On Sunday, 28 October 2007 17:50, Alan Stern wrote:
> On Sun, 28 Oct 2007, Rafael J. Wysocki wrote:
>
> > On Sunday, 28 October 2007 02:00, Oliver Martin wrote:
> > > Hello,
> > >
> > > it seems that there is some dependency missing for CONFIG_USB_SUSPEND.
> > > When I compile a kernel without CONFIG_SUSPEND, USB suspend doesn't work
> > > (or at least doesn't expose its interface to userspace).
> > > /sys/bus/usb/devices/.../power doesn't exist, but it is there when I
> > > enable CONFIG_SUSPEND. So should CONFIG_USB_SUSPEND depend on
> > > CONFIG_SUSPEND (or something selected by CONFIG_SUSPEND)?
> > >
> > > diff between the two configs follows, full config and dmesg for both
> > > kernels is available at http://stud4.tuwien.ac.at/~e0626486/usb_suspend/
> > > (though the dmesg diff doesn't seem to be all that interesting).
>
> Actually I think the problem is the other way around. /sys/.../power
> should exist whenever CONFIG_PM is defined, not just when
> CONFIG_SUSPEND is enabled.
Agreed.
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