ssize_t device_show_bool(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct dev_ext_attribute *ea = to_ext_attr(attr);

	return snprintf(buf, PAGE_SIZE, "%d\n", *(bool *)(ea->var));
}
ssize_t device_show_bool(struct device *dev, struct device_attribute *attr,
			 char *buf)
{
	struct dev_ext_attribute *ea = to_ext_attr(attr);

	return snprintf(buf, PAGE_SIZE, "%d\n", *(bool *)(ea->var));
}