variable not working

Hi, I'm trying to write a class and one thing isn't working. I'm trying to save a few variables to use later, but it isn't working. If i don't try to use the variable 'CS' but a number directly it works. Can someone point out what I am doing wrong. I tried to include only the functions that are used. The class is defined like this:
ADS.h

Code:

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class ADS
{
public:
    void PinMap(int cs, int drdy, int reset, int start); // saves all the variables that are declared in ADS.c
    void Initialize(); // start spi and prepare pins   
    void pindown(); // used to test
private:   
    // for pic portability
    void pinc(int pin, int lvl);
    void pint(int pin, int type);// pinmode - 0 out, 1 in
};

---

ADS.c looks like this:

Code:

---

int CS, DRDY, RESET, START;
void ADS::PinMap(int cs, int drdy, int reset, int start)
{ CS, DRDY, RESET, START = cs, drdy, reset, start; }
void ADS::Initialize(){
    pint(CS, 0);
    pint(DRDY, 1); // PIN TYPE INPUT
    pinc(CS, 1);
    pint(START, 0); // PIN TYPE OUTPUT
    pinc(START, 1); // PIN LOGIC STATE 1
    pint(RESET, 0); // PIN TYPE OUTPUT
    pinc(RESET, 1); // PIN LOGIC STATE 1
}
void ADS::pindown()
{
    //pint(2,0); // IF I use a number istead of CS it works throughout the code
    pinc(CS, 0);
    wait(1000);
    pinc(CS,1);
    wait(200);
}
void ADS::pinc(int pin, int lvl)
{
    if (lvl == 1)
    {
        digitalWrite(pin, HIGH);
    }
    if (lvl == 0)
    {
        digitalWrite(pin, LOW);
    }
}

void ADS::pint(int pin, int type)
{
    if (type == 1)
    {
        pinMode(pin, INPUT);
    }
    if (type == 0)
    {
        pinMode(pin, OUTPUT);
    }
}

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CS, DRDY, RESET, START = cs, drdy, reset, start
This isn't how you assign 4 variables with 4 values.