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Commit feca3132 authored by Joshua Scott's avatar Joshua Scott Committed by Guenter Roeck
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hwmon: (adt7470) Add write support to alarm_mask 



Add write support for the alarm_mask. A base of 0 is provided so that
either hex or decimal can be used. The hex format when reading alarm_mask
is unchanged.

Signed-off-by: default avatarJoshua Scott <joshua.scott@alliedtelesis.co.nz>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent c7cefce0

drivers/hwmon/adt7470.c

+24 −1
Original line number Diff line number Diff line
@@ -545,6 +545,28 @@ static ssize_t show_alarm_mask(struct device *dev, 
	return sprintf(buf, "%x\n", data->alarms_mask);

}



static ssize_t set_alarm_mask(struct device *dev,

			      struct device_attribute *devattr,

			      const char *buf,

			      size_t count)

{

	struct adt7470_data *data = dev_get_drvdata(dev);

	long mask;



	if (kstrtoul(buf, 0, &mask))

		return -EINVAL;



	if (mask & ~0xffff)

		return -EINVAL;



	mutex_lock(&data->lock);

	data->alarms_mask = mask;

	adt7470_write_word_data(data->client, ADT7470_REG_ALARM1_MASK, mask);

	mutex_unlock(&data->lock);



	return count;

}



static ssize_t show_fan_max(struct device *dev,

			    struct device_attribute *devattr,

			    char *buf)
@@ -989,7 +1011,8 @@ static ssize_t show_alarm(struct device *dev, 
		return sprintf(buf, "0\n");

}



static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL);

static DEVICE_ATTR(alarm_mask, S_IWUSR | S_IRUGO, show_alarm_mask,

		   set_alarm_mask);

static DEVICE_ATTR(num_temp_sensors, S_IWUSR | S_IRUGO, show_num_temp_sensors,

		   set_num_temp_sensors);

static DEVICE_ATTR(auto_update_interval, S_IWUSR | S_IRUGO,