Invert Potentiometer about control-surface HOT 6 CLOSED

CCPotentiometer pots[] = {
  {A0, MIDI_CC::General_Purpose_Controller_1},
  {A1, MIDI_CC::General_Purpose_Controller_2},
  {A2, MIDI_CC::General_Purpose_Controller_3},
  {A3, MIDI_CC::General_Purpose_Controller_4},
};

analog_t invertPot(analog_t val) {
  return 1023 - val;
}

void setup () {
  for (auto &pot : pots)
    pot.map(invertPot);
  Control_Surface.begin();
}

Bankable::CCPotentiometer fader [] = { //ici on déclare les faders avec comme vu plus haut le numéro de CC et le canal
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(8), {7, CHANNEL_1}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(9), {7, CHANNEL_2}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(10), {7, CHANNEL_3}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(11), {7, CHANNEL_4}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(12), {7, CHANNEL_5}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(13), {7, CHANNEL_6}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(14), {7, CHANNEL_7}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(15), {7, CHANNEL_8}}, 
};

CCPotentiometer potentiometer = {
    A0, {MIDI_CC::Channel_Volume, CHANNEL_1}
};
 
void setup() {
    potentiometer.invert();
    Control_Surface.begin();
}

Bankable::CCPotentiometer faders[] = {
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(8), {7, CHANNEL_1}},
  {{bank3, BankType::CHANGE_CHANNEL}, mux3.pin(9), {7, CHANNEL_2}},
  // ...
};

void setup() {
    for (auto &fader : faders)
        fader.invert();
    Control_Surface.begin();
}