ADS7828 Library for Arduino

unsigned int readADS7828(unsigned char ads_address, unsigned char channel, bool mode){
    ads_address = ads_address >> 1 ;
    unsigned char channels[8] = {0x00, 0x40, 0x10, 0x50, 0x20, 0x60, 0x30, 0x70};
    unsigned char command = 0;
    unsigned int reading = 0;
    command = channels[channel];
    if (mode){
        command = command ^ 0x80;
    }
    Wire.beginTransmission(ads_address);
    Wire.write(command);
    Wire.endTransmission();
    delay(10);
    Wire.requestFrom(ads_address, 2);
    if (2 <= Wire.available())  {
        reading = Wire.read();
        reading = reading << 8;
        reading |= Wire.read();
    }
    return reading;
}