jonas@jonas-Visionbook-14Wr-Plus:~$ sudo modprobe -r 8723du
[sudo] jonas jelszava:       
jonas@jonas-Visionbook-14Wr-Plus:~$ sudo modprobe 8723du ant_sel=0
modprobe: ERROR: could not insert '8723du': Invalid argument
jonas@jonas-Visionbook-14Wr-Plus:~$ sudo iwlist scan | egrep -i 'ssid|quality'
lo        Interface doesn't support scanning.

usb0      Interface doesn't support scanning.

pan1      Interface doesn't support scanning.

jonas@jonas-Visionbook-14Wr-Plus:~$