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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-10-12 22:30:57 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-10-12 22:30:57 +0200
commita5e22db2689dc717cc3aaeb0c92c3f5445c5ea1f (patch)
treec8348f02c4e31c8130ad9b0ea3afa0f11a31dbcd /Documentation
parent2cef548adf58e9a58a411948b98edb9a3980dbe6 (diff)
parent7236214c88454d96de7633e07a8314644d529f26 (diff)
Merge back earlier 'pm-sleep' material for v4.4.
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-power12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index f4551816329e..50b368d490b5 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -256,3 +256,15 @@ Description:
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.
+
+What: /sys/power/pm_wakeup_irq
+Date: April 2015
+Contact: Alexandra Yates <alexandra.yates@linux.intel.org>
+Description:
+ The /sys/power/pm_wakeup_irq file reports to user space the IRQ
+ number of the first wakeup interrupt (that is, the first
+ interrupt from an IRQ line armed for system wakeup) seen by the
+ kernel during the most recent system suspend/resume cycle.
+
+ This output is useful for system wakeup diagnostics of spurious
+ wakeup interrupts.