//sys/class/tty/tty21/subsystem/tty27/subsystem/tty0/subsystem/tty42/subsystem/tty26/subsystem/tty54/subsystem/tty2/subsystem/tty12/subsystem/tty41/subsystem/tty33/subsystem/tty34/subsystem/tty41/subsystem/tty47/subsystem/tty40/uevent