This is the USB Host Layer Event Handler Callback Set function. An application can receive USB Host Layer events by using this function to register and event handler callback function. The application can additionally specify a specific context which will returned with the event handler callback function. The event handler must be set (this function must be called) before any of the USB buses are enabled.

USB_HOST_RESULT USB_HOST_EventHandlerSet(
    USB_HOST_EVENT_HANDLER eventHandler, 
    uintptr_t context
);

The host layer should have been initialized.

USB_HOST_RESULT_SUCCESS - The function was successful. USB_HOST_RESULT_FAILURE - An unknown failure occurred.

None.