Issue similar to Ming Lei post of June 26th 2013 USB 2.0 ports "appear" to operate correctly in 2.6.33 and 2.6.39 but not after going to 3.1 See detailed log in below link: https://bugs.launchpad.net/bugs/1210858 Thank you -- 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