Mine

#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/fb.h>

#include <asm/arch-omap/omapfb.h>


/*  #define OMAP_IOW(num, dtype)    _IOW('O', num, dtype) */
/*  #define OMAPFB_UPDATE_WINDOW    OMAP_IOW(47, struct omapfb_update_window) */
/*  #define OMAPFB_UPDATE_WINDOW_OLD    OMAP_IOW(41, struct omapfb_update_window_old) */
/*  #define OMAPFB_SET_UPDATE_MODE    OMAP_IOW(40, int) */

/*  enum omapfb_update_mode { */
/*  	    OMAPFB_UPDATE_DISABLED = 0, */
/*  	    OMAPFB_AUTO_UPDATE, */
/*  	    OMAPFB_MANUAL_UPDATE */
/* }; */


int main()
{

    typedef enum omapfb_update_mode update_mode;
    update_mode updateMode;

    updateMode = OMAPFB_AUTO_UPDATE;

    int infd = open( "/dev/fb0", O_RDWR);
    if (infd > 0) {
        if (ioctl( infd, OMAPFB_SET_UPDATE_MODE, &updateMode) < 0) {
            perror("ioctl(OMAPFB_SET_UPDATE_MODE)");
        }
        close(infd);
    } else {
        printf("NOPT!@\n");
    }

    return 0;
}