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+Date: January 2013
+Contact: Rafael J. Wysocki <email@example.com>
+ The /sys/devices/.../resource_in_use attribute is only present
+ for device objects representing ACPI power resources.
+ If present, it contains a number (0 or 1) representing the
+ current status of the given power resource (0 means that the
+ resource is not in use and therefore it has been turned off).
+ This attribute is read-only.