linux/arch/cris/arch-v32/drivers/i2c.h

#include <linux/init.h>

/* High level I2C actions */
int i2c_write(unsigned char theSlave, void *data, size_t nbytes);
int i2c_read(unsigned char theSlave, void *data, size_t nbytes);
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);