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Device registeration The kernel uses structures of type struct cdev to represent char devices internally. Include <linux/cdev.h> so that you can use t 阅读全文
posted @ 2018-11-07 10:55
glob
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/proc /proc filesystem is a special, software-created filesystem that is used by the kernel to export information to the world. If you want to work wi 阅读全文
posted @ 2018-11-07 10:46
glob
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Spinlock Spinlock usually used in code that cannot sleep, thus has higher performance than semaphores. Spinlock is implemented as a bit in an integer 阅读全文
posted @ 2018-11-07 10:18
glob
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