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Commit 5f7e5e29 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (lm75) Add update_interval attribute 



Since we know the chip's update interval, let's make it available
to the user.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 38aefb41

drivers/hwmon/lm75.c

+13 −0
Original line number Diff line number Diff line
@@ -159,16 +159,29 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da, 
	return count;

}



static ssize_t show_update_interval(struct device *dev,

				    struct device_attribute *da, char *buf)

{

	struct lm75_data *data = lm75_update_device(dev);



	if (IS_ERR(data))

		return PTR_ERR(data);



	return sprintf(buf, "%u\n", jiffies_to_msecs(data->sample_time));

}



static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,

			show_temp, set_temp, 1);

static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,

			show_temp, set_temp, 2);

static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);

static DEVICE_ATTR(update_interval, S_IRUGO, show_update_interval, NULL);



static struct attribute *lm75_attrs[] = {

	&sensor_dev_attr_temp1_input.dev_attr.attr,

	&sensor_dev_attr_temp1_max.dev_attr.attr,

	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,

	&dev_attr_update_interval.attr,



	NULL

};