2.4.5 Library Interface
Library Interface
This section describes the Application Programming Interface (API) functions of the USB Device Audio Library.
Refer to each section for a detailed description.
a) 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. |
b) Data Types and Constants
| Name | Description |
| USB_DEVICE_AUDIO_V2_EVENT | USB Device Audio v2.0 Function Driver events. |
| 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_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_INIT | USB Device Audio v2.0 Function Driver initialization data structure. |
| USB_DEVICE_AUDIO_V2_RESULT | USB Device Audio Function Driver USB Device Audio v2.0 result enumeration. |
| USB_DEVICE_AUDIO_V2_TRANSFER_HANDLE | USB Device Audio v2.0 Function Driver Transfer Handle Definition. |
| 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. |