Broadcasting using Marvell 88W8686 Linux Driver

Vivek Raghunathan nkrvivek at gmail.com
Thu Feb 24 16:16:26 EST 2011


You can get that information from the module vendor or from Marvell
directly. Usually they will provide a shell script with all the commands and
values to be written

With Best Regards,
Vivek Raghunathan



On Thu, Feb 24, 2011 at 10:08 AM, Amyuni Development Team <
devteam at amyuni.com> wrote:

> We've done a bit of progress on this issue. Now we have the wlanconfig
> utility
> which allows us to read/write the MAC, BPP and RF registers. Is there any
> documentation on what values to write to these registers for continuous
> transmission from the WiFi chip?
>
> -----Original Message-----
> From: Vivek Raghunathan [mailto:nkrvivek at gmail.com]
> Sent: Monday, February 14, 2011 9:29 AM
> To: Amyuni Development Team
> Cc: libertas-dev at lists.infradead.org
> Subject: Re: Broadcasting using Marvell 88W8686 Linux Driver
>
> On Sat, Feb 12, 2011 at 3:05 PM, Amyuni Development Team
> <devteam at amyuni.com> wrote:
> >
> > Hello,
> >
> > We need to know if there is a command to broadcast continuous modulated
> > waveform using the libertas driver for Marvell 88W8686 (SDIO driver.) The
> > broadcast is used in test laboratories to obtain FCC certification on any
> > product that contains this WiFi chip. The idea is to continuously
> broadcast
> > a constant signal on a given channel and measure the results using
> spectrum
> > analyzers.
>
> You need to get an utility called "wlanconfig" from your wifi vendor
> (either from Marvell directly or a third party module maker) and port
> couple of iwpriv API's such as rdmac, wrmac, rdbbp, wrbbp to read and
> write the MAC, BBP and RF registers from the card.  These commands
> take one parameter that specifies the offset location that is to be
> read or written.
>
> >
> > We tried using the Linux netcat command to do a broadcast, but this gave
> us
> > only an approximation of the required signal which must be perfectly
> > continuous.
>
> Unless you port those iwpriv commands, you can't achieve continuous
> transmission required for FCC certification. Netcat acts as a simple
> utility which reads and writes data across network connections, using
> TCP or UDP transport protocols. It doesn't change the chip firmware
> behavior in any manner. You can contact any third party or a libertas
> developer to do the porting for you, if you don't have the resources
> to do that.
>
> >
> > Thank you for your help.
> >
> > Amyuni Dev. Team
> >
> >
> >
> >
> >
> > _______________________________________________
> > libertas-dev mailing list
> > libertas-dev at lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/libertas-dev
> >
>
>
>
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