#include <stdio.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <string.h>#include <termios.h>#include <errno.h>#include "at91_gpio.h"#include "at91_ioctl.h"#define SYS_LED AT91_PIN_PC10int fd;at91_gpio_arg arg;void sysled_on(){	int fd;	arg.pin= SYS_LED;	arg.data = 1;	ioctl(fd, IOCTL_GPIO_SETOUTPUT, &arg);}void sysled_off(){        arg.pin= SYS_LED;        arg.data = 0;        ioctl(fd, IOCTL_GPIO_SETOUTPUT, &arg);}int main(int argc, char *argv[]){        	fd = open ("/dev/gpio", O_RDWR);	while (1){		sysled_on();		sleep(1);		sysled_off();	}	close(fd);	}