diff options
| author | Jean Delvare <khali@linux-fr.org> | 2010-10-28 20:31:49 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2010-10-28 20:31:49 +0200 |
| commit | 4275fcd65d3b4a504b7779e532c81a927afd28c0 (patch) | |
| tree | 292e76b31cb801621ae578fde62c1a88b9c4bba5 /drivers/hwmon/pcf8591.c | |
| parent | 24377101023d3c66136123bd8b20441814da6a90 (diff) | |
hwmon: (pcf8591) Register as a hwmon device
Register PCF8591 devices as hwmon devices. There's little point in
implementing the standard sysfs interface if we don't register it in
a way libsensors will pick it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
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 d44787949851..d7df0e6c1ef4 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)); |