* doxygen: remove @return command if function return void
When doxygen is upgraded to v1.9.8 (on ubuntu 24.04), doxygen
reports: "doxygen error: found documented return type for xxx
that does not return anything" for those functions which return
void but declare "@return" in doxygen comment.
Solution: remove "@return" for those cases, and update
guide document for how to write doxgen comment for functions.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
* doxygen: fixed a minor typo for uart doc
This error is found when building with doxygen 1.9.8, but not
detecetd on 1.9.1.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
- Add description on how to group macros.
- Add description for structs on how to write comments
for members when the name of member is too.
- Use @ref to link group instead of the html filenames.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Doxygen examples are grouped on different pages so that you can
easily link to pages of related types in the documentation.
For example, macro examples have their own page, and function
examples have their own page, which correspond to their own code
examples, such as "macro.h" or "function.h".
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Documentation is provided to clarify how to write
doxygen documentation for RT-Thread. This document
is also integrated as part of RT-Thread doxygen
documentation.
An example is also provided.
The original README.md is removed and integrated into
this document.
Updated github actions for doxygen too.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>