Name
snd_pcm_lib_malloc_pages —
allocate the DMA buffer
Synopsis
int snd_pcm_lib_malloc_pages ( | struct snd_pcm_substream * substream, |
| | size_t size); |
Arguments
substream
the substream to allocate the DMA buffer to
size
the requested buffer size in bytes
Description
Allocates the DMA buffer on the BUS type given earlier to
snd_pcm_lib_preallocate_xxx_pages.
Returns 1 if the buffer is changed, 0 if not changed, or a negative
code on failure.