path: root/Documentation/ABI/testing/sysfs-power
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Diffstat (limited to 'Documentation/ABI/testing/sysfs-power')
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 31725ffeeb3..217772615d0 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -231,3 +231,16 @@ Description:
Reads from this file return a string consisting of the names of
wakeup sources created with the help of /sys/power/wake_lock
that are inactive at the moment, separated with spaces.
+What: /sys/power/pm_print_times
+Date: May 2012
+Contact: Sameer Nanda <>
+ The /sys/power/pm_print_times file allows user space to
+ control whether the time taken by devices to suspend and
+ resume is printed. These prints are useful for hunting down
+ devices that take too long to suspend or resume.
+ Writing a "1" enables this printing while writing a "0"
+ disables it. The default value is "0". Reading from this file
+ will display the current value.