unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device);
unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device);
const char *udev_device_get_sysattr_value(struct udev_device *udev_device, const char *sysattr);
+int udev_device_set_sysattr_value(struct udev_device *udev_device, const char *sysattr, char *value);
int udev_device_has_tag(struct udev_device *udev_device, const char *tag);
/*