misc驱动(miscellaneous device)

https://gitee.com/mirrors/Linux/blob/v6.4/include/linux/miscdevice.h 79行

结构体 miscdevice

 struct miscdevice  {
	int minor;
	const char *name;
	const struct file_operations *fops;
	struct list_head list;
	struct device *parent;
	struct device *this_device;
	const struct attribute_group **groups;
	const char *nodename;
	umode_t mode;
};