GetMix
return fMixer.GetMix(Info);
status_t GetMix(multi_mix_value_info *Info);
status_t GetMix(multi_mix_value_info* Info);
return fAudioControl.GetMix(Info);
status_t GetMix(multi_mix_value_info* mixValueInfo);
status_t status = fDevice->GetMix(&info);