After a long time spent installing the required libraries to compile wpa_supplicant, I was finally able to compile wpa_supplicant 2.5 with p2p (WiFi Peer-to-Peer)/WiFi Direct support. Also, I would've preferred to just use the Network Manager for a Wi-Fi (Shared) connection, but the version being used on Udoobuntu2-BETA5 does not support this functionality. I used the following tutorial from TI to connect 2 UDOO NEOs together via WiFi Direct/P2P: http://processors.wiki.ti.com/index...up_-_Connect_in_pbc_.28Push_button_Control.29 My wpa_supplicant.conf file is as follows: ctrl_interface=/var/run/wpa_supplicant ap_scan=1 device_name=NEO-1 device_type=1-0050F204-1 driver_param=use_p2p_group_interface=1 The devices are able to find each other, and after typing: p2p_connect mac_address_of_peer pbc auth go_intent=7 I get the following output: <3>P2P-GO-NEG-SUCCESS However, that's it. I am not able to ping the NEOs from another terminal tab/window so it appears that they are not fully connected. Also, in the tutorial I linked to above, they ping the same device, so obviously if I do that it works (i.e. on device with IP:192.168.3.3, ping 192.168.3.3, but I'm trying to ping 192.168.3.4 from 192.168.3.3 and vice versa). Other potentially relevant details: Each NEO is connected to a separate laptop running Linux (Ubuntu 15.04 on one and Kubuntu 15.04 on the other) via USB I was running wpa_supplicant and wpa_cli on the NEOs via SSH Sometimes I have gotten the following, so I tried appending "join" to the connect command on the client NEO, and I tried setting the go_intent directly, but it yielded the same result: <3>P2P-GROUP-FORMATION-FAILURE
Try doing this: on $ sudo nano /etc/network/interfaces # Loopback network interface auto lo iface lo inet loopback # Primary network interface #auto eth0 #iface eth0 inet dhcp #auto wlan0 #allow-hotplug wlan0 #iface wlan0 inet manual #wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf auto wlan0 allow-hotplug wlan0 iface wlan0 inet static address 192.168.42.22 netmask 255.255.255.0 wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf #iface default inet dhcp allow-hotplug usb0 iface usb0 inet static address 192.168.7.2 netmask 255.255.255.252 on $ sudo nano /etc/gai.cong uncomment line 54 +/-: precedence ::ffff:0:0/96 100 on $sudo nano /etc/wpa_supplicant/wpa_supplicant.conf ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 #network 1 network={ ssid="POSGRADOTEC" key_mgmt=NONE wep_key0=3063743338 priority=50 } #network 2 network={ ssid="BebopDrone-L017881" key_mgmt=NONE priority=100 } #network 3 network={ ssid="InterCable20367581" key_mgmt=NONE wep_key0=mbcd165289d0a wep_key0=6d626364313635323839643061 priority=50 } sudo nano /etc/host clear all, less the first line I have made this and it works...
Thanks, I appreciate it. However, after using all the same configurations as you, I was still unable to create a p2p network. Have you actually been able to get Wi-Fi P2P working on the Neo? If so, what flags are you using/what's the exact commands you use when initializing wpa_supplicant and running wpa_cli? Also, I've decided to try simply setting up one Neo as an Access Point and have the other connect to it via the wpa_gui just to make the connection process a little easier, however I haven't been able to do that either. I would think setting up a device as an AP would be relatively common, but I haven't been able to find much relevant information on the matter. Any tips on creating an AP?
After running: wpa_cli -i wlan0 > p2p_group_add OK <3>P2P-GROUP-STARTED p2p-wlan0-0 GO ssid="DIRECT-7p" freq=2412 passphrase="9l9zMTSD" go_dev_addr=MAC_ADDR sudo wpa_cli -i p2p-wlan0-0 Paul and I are able to get a GO-NEG-SUCCESS, but the boards are still not connected, and 'status' indicates that 'wpa_state=INTERFACE_DISABLED'. After trying again with another round of 'wpa_cli -i wlan0', 'p2p_group_add' and 'wpa_cli -i p2p-wlan0-1', running 'status' again yields different results. > status bssid=5e:31:3e:df:ce:e7 ssid=DIRECT-7p id=0 mode=P2P GO pairwise_cipher=CCMP group_cipher=CCMP key_mgmt=WPA2-PSK wpa_state=COMPLETED p2p_device_address=5c:31:3e:df:ce:e7 address=5e:31:3e:df:ce:e7 The 'DIRECT-7p' ssid is also not visible in the wpa_gui From there, > wps_pbc OK > p2p_find FAIL Any ideas as to what might be contributing to this inconsistency are appreciated.
Due to current time constraints, we have ended up temporarily abandoning WiFi P2P using wpa_supplicant. What worked for me in basically a plug-n-play implementation was simply using the KDE Network Manager included with Kubuntu. I'm currently using 15.04, but I believe the KDE Network Manager has supported it for a little while now. Basically I just set up a Wifi (Shared) network on my laptop and then had the NEO connect to it using wpa_gui (or you can use the default Network Manager on the NEO). It essentially allows you to set-up the device containing KDE NM as an Access Point and then other devices can connect to it (including other phones and tablets!) Once I did this my laptop had an IP Address of 10.42.0.1 and the NEO was able to establish connection and communicate to each other. I have also since discovered that users of other flavours of Ubuntu can install the KDE network manager which includes this support for WiFi (Shared): http://www.linuxslaves.com/2015/08/share-internet-connection-from-ubuntu-to-android.html
