rt-thread/bsp/stm32f4xx-HAL/drivers/drv_i2c.h

/*
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2017-06-05     tanek        first implementation.
 */
#ifndef __DRV_I2C__
#define __DRV_I2C__
int hw_i2c_init(void);
#endif