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SubjectRe: [linux-usb-devel] PCI quirks not handled and config space differences on resume from S3
Alan Stern schrieb:
> On Tue, 16 Aug 2005, Carl-Daniel Hailfinger wrote:
>
>
>>Hi,
>>[...]
>>Besides that, a number of drivers do not restore the pci config
>>space of their associated devices properly on resume from S3.
>>
>>These drivers (and associated devices) are:
>>- uhci_hcd (USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller)
>>[...]
>>Diff between "lspci -vvvxxx" before and after resume for all
>>problematic devices on my machine is attached.
>>
>>Are there any patches I can try?
>
>
> The uhci-hcd driver _does_ restore the config space for its devices
> properly.
>
>> [lspci dump]
>
>
> Just because the before and after values are different doesn't mean
> anything is wrong. Those particular bits are set by the hardware in
> response to various events. They are used only by the BIOS, to provide
> USB keyboard and mouse services. They don't affect the device's function
> or the Linux driver at all.

Thanks for the information and sorry for bothering you.

> Alan Stern

Regards,
Carl-Daniel
--
http://www.hailfinger.org/
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