REGADING BACKPORTING WIRELESS DRIVER WL12xx on linux_2.6.18

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Posted by VENKAT47948

on Mar 14 2012 10:17 AM

Hi ,

We are working with WIFI module wl12xx on dm6446 evm boad.i am able to do conenctivity and other things using the latest version of linux. but now i need this wifi driver WL12xx driver on montavista linux(linux_2.6.18).I started to port first sdio driver ,in this case i am getting somany unkown errors and resolving them ,creating kernel built problem.can any one please guide us to backport the driver .

Thanks and regards ,

RamaKrishna

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Posted by Eyal a

on Mar 20 2012 09:14 AM

Verified Answer

Verified by VENKAT47948

Genius9240 points

Hi,

Porting to Linux 2.6.18 is challenging mostly because of the MMC driver, you will have to back port MMC patches from the latest linux kernel to Linux 2.6.18.

As for the WLAN you can use the Compat wireless please try from http://linuxwireless.org/download/compat-wireless-2.6/ in addition please go to http://linuxwireless.org/en/users/Download to understand better about the compat

Regards,

Eyal

Posted by VENKAT47948

on Mar 21 2012 08:21 AM

Intellectual575 points

Hi Eyal,

Thanks for reply. I need some more information on this ,where can i get this MMC/SD patches of linux for montavista linux 2.6.18.

can you please provide some link .

Posted by Eyal a

on Mar 22 2012 16:41 PM

Genius9240 points

Hi,

I dont have the MMC patches for linux 2.6.18 since we support linux 2.6.37 version however please try Linux forums

Regards,

Eyal

Posted by VENKAT47948

on Apr 18 2012 07:39 AM

Intellectual575 points

Hi Eyal,

I have tried to backport the both the driver mmc and wifi(wl12xx) . because the functionalities and using struct is different so i am not able to fix this problem .and that i have searched so may web site for mmc patches but i am not able to find them. please suggest some way to work further.

Thanks and Regards,

Y.V.RamaKrishna.

Posted by Eyal a

on Apr 18 2012 10:18 AM

Genius9240 points

Hi,

There is no easy way to handle it, for WLAN try using compat wireless, its port automatically the WLAN and SDIO wrapper to older Linux releases. For more information refer to http://linuxwireless.org/en/users/Download/hacking#Git_trees_you_will_need

But as far as MMC driver, I am not aware of automatic way to handle it.

Regards,

Eyal

Posted by VENKAT47948

on Sep 07 2012 09:10 AM

Intellectual575 points

Hi Eyal,

I am now working on usb wifi module( Zydas usb wifi ) on dm6446 evm board.we are facing some problem here. These are the debug messages while kernel booting.

=============================================================

usbcore: registered new driver zd1211rw
zd1211rw initialized
zd1211rw 1-1:1.0: zd_netdev_alloc() netdev->flags 0x1002
zd1211rw 1-1:1.0: zd_netdev_alloc() netdev->features 0x00000000
usb 1-1: request_fw_file() fw name zd1211/zd1211b_ub
usb 1-1: request_fw_file() fw name zd1211/zd1211b_uphr
<7>zd1211rw 1-1:1.0: zd_usb_enable_int()
zd1211rw 1-1:1.0: zd_usb_enable_int() submit urb c7274a80
zd1211rw 1-1:1.0: zd_chip_init_hw()
zd1211rw 1-1:1.0: dump_cr() CR_AFTER_PNP 0x00000000
zd1211rw 1-1:1.0: zd_usb_ioread16v() read timed out
zd1211rw 1-1:1.0: zd_ioread32v_locked() error: zd_ioread16v_locked. Error number -110
zd1211rw 1-1:1.0: dump_cr() error reading CR_GPI_EN. Error number -110
zd1211rw 1-1:1.0: zd_usb_disable_int() urb c7274a80 killed
zd1211rw 1-1:1.0: probe() couldn't initialize mac. Error number -110
zd1211rw: probe of 1-1:1.0 failed with error -110
==========================================================================

please help me on this issue .

best regards,

y v ramakrishna