//sys/class/tty/tty21/subsystem/tty0/subsystem/tty8/subsystem/tty/subsystem/tty41/subsystem/tty19/subsystem/tty47/subsystem/ttyS2/subsystem/tty2/subsystem/tty12/subsystem/tty0/subsystem/tty44/subsystem/tty57/subsystem/tty18/subsystem/tty3/subsystem/tty16/subsystem/tty61/uevent