diff options
Diffstat (limited to 'drivers/hwmon/pcf8591.c')
| -rw-r--r-- | drivers/hwmon/pcf8591.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/hwmon/pcf8591.c b/drivers/hwmon/pcf8591.c index d4478794..d7df0e6 100644 --- a/drivers/hwmon/pcf8591.c +++ b/drivers/hwmon/pcf8591.c @@ -23,6 +23,8 @@ #include <linux/slab.h> #include <linux/i2c.h> #include <linux/mutex.h> +#include <linux/err.h> +#include <linux/hwmon.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, @@ -71,6 +73,7 @@ MODULE_PARM_DESC(input_mode, #define REG_TO_SIGNED(reg) (((reg) & 0x80)?((reg) - 256):(reg)) struct pcf8591_data { + struct device *hwmon_dev; struct mutex update_lock; u8 control; @@ -221,6 +224,12 @@ static int pcf8591_probe(struct i2c_client *client, goto exit_sysfs_remove; } + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_sysfs_remove; + } + return 0; exit_sysfs_remove: @@ -234,6 +243,9 @@ exit: static int pcf8591_remove(struct i2c_client *client) { + struct pcf8591_data *data = i2c_get_clientdata(client); + + hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt); sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group); kfree(i2c_get_clientdata(client)); |