2021-03-10 15:10:19 +08:00
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# Linux 电源管理子系统
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## 1.用户态控制方法
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2021-03-09 16:44:08 +08:00
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```bash
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2021-03-10 15:10:19 +08:00
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echo standby > /sys/power/state
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2021-03-09 16:44:08 +08:00
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# Suspend to RAM
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echo "mem" > /sys/power/state
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```
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2021-03-10 15:10:19 +08:00
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## 2.源码分析
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### 2.1.Suspend
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Suspend 主流程源码在 \<kernel source\>/kernel/power/suspend.c 文件中。主要调用流程如下：
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2021-03-10 17:19:34 +08:00
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## 3.外部参考资料
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1. [Linux Suspend过程](https://www.cnblogs.com/sky-heaven/p/5578323.html#_label3)
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