1 files changed, 13 insertions, 12 deletions

diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h
index 3c7731e8d..0806d76aa 100755
--- a/drivers/avr/i2c_master.h
+++ b/drivers/avr/i2c_master.h
@@ -8,20 +8,21 @@
 #define I2C_READ 0x01
 #define I2C_WRITE 0x00
 
-typedef i2c_status_t int16_t
-#define I2C_STATUS_TIMEOUT (-1)
+typedef int16_t i2c_status_t;
 
-#define I2C_NO_TIMEOUT 0
+#define I2C_STATUS_SUCCESS (0)
+#define I2C_STATUS_ERROR   (-1)
+#define I2C_STATUS_TIMEOUT (-2)
 
 void i2c_init(void);
-i2c_status_t i2c_start(uint8_t address, uint8_t timeout);
-i2c_status_t i2c_write(uint8_t data, uint8_t timeout);
-i2c_status_t i2c_read_ack(uint8_t timeout);
-i2c_status_t i2c_read_nack(uint8_t timeout);
-uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
-uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length);
-uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
-uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
-i2c_status_t i2c_stop(uint8_t timeout);
+i2c_status_t i2c_start(uint8_t address, uint16_t timeout);
+i2c_status_t i2c_write(uint8_t data, uint16_t timeout);
+int16_t i2c_read_ack(uint16_t timeout);
+int16_t i2c_read_nack(uint16_t timeout);
+i2c_status_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
+i2c_status_t i2c_stop(uint16_t timeout);
 
 #endif // I2C_MASTER_H