diff options
| author | Arve Hjønnevåg <arve@android.com> | 2008-10-09 21:01:46 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:37:52 -0800 |
| commit | 3bd252058e9743d2426a3ffec1b75722721ef0a6 (patch) | |
| tree | dddd54d096bbfb0e8beaf1e1439522d0012b21cb /kernel/power/power.h | |
| parent | b766d576834f8f61dbc47e0e8e5cddf035a4bd69 (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/power.h')
| -rw-r--r-- | kernel/power/power.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index 491c2db0ef8b..b6b9006480ff 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -253,6 +253,17 @@ extern struct wake_lock main_wake_lock; extern suspend_state_t requested_suspend_state; #endif +#ifdef CONFIG_USER_WAKELOCK +ssize_t wake_lock_show(struct kobject *kobj, struct kobj_attribute *attr, + char *buf); +ssize_t wake_lock_store(struct kobject *kobj, struct kobj_attribute *attr, + const char *buf, size_t n); +ssize_t wake_unlock_show(struct kobject *kobj, struct kobj_attribute *attr, + char *buf); +ssize_t wake_unlock_store(struct kobject *kobj, struct kobj_attribute *attr, + const char *buf, size_t n); +#endif + #ifdef CONFIG_EARLYSUSPEND /* kernel/power/earlysuspend.c */ void request_suspend_state(suspend_state_t state); |