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# 2.4.6.1 usb_device_audio_v2_0.h

## File Name

usb_device_audio_v2.0.h

## Description

USB Device Audio Function Driver Interface

This file describes the USB Device Audio v2.0 Function Driver interface. This file should be included by the application if it needs to use the Audio v2.0 Function Driver API.

## Enumerations

Name | Description
USB_DEVICE_AUDIO_V2_EVENT | USB Device Audio v2.0 Function Driver events.
USB_DEVICE_AUDIO_V2_RESULT | USB Device Audio Function Driver USB Device Audio v2.0 result enumeration.

## Functions

Name | Description
USB_DEVICE_AUDIO_V2_EventHandlerSet | This function registers an event handler for the specified Audio function driver instance.
USB_DEVICE_AUDIO_V2_Read | This function requests a data read from the USB Device Audio v2.0 Function Driver Layer.
USB_DEVICE_AUDIO_V2_TransferCancel | This function cancels a scheduled Audio v2.0 Device data transfer.
USB_DEVICE_AUDIO_V2_Write | This function requests a data write to the USB Device Audio v2.0 Function Driver Layer.

## Macros

Name | Description
USB_DEVICE_AUDIO_V2_EVENT_RESPONSE_NONE | USB Device Audio v2.0 Function Driver event handler response type none.
USB_DEVICE_AUDIO_V2_FUNCTION_DRIVER | USB Device Audio v2.0 Function Driver function pointer.
USB_DEVICE_AUDIO_V2_TRANSFER_HANDLE_INVALID | USB Device Audio v2.0 Function Driver Invalid Transfer Handle Definition.

## Structures

Name | Description
USB_DEVICE_AUDIO_V2_EVENT_DATA_READ_COMPLETE | USB Device Audio Function Driver Audio v2.0 read and write complete event data.
USB_DEVICE_AUDIO_V2_EVENT_DATA_SET_ALTERNATE_INTERFACE | USB Device Audio v2.0 Function Driver alternate interface setting event data.
USB_DEVICE_AUDIO_V2_EVENT_DATA_WRITE_COMPLETE | USB Device Audio Function Driver Audio v2.0 read and write complete event data.
USB_DEVICE_AUDIO_V2_INIT | USB Device Audio v2.0 Function Driver initialization data structure.

## Types

Name | Description
USB_DEVICE_AUDIO_V2_EVENT_HANDLER | USB Device Audio v2.0 Event Handler Function Pointer Type.
USB_DEVICE_AUDIO_V2_EVENT_RESPONSE | USB Device Audio v2.0 Function Driver event callback response type.
USB_DEVICE_AUDIO_V2_INDEX | USB Device Audio v2.0 Function Driver index.
USB_DEVICE_AUDIO_V2_TRANSFER_HANDLE | USB Device Audio v2.0 Function Driver Transfer Handle Definition.