table of contents
| SND_PCM_LIB_MALLOC_P(9) | PCM API | SND_PCM_LIB_MALLOC_P(9) |
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.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |