//sys/class/tty/tty21/subsystem/tty13/subsystem/tty6/subsystem/tty41/subsystem/tty50/subsystem/tty56/subsystem/tty3/subsystem/tty47/subsystem/tty4/subsystem/tty60/subsystem/tty48/subsystem/tty3/subsystem/tty3/subsystem/tty9/subsystem/tty5/uevent