extern unsigned int ds1302rtcRead (const int reg) ; extern void ds1302rtcWrite (const int reg, const unsigned int data) ; extern unsigned int ds1302ramRead (const int addr) ; extern void ds1302ramWrite (const int addr, const unsigned int data) ; extern void ds1302clockRead (int clockData [8]) ; extern void ds1302clockWrite (const int clockData [8]) ; extern void ds1302trickleCharge (const int diodes, const int resistors) ; extern void ds1302setup (const int clockPin, const int dataPin, const int csPin) ; extern void gertboardAnalogWrite (const int chan, const int value) ; extern int gertboardAnalogRead (const int chan) ; extern int gertboardSPISetup (void) ; extern int gertboardAnalogSetup (const int pinBase) ; extern void lcd128x64setOrigin (int x, int y) ; extern void lcd128x64setOrientation (int orientation) ; extern void lcd128x64orientCoordinates (int *x, int *y) ; extern void lcd128x64getScreenSize (int *x, int *y) ; extern void lcd128x64point (int x, int y, int colour) ; extern void lcd128x64line (int x0, int y0, int x1, int y1, int colour) ; extern void lcd128x64lineTo (int x, int y, int colour) ; extern void lcd128x64rectangle (int x1, int y1, int x2, int y2, int colour, int filled) ; extern void lcd128x64circle (int x, int y, int r, int colour, int filled) ; extern void lcd128x64ellipse (int cx, int cy, int xRadius, int yRadius, int colour, int filled) ; extern void lcd128x64putchar (int x, int y, int c, int bgCol, int fgCol) ; extern void lcd128x64puts (int x, int y, const char *str, int bgCol, int fgCol) ; extern void lcd128x64update (void) ; extern void lcd128x64clear (int colour) ; extern int lcd128x64setup (void) ; extern void lcdHome (const int fd) ; extern void lcdClear (const int fd) ; extern void lcdDisplay (const int fd, int state) ; extern void lcdCursor (const int fd, int state) ; extern void lcdCursorBlink (const int fd, int state) ; extern void lcdSendCommand (const int fd, unsigned char command) ; extern void lcdPosition (const int fd, int x, int y) ; extern void lcdCharDef (const int fd, int index, unsigned char data [8]) ; extern void lcdPutchar (const int fd, unsigned char data) ; extern void lcdPuts (const int fd, const char *string) ; extern void lcdPrintf (const int fd, const char *message, ...) ; extern int lcdInit (const int rows, const int cols, const int bits, extern int piFaceSetup (const int pinBase) ; extern int setupNesJoystick (int dPin, int cPin, int lPin) ; extern unsigned int readNesJoystick (int joystick) ; extern int doExtension (char *progName, char *extensionData) ; extern int mcp23008Setup (const int pinBase, const int i2cAddress) ; extern int mcp23016Setup (const int pinBase, const int i2cAddress) ; extern int mcp23017Setup (const int pinBase, const int i2cAddress) ; extern int mcp23s08Setup (const int pinBase, const int spiPort, const int devId) ; extern int mcp23s17Setup (int pinBase, int spiPort, int devId) ; extern int mcp3002Setup (int pinBase, int spiChannel) ; extern int mcp3422Setup (int pinBase, int i2cAddress, int channels, int sampleRate, int gain) ; extern int mcp4802Setup (int pinBase, int spiChannel) ; extern int pcf8574Setup (const int pinBase, const int i2cAddress) ; extern int pcf8591Setup (const int pinBase, const int i2cAddress) ; extern int softPwmCreate (int pin, int value, int range) ; extern void softPwmWrite (int pin, int value) ; extern void softServoWrite (int pin, int value) ; extern int softServoSetup (int p0, int p1, int p2, int p3, int p4, int p5, int p6, int p7) ; extern int softToneCreate (int pin) ; extern void softToneWrite (int pin, int freq) ; extern int sr595Setup (const int pinBase, const int numPins, extern int wiringPiFailure (int fatal, const char *message, ...) ; extern struct wiringPiNodeStruct *wiringPiNewNode (int pinBase, int numPins) ; extern int wiringPiSetup (void) ; extern int wiringPiSetupSys (void) ; extern int wiringPiSetupGpio (void) ; extern int wiringPiSetupPhys (void) ; extern void pinMode (int pin, int mode) ; extern void pullUpDnControl (int pin, int pud) ; extern int digitalRead (int pin) ; extern void digitalWrite (int pin, int value) ; extern void pwmWrite (int pin, int value) ; extern int analogRead (int pin) ; extern void analogWrite (int pin, int value) ; extern int wiringPiSetupPiFace (void) ; extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only extern int piBoardRev (void) ; extern int wpiPinToGpio (int wpiPin) ; extern int physPinToGpio (int physPin) ; extern void setPadDrive (int group, int value) ; extern int getAlt (int pin) ; extern void digitalWriteByte (int value) ; extern void pwmSetMode (int mode) ; extern void pwmSetRange (unsigned int range) ; extern void pwmSetClock (int divisor) ; extern void gpioClockSet (int pin, int freq) ; extern int waitForInterrupt (int pin, int mS) ; extern int wiringPiISR (int pin, int mode, void (*function)(void)) ; extern int piThreadCreate (void *(*fn)(void *)) ; extern void piLock (int key) ; extern void piUnlock (int key) ; extern int piHiPri (const int pri) ; extern void delay (unsigned int howLong) ; extern void delayMicroseconds (unsigned int howLong) ; extern unsigned int millis (void) ; extern unsigned int micros (void) ; extern int wiringPiI2CRead (int fd) ; extern int wiringPiI2CReadReg8 (int fd, int reg) ; extern int wiringPiI2CReadReg16 (int fd, int reg) ; extern int wiringPiI2CWrite (int fd, int data) ; extern int wiringPiI2CWriteReg8 (int fd, int reg, int data) ; extern int wiringPiI2CWriteReg16 (int fd, int reg, int data) ; extern int wiringPiI2CSetupInterface (const char *device, int devId) ; extern int wiringPiI2CSetup (const int devId) ; extern int serialOpen (const char *device, const int baud) ; extern void serialClose (const int fd) ; extern void serialFlush (const int fd) ; extern void serialPutchar (const int fd, const unsigned char c) ; extern void serialPuts (const int fd, const char *s) ; extern void serialPrintf (const int fd, const char *message, ...) ; extern int serialDataAvail (const int fd) ; extern int serialGetchar (const int fd) ; extern uint8_t shiftIn (uint8_t dPin, uint8_t cPin, uint8_t order) ; extern void shiftOut (uint8_t dPin, uint8_t cPin, uint8_t order, uint8_t val) ;