diff options
| author | Arve Hjønnevåg <arve@android.com> | 2008-10-09 21:01:46 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2011-06-14 09:08:42 -0700 |
| commit | 47dfb46bf609015a383206417c8e596df1d84017 (patch) | |
| tree | 19a77e0c978ccff1b9af287d86d8feb6539f2fe7 /kernel/power/main.c | |
| parent | b0dc34309fc9f98de480aa383c7f6f035ce3b54a (diff) | |
PM: Add user-space wake lock api.
This adds /sys/power/wake_lock and /sys/power/wake_unlock.
Writing a string to wake_lock creates a wake lock the
first time is sees a string and locks it. Optionally, the
string can be followed by a timeout.
To unlock the wake lock, write the same string to wake_unlock.
Change-Id: I66c6e3fe6487d17f9c2fafde1174042e57d15cd7
Diffstat (limited to 'kernel/power/main.c')
| -rw-r--r-- | kernel/power/main.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index dad38e2f64b..ff29679510d 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -308,6 +308,11 @@ power_attr(pm_trace_dev_match); #endif /* CONFIG_PM_TRACE */ +#ifdef CONFIG_USER_WAKELOCK +power_attr(wake_lock); +power_attr(wake_unlock); +#endif + static struct attribute * g[] = { &state_attr.attr, #ifdef CONFIG_PM_TRACE @@ -320,6 +325,10 @@ static struct attribute * g[] = { #ifdef CONFIG_PM_DEBUG &pm_test_attr.attr, #endif +#ifdef CONFIG_USER_WAKELOCK + &wake_lock_attr.attr, + &wake_unlock_attr.attr, +#endif #endif NULL, }; |