From 943b0830cebe4711354945ed3cb44e84152aaca0 Mon Sep 17 00:00:00 2001 From: "Mark M. Hoffman" Date: Fri, 15 Jul 2005 21:39:18 -0400 Subject: [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 Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/lm90.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'drivers/hwmon/lm90.c') diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index a67dcadf7cb0..c1e8d0e965f7 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -77,6 +77,8 @@ #include #include #include +#include +#include /* * Addresses to scan @@ -200,6 +202,7 @@ static struct i2c_driver lm90_driver = { struct lm90_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 */ @@ -500,6 +503,12 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) lm90_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 exit_detach; + } + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr); device_create_file(&new_client->dev, @@ -524,6 +533,8 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) return 0; +exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -547,15 +558,18 @@ static void lm90_init_client(struct i2c_client *client) static int lm90_detach_client(struct i2c_client *client) { + struct lm90_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; } -- cgit v1.2.2