Re: [rt2x00-users] [PATCH 2.6.33] rt2x00: Disable powersaving for rt61pci.

[Benoit PAPILLAULT <benoit.papillault@free.fr>]

Gertjan van Wingerde a écrit :
> On 12/13/09 16:18, Ivo van Doorn wrote:
>> On Sunday 13 December 2009, Gertjan van Wingerde wrote:
>>> On 12/13/09 11:15, Ivo van Doorn wrote:
>>>> On Sunday 13 December 2009, Gertjan van Wingerde wrote:
>>>>> We've had many reports of rt61pci failures with powersaving enabled.
>>>>> Therefore, as a stop-gap measure, disable powersaving of the rt61pci
>>>>> until we have found a proper solution.
>>>> This disables powersaving completely, can't we set the default powersaving
>>>> to disabled? That way for people for who it does work, it can still be enabled.
>>>>
>>> Well, when I was looking into this I came up with a number of issues in the code
>>> which makes me believe that it simply isn't working at all.
>>> One example is that the rt61pci devices rely on handling the wakeup interrupt
>>> by the driver to wake up the devices. As far as I can tell there is no handling
>>> of the wakeup interrupt in the rt61pci driver.
>>> That's why I decided to disable it all together, as I don't think it works
>>> properly for anyone (although some people may not really notice it).
>> Ok, but then please disable it for _all_ rt2x00 drivers, or at least all PCI rt2x00 drivers
>> since they would have the same wakeup interrupt requirement.
>>
> 
> I'll see if this will be the case for all PCI rt2x00 devices and adapt for the ones that
> need it. I didn't look into the other devices yet, and ISTR that at least rt2500pci doesn't
> have this requirement.
> 
> ---
> Gertjan.

If the same mecanism is used by rt2800usb, that would explain why power save is
not working as well on my rt2870 USB device. Is there a way to start the device
with power save disabled at startup (so it can be reenabled later to debug it).

Regards,
Benoit