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並前往https://chungsijay.wordpress.com/2007/03/03/%E5%90%91-kernel-%E9%85%8D%E7%BD%AE-major-number/

向kernel 配置major number | CSJ's B!og

alloc_chrdev_region (&mychar, 0, num, name); printk(KERN_WARNING "CHAR TEST: major number is %d\n", MAJOR(mychar)); return 0; }.

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