On Thu, 8 Dec 2011, Sebastian Andrzej Siewior wrote: > UAS supports command queues only if running in SuperSpeed aka USB3.0. If Strictly speaking, this isn't true. UAS allows command queuing at all speeds. It's just your driver that doesn't support it. > the device is connected at USB2.0 speed aka HighSpeed command queuing is > not supported. 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