snd_pcm_lib_mmap_iomem (9) - Linux Manuals
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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