[alsa-devel] problems about converting sample rates when using ALSA-LIB

Hi all,

I have a problem when using ALSA lib . The problem is :

My ALSA driver only support a special sample rate , so ALSA lib must convert sample rates. But My driver don't get any audio data. When tracing the code of ALSA lib (alsa-lib-1.0.23), I found that : It mmap a address from my driver , but writing audio data to another address instead of that mmaped address.

I think this is why my driver don't get any audio data . But I don't know why it don't write audio data to that mmaped address.

Can you help me ? Any advices would help me a lot.

Thank you, longer.zhou