#ifndef __GPIO_H__
    #define __GPIO_H__

    #include <stdarg.h>

    #include "driver.h"

    int gpio_open(const struct driver *drv);
    int gpio_close(const struct driver *drv);

    int gpio_read(const struct driver *drv, char *buffer, unsigned int len);
    int gpio_write(const struct driver *drv, const char *buffer, unsigned int len);
    int gpio_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, va_list args);

    static const struct driver_fp gpio_fp = {
        .open = gpio_open,
        .close = gpio_close,
        .read = gpio_read,
        .write = gpio_write,
        .ioctl = gpio_ioctl
    };

    #endif