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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.

=== Feedback and Contributing ===At any point, if you see a mistake you can contribute to this This How-Tois 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

SDIO card should be showed after the image is downloaded to the board. <pre>mmc1: new SDIO card at address 0001</pre>

To make the SDIO WIFI module work load the libertas_sdio module <pre># modprobe libertas_sdio

</pre> Now you can connect this wifi module to an AP. First of all, you'll check if your devices is detected. <pre># iwconfig

</pre>Next, you will set up the interface <pre># ifconfig eth1 up

</pre>and you can scan for an AP <pre># iwlist eth1 scan

</pre>Now, is time to associate to your AP <pre># iwconfig eth1 txpower auto essid MyPlace channel 4

</pre>and get and ip address <pre># udhcpc -i eth1

</pre>Last, you can test the network interface. <pre># ping -c 1 192.168.10.1

</pre>== How to debug the libertas driver ==

FromTo enable debug on the wireless (libertas) driver you may write to the libertas_debug '/sys' file: http://wiki.laptop.org/go/Libertas_Debug

To enable debug on the wireless (libertas) driver you may write to the libertas_debug echo '/sys' file: echo <i>LBS_DEBUG_FLAGS</i> > '' &gt; /sys/module/libertas/parameters/libertas_debug

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).

<table border{| cellspacing="12" cellpadding="2" cellspacingborder="21"><tr><th>|-! Debug Flag Name</th><th>! Flag Hex value</th><th>! Description(*)</th></tr><tr><td>|-| LBS_DEB_ENTER</td><td>| 0x00000001<td>| function entrance</td><tr><td>|-| LBS_DEB_LEAVE</td><td>| 0x00000002<td>| function exit</td></tr><tr><td>|-| LBS_DEB_MAIN</td><td>| 0x00000004<td>| main libertas library code</td></tr><tr><td>|-| LBS_DEB_NET</td><td>| 0x00000008<td>| interaction with network subsystem</td></tr><tr><td>|-| LBS_DEB_MESH</td><td>| 0x00000010<td>| wireless mesh network</td></tr><tr><td>|-| LBS_DEB_WEXT</td><td>| 0x00000020<td>| interaction with wireless extensions</td></tr><tr><td>|-| LBS_DEB_IOCTL</td><td>| 0x00000040<td>| misc IOCTLs</td></tr><tr><td>|-| LBS_DEB_SCAN</td><td>| 0x00000080<td>| scanning for APs</td></tr><tr><td>|-| LBS_DEB_ASSOC</td><td>| 0x00000100<td>| associating ton an AP</td></tr><tr><td>|-| LBS_DEB_JOIN</td><td>| 0x00000200<td>| joining an IBSS?</td></tr><tr><td>|-| LBS_DEB_11D</td><td>| 0x00000400<td>| 802.11d country settings</td></tr><tr><td>|-| LBS_DEB_DEBUGFS</td><td>| 0x00000800<td>| interaction with the debugfs subsystem</td></tr><tr><td>|-| LBS_DEB_ETHTOOL</td><td>| 0x00001000<td>| interaction with ethtool subsystem</td></tr><tr><td>|-| LBS_DEB_HOST</td><td>| 0x00002000<td>| communication between host and wlan chip</td></tr><tr><td>|-| LBS_DEB_CMD</td><td>| 0x00004000<td>| command and response processing</td></tr><tr><td>|-| LBS_DEB_RX</td><td>| 0x00008000<td>| packet reception</td></tr><tr><td>|-| LBS_DEB_TX</td><td>| 0x00010000<td>| packet transmission</td></tr><tr><td>|-| LBS_DEB_USB</td><td>| 0x00020000<td>| interaction with USB subsystem</td></tr><tr><td>|-| LBS_DEB_CS</td><td>| 0x00040000<td>| interaction with card services subsystem</td></tr><tr><td>|-| LBS_DEB_FW</td><td>| 0x00080000<td>| firmware downloading</td></tr><tr><td>|-| LBS_DEB_THREAD</td><td>| 0x00100000<td>| main libertas worker thread</td></tr><tr><td>|-| LBS_DEB_HEX</td><td>| 0x00200000<td>| turn on detailed hex dumps</td></tr><tr><td>|-| LBS_DEB_SDIO</td><td>| 0x00400000<td>| interaction with SDIO subsystem</td></tr><tr><td |-| colspan="3>" | (*) Description taken from [http://git.infradead.org/?p=users/schurig/libertas-tools.git;a=blob_plain;f=lbsdebug/lbsdebug.c;hb=master lbsdebug.c] (by Holger Schurig)</td></tr></table>|}

Example:<br>To activate scanning (LBS_DEB_SCAN), associating (LBS_DEB_ASSOC), command (LBS_DEB_CMD) and host (LBS_DEB_HOST): echo 0x6180 > &gt; /sys/module/libertas/parameters/libertas_debug The output will be post to the kernel ring buffer. You can display it with the dmesg command:

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 &gt; /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>

[[Category:How to forgeHow_to_forge|Wireless]]