static VALUE getSectorSize(VALUE obj, VALUE path) {
	char *dev = StringValuePtr(path);

	unsigned int fd = open(dev, O_RDONLY | O_NONBLOCK);
	if(fd < 0) return Qnil;

	unsigned int sSize = 0;
	short status = ioctl(fd, BLKSSZGET, &sSize);
	close(fd);
	if(status < 0)  return Qnil;

	return UINT2NUM(sSize);
}
