On Wed, 21 Jan 2015, Rafael J. Wysocki wrote: > > > For example, would it help to add > > > > > > device_set_wakeup_capable(hcd->self.controller, 0); > > > > > > somewhere at the beginning of isp1760_hc_setup()? > > > > At the moment it wouldn't help. The problem isn't that we want to > > avoid suspending the controller or its root hub; the problem is that we > > want to avoid suspending a device plugged into the root hub if that > > device needs to be enabled for wakeup. This is because when the device > > sends its wakeup signal, the controller won't receive it. > > I understand that. > > Well, OK, so there is the case when the controller is not suspended, but it > doesn't generate interrupts for wakeup signals from devices, which generally > is different from the case when the controller itself is suspended too that > requires it to be wakeup-capable for things to work. > > An additional flag may still be better then. I'll work on it when I have some spare time. Of course, it would be better if somebody could add the proper wakeup-detect code to the isp1760-hcd driver... 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
