将WiFi加密狗与Beaglebone Black集成

Question

I am working on beaglebone black trying to integrate TP link TL-WN721N Wifi dongle which uses atheros driver. I am using linux 3.2 kernel with ti-sitara rootfs

The problem is when is type the command

  wpa_supplicant -Dwext -i wlan0 -c /etc/wpa_supplicant.conf

it shows Successfully initialised wpa_supplicant

but it gets stuck there and i have to give ctrl+c to exit from that ,after that i gave

 ifup wlan0

the response was

  Sending discover...
  Sending discover...
  Sending discover...
  No lease, failing

after this I repeated the step for wpa_supplicant this time also it gets stuck and when I gave

ifup wlan0

this time it got the IP and was able to ping..........

This cycles were seemed to repeat when I tried connecting any-other wifi networks ie: wpa_supplicant gets stuck two times and on the second attempt of ifup wlan0 only i will be able to get IP

here is my /etc/wpa_supplicat.conf file

network={

  ssid="UTStarcom" #psk="123force" psk=44d83e5c96bd39f47b54625d80b80c79d5b14430d424fdf6636365901b01ab14 

}

and my /etc/network/interfaces

  auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.2.30 netmask 255.255.255.0 gateway 192.168.2.1 allow-hotplug wlan0 auto wlan0 iface wlan0 inet dhcp wpa-driver wext wpa-conf /etc/wpa_supplicant.conf 

Can you suggest any solutions for this isuue?

Answer 1

No! Don't Ctrl+C to terminate the wpa_supplicant, it is the daemon there to help you keep connection with the AP and exchange new keys with AP. Try run wpa_supplicant with -B to make it run in background.

You may also consider add control interface and control it over wpa-cli.

Answer 2

lsusb to find your usb client. Then, update your system. Use apt-cache search "Your USB Client". If you get a read-out, get back to me. Oh and you need to supply your BBB with the 5V jack instead of the USB to computer.

Seth