This function will set an attach event handler. The attach event handler will be called when a CDC device has been attached. The context will be returned in the event handler. This function should be called before the bus has been enabled.

USB_HOST_CDC_RESULT USB_HOST_CDC_AttachEventHandlerSet(
    USB_HOST_CDC_ATTACH_EVENT_HANDLER eventHandler, 
    uintptr_t context
);

None.

USB_HOST_CDC_RESULT_SUCCESS - if the attach event handler was registered successfully. 

USB_HOST_CDC_RESULT_FAILURE - if the number of registered event handlers has exceeded USB_HOST_CDC_ATTACH_LISTENERS_NUMBER.

Function should be called before USB_HOST_BusEnable() function is called.