+ /*
+ * I2C error flags
+ */
+#define I2C_OK 0 ///< I2C no errors flag
+#define I2C_ERR BV(3) ///< I2C generic error
+#define I2C_ARB_LOST BV(2) ///< I2C arbitration lost error
+#define I2C_START_TIMEOUT BV(0) ///< I2C timeout error on start
+#define I2C_NO_ACK BV(1) ///< I2C no ack for sla start