KFIFO_DMA_OUT_FINISH(9) FIFO Buffer KFIFO_DMA_OUT_FINISH(9)
NAME
kfifo_dma_out_finish - finish a DMA OUT operation
SYNOPSIS
kfifo_dma_out_finish(fifo, len);
ARGUMENTS
fifo
address of the fifo to be used
len
number of bytes transferd
DESCRIPTION
This macro finish a DMA OUT operation. The out counter will be updated by the len parameter. No error checking will be done.
Note that with only one concurrent reader and one concurrent writer, you don't need extra locking to use these macros.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 KFIFO_DMA_OUT_FINISH(9)
