参数传递问题

struct ov426 {
        struct i2c_client       *client;
        struct clk              *xvclk;
        struct gpio_desc        *power_gpio;
        struct gpio_desc        *reset_gpio;
    ..................................
}
static int ov426_reinit(struct i2c_client *client)
{
        struct device *dev = &client->dev;
        ..................................
}

static DEVICE_ATTR(my_attr, S_IRUGO | S_IWUSR, my_attr_show, my_attr_store);

int add_sysfs_interfaces(struct device *dev)
{
         int result;
         struct class *my_class;

         my_class = class_create(THIS_MODULE, "my");
         if (IS_ERR(my_class)) {
                 pr_err("Failed to create class\n");
                 return PTR_ERR(my_class);
    }

         dev = device_create(my_class, NULL, MKDEV(0, 0), NULL, "sensor");
         result = device_create_file(dev, &dev_attr_my_attr);
         if (result) {
                 pr_err("Failed to create sysfs file\n");
                 class_destroy(my_class);
                 return result;
    }
         return 0;
}

static ssize_t my_attr_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
        int ret = -1;
        struct i2c_client *client;
        client = container_of(dev, struct i2c_client, dev);
    switch (buf[0])
    {
    case '0':
        mode = 0;
        ret = count;

        ov426_reinit(client);
        break;

    case '1':
        mode = 1;
        ret = count;

        ov426_reinit(client);
        break;

default:
        printk(KERN_INFO "%s: err paramater\n", __func__);
        break;
    }

    return ret;
}

代码逻辑这样，如果我要在my_attr_store函数中调用ov426_reinit函数时，参数应该怎么传递啊，求帮助，这一块有点混乱