Jump to main content

##

# 3.3.4.18 USB_HOST_AUDIO_V1_FeatureUnitIDGet Function

## C

    uint8_t USB_HOST_AUDIO_V1_FeatureUnitIDGet(
        USB_HOST_AUDIO_V1_OBJ audioObj,
        USB_HOST_AUDIO_V1_CONTROL_ENTITY_OBJ entityObject
    );

## Summary

This function returns the ID of the D of the Feature Unit. This function is only applicable to Feature Unit. Prior to calling this function Entity Object should be obtained by calling the USB_HOST_AUDIO_V1_ControlEntityGetFirst, USB_HOST_AUDIO_V1_ControlEntityGetNext, or USB_HOST_AUDIO_V1_EntityObjectGet function.

## Parameters

Parameters | Description
audioObj | USB Host Audio v1.0 device object
entityObject | Audio control entity Object

## Returns

The ID of the feature unit.

## Remarks

None.