test114 driver

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/device.h>

#define DRIVER_NAME "test114"

static struct timer_list test114_update_timer;

struct i2c_client *test114_i2c;
void test114_update_device(unsigned long data)
{
    struct i2c_client *client = test114_i2c;
    i2c_smbus_read_byte_data(client, 0);
    mod_timer(&test114_update_timer, jiffies + msecs_to_jiffies(1000));
    printk("Tick...\n");
}

static int __devinit test114_probe(struct i2c_client *client,
                  const struct i2c_device_id *id)
{
    int status;

    if (!i2c_check_functionality(client->adapter,
                     I2C_FUNC_SMBUS_WORD_DATA)) {
        dev_err(&client->dev, "adapter doesn't support SMBus word "
            "transactions\n");
        return -ENODEV;
    }

    setup_timer(&test114_update_timer, test114_update_device, 0);

    status = mod_timer(&test114_update_timer, jiffies + msecs_to_jiffies(5000));

    test114_i2c = client;
    dev_info(&client->dev, "initialized\n");

    return 0;
}

static int __devexit test114_remove(struct i2c_client *client)
{
    del_timer(&test114_update_timer);
    return 0;
}
static const struct i2c_device_id test114_id[] = {
    { "test114", 0 },
    { }
};
MODULE_DEVICE_TABLE(i2c, test114_id);

static struct i2c_driver test114_driver = {
    .driver.name    = DRIVER_NAME,
    .probe      = test114_probe,
    .remove     = __devexit_p(test114_remove),
    .id_table   = test114_id,
};

static int __init test114_init(void)
{
    return i2c_add_driver(&test114_driver);
}
module_init(test114_init);

static void __exit test114_exit(void)
{
    i2c_del_driver(&test114_driver);
}
module_exit(test114_exit);

MODULE_AUTHOR("sza2");
MODULE_DESCRIPTION("test114 driver");
MODULE_LICENSE("GPL");