LXR linux/drivers/hwmon/adt7410.c

   1/*
   2 * ADT7410/ADT7420 digital temperature sensor driver
   3 *
   4 * Copyright 2012-2013 Analog Devices Inc.
   5 *   Author: Lars-Peter Clausen <lars@metafoo.de>
   6 *
   7 * Licensed under the GPL-2 or later.
   8 */
   9
  10#include <linux/module.h>
  11#include <linux/init.h>
  12#include <linux/i2c.h>
  13
  14#include "adt7x10.h"
  15
  16static int adt7410_i2c_read_word(struct device *dev, u8 reg)
  17{
  18        return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
  19}
  20
  21static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
  22{
  23        return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
  24}
  25
  26static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
  27{
  28        return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
  29}
  30
  31static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
  32{
  33        return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
  34}
  35
  36static const struct adt7x10_ops adt7410_i2c_ops = {
  37        .read_word = adt7410_i2c_read_word,
  38        .write_word = adt7410_i2c_write_word,
  39        .read_byte = adt7410_i2c_read_byte,
  40        .write_byte = adt7410_i2c_write_byte,
  41};
  42
  43static int adt7410_i2c_probe(struct i2c_client *client,
  44        const struct i2c_device_id *id)
  45{
  46        if (!i2c_check_functionality(client->adapter,
  47                        I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
  48                return -ENODEV;
  49
  50        return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
  51}
  52
  53static int adt7410_i2c_remove(struct i2c_client *client)
  54{
  55        return adt7x10_remove(&client->dev, client->irq);
  56}
  57
  58static const struct i2c_device_id adt7410_ids[] = {
  59        { "adt7410", 0 },
  60        { "adt7420", 0 },
  61        {}
  62};
  63MODULE_DEVICE_TABLE(i2c, adt7410_ids);
  64
  65static struct i2c_driver adt7410_driver = {
  66        .class          = I2C_CLASS_HWMON,
  67        .driver = {
  68                .name   = "adt7410",
  69                .pm     = ADT7X10_DEV_PM_OPS,
  70        },
  71        .probe          = adt7410_i2c_probe,
  72        .remove         = adt7410_i2c_remove,
  73        .id_table       = adt7410_ids,
  74        .address_list   = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
  75};
  76module_i2c_driver(adt7410_driver);
  77
  78MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
  79MODULE_DESCRIPTION("ADT7410/AD7420 driver");
  80MODULE_LICENSE("GPL");
  81