Name
snd_pcm_lib_preallocate_pages —
pre-allocation for the given DMA type
Synopsis
int snd_pcm_lib_preallocate_pages ( | struct snd_pcm_substream * substream, |
| | int type, |
| | struct device * data, |
| | size_t size, |
| | size_t max); |
Arguments
substream
the 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.