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added skeleton for planned i2c API

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This commit is contained in:
Markus Fröschle
2015-01-12 14:00:20 +00:00
parent fe7075dfa5
commit fe0a0ceb1b
4 changed files with 55 additions and 1 deletions
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11
include/i2c.h
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@@ -28,6 +28,8 @@
#ifndef _I2C_H
#define _I2C_H
#include "bas_types.h"
/* --- General options ------------------------------------------------ */
struct i2c_msg;
@@ -82,4 +84,13 @@ struct i2c_msg
unsigned char *buf; /* pointer to msg data */
};
extern void i2c_init(void);
extern void i2c_set_frequency(int hz);
extern int i2c_read(int address, char *data, int lengt, bool repeated);
extern int i2c_read_byte(int ack);
extern int i2c_write(int address, const char *data, int length, bool repeated);
extern int i2c_write_byte(int data);
extern void i2c_start(void);
extern void i2c_stop(void);
#endif /* _I2C_H */