udev_device_get_property_value
const char *udev_device_get_property_value(struct udev_device *udev_device,
return udev_device_get_property_value(udev_device, "subsystem");
return udev_device_get_property_value(udev_device, "driver");
class = atoi(udev_device_get_property_value(udev_dev, "devtype"));
class = atoi(udev_device_get_property_value(udev_dev, "devtype"));