dma_pool_alloc(9)
NAME
dma_pool_alloc - get a block of consistent memory
SYNOPSIS
void * dma_pool_alloc(struct dma_pool * pool, gfp_t mem_flags,
dma_addr_t * handle);
ARGUMENTS
- pool
- dma pool that will produce the block
- mem_flags
- GFP_* bitmask
- handle
- pointer to dma address of block
DESCRIPTION
This returns the kernel virtual address of a currently unused block,
and reports its dma address through the handle. If such a memory block
can´t be allocated, NULL is returned.