ioctl_magic

ioctl_magic 是一个在 ioctl 函数中使用的魔术数。在引用中提到的 ioctl 函数的实现中，命令的执行是通过一个 switch 语句来实现的。而 ioctl_magic 则是作为命令的一个参数传递给 ioctl 函数。这个参数可以是一个整数，也可以是一个指针，具体的使用方式取决于对应的设备驱动。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [linux设备驱动 ioctl](https://blog.csdn.net/u010703935/article/details/11602351)[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^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *3* [字符设备之ioctl](https://blog.csdn.net/tang_jin_chan/article/details/17102039)[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^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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