//sys/class/tty/tty21/subsystem/tty50/subsystem/tty46/subsystem/ttyS0/subsystem/tty41/subsystem/tty45/subsystem/tty23/subsystem/tty/subsystem/tty39/subsystem/tty17/subsystem/tty13/subsystem/tty12/subsystem/tty35/subsystem/tty55/subsystem/tty3/uevent