Re: rtl8187 usb wifi adaptor causes suspend hang

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On Thu, 1 Jan 2009, Hin-Tak Leung wrote:

> 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...

It doesn't cover USB suspend/resume specifically.  But maybe it will 
help you.

> 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.

There aren't any other good documents to read, as far as I know.  
2.6.28 also forces unloading of all USB drivers that don't have 
suspend/resume support -- that was the part of the problem which 
started this thread.

Alan Stern

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