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DMAmem2mem

int DMAmem2mem( dma_chan_t handle, dma_addr_t dest, dma_addr_t src, unsigned int len, unsigned int flags );

Description

This function performs an immediate DMA operation from memory to memory.

Parameters

handle

Handle for channel to use in transfer

dest

Memory destination address

src

Memory location source address

len

Length to send (cannot equal zero)

flags

Various flag options. See DMAioe2mem for a full list of flags and their descriptions.

Return Value

0: Success
-EINVAL: Invalid handle
-EBUSY: Resources are busy

Library

DMA.LIB

See Also

DMAcompleted, DMAstop