//sys/class/tty/tty0/subsystem/tty18/subsystem/tty19/subsystem/tty19/subsystem/tty12/subsystem/tty63/subsystem/ttyS0/subsystem/tty47/subsystem/tty50/subsystem/tty21/subsystem/tty21/subsystem/ptmx/subsystem/tty54/subsystem/tty56/uevent