38 # include <WProgram.h>
73 void readRegister(uint8_t addr);
74 void writeRegister(uint8_t addr);
80 MCP23S17(DSPI *spi, uint8_t cs, uint8_t addr);
82 MCP23S17(SPIClass *spi, uint8_t cs, uint8_t addr);
85 void pinMode(uint8_t pin, uint8_t mode);
91 void writePort(uint8_t port, uint8_t val);