Hi! when I execute the command below: "ls /sys/bus/usb/devices/" I get: "1-0:1.0 1-1 1-1:1.0 2-0:1.0 2-1 2-1.1 2-1:1.0 2-1.1:1.0 2-1.5 2-1.5:1.0 2-1.5:1.1 usb1 usb2" the output format is bus-port.port:config.interface I want to know whether the port number is fixed after I reboot machine time by time. And if it is fixed, then what make it. Thanks! -- 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