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authorMark M. Hoffman <mhoffman@lightlink.com>2005-07-15 21:39:18 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-05 09:14:08 -0700
commit943b0830cebe4711354945ed3cb44e84152aaca0 (patch)
tree1963da8d8867069617404a8f92739035c6faca02 /drivers/hwmon/lm83.c
parent1236441f38b6a98caf4c7983e7efdecc2d1527b5 (diff)
downloadlinux-943b0830cebe4711354945ed3cb44e84152aaca0.tar.gz
[PATCH] I2C hwmon: add hwmon sysfs class to drivers
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>
Diffstat (limited to 'drivers/hwmon/lm83.c')
-rw-r--r--drivers/hwmon/lm83.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
index a49008b444c8..f3f3901c7294 100644
--- a/drivers/hwmon/lm83.c
+++ b/drivers/hwmon/lm83.c
@@ -34,6 +34,8 @@
 #include <linux/i2c.h>
 #include <linux/i2c-sensor.h>
 #include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
 
 /*
  * Addresses to scan
@@ -138,6 +140,7 @@ static struct i2c_driver lm83_driver = {
 
 struct lm83_data {
 	struct i2c_client client;
+	struct class_device *class_dev;
 	struct semaphore update_lock;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -312,6 +315,12 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 	 */
 
 	/* 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 exit_detach;
+	}
+
 	device_create_file(&new_client->dev,
 			   &sensor_dev_attr_temp1_input.dev_attr);
 	device_create_file(&new_client->dev,
@@ -340,6 +349,8 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
 
 	return 0;
 
+exit_detach:
+	i2c_detach_client(new_client);
 exit_free:
 	kfree(data);
 exit:
@@ -348,15 +359,18 @@ exit:
 
 static int lm83_detach_client(struct i2c_client *client)
 {
+	struct lm83_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;
 }