In the following code example, the event ID is set in byte 3 of the action arguments and may be set to a value between 0 and SL_RX_FILTER_MAX_USER_EVENT_ID (=63).

The code example for adding a filter with an event (the event input is highlighted in yellow, and the event output parsing is highlighted in gray):

void AddSomeFilters()
{
    // declarations
    SlWlanRxFilterID_t                     FilterId;
    SlWlanRxFilterRuleType_t               RuleType;
    SlWlanRxFilterFlags_u                  FilterFlags;
    SlWlanRxFilterRuleHeader_t             Rule;
    SlWlanRxFilterTrigger_t                Trigger;
    SlWlanRxFilterAction_t                 Action;
    ...
    // here comes the code for adding a header rule filter
    ...
   // now for action args setting. 
   // request an event as one of the actions to perform
   Action.Type = SL_WLAN_RX_FILTER_ACTION_EVENT_TO_HOST;
   // The output of the event is to set bit number (in this case it is bit 2).
   Action.UserId = 2;
  ...
  // finally the code to add the event.
  RetVal = sl_WlanRxFilterAdd( 
                    RuleType,
                    FilterFlags,
                    ( const SlWlanRxFilterRule_u* const )&Rule,
                    ( const SlWlanRxFilterTrigger_t* const)&Trigger,
                    ( const SlWlanRxFilterAction_t* const )&ction,
                    &FilterId);
 
// rx filters events handling is a specific case in the WLAN events handlingvoid SLWlanEventHandler(SlWlanEvent_t *pWlanEventHandler)
{
int i = 0;
    switch(pWlanEventHandler->Id)
    {
        case SL_WLAN_EVENT_CONNECT:
break;
case SL_WLAN_EVENT_STA_ADDED:
break;
        case SL_WLAN_EVENT_DISCONNECT:
break;
        case SL_WLAN_EVENT_RXFILTER:
{
SlWlanEventRxFilterInfo_t *pEventData = 
                              (SlWlanEventRxFilterInfo_t *)&pWlanEventHandler->Data;
/*
                            printf("\n\nRx filter event %d, event type = %d 
                                    \n",g_RxFilterEventsCounter,pEventData->Type);
for(i = 0;i < 64;i++)
{
if(SL_WLAN_ISBITSET8(pEventData->UserActionIdBitmap,i))
{
printf("User action %d filter event 
                                                  arrived\n",i);
}
}
                           */
}
break;
    }
}