power management query

[Andrey Yurovsky]

On Wed, Apr 21, 2010 at 5:34 AM, Sriram V <vshrirama at gmail.com> wrote:
> 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.

You have it backward: "power on" turns on IEEE PS, "power off" turns it off.

>>>>   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
>>>
>>>
>>>
>>
>
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