Re: [PATCH] usb: Add support for runtime power management of the hcd

Oliver Neukum
2009-11-12T07:38:38Z

Am Donnerstag, 12. November 2009 01:33:12 schrieb Matthew Garrett:
> On Wed, Nov 11, 2009 at 06:09:24PM -0500, Alan Stern wrote:
> > That's okay. There's no harm in trying to enable remote wakeup on a
> > device which doesn't support it.
>
> There's harm if we're using the ability to generate remote waleups as a
> condition for whether we can perform runtime pm on the device...

That I would consider backwards. If the user enables runtime power management
of a device, he has to live with remote wakeup being enabled. At most
the kernel might resume and switch off remote wakeup on the device,
but we might also leave this to user space.

Regards
Oliver