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kconfig: Document the new "visible if" syntax 

Signed-off-by: Michal Marek <mmarek@suse.cz>
hifive-unleashed-5.1
Michal Marek 2010-11-26 17:15:11 +01:00
parent 2d80eb0fa3
commit df835c2e7f
1 changed files with 9 additions and 1 deletions
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10
Documentation/kbuild/kconfig-language.txt
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@ -113,6 +113,13 @@ applicable everywhere (see syntax).
That will limit the usefulness but on the other hand avoid
the illegal configurations all over.
- limiting menu display: "visible if" <expr>
This attribute is only applicable to menu blocks, if the condition is
false, the menu block is not displayed to the user (the symbols
contained there can still be selected by other symbols, though). It is
similar to a conditional "prompt" attribude for individual menu
entries. Default value of "visible" is true.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
and hex symbols. The user can only input a value which is larger than
@ -303,7 +310,8 @@ menu:
"endmenu"
This defines a menu block, see "Menu structure" above for more
information. The only possible options are dependencies.
information. The only possible options are dependencies and "visible"
attributes.
if: