other versions
- jessie 3.16.56-1+deb8u1
| SND_PCM_LIB_PREALLOC(9) | Sound Devices | SND_PCM_LIB_PREALLOC(9) |
NAME¶
snd_pcm_lib_preallocate_pages - pre-allocation for the given DMA typeSYNOPSIS¶
int
snd_pcm_lib_preallocate_pages(struct snd_pcm_substream * substream,
int type,
struct device * data,
size_t size, size_t max);
ARGUMENTS¶
substreamthe pcm substream instance
type
DMA type (SNDRV_DMA_TYPE_*)
data
DMA type dependent data
size
the requested pre-allocation size in bytes
max
the max. allowed pre-allocation size
DESCRIPTION¶
Do pre-allocation for the given DMA buffer type.RETURN¶
Zero if successful, or a negative error code on failure.COPYRIGHT¶
| May 2018 | Kernel Hackers Manual 3.16 |