OPPO Kernel Craftsman
Sep 27, 2020 · Mobile Development
Understanding the Android Kernel Suspend Process and Power Management
The Android kernel suspend process begins when user‑space writes “mem” to /sys/power/state, triggering an autosuspend loop that validates wakeup_count, logs pending wakeups, freezes filesystems and threads, sequentially calls device suspend callbacks, prepares platform‑specific operations, disables CPUs and interrupts, saves core state, and finally enters the low‑power s2ram state.
AndroidKernelWakeup Count
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