On Mon, 9 Feb 2015, Huang Rui wrote: > Hi, > > Do you have any trick to downgrade one USB3 capacity device from super > speed mode to high speed mode on xhci port via host side? Connect it to the host by a USB-2 cable. 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