Re: [PATCH] bad temperature values from w83781d in 2.6.22

From: Jean Delvare
Date: Sun Aug 12 2007 - 14:18:11 EST


On Thu, 9 Aug 2007 08:26:19 -0400, Mark M. Hoffman wrote:
> Author: Mark M. Hoffman <mhoffman@xxxxxxxxxxxxx>
> Date: Thu Aug 9 08:12:46 2007 -0400
>
> hwmon: fix w83781d temp sensor type setting
>
> Commit 348753379a7704087603dad403603e825422fd9a introduced a regression that
> caused temp2 and temp3 sensor type settings to be written to temp1 instead.
> The result is that temp sensor readings could be way off.
>
> Signed-off-by: Mark M. Hoffman <mhoffman@xxxxxxxxxxxxx>

Good catch, sorry for messing up. My test chip is a W83781D, it doesn't
have thermal sensor type selection, so I couldn't test that.

Acked-by: Jean Delvare <khali@xxxxxxxxxxxx>

> diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
> index f85b48f..c95909c 100644
> --- a/drivers/hwmon/w83781d.c
> +++ b/drivers/hwmon/w83781d.c
> @@ -740,9 +740,9 @@ store_sensor(struct device *dev, struct device_attribute *da,
> static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
> show_sensor, store_sensor, 0);
> static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
> - show_sensor, store_sensor, 0);
> + show_sensor, store_sensor, 1);
> static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
> - show_sensor, store_sensor, 0);
> + show_sensor, store_sensor, 2);
>
> /* I2C devices get this name attribute automatically, but for ISA devices
> we must create it by ourselves. */


--
Jean Delvare
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