diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2016-06-20 02:56:22 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2016-07-09 17:33:47 +0200 |
| commit | 5f7e5e29ab60967a009d307dc4fdecce57efaa9c (patch) | |
| tree | af962fec6073ea173b8e16b04fa6a80afb65d3d9 /drivers/hwmon/lm75.c | |
| parent | hwmon: (lm75) Drop lm75_read_value and lm75_write_value (diff) | |
| download | linux-5f7e5e29ab60967a009d307dc4fdecce57efaa9c.tar.xz linux-5f7e5e29ab60967a009d307dc4fdecce57efaa9c.zip | |
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: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/lm75.c')
| -rw-r--r-- | drivers/hwmon/lm75.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 7b18cbd4a5ec..fe83f70ba62a 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -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 }; |