1__KFIFO_GET(9) FIFO Buffer __KFIFO_GET(9)
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6 __kfifo_get - gets some data from the FIFO, no locking version
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9 unsigned int __kfifo_get(struct kfifo * fifo, unsigned char * buffer,
10 unsigned int len);
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13 fifo
14 the fifo to be used.
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16 buffer
17 where the data must be copied.
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19 len
20 the size of the destination buffer.
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23 This function copies at most len bytes from the FIFO into the buffer
24 and returns the number of copied bytes.
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26 Note that with only one concurrent reader and one concurrent writer,
27 you donĀ“t need extra locking to use these functions.
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30Kernel Hackers Manual 2.6. June 2019 __KFIFO_GET(9)