kfifo_init (9)

kfifo_init(fifo, buffer, size);

fifo

the fifo to assign the buffer

buffer

the preallocated buffer to be used

size

the size of the internal buffer, this have to be a power of 2

This macro initialize a fifo using a preallocated buffer.

The numer of elements will be rounded-up to a power of 2. Return 0 if no error, otherwise an error code.