//sys/class/tty/tty21/subsystem/tty52/subsystem/tty52/subsystem/ttyS2/subsystem/console/subsystem/tty47/subsystem/tty42/subsystem/tty31/subsystem/tty63/subsystem/tty9/subsystem/tty26/subsystem/tty19/subsystem/tty22/subsystem/tty42/uevent