I got a BeagleBone Black last week. It seems to be a nice system, with a 1GHz ARM7 processor, ethernet, USB, HDMI and plenty of expansion possibilities, all for $45.
It’s shipping configuration runs the Angstrom Linux distribution. I’ve worked with Angstrom in the past on a Beagleboard used for an embedded application. It seems that the newer Angstrom is using ConnMan 1.4 as the network manager. The version that’s available at the ConnMan site, 1.7, has a command line configuration tool, while the version included in the distribution does not.
I’ve not been able to figure out how to enable wireless networking. Plugging in an ethernet cable just works. Plugging in the USB WiFi adapter gives me a wlan0 device, and the MAC matches that printed on the device.
I’m not able to issue the command “ifup wlan0” without an error. It looks like the connman settings file should enable WiFi by default.
root@beaglebone:~# ifup wlan0 ifup: can't open '/etc/network/interfaces': No such file or directory root@beaglebone:~# ifconfig wlan0 up ifconfig: SIOCSIFFLAGS: No such file or directory root@beaglebone:~# lsusb Bus 001 Device 002: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 "TetraHub" Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 13b1:002f Linksys AE1000 v1 802.11n [Ralink RT3572] root@beaglebone:~# ls -alFR /var/lib/connman/ /var/lib/connman/: total 16 drwxr-xr-x 3 root root 4096 Jan 1 2000 ./ drwxr-xr-x 17 root root 4096 Jan 1 2000 ../ drwx------ 2 root root 4096 Jan 1 2000 ethernet_c8a030a62b80_cable/ -rw------- 1 root root 68 Jan 1 2000 settings /var/lib/connman/ethernet_c8a030a62b80_cable: total 16 drwx------ 2 root root 4096 Jan 1 2000 ./ drwxr-xr-x 3 root root 4096 Jan 1 2000 ../ -rw------- 1 root root 4096 Jan 1 2000 data -rw------- 1 root root 186 Jan 1 2000 settings root@beaglebone:~# cat /var/lib/connman/settings [global] OfflineMode=false [Wired] Enable=true [WiFi] Enable=true
I went so far as to connect to an HDMI monitor with keyboard and mouse and was able to see the graphical connection manager. I tried both with and without having the ethernet cable plugged in, but was not able to click on the “Enable” button on the wireless networks dialog.
I believe that I need to do something with wpa_supplicant to get the password properly accepted on my machine, but I’m more interested in getting the wireless up and running than worrying about getting the security set.
I included the lsusb command in my code listing before because it lists the WiFi device that I’m using. I’m powering the device by a standalone power supply, not via USB, so I believe that I should have enough power to run the wifi. This connection has it connected via an external hub, but I’ve had the same results when connected directly to the board.