static ssize_t set_analog_out_reg(struct device *dev, const char *buf,
static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
static ssize_t set_analog_out_reg(struct device *dev, const char *buf,		size_t count){	struct i2c_client *client = to_i2c_client(dev);	struct adm1026_data *data = i2c_get_clientdata(client);	int val = simple_strtol(buf, NULL, 10);	down(&data->update_lock);	data->analog_out = DAC_TO_REG(val);	adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);	up(&data->update_lock);	return count;}