I bought this wifi adaptor from Adafruit (RTl8192cu chipset). I plugged it directly into the raspberrypi and started it up. But I didn't have the wpa_gui app and I guess I didn't have the latest raspian so I tried to get that upgrade first.

I ran

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install raspberrypi* raspi-config

And then I followed the instructions on this page up to the create netdev user step. But I still don't see any adaptors listed when I launch WPA_GUI. I really thought this thing would be plug and play :-( The Adafruit site seemed to imply that ...

Can anyone help? I'm really not good at hardcore Linux hacking.

  • what does the command lsusb show? My unit displays as Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter Mar 25 '13 at 17:39
  • Yes, I see exactly that.
    – Greg
    Mar 25 '13 at 20:05
  • Other things I noticed: WPA_GUI in the status area says "Could not get status from WPA_SUPPLICANT"
    – Greg
    Mar 25 '13 at 20:06
  • Also a message I saw flash by when it was starting up: "couldn't read interfaces file: /etc/network/interfaces". I wonder if that means something?
    – Greg
    Mar 25 '13 at 20:15
  • 1
    Are you running the WPA_GUI as root? i.e. wudo WPA_GUI I setup mine manually using the command line. Mar 25 '13 at 20:19

Yay I got it working! It turns out I had a line split over two lines in the interface file. That's what I get for copying the settings from my phone!

Thanks for all the help.

  • I have exactly the same issue as you right now, with the same adapter according to lsusb. What does your /etc/network/interfaces file look like? I think mine's fine, but I can't be sure. Very frustrating! Jul 25 '13 at 18:09

in my case I had a line starting with wpa-roam while it should be wpa-conf in my /etc/network/interfaces file. After I changed it and did ifdown wlan0 && ifup wlan0, the adapter appeared

i was following this tutorial for the rest of the interfaces file, btw: http://weworkweplay.com/play/automatically-connect-a-raspberry-pi-to-a-wifi-network/

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