Using a joystick and usbhost shield to control some relays

Hello, for my project im trying to read the data from my USB joystick (buttonpresses) to power some relays. this is the first time i try something like this, some how i cant seem to use the Hexadecimal data from my structure in my IF statement, any tips?

(if i press a button on the joystick, i can see in the serial monitor on point a, 20 being printed. i want to use this hexadecimal number in an IF statement to power a pin)

#include <usbhid.h>
#include <hiduniversal.h>
#include <usbhub.h>

// Satisfy the IDE, which needs to see the include statment in the ino too.
#ifdef dobogusinclude
#include <spi4teensy3.h>
#include <SPI.h>


struct GamePadEventData
  uint8_t	  f;                                                      //
  uint8_t		c;                                                      
  uint8_t 	a;
  uint8_t	  b;
  uint8_t		d;
  uint8_t		e;




class JoystickEvents
	virtual void OnGamePadChanged(const GamePadEventData *evt);


#define RPT_GAMEPAD_LEN	sizeof(GamePadEventData)

class JoystickReportParser : public HIDReportParser
	JoystickEvents		*joyEvents;

  uint8_t oldPad[RPT_GAMEPAD_LEN];

	JoystickReportParser(JoystickEvents *evt);

	virtual void Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf);

JoystickReportParser::JoystickReportParser(JoystickEvents *evt) :

void JoystickReportParser::Parse(USBHID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
	// Checking if there are changes in report since the method was last called
  bool match = (sizeof(oldPad) == len) && (memcmp(oldPad, buf, len) == 0);

   //Calling Game Pad event handler
	if (!match && joyEvents) {
		joyEvents->OnGamePadChanged((const GamePadEventData*)buf);
   memcpy(oldPad, buf, len);


void JoystickEvents::OnGamePadChanged(const GamePadEventData *evt)
	Serial.print("A: ");
	PrintHex<uint8_t>(evt->a, 0x80);
	Serial.print(" B: ");
	PrintHex<uint8_t>(evt->b, 0x80);
	Serial.print(" C: ");
	PrintHex<uint8_t>(evt->c, 0x80);
	Serial.print(" D: ");
	PrintHex<uint8_t>(evt->d, 0x80);
  Serial.print(" E: ");
	PrintHex<uint8_t>(evt->e, 0x80);
  Serial.print(" F: ");
	PrintHex<uint8_t>(evt->f, 0x80);


USB                                             Usb;
USBHub                                          Hub(&Usb);
HIDUniversal                                    Hid(&Usb);
JoystickEvents                                  JoyEvents;
JoystickReportParser                            Joy(&JoyEvents);


void setup()


  Serial.begin( 115200 );
    #if !defined(__MIPSEL__)
    while (!Serial);     // Wait for serial port to connect
    if (Usb.Init() == -1)
      Serial.println("OSC did not start.");
    delay( 200 );
    if (!Hid.SetReportParser(0, &Joy))
      ErrorMessage<uint8_t>(PSTR("SetReportParser"), 1  );

  pinMode(43, OUTPUT);                                          
  pinMode(45, OUTPUT);                                                  
  pinMode(49, OUTPUT);                                         
  pinMode(47, OUTPUT);                                          



void loop()


    // Here is where im trying to use the data from the struct (in the top):
            // uint8_t   f;                                                     
            // uint8_t   c;                                                      
            // uint8_t   a;
            // uint8_t   b;
            // uint8_t   d;
            // uint8_t   e;
    // to use in a if function to power some pins, 

    // somehow i cant just do: 
    // if (GamePadEventData.a) == 20)
    // {
    //    digitalWrite(43, HIGH);
    //  }
    // any ideas? or tips?


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