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@xxxxxxxxxxxx>
Cc: Aurelien Jarno <aurelien@xxxxxxxxxxx>
---
drivers/hwmon/pcf8591.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- linux-2.6.36-rc6.orig/drivers/hwmon/pcf8591.c 2010-08-02 00:11:14.000000000 +0200
+++ linux-2.6.36-rc6/drivers/hwmon/pcf8591.c 2010-10-05 13:03:39.000000000 +0200
@@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
+#include <linux/hwmon.h>
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
@@ -71,6 +72,7 @@ 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 +223,12 @@ static int pcf8591_probe(struct i2c_clie
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 +242,9 @@ 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));
--
Jean Delvare
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