Re: USB_SUSPEND needs SUSPEND?

[Alan Stern <stern@rowland.harvard.edu>]

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.

Alan Stern

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/