rio_dma_prep_slave_sg(9) centos man page | unix.com

RIO_DMA_PREP_SLAVE_S(9) 				     RapidIO driver interface					   RIO_DMA_PREP_SLAVE_S(9)

NAME
       rio_dma_prep_slave_sg - RapidIO specific wrapper for device_prep_slave_sg callback defined by DMAENGINE.

SYNOPSIS
       struct dma_async_tx_descriptor * rio_dma_prep_slave_sg(struct rio_dev * rdev, struct dma_chan * dchan, struct rio_dma_data * data,
							      enum dma_transfer_direction direction, unsigned long flags);

ARGUMENTS
       rdev
	   RIO device control structure

       dchan
	   DMA channel to configure

       data
	   RIO specific data descriptor

       direction
	   DMA data transfer direction (TO or FROM the device)

       flags
	   dmaengine defined flags

DESCRIPTION
       Initializes RapidIO capable DMA channel for the specified data transfer. Uses DMA channel private extension to pass information related to
       remote target RIO device. Returns pointer to DMA transaction descriptor or NULL if failed.

AUTHOR
       Matt Porter <mporter@kernel.crashing.org>, <mporter@mvista.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   RIO_DMA_PREP_SLAVE_S(9)