MuRata WiFi Module with Marvell 88w8686

claud_yu claud_yu at
Tue Apr 1 05:25:15 EDT 2008

Hi Julien , 

 I add some extra code to trace the driver behavior.
After the helper download
(if_sdio_prog_helper,if_sdio.c) , the driver will wait
the helper booting and read the next req_size from
88w8686 to download real firmware. And I get first
legal value 16.  After download 16 byte to 88w8686 and
query next download size (req_size). I get a illegal
value 17. The libertas driver show the 88w8686 will
use LSB of req_size to indicate the error from helper.

And I try to verify the WiFi module with IBM Thinkpad
X60 with linux 2.6.24 ( with ricon sdhci SD controllor
). And the module seem broken after insert into X60
notebook. That will delay my work.


--- julien.boibessot at 說:

> Hi Claud,
> Quoting claud_yu <claud_yu at>:
> >
> > The message show the helper download success and
> get
> > one error from helper during download the
> firmware.
> >
> Which kind of error did you get after the "helper"
> download ?
> I'm trying to have the libertas driver running in
> SPI mode with a 8686 on my
> i.MXL platform and it seems that I may have similar
> problem:
> I thought it was due to SPI mode usage, but now I've
> readen your post, I'm
> seriously thinking it could be a "helper" problem,
> as I downloaded it from
> Marvell website too...
> Regards,
> Julien
> _______________________________________________
> libertas-dev mailing list
> libertas-dev at


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