Difference between revisions of "Davinci USB Wlan"

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== '''Guide to Compile and use USB WLan Adapter.''' ==
See [http://wiki.davincidsp.com/index.php?title=Davinci_USB_WLan DaVinci USB WLAN article] of [http://wiki.davincidsp.com/index.php?title=Main_Page official DaVinci wiki].
We are using DLink DWL G 122 Rev C (Available in India).
Reason: Somebody who looks for this information will find the wiki by himself
If you are using 2.6.10 Kernel then you need ZHENG path. Search the Mail Archive for ZHENG patch
Downlaod the Diff from this message and apply it.
If you are using 2.6.21 Kernel , it works as it is, No patch is required but you need to enable wlan.
Ive tested thru a Powered Hub, Tested with USB Flash Drive and WLan connected at the same time.
== '''Build Instructions for Kernel.''' ==
make menuconfig
Device Drivers -> Generic Device Options -> Enable Hot plug Firmware loading.
Make sure that usb is enabled in the host mode and jumper on the board is set to host.
Networking -> Enable Generic 802.11 and Enable WEP/Other Schemes you might need.
Rebuild the kernel
== '''Building the RTL Driver''' ==
Step 1:
Goto http://rt2x00.serialmonkey.com/wiki/index.php?title=Main_Page
Download and extract the latest rt73 Driver Source.
Step 2:
#Export the KERNDIR Path
export KERNDIR=/workdir/lsp/ti-davinci/
Step 3:
#Export the build Path
export PATH=/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/bin:/opt/mv_pro_4.0/montavista/pro/bin:$PATH
Step 4:
cd /home/ralink/rt73-cvs-2007070309/Module
Step 5:
make ARCH=arm CROSS_COMPILE=arm_v5t_le- arm
In some cases you might get a compile error in rtusb_data.c:1950 when this happens you need to
fix the code skb->mac_header = skb->data;
          skb->dev = pAd->net_dev;
          memcpy(skb_put(skb, pRxD->DataByteCnt), pHeader, pRxD->DataByteCnt);
          //skb_reset_mac_header(skb); //ORIGINAL
          skb->mac_header = skb->data; //FIX
          skb->pkt_type = PACKET_OTHERHOST;
          skb->pkt_type = PACKET_OTHERHOST;
          skb->protocol = htons(ETH_P_802_2);
          skb->ip_summed = CHECKSUM_NONE;
Step 6: Copy the ko to the target
cp ./rt73.ko /dvevm/nfs/home/
Step 7: Important!!!
Copy the rt73.bin from the build directory to /lib/firmware on the target DVEVM.
Once this is done you are all set to use the driver.
== '''On the target''' ==
  insmod rt73
Insert the USB Wlan adapter, this should be detected and the driver loaded. If this does not
just reboot the EVM and insert the Adapter again.
If you get some Ep0 errors this means that the You did not apply the Zheng Patch.
If you get some firmware error make sure you enabled the hotplug during kernel menuconfig.
if everything was ok then run the following command.
  ifconfig wlan0 up
  iwlist wlan0 scan
This should list the Accesspoints
Then you can attach to the AP using
iwconfig wlan0 essid [APNAME] key [KEY]
  Using DHCP
  dhcpcd -n wlan0
  ifconfig wlan0 netmask broadcast up
Best of Luck.

Latest revision as of 22:07, 12 April 2011

See DaVinci USB WLAN article of official DaVinci wiki. Reason: Somebody who looks for this information will find the wiki by himself