snd_pcm_lib_get_vmalloc_page (9) Linux Manual Page
snd_pcm_lib_get_vmalloc_page – map vmalloc buffer offset to page struct
Synopsis
struct page *snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream *substream, unsigned long offset);Arguments
substream
-
- the substream with a buffer allocated by snd_pcm_lib_alloc_vmalloc_buffer
offset
- offset in the buffer
Description
This function is to be used as the page callback in the PCM ops.
Return
The page struct, or NULL on failure.