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+What: /sys/class/devfreq-event/event(x)/
+Date: January 2017
+Contact: Chanwoo Choi <cw00.choi@samsung.com>
+Description:
+ Provide a place in sysfs for the devfreq-event objects.
+ This allows accessing various devfreq-event specific variables.
+ The name of devfreq-event object denoted as 'event(x)' which
+ includes the unique number of 'x' for each devfreq-event object.
+
+What: /sys/class/devfreq-event/event(x)/name
+Date: January 2017
+Contact: Chanwoo Choi <cw00.choi@samsung.com>
+Description:
+ The /sys/class/devfreq-event/event(x)/name attribute contains
+ the name of the devfreq-event object. This attribute is
+ read-only.
+
+What: /sys/class/devfreq-event/event(x)/enable_count
+Date: January 2017
+Contact: Chanwoo Choi <cw00.choi@samsung.com>
+Description:
+ The /sys/class/devfreq-event/event(x)/enable_count attribute
+ contains the reference count to enable the devfreq-event
+ object. If the device is enabled, the value of attribute is
+ greater than zero.