printf("N\n");
r = do_mknod("/sys/block/mmcblk1", "mmcblk1p3", 1, 1);
if (r < 0) {
fprintf(stderr, "Failed to create mmcblk1p3\n");
}
printf("N\n");
r = do_mknod("/sys/block/mmcblk1", "mmcblk1p3", 1, 1);
if (r < 0) {
fprintf(stderr, "Failed to create mmcblk1p3\n");
}