POWER_OFF和POWER_OFF_HOLD

回答: POWER_OFF和POWER_OFF_HOLD是与关机按钮相关的两个功能。在引用\[1\]中，SYSCALL_DEFINE4()函数最终调用了kernel_power_off()函数，而kernel_power_off()函数又调用了pm_power_off_prepare()和pm_power_off()函数。其中，pm_power_off_prepare()函数用于在关机前完成一些必要的准备工作，而pm_power_off()函数则是实际执行关机操作的函数。\[1\]\[3\]另外，在引用\[2\]中，getPowerButtonValue()函数用于获取POWER_BUTTON_LONG_PRESS_DEFAULT_VALUE_RESOURCE的值，该值用于定义长按关机按钮的行为。如果该值与Assist设置匹配，则会回退到全局操作面板或电源菜单，具体取决于它们各自的设置。\[2\]所以，POWER_OFF和POWER_OFF_HOLD是关机按钮的两种不同行为。
#### 引用[.reference_title]
- *1* *3* [kernel power off流程分析](https://blog.csdn.net/tianshiyalin/article/details/17920185)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [RK3568 Android12 长按power键功能设置](https://blog.csdn.net/terry_xiwang/article/details/122721784)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
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