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: Joshua Scott <joshua.scott@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/adt7470.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
index 94550d7..7d185a9 100644
--- a/drivers/hwmon/adt7470.c
+++ b/drivers/hwmon/adt7470.c
@@ -545,6 +545,27 @@ 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 (kstrtol(buf, 0, &mask))
+ return -EINVAL;
+
+ mask &= 0xffff;
+
+ 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 +1010,8 @@ 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,
--
2.9.0
--
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