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##

# 2.3.4.9 USB_DEVICE_AUDIO_RESULT Enumeration

## C

    typedef enum {
      USB_DEVICE_AUDIO_RESULT_OK,
      USB_DEVICE_AUDIO_RESULT_ERROR_TRANSFER_QUEUE_FULL,
      USB_DEVICE_AUDIO_RESULT_ERROR_INSTANCE_INVALID,
      USB_DEVICE_AUDIO_RESULT_ERROR_INSTANCE_NOT_CONFIGURED,
      USB_DEVICE_AUDIO_RESULT_ERROR_PARAMETER_INVALID,
      USB_DEVICE_AUDIO_RESULT_ERROR_INVALID_INTERFACE_ID,
      USB_DEVICE_AUDIO_RESULT_ERROR_INVALID_BUFFER,
      USB_DEVICE_AUDIO_RESULT_ERROR_ENDPOINT_HALTED,
      USB_DEVICE_AUDIO_RESULT_ERROR_TERMINATED_BY_HOST,
      USB_DEVICE_AUDIO_RESULT_ERROR
    } USB_DEVICE_AUDIO_RESULT;

## Summary

USB Device Audio Function Driver USB Device Audio Result enumeration.

This enumeration lists the possible USB Device Audio Function Driver operation results.

## Members

Members | Description
USB_DEVICE_AUDIO_RESULT_OK | The operation was successful
USB_DEVICE_AUDIO_RESULT_ERROR_TRANSFER_QUEUE_FULL | The transfer queue is full and no new transfers can be scheduled
USB_DEVICE_AUDIO_RESULT_ERROR_INSTANCE_INVALID | The specified instance is not provisioned in the system
USB_DEVICE_AUDIO_RESULT_ERROR_INSTANCE_NOT_CONFIGURED | The specified instance is not configured yet
USB_DEVICE_AUDIO_RESULT_ERROR_PARAMETER_INVALID | The event handler provided is NULL
USB_DEVICE_AUDIO_RESULT_ERROR_INVALID_INTERFACE_ID | Interface number passed to the read or write function is invalid
USB_DEVICE_AUDIO_RESULT_ERROR_INVALID_BUFFER | A NULL buffer was specified in the read or write function
USB_DEVICE_AUDIO_RESULT_ERROR_ENDPOINT_HALTED | Transfer terminated because host halted the endpoint
USB_DEVICE_AUDIO_RESULT_ERROR_TERMINATED_BY_HOST | Transfer terminated by host because of a stall clear
USB_DEVICE_AUDIO_RESULT_ERROR | General Error

## Remarks

None.