I have installed Ubuntu Mate 16.04 on a Raspberry Pi 2. I installed a TL-WN823N USB wireless USB device, however, unlike what I read on the internet about this device and ubuntu, it is in no way detected.
dmesg
tells me its placed at device number 5, that its idVendor 2357 and idProduct 0109. Also; its Realtek.
lsusb
lists the device as 2357:0109 - and thats all (no text / titles).
lsmod
shows nothing wireless related
iw-config
shows only lo - no wireless connection
It seems the device, in no way, is detected for what it is and no drivers are used. The drivers I can find help for, is x86 based, not arm. Any help is really appreciated.
Edit: this is raspberry pi specific. the possible duplicate points to precompiled binaries for x86. Does not necessarily answer this ubuntu+raspberry pi question.