Documentation: Add descriptions for environment variables

Describe the environment variables used in libcamera, excluded
variables are `LIBCAMERA_IPA_FORCE_C_API` and `LIBCAMERA_IPA_PROXY_PATH`,
the former because it is likely to be removed and the later because
it has no current use-case.

Add a brief explanation for the IPA configuration and IPA modules.
List all the available Log levels and categories and add a short guide
on how to use them for debugging.

Signed-off-by: Sebastian Fricke <sebastian.fricke.linux@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Sebastian Fricke 2020-11-20 16:52:34 +01:00 committed by Laurent Pinchart
parent d769cbb834
commit 3fde82d849
3 changed files with 136 additions and 0 deletions

View file

@ -52,6 +52,7 @@ if sphinx.found()
'conf.py',
'contributing.rst',
'docs.rst',
'environment_variables.rst',
'index.rst',
'guides/introduction.rst',
'guides/application-developer.rst',