#include <linux/init.h>/* High level I2C actions */int __init i2c_init(void);int i2c_writereg(unsigned char theSlave, unsigned char theReg, unsigned char theValue);unsigned char i2c_readreg(unsigned char theSlave, unsigned char theReg);/* Low level I2C */void i2c_start(void);void i2c_stop(void);void i2c_outbyte(unsigned char x);unsigned char i2c_inbyte(void);int i2c_getack(void);void i2c_sendack(void);