[alsa-devel] Can I mmap buffer allocated using SNDRV_DMA_TYPE_CONTINUOUS?

Pharaoh . pharaoh137 at gmail.com
Wed Jul 11 14:47:49 CEST 2007


On 7/11/07, Pharaoh . <pharaoh137 at gmail.com> wrote:
>
> Hi,
> I have allocated the DMA buffer using snd_pcm_lib_malloc_pages() and
> it was preallocated as:
>
> snd_pcm_lib_preallocate_pages_for_all(pcm,
>                                              SNDRV_DMA_TYPE_CONTINUOUS,
>                                              snd_dma_continuous_data
>                                              (GFP_KERNEL),
>                                              128 * 1024, 128 * 1024);
>
> Can I mmap such a dma buffer? I think yes...
>
> -pharaoh.
>


I dont think it can be mmapped.
-pharaoh.


More information about the Alsa-devel mailing list