get_chunk_size
const unsigned int chunk_size = get_chunk_size(sensor);
unsigned int (*get_chunk_size)(struct snd_dma_buffer *dmab,
if (ops && ops->get_chunk_size)
return ops->get_chunk_size(dmab, ofs, size);
.get_chunk_size = snd_dma_vmalloc_get_chunk_size,
.get_chunk_size = snd_dma_noncontig_get_chunk_size,
.get_chunk_size = snd_dma_vmalloc_get_chunk_size,