On Thu, 22 Jun 2006, Jiri Slaby wrote:
> > ages. The "bogus requests" are attempts by the user to suspend a USB
> > device (by writing to /sys/devices/.../power/state) without first
> > suspending all its children and interfaces.
> >
> > (This can't happen when doing a global suspend because the PM core
> > iterates through the entire device tree. It matters only for "runtime" or
> > "selective" suspend.)
>
> But everything I did is:
> echo reboot > /sys/power/disk
> echo disk > /sys/power/state
>
> No writing anywhere else.
You misunderstood. I meant that attempts to suspend a USB device without
first suspending all its children and interfaces can't happen when doing a
global suspend. That's still true.
Your problem occurred because even though the PM core did _attempt_ to
suspend the new children added by Greg's patch, it didn't _succeed_
because the patch did not provide suspend or resume methods.
Alan Stern
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