static ssize_t show_pwm1_enable(struct device *dev, char *buf)
static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t show_pwm1_enable(struct device *dev, char *buf){	struct lm63_data *data = lm63_update_device(dev);	return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);}