Re: [linux-usb-devel] PCI quirks not handled and config space differences on resume from S3

[Carl-Daniel Hailfinger <c-d.hailfinger.devel.2005@gmx.net>]

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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