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#include "linux/module.h"
#include "linux/kernel.h"
#include <linux/hwmon.h>
#include "linux/i2c.h"
static int ina260_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
*val=5;
return 0;
}
static int ina260_write(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long val)
{
return 0;
}
static umode_t ina260_is_visible(const void *drvdata,
enum hwmon_sensor_types type,
u32 attr, int channel){
return 0444;
}
#define HWMON_CHANNEL_INFO(stype, ...) \
(&(struct hwmon_channel_info) { \
.type = hwmon_##stype, \
.config = (u32 []) { \
__VA_ARGS__, 0 \
} \
})
static const struct hwmon_channel_info * ina260_info[] = {
HWMON_CHANNEL_INFO(power,HWMON_P_INPUT),
NULL
};
static const struct hwmon_ops ina260_hwmon_ops = {
.is_visible = ina260_is_visible,
.read = ina260_read,
.write = ina260_write,
};
static const struct hwmon_chip_info ina260_chip_info = {
.ops = &ina260_hwmon_ops,
.info = ina260_info,
};
/*const struct attribute_group *extra_groups[] = {
NULL
};*/
static int ina260_probe_new(struct i2c_client *client){
struct device *hwmon_dev;
hwmon_dev=hwmon_device_register_with_info(&client->dev,client->name,NULL,
&ina260_chip_info,NULL);
if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev);
return 0;
}
static int ina260_remove(struct i2c_client *client){
printk("Unregister client...\n");
hwmon_device_unregister(&client->dev);
return 0;
}
static const struct i2c_device_id ina260_ids[] = {
{ "ina260", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c,ina260_ids);
static struct i2c_driver ina260_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "ina260HWMON"
},
.probe_new = ina260_probe_new,
.remove = ina260_remove,
.id_table = ina260_ids
};
static int __init ina260_init(void){
printk("Init\n");
i2c_add_driver(&ina260_driver);
return 0;
}
static void __exit ina260_exit(void){
printk("Quit\n");
i2c_del_driver(&ina260_driver);
}
module_init(ina260_init);
module_exit(ina260_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Loïc Guegan");
MODULE_DESCRIPTION("INA260 Texas Instruments");
MODULE_VERSION("1.0");
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