*
* Gets all devices belonging to @subsystem.
*
- * Returns: (element-type GUdevDevice) (transfer full): A list of #GUdevDevice objects. The caller should free the result by using g_object_unref() on each element in the list and then g_list_free() on the list.
+ * Returns: (nullable) (element-type GUdevDevice) (transfer full): A
+ * list of #GUdevDevice objects. The caller should free the result by
+ * using g_object_unref() on each element in the list and then
+ * g_list_free() on the list.
*/
GList *
g_udev_client_query_by_subsystem (GUdevClient *client,
*
* Looks up a device for a type and device number.
*
- * Returns: (transfer full): A #GUdevDevice object or %NULL if the device was not found. Free with g_object_unref().
+ * Returns: (nullable) (transfer full): A #GUdevDevice object or %NULL
+ * if the device was not found. Free with g_object_unref().
*/
GUdevDevice *
g_udev_client_query_by_device_number (GUdevClient *client,
*
* Looks up a device for a device file.
*
- * Returns: (transfer full): A #GUdevDevice object or %NULL if the device was not found. Free with g_object_unref().
+ * Returns: (nullable) (transfer full): A #GUdevDevice object or %NULL
+ * if the device was not found. Free with g_object_unref().
*/
GUdevDevice *
g_udev_client_query_by_device_file (GUdevClient *client,
*
* Looks up a device for a sysfs path.
*
- * Returns: (transfer full): A #GUdevDevice object or %NULL if the device was not found. Free with g_object_unref().
+ * Returns: (nullable) (transfer full): A #GUdevDevice object or %NULL
+ * if the device was not found. Free with g_object_unref().
*/
GUdevDevice *
g_udev_client_query_by_sysfs_path (GUdevClient *client,
*
* Looks up a device for a subsystem and name.
*
- * Returns: (transfer full): A #GUdevDevice object or %NULL if the device was not found. Free with g_object_unref().
+ * Returns: (nullable) (transfer full): A #GUdevDevice object or %NULL
+ * if the device was not found. Free with g_object_unref().
*/
GUdevDevice *
g_udev_client_query_by_subsystem_and_name (GUdevClient *client,