gpio

#include <stdlib.h>
#include <stdio.h>

#include "gpio_lib.h"
#define PB09    SUNXI_GPB(9)

int main()
{
    int value;

    if(SETUP_OK!=sunxi_gpio_init()){
        printf("Failed to initialize GPIO\n");
        return -1;
    }
    if(SETUP_OK!=sunxi_gpio_set_cfgpin(PB09,INPUT)){
        printf("Failed to config GPIO pin\n");
        return -1;
    }
    while(1)
    {

        value = sunxi_gpio_input(PB09);
        printf("value: %i\n", value);
        usleep(50000);
    }
    sunxi_gpio_cleanup();
    return 0;
}