【實踐】第一個驅動之自動生成主設備號和設備文件

###一、聲明兩個變量web static struct class *firstdrv_class; static struct class_device *firstdrv_class_dev; ###二、修改函數first_drv_init(void)和first_drv_exit(void)svg int major; int first_drv_init(void) { major =

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