power management on the 8686 chipset

[Bing Zhao]

Hi Andrey,

> -----Original Message-----
> From: libertas-dev-bounces at lists.infradead.org [mailto:libertas-dev-bounces at lists.infradead.org] On
> Behalf Of Andrey Yurovsky
> Sent: Tuesday, August 25, 2009 9:44 AM
> To: Jeff Sutherland
> Cc: libertas-dev at lists.infradead.org
> Subject: Re: power management on the 8686 chipset
> 
> On Tue, Aug 25, 2009 at 9:34 AM, Jeff Sutherland<jeffs at fomsystems.com> wrote:
> > Can someone enlighten me as to why there seems to be such a significant
> > difference between the Marvell driver for the SD8686 and the libertas driver?
> > Or am I just out of date in working with a 2.6.27 kernel?  I need to get
> > power management going, especially would like to experiment with IEEE power
> > saving and background scanning, plus be able to put the 8686 into deep sleep
> > mode via some software mechanism.  (I can't simply power down the module as
> > that would kill the bluetooth part that I need to keep alive when out of wifi
> > range).  Private ioctls aren't implemented in the 2.6.27 version as in the
> > Marvell driver, and iwconfig seems unable to set power modes.  What is it
> > that I am missing here?
> 
> Hi Jeff.  IEEE PS was working for me last time I tried it with 2.6.30
> on both the SDIO and GSPI variants.  Deep Sleep mode is not
> implemented in the libertas driver but there's no reason for why it
> couldn't be added.  Please use compat-wireless or a more recent kernel
> and confirm that IEEE PS is working (or not).
> 

The Deep Sleep support will be added to libertas driver soon.

Regards,

Bing

> Thanks,
> 
>   -Andrey
> 
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