C++ (Cpp) tmp421_init_client示例

示例#1

文件： tmp421.c 项目： ARMWorks/FA_2451_Linux_Kernel

static int tmp421_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct tmp421_data *data;
	int err;

	data = devm_kzalloc(&client->dev, sizeof(struct tmp421_data),
			    GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	i2c_set_clientdata(client, data);
	mutex_init(&data->update_lock);
	data->channels = id->driver_data;

	err = tmp421_init_client(client);
	if (err)
		return err;

	err = sysfs_create_group(&client->dev.kobj, &tmp421_group);
	if (err)
		return err;

	data->hwmon_dev = hwmon_device_register(&client->dev);
	if (IS_ERR(data->hwmon_dev)) {
		err = PTR_ERR(data->hwmon_dev);
		data->hwmon_dev = NULL;
		goto exit_remove;
	}
	return 0;

exit_remove:
	sysfs_remove_group(&client->dev.kobj, &tmp421_group);
	return err;
}

示例#2

文件： tmp421.c 项目： AshishNamdev/linux

static int tmp421_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct device *dev = &client->dev;
	struct device *hwmon_dev;
	struct tmp421_data *data;
	int i, err;

	data = devm_kzalloc(dev, sizeof(struct tmp421_data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	mutex_init(&data->update_lock);
	data->channels = id->driver_data;
	data->client = client;

	err = tmp421_init_client(client);
	if (err)
		return err;

	for (i = 0; i < data->channels; i++)
		data->temp_config[i] = HWMON_T_INPUT | HWMON_T_FAULT;

	data->chip.ops = &tmp421_ops;
	data->chip.info = data->info;

	data->info[0] = &data->temp_info;

	data->temp_info.type = hwmon_temp;
	data->temp_info.config = data->temp_config;

	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
							 data,
							 &data->chip,
							 NULL);
	return PTR_ERR_OR_ZERO(hwmon_dev);
}

示例#3

文件： tmp421.c 项目： ChineseDr/linux

static int tmp421_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
{
    struct device *dev = &client->dev;
    struct device *hwmon_dev;
    struct tmp421_data *data;
    int err;

    data = devm_kzalloc(dev, sizeof(struct tmp421_data), GFP_KERNEL);
    if (!data)
        return -ENOMEM;

    mutex_init(&data->update_lock);
    data->channels = id->driver_data;
    data->client = client;

    err = tmp421_init_client(client);
    if (err)
        return err;

    hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
                data, tmp421_groups);
    return PTR_ERR_OR_ZERO(hwmon_dev);
}