power management query

Dan Williams dcbw at redhat.com
Thu Apr 15 11:25:57 EDT 2010


On Thu, 2010-04-15 at 12:45 +0530, Sriram V wrote:
> Hi,
>   I use Linux 2.6.29. I have a libertas module connected over sdio.
>   I  find that there exists no pm support for sdio modules.
>   The usb libertas module has pm support which invokes lbs_suspend to
> put the chip to low power state.
>   Is this intentionally left out? Wont turning off the sdio clocks
> suffice. Does this mean i need to download the firmware again?

The 2.6.33 and later kernels have support for SDIO "deep sleep" in the
Libertas driver.

>   Also, When i browse for a long time - I keep getting the "problem
> fetching packet from firmware" message from libertas driver.

What SD host controller are you using?

Dan

>  Please advice.
> 
> 
>   Thank you for your support.
> 
>   Regards,
>   sriram
> 
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