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== How to setup Marvell 88w8686 SDIO wifi ==
=== Overview of How-To ===This How-To is meant to be a starting point for people to learn setup the wifi on IGEP v2 devices as quickly and easily as possible.
=== Setup basics Feedback and Contributing ===
At any point, if you see a mistake you can contribute to this How-To. === Setup basics === *libertas: Marvell Libertas 8385/8686/8688 SDIO 802.11b/g card
*firmware: 9.70.3p24 ( download from http://extranet.marvell.com/drivers/driverDisplay.do?driverId=203 )
SDIO card should be showed after the image is downloaded to the board. <pre>mmc1: new SDIO card at address 0001</pre>
The firmware binaries sd8686_helper.bin and sd8686.bin should be in /lib/firmware directory.
To make the SDIO WIFI module work load the libertas_sdio module <pre># modprobe libertas_sdio
libertas_sdio: Libertas SDIO driver
libertas: PREP_CMD: command 0x00a3 failed: 2
libertas: eth1: Marvell WLAN 802.11 adapter
</pre> Now you can connect this wifi module to an AP. First of all, you'll check if your devices is detected. <pre># iwconfig
eth1 IEEE 802.11b/g ESSID:""
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
</pre>Next, you will set up the interface <pre># ifconfig eth1 up
eth1 Link encap:Ethernet HWaddr 00:13:E0:C3:0C:3C
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
</pre>and you can scan for an AP <pre># iwlist eth1 scan
Cell 04 - Address: 00:18:84:81:46:E2
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
</pre>Now, is time to associate to your AP <pre># iwconfig eth1 txpower auto essid MyPlace channel 4
eth1 IEEE 802.11b/g ESSID:"MyPlace"
Rx invalid nwid:0 Rx invalid crypt:3109 Rx invalid frag:0
Tx excessive retries:13 Invalid misc:3315 Missed beacon:0
</pre>and get and ip address <pre># udhcpc -i eth1
udhcpc (v1.9.1) started
Sending discover...
Lease of 192.168.10.216 obtained, lease time 43200
adding dns 192.168.10.1
</pre>Last, you can test the network interface. <pre># ping -c 1 192.168.10.1
PING 192.168.10.1 (192.168.10.1): 56 data bytes
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 16.327/16.327/16.327 ms
</pre>== How to debug the libertas driver ==
You can calculate the value for <i>''LBS_DEBUG_FLAGS</i> '' using the table bellow (just add up the values for the flags you want to activate).
<br> Example:<br> To activate scanning (LBS_DEB_SCAN), associating (LBS_DEB_ASSOC), command (LBS_DEB_CMD) and host (LBS_DEB_HOST):
dmesg
You can also use the lbsdebug tool, from Holger Shurig, git tree available [http://git.infradead.org/?p=users/schurig/libertas-tools.git;a=blob_plain;f=lbsdebug/lbsdebug.c;hb=master here]. == How to get WIFI active upon system start (using a WPA2 access-point) == Tested configuration:*IGEP v3 board *Ubuntu Linux provided on the SD-card *WIFI access point with WPA-PSK encryption method. Basically you have to create/modify two files: #create file /etc/wpa_supplicant.conf#modify /etc/network/interfaces Here are the details. To create /etc/wpa_supplicant.conf do: <pre>wpa_passphrase "your SSID" yourPassword > /etc/wpa_supplicant.conf</pre> Now add the following lines at the end of this file: <pre>proto=WPA2key_mgmt=WPA-PSKpairwise=CCMP</pre> Then modify /etc/network/interfaces Change the line <pre>auto eth0 into #auto eth0</pre> Add the next lines (replace eth2 by your wifi interface): <pre>iface eth2 inet dhcpwpa-conf /etc/wpa_supplicant.conf</pre>
To check if your /etc/wpa_supplicant.conf file is correct you can type
<pre>wpa_supplicant -ieth2 -c/etc/wpa_supplicant.conf -d</pre>
[[Category:How to forgeHow_to_forge|Wireless]]