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

/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2015-01-05     Bernard      the first version
 */
#ifndef __DRV_GPIO_H__
#define __DRV_GPIO_H__
extern int rt_hw_pin_init(void);
#endif