power management query

[Sriram V]

Hi,
On Fri, Apr 16, 2010 at 2:38 PM, Sriram V <vshrirama at gmail.com> wrote:
> On Thu, Apr 15, 2010 at 8:55 PM, Dan Williams <dcbw at redhat.com> wrote:
>> 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.
>>
>

Thank you, I tried to back the driver from 2.6.33 to 2.6.29.
$ iwconfig eth0 power off -- Does not result in any power saving at all.

However, when i try to do a

$iwconfig eth0 power period 5
Error for wireless request "Set Power Management" (8B2C) :
    invalid argument "5".

Should i also update the upper layers as well? has anyone tried this
on a 2.6.29 kernel?


Regards,
sriram



>>>   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?
>>
>
> I use OMAP3. I have turned just off the sdio clocks during suspend
> I will look into the 2.6.33 kernel and try to back port it.
>
>
> Thank you,
>
>
> Regards,
> sriram
>
>
>> Dan
>>
>>>  Please advice.
>>>
>>>
>>>   Thank you for your support.
>>>
>>>   Regards,
>>>   sriram
>>>
>>> _______________________________________________
>>> libertas-dev mailing list
>>> libertas-dev at lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/libertas-dev
>>
>>
>>
>