//sys/class/tty/tty25/subsystem/tty4/subsystem/ttyS3/subsystem/tty15/subsystem/tty7/subsystem/tty27/subsystem/tty27/subsystem/tty16/subsystem/tty50/subsystem/ptmx/subsystem/tty20/subsystem/tty54/subsystem/tty46/uevent