Two interfaces but one USB device

[mrkskwsnck]

Hello to all,

I am happy to successfully compiling and running this kernel driver for my RTL8192DU device, which is an no name USB device, on my Manjaro Linux system.

The only thing that bothers me is that I have two wireless interfaces in my network manager, which is somewhat annoying -_-

Also $(iwconfig) provides the following output with two wireless interfaces.

lo        no wireless extensions.

eno1      no wireless extensions.

wlp0s20u4  IEEE 802.11gn  ESSID:"wiesbaden.freifunk.net"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 7A:12:B6:76:4A:68   
          Bit Rate:144.4 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=98/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wlan0     IEEE 802.11gn  ESSID:"wiesbaden.freifunk.net"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 7A:12:B6:76:4A:68   
          Bit Rate:144.4 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=100/100  Signal level=98/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Why is that? Hopefully someone can provide the answer and also a fix.

Thanks in advance and best regards!

[lwfinger]

This is a feature, not a bug. The default configuration is set to provide dual interfaces so that one can be used as an AP, and the other as a STA. To remove the extra one, go to file include/autoconf.h and change the statement defining CONFIG_CONCURRENT_MODE Setting that macro to 0 will eliminate the extra interface.

[mrkskwsnck]

Indeed, I did not know that. How do I know which one is A(ccess)P(oint) and/or STA(tion)/Client? And which should I use?

[lwfinger]

They are identical. You choose.

[mrkskwsnck]

Thank you for the clarification.