871X: module init start
[ 2404.967935] RTL871X: rtl8821au v4.3.14
[ 2404.967949] RTL871X: rtl8821au BT-Coex version = BTCOEX20150128-51
[ 2404.984554] RTL871X: invalid offset:0x42
[ 2405.096447] RTL871X: invalid offset:0x40
[ 2405.141310] RTL871X: rtw_ndev_init(wlan1)
[ 2405.142383] usbcore: registered new interface driver rtl8821au
[ 2405.142396] RTL871X: module init ret=0
However, it doesn't actually seem to work. Trying to scan returns the error:
Code: Select all
pi@raspberrypi3:~ $ sudo iw dev wlan1 scan
command failed: Network is down (-100)
But scanning does work for the built-in wifi. I'm at a loss here. Would it be worthwhile to try loading a Windows driver?
A Windows driver will not work, this is Linux.
I have found a driver for the 8822bu. What kernel version are you using so I can try and compile the version you need. The output of command
would be useful.
I won't be able to test it but will let you know when it is available to download in an hour or so after you provide the output from
uname -a.
MrEngman