//sys/bus/platform/drivers/serial8250/serial8250/tty:ttyS0/subsystem/ptmx/subsystem/tty45/subsystem/tty55/subsystem/tty61/subsystem/tty6/subsystem/tty51/subsystem/tty56/subsystem/tty20/subsystem/tty4/subsystem/tty40/subsystem/tty4/subsystem/tty48/subsystem/tty54/subsystem/tty21/uevent