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[PATCH] I2C hwmon: add hwmon sysfs class to drivers

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This patch modifies sensors chip drivers to make use of the new
sysfs class "hwmon".

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark M. Hoffman
2005-07-15 21:39:18 -04:00
committed by Greg Kroah-Hartman
parent 1236441f38
commit 943b0830ce
33 changed files with 522 additions and 53 deletions
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16
drivers/hwmon/adm1021.c
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@@ -25,6 +25,8 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/hwmon.h>
#include <linux/err.h>
/* Addresses to scan */
@@ -89,6 +91,7 @@ clearing it. Weird, ey? --Phil */
/* Each client has this additional data */
struct adm1021_data {
struct i2c_client client;
struct class_device *class_dev;
enum chips type;
struct semaphore update_lock;
@@ -295,6 +298,12 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
adm1021_init_client(new_client);
/* Register sysfs hooks */
data->class_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
goto error2;
}
device_create_file(&new_client->dev, &dev_attr_temp1_max);
device_create_file(&new_client->dev, &dev_attr_temp1_min);
device_create_file(&new_client->dev, &dev_attr_temp1_input);
@@ -305,6 +314,8 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
error2:
i2c_detach_client(new_client);
error1:
kfree(data);
error0:
@@ -322,14 +333,17 @@ static void adm1021_init_client(struct i2c_client *client)
static int adm1021_detach_client(struct i2c_client *client)
{
struct adm1021_data *data = i2c_get_clientdata(client);
int err;
hwmon_device_unregister(data->class_dev);
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev, "Client deregistration failed, client not detached.\n");
return err;
}
kfree(i2c_get_clientdata(client));
kfree(data);
return 0;
}