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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¶
January 2017 | Kernel Hackers Manual 4.8. |