//sys/class/tty/tty21/subsystem/tty7/subsystem/tty42/subsystem/tty18/subsystem/tty16/subsystem/tty47/subsystem/ttyS1/subsystem/tty34/subsystem/tty10/subsystem/tty16/subsystem/ttyS3/subsystem/tty33/subsystem/tty43/uevent