1SND_PCM_LIB_PREALLOC(9)             PCM API            SND_PCM_LIB_PREALLOC(9)
2
3
4

NAME

6       snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous
7       memory type (all substreams)
8

SYNOPSIS

10       int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm,
11                                                 int type, void * data,
12                                                 size_t size, size_t max);
13

ARGUMENTS

15       pcm
16           the pcm instance
17
18       type
19           DMA type (SNDRV_DMA_TYPE_*)
20
21       data
22           DMA type dependent data
23
24       size
25           the requested pre-allocation size in bytes
26
27       max
28           the max. allowed pre-allocation size
29

DESCRIPTION

31       Do pre-allocation to all substreams of the given pcm for the specified
32       DMA type.
33

RETURN

35       Zero if successful, or a negative error code on failure.
36

38Kernel Hackers Manual 3.10         June 2019           SND_PCM_LIB_PREALLOC(9)
Impressum