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- stretch 4.9.168-1
| 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 memSYNOPSIS¶
int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream * substream, struct vm_area_struct * area);
ARGUMENTS¶
substreamPCM 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¶
| April 2019 | Kernel Hackers Manual 4.9. |