audio_return_e _pcm_set_hw_params(snd_pcm_t *pcm, audio_pcm_sample_spec_s *sample_spec, uint8_t *use_mmap, snd_pcm_uframes_t *period_size, snd_pcm_uframes_t *buffer_size);
/* Control */
-audio_return_e _control_init(audio_hal_s *ah);
-audio_return_e _control_deinit(audio_hal_s *ah);
+audio_return_e _mixer_control_init(audio_hal_s *ah);
+audio_return_e _mixer_control_deinit(audio_hal_s *ah);
audio_return_e _mixer_control_set_param(audio_hal_s *ah, const char* ctl_name, snd_ctl_elem_value_t* value, int size);
audio_return_e _mixer_control_set_value(audio_hal_s *ah, const char* card, const char *ctl_name, int val);
audio_return_e _mixer_control_set_value_string(audio_hal_s *ah, const char* ctl_name, const char* value);