kfifo_peek_len(9)

1KFIFO_PEEK_LEN(9)                 FIFO Buffer                KFIFO_PEEK_LEN(9)
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NAME

6       kfifo_peek_len - gets the size of the next fifo record
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9       kfifo_peek_len(fifo);
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12       fifo
13           address of the fifo to be used
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16       This function returns the size of the next fifo record in number of
17       bytes.
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20Kernel Hackers Manual 3.10         June 2019                 KFIFO_PEEK_LEN(9)