devdma.h

来自「linux 内核源代码」· C头文件 代码 · 共 4 行

void devdma_hw_free(struct device *dev, struct snd_pcm_substream *substream);
int devdma_hw_alloc(struct device *dev, struct snd_pcm_substream *substream, size_t size);
int devdma_mmap(struct device *dev, struct snd_pcm_substream *substream, struct vm_area_struct *vma);