3.3.4.2 USB_HOST_AUDIO_V1_ControlEntityGetFirst Function

C

USB_HOST_AUDIO_V1_RESULT USB_HOST_AUDIO_V1_ControlEntityGetFirst(
    USB_HOST_AUDIO_V1_OBJ audioObj, 
    USB_HOST_AUDIO_V1_CONTROL_ENTITY_OBJ * pEntityObject
);

Summary

This function retrieves the handle to the first audio control entity.

Parameters

Returns

• USB_HOST_AUDIO_V1_RESULT_SUCCESS - The operation was successful
• USB_HOST_AUDIO_V1_RESULT_END_OF_CONTROL_ENTITY - No more audio control entities are available
• USB_HOST_AUDIO_V1_RESULT_OBJ_INVALID - The specified audio stream does not exist
• USB_HOST_AUDIO_V1_RESULT_FAILURE - An unknown failure occurred

Remarks

None.