kfifo_dma_out_finish - finish a DMA OUT operation
2. SYNOPSIS ▲
kfifo_dma_out_finish( fifo , len );
3. ARGUMENTS ▲
address of the fifo to be used
number of bytes transferd
4. 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 donAqt need extra locking to use these macros.
5. COPYRIGHT ▲