Source of hih6130.c - linux-imx - PHYTEC BitBucket (Stash)

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/**
 * hih6130_show_temperature() - show temperature measurement value in sysfs
 * @dev: device
 * @attr: device attribute
 * @buf: sysfs buffer (PAGE_SIZE) where measurement values are written to
 *
 * Will be called on read access to temp1_input sysfs attribute.
 * Returns number of bytes written into buffer, negative errno on error.
 */
static ssize_t hih6130_show_temperature(struct device *dev,
static ssize_t hih6130_temperature_show(struct device *dev,
                    struct device_attribute *attr,
                    char *buf)
{
    struct hih6130 *hih6130 = dev_get_drvdata(dev);
    int ret;
​
    ret = hih6130_update_measurements(dev);
    if (ret < 0)
        return ret;
    return sprintf(buf, "%d\n", hih6130->temperature);
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​
/**
 * hih6130_show_humidity() - show humidity measurement value in sysfs
 * @dev: device
 * @attr: device attribute
 * @buf: sysfs buffer (PAGE_SIZE) where measurement values are written to
 *
 * Will be called on read access to humidity1_input sysfs attribute.
 * Returns number of bytes written into buffer, negative errno on error.
 */
static ssize_t hih6130_show_humidity(struct device *dev,
static ssize_t hih6130_humidity_show(struct device *dev,
                     struct device_attribute *attr, char *buf)
{
    struct hih6130 *hih6130 = dev_get_drvdata(dev);
    int ret;
​
    ret = hih6130_update_measurements(dev);
    if (ret < 0)
        return ret;
    return sprintf(buf, "%d\n", hih6130->humidity);
}
​
/* sysfs attributes */
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, hih6130_show_temperature,
    NULL, 0);
static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO, hih6130_show_humidity,
    NULL, 0);
static SENSOR_DEVICE_ATTR_RO(temp1_input, hih6130_temperature, 0);
static SENSOR_DEVICE_ATTR_RO(humidity1_input, hih6130_humidity, 0);
​
static struct attribute *hih6130_attrs[] = {
    &sensor_dev_attr_temp1_input.dev_attr.attr,
    &sensor_dev_attr_humidity1_input.dev_attr.attr,
    NULL
};
​
ATTRIBUTE_GROUPS(hih6130);
​
static int hih6130_probe(struct i2c_client *client,