snd_dma_alloc_pages_fallback (9) Linux Manual Page
snd_dma_alloc_pages_fallback – allocate the buffer area according to the given type with fallback
Synopsis
int snd_dma_alloc_pages_fallback(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. When no space is left, this function reduces the size and tries to allocate again. The size actually allocated is stored in res_size argument.
Return
Zero if the buffer with the given size is allocated successfully, otherwise a negative value on error.