https://blog.youkuaiyun.com/Yitzhanzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Yitzhan/article/details/147105475https://blog.youkuaiyun.com/Yitzhan/article/details/147105475YitzhanFri, 11 Apr 2025 09:15:00 +0800https://blog.youkuaiyun.com/Yitzhan/article/details/147104911https://blog.youkuaiyun.com/Yitzhan/article/details/147104911YitzhanThu, 10 Apr 2025 09:15:00 +0800https://blog.youkuaiyun.com/Yitzhan/article/details/146129938https://blog.youkuaiyun.com/Yitzhan/article/details/146129938YitzhanSun, 09 Mar 2025 16:00:00 +0800https://blog.youkuaiyun.com/Yitzhan/article/details/146130212https://blog.youkuaiyun.com/Yitzhan/article/details/146130212YitzhanSun, 09 Mar 2025 12:13:54 +0800> MINORBITS)) // 获取主设备号。以下是一个简单的字符设备驱动程序示例，展示了如何注册和注销设备号、创建和添加字符设备，并在读写操作中进行用户空间和内核空间的数据拷贝。这个示例代码展示了如何创建一个简单的字符设备驱动程序，包括设备号的注册和注销、字符设备的创建和添加、以及读写操作中的数据拷贝。这将在 /dev 下创建一个名为 haha0 的字符设备文件，主设备号为250，次设备号为0。]]>https://blog.youkuaiyun.com/Yitzhan/article/details/146129969https://blog.youkuaiyun.com/Yitzhan/article/details/146129969YitzhanSun, 09 Mar 2025 12:01:52 +0800https://blog.youkuaiyun.com/Yitzhan/article/details/146129691https://blog.youkuaiyun.com/Yitzhan/article/details/146129691YitzhanSun, 09 Mar 2025 11:51:24 +0800