On Sunday 02 September 2012 00:52:03 Yann Cantin wrote:

Hi,

before we add yet another sysfs interface, we should ask whether calibration
isn't a problem that should be solved with a common API.

	Regards
		Oliver

+static ssize_t ebeam_calibrated_set(struct device *dev,
+                                   struct device_attribute *attr,
+                                   const char *buf,
+                                   size_t count)
+{
+       struct ebeam_device *ebeam = dev_get_drvdata(dev);
+       int err, c;
+
+       err = kstrtoint(buf, 10, &c);
+       if (err)
+               return err;
+
+       if (c == 1) {
+               memcpy(&ebeam->cursetting, &ebeam->newsetting,
+                      sizeof(struct ebeam_settings));
+               ebeam->calibrated = true;
+               ebeam_setup_input(ebeam, ebeam->input);
+       } else {
+               memcpy(&ebeam->newsetting, &ebeam->cursetting,
+                      sizeof(struct ebeam_settings));
+               ebeam->calibrated = false;
+               ebeam_setup_input(ebeam, ebeam->input);
+       }
+
+       return count;
+}
+
+static DEVICE_ATTR(calibrated, S_IRUGO | S_IWUGO,
+                  ebeam_calibrated_get, ebeam_calibrated_set);
+
+static struct attribute *ebeam_attrs[] = {
+       &dev_attr_min_x.attr,
+       &dev_attr_min_y.attr,
+       &dev_attr_max_x.attr,
+       &dev_attr_max_y.attr,
+       &dev_attr_h1.attr,
+       &dev_attr_h2.attr,
+       &dev_attr_h3.attr,
+       &dev_attr_h4.attr,
+       &dev_attr_h5.attr,
+       &dev_attr_h6.attr,
+       &dev_attr_h7.attr,
+       &dev_attr_h8.attr,
+       &dev_attr_h9.attr,
+       &dev_attr_calibrated.attr,
+       NULL
+};
+

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