gpiod_export

gpiod_export是一个函数，实际上是调用了gpiod_export()函数，该函数的定义在引用\[1\]中。gpiod_export函数是用来导出GPIO口的，它会将指定的GPIO口导出到/sys/class/gpio/目录下的export文件中。具体来说，它会调用gpiod_request()函数来申请GPIO口，并调用gpiod_export()函数将GPIO口导出。在导出过程中，还会设置一些标志位，如FLAG_SYSFS。总之，gpiod_export函数是用来在/sys/class/gpio/目录下导出GPIO口的。
#### 引用[.reference_title]
- *1* [再说sysfs文件系统的gpio export功能](https://blog.csdn.net/lpwsw/article/details/120316161)[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^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* *3* [Linux Kernel gpio export功能](https://blog.csdn.net/encourage2011/article/details/73865091)[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^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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