//sys/class/tty/tty21/subsystem/tty50/subsystem/tty46/subsystem/ttyS0/subsystem/tty41/subsystem/tty13/subsystem/tty40/subsystem/tty44/subsystem/tty43/subsystem/tty12/subsystem/ttyS3/subsystem/tty6/subsystem/tty52/uevent