One place I forgot to mention where USB 3.0 LPM needs to be disabled is when we want to suspend the device. That's because the USB 3.0 spec doesn't define any sort of transition from the USB 3.0 link states (U1/U2) to selective suspend (U3). The device has to be active (in U0). Andiry had to do something similar for USB 2.0 LPM. I think that means we have to have a call to disable USB3 LPM in usb_port_suspend, and a call to re-enable it in usb_port_resume. What happens if usb_port_suspend fails? Will usb_port_resume be automatically called? Will usb_port_suspend always be called before usb_port_resume? I'm trying to figure out how to balance the USB 3.0 LPM disable count. Sarah Sharp -- 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
