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authorChanwoo Choi <cw00.choi@samsung.com>2017-01-31 16:47:56 +0900
committerMyungJoo Ham <myungjoo.ham@samsung.com>2017-01-31 16:57:05 +0900
commit775fa8c3aa22df720f433e871f94cfb182f5913d (patch)
treee685ff0bf8cc6a2004e559620a0e3312b3bb3813 /Documentation/ABI
parent29b6968b05b6a4a858ba3ce767be1025ab59f2ca (diff)
downloadlinux-775fa8c3aa22df720f433e871f94cfb182f5913d.tar.bz2
PM / devfreq: Simplify the sysfs name of devfreq-event device
This patch just removes '.' character from the sysfs name of devfreq-event device as following. Usually, the subsystem uses the similiar naming style such as {framework name}{Number}. - old : /sys/class/devfreq-event/event.(X) - new : /sys/class/devfreq-event/event(X) And this patch initializes the value of 'event_no' with -1 in order to remove the unneeded operation (-1) when calling the atomic_inc_return(&event_no). Lastly, this patch adds the ABI document for devfreq-event class. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-class-devfreq-event25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-devfreq-event b/Documentation/ABI/testing/sysfs-class-devfreq-event
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index 000000000000..ceaf0f686d4a
--- /dev/null
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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.