On Wed, 1 Apr 2015, Oliver Neukum wrote: > On Tue, 2015-03-31 at 13:09 -0400, Alan Stern wrote: > > In other words, if the device is currently in runtime suspend with > > remote wakeup enabled, but device_may_wakeup() returns 0 (so that the > > device should be disabled for wakeup when the system goes into > > suspend), then the prepare callback has to return 0. > > > > Therefore what you need to do here is something like this: > > > > struct usb_device *udev = to_usb_device(dev); > > > > /* Return 0 if the current wakeup setting is wrong, otherwise > > 1 */ > > And the other way round? Your meaning isn't clear. Are you asking what should happen if the device is in runtime suspend with remote wakeup disabled, but device_may_wakeup() returns 1? That case should never happen -- but if it does then the prepare callback should return 0. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
