docs/manual: add ordering of kconfig options' attributes

We want to ensure all packages follow the same coding style, so we add a
blurb about the order of kconfig options' attributes:

  - first, the type and the prompt
  - the default value if needed
  - then dependencies of the 'depends on' category
  - followed by dependencies of the 'select' form
  - with eventually the help text

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2016-01-16 23:37:21 +01:00 committed by Thomas Petazzoni
parent 04d8fee3d7
commit cd6153680b

View file

@ -39,6 +39,15 @@ itself should be indented with one tab and two spaces, lines should
not be longer than 72 columns, and it must mention the upstream URL
of the project.
As a convention specific to Buildroot, the ordering of the attributes
is as follows:
1. The type of option: +bool+, +string+... with the prompt
2. If needed, the +default+ value(s)
3. Any dependency of the +depends on+ form
4. Any dependency of the +select+ form
5. The help keyword and help text.
You can add other sub-options into a +if BR2_PACKAGE_LIBFOO...endif+
statement to configure particular things in your software. You can look at
examples in other packages. The syntax of the +Config.in+ file is the same