snd_pcm_lib_mmap_iomem (9) - Linux Man Pages

snd_pcm_lib_mmap_iomem: Default PCM data mmap function for I/O mem

NAME

snd_pcm_lib_mmap_iomem - Default PCM data mmap function for I/O mem

SYNOPSIS

int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream substream, struct vm_area_struct area);

ARGUMENTS

substream

PCM substream

area

VMA

DESCRIPTION

When your hardware uses the iomapped pages as the hardware buffer and wants to mmap it, pass this function as mmap pcm_ops. Note that this is supposed to work only on limited architectures.

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