1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2 3.. _compat: 4 5******* 6Changes 7******* 8 9The following chapters document the evolution of the V4L2 API, errata or 10extensions. They are also intended to help application and driver 11writers to port or update their code. 12 13 14.. toctree:: 15 :maxdepth: 1 16 17 diff-v4l 18 hist-v4l2 19