Audio v1.0 Stream Events 

This enumeration identifies the possible events that the Audio v1.0 stream can generate. The application should register an event handler using the USB_HOST_AUDIO_V1_0_StreamEventHandlerSet function to receive Audio v1.0 stream events. 

An event may have data associated with it. Events that are generated due to a transfer of data between the Host and Device are accompanied by data structures that provide the status of the transfer termination. For example, the USB_HOST_AUDIO_V1_0_STREAM_EVENT_READ_COMPLETE event is accompanied by a pointer to a USB_HOST_AUDIO_V1_0_STREAM_EVENT_READ_COMPLETE_DATA data structure. The transferStatus member of this data structure indicates the success or failure of the transfer. A transfer may fail due to the Device not responding on the bus if the Device stalls any stages of the transfer or due to NAK time-outs. The event description provides details on the nature of the event and the data that is associated with the event.

typedef enum {
  USB_HOST_AUDIO_V1_0_STREAM_EVENT_READ_COMPLETE,
  USB_HOST_AUDIO_V1_0_STREAM_EVENT_WRITE_COMPLETE,
  USB_HOST_AUDIO_V1_0_STREAM_EVENT_ENABLE_COMPLETE,
  USB_HOST_AUDIO_V1_0_STREAM_EVENT_DISABLE_COMPLETE,
  USB_HOST_AUDIO_V1_0_STREAM_EVENT_SAMPLING_RATE_SET_COMPLETE
} USB_HOST_AUDIO_V1_0_STREAM_EVENT;