SND_PCM_LIB_PREALLOC - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2.6.
Note : PCM API
NAMEsnd_pcm_lib_preallocate_pages_for_all − pre−allocation for continous memory type (all substreams)
SYNOPSISint snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm, int type, void * data, size_t size, size_t max);
ARGUMENTSpcm the pcm instance type DMA type (SNDRV_DMA_TYPE_*) data DMA type dependant data size the requested pre−allocation size in bytes max the max. allowed pre−allocation size
DESCRIPTIONDo pre−allocation to all substreams of the given pcm for the specified DMA type. Returns zero if successful, or a negative error code on failure.
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Online Linux Manual Page : Version : Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page : Library : lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
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