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Re: [linux-pm] rtl8187 usb wifi adaptor causes suspend hang

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--- On Thu, 1/1/09, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, 1 Jan 2009, Hin-Tak Leung wrote:
> 
> > Also since Alan Stern is now CC'ed, can I ask the
> in-tree skeleton
> > usb driver code updated to reflect the recent
> PM-related changes?
> > There seems to be quite some changes between 2.6.26
> and 2.6.27 .
> 
> It _has_ been updated.  But the USB PM interfaces allow
> several
> different modes of operation, and usb-skeleton can
> illustrate only one
> of them.

So it has... I found Documentation/usb/power-management.txt a bit brief...
and I am planning to read
http://ols.fedoraproject.org/OLS/Reprints-2008/brown-reprint.pdf
which seems to be quite relevant... do you have any recommended readings? I have tried "use the source", but the majority of wireless device drivers don't have any suspend/resume hooks :-). The behavior of 2.6.26pre - somewhere in usbcore forces unloading of all usb device drivers on suspend - was useable.

Hin-Tak


      
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