/* "function" sysfs attribute */
static ssize_t
-show_function (struct device *_dev, char *buf)
+show_function (struct device *dev, char *buf)
{
- struct dummy *dum = the_controller;
+ struct dummy *dum = gadget_dev_to_dummy (dev);
- if (!dum->driver->function
- || strlen (dum->driver->function) > PAGE_SIZE)
+ if (!dum->driver || !dum->driver->function)
return 0;
- return snprintf (buf, PAGE_SIZE, "%s\n", dum->driver->function);
+ return scnprintf (buf, PAGE_SIZE, "%s\n", dum->driver->function);
}
DEVICE_ATTR (function, S_IRUGO, show_function, NULL);