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SND_DMA_ALLOC_PAGES(9) Management of Cards and Device SND_DMA_ALLOC_PAGES(9)

NAME

snd_dma_alloc_pages - allocate the buffer area according to the given type

SYNOPSIS

int snd_dma_alloc_pages(int type, struct device * device, size_t size, struct snd_dma_buffer * dmab);

ARGUMENTS

type

the DMA buffer type

device

the device pointer

size

the buffer size to allocate

dmab

buffer allocation record to store the allocated data

DESCRIPTION

Calls the memory-allocator function for the corresponding buffer type.

RETURN

Zero if the buffer with the given size is allocated successfully, otherwise a negative value on error.

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June 2024 Kernel Hackers Manual 3.10