store_tabletXtilt(struct device *dev, const char *buf, size_t count)
store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
store_tabletXtilt(struct device *dev, const char *buf, size_t count){	struct aiptek *aiptek = dev_get_drvdata(dev);	int x;	if (aiptek == NULL)		return 0;	if (strcmp(buf, "disable") == 0) {		aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;	} else {		x = (int)simple_strtol(buf, NULL, 10);		if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) {			aiptek->newSetting.xTilt = x;		}	}	return count;}