On 02-Apr-2003 Takashi Iwai wrote:
>> > anyway, runtime->dma_area and runtime->dma_bytes MUST be filled
>> > manually IFF you don't use snd_pcm_lib_malloc_pages().
>> > (dma_area won't be needed if the mmap is not supported and copy
>> > callback is defined, though.)
>>
>> I use snd_pcm_lib_malloc_pages(), dma is supported and no copy
>> callback is defined.
>
> did you call snd_pcm_lib_preallocate_xxx functions after snd_pcm_new()
> ?

Yes, otherwise snd_pcm_lib_malloc_pages() fails and hw_params callback
exits with an error.


Bye.



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