SND_PCM_LIB_MMAP_IOM(9)                      PCM API                      SND_PCM_LIB_MMAP_IOM(9)



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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   SND_PCM_LIB_MMAP_IOM(9)