Linux Kernel  3.7.1
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i2c.h
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1 
2 #include <linux/init.h>
3 
4 /* High level I2C actions */
5 int __init i2c_init(void);
6 int i2c_write(unsigned char theSlave, void *data, size_t nbytes);
7 int i2c_read(unsigned char theSlave, void *data, size_t nbytes);
8 int i2c_writereg(unsigned char theSlave, unsigned char theReg, unsigned char theValue);
9 unsigned char i2c_readreg(unsigned char theSlave, unsigned char theReg);
10 
11 /* Low level I2C */
12 void i2c_start(void);
13 void i2c_stop(void);
14 void i2c_outbyte(unsigned char x);
15 unsigned char i2c_inbyte(void);
16 int i2c_getack(void);
17 void i2c_sendack(void);