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+What: /sys/devices/platform/<platform>/force_power
+Date: September 2017
+KernelVersion: 4.15
+Contact: "Mario Limonciello" <mario.limonciello@dell.com>
+Description:
+ Modify the platform force power state, influencing
+ Thunderbolt controllers to turn on or off when no
+ devices are connected (write-only)
+ There are two available states:
+ * 0 -> Force power disabled
+ * 1 -> Force power enabled