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authorMark M. Hoffman <mhoffman@lightlink.com>2005-07-16 03:39:18 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-05 18:14:08 +0200
commit943b0830cebe4711354945ed3cb44e84152aaca0 (patch)
tree1963da8d8867069617404a8f92739035c6faca02 /drivers/hwmon/gl518sm.c
parent[PATCH] I2C hwmon: hwmon sysfs class (diff)
downloadlinux-943b0830cebe4711354945ed3cb44e84152aaca0.tar.xz
linux-943b0830cebe4711354945ed3cb44e84152aaca0.zip
[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/gl518sm.c')
-rw-r--r--drivers/hwmon/gl518sm.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
index 6bedf729dcf5..49972929a69b 100644
--- a/drivers/hwmon/gl518sm.c
+++ b/drivers/hwmon/gl518sm.c
@@ -42,6 +42,8 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
@@ -117,6 +119,7 @@ static inline u8 FAN_TO_REG(long rpm, int div)
/* Each client has this additional data */
struct gl518_data {
struct i2c_client client;
+ struct class_device *class_dev;
enum chips type;
struct semaphore update_lock;
@@ -419,6 +422,12 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
gl518_init_client((struct i2c_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 exit_detach;
+ }
+
device_create_file(&new_client->dev, &dev_attr_in0_input);
device_create_file(&new_client->dev, &dev_attr_in1_input);
device_create_file(&new_client->dev, &dev_attr_in2_input);
@@ -450,6 +459,8 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
+exit_detach:
+ i2c_detach_client(new_client);
exit_free:
kfree(data);
exit:
@@ -477,16 +488,18 @@ static void gl518_init_client(struct i2c_client *client)
static int gl518_detach_client(struct i2c_client *client)
{
+ struct gl518_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;
}