applicable everywhere (see syntax).
- type definition: "bool"/"tristate"/"string"/"hex"/"int"
+
Every config option must have a type. There are only two basic types:
tristate and string; the other types are based on these two. The type
definition optionally accepts an input prompt, so these two examples
prompt "Networking support"
- input prompt: "prompt" <prompt> ["if" <expr>]
+
Every menu entry can have at most one prompt, which is used to display
to the user. Optionally dependencies only for this prompt can be added
with "if".
- default value: "default" <expr> ["if" <expr>]
+
A config option can have any number of default values. If multiple
default values are visible, only the first defined one is active.
Default values are not limited to the menu entry where they are
Optionally dependencies for this default value can be added with "if".
- dependencies: "depends on" <expr>
+
This defines a dependency for this menu entry. If multiple
dependencies are defined, they are connected with '&&'. Dependencies
are applied to all other options within this menu entry (which also
default y
- reverse dependencies: "select" <symbol> ["if" <expr>]
+
While normal dependencies reduce the upper limit of a symbol (see
below), reverse dependencies can be used to force a lower limit of
another symbol. The value of the current menu symbol is used as the
the illegal configurations all over.
- weak reverse dependencies: "imply" <symbol> ["if" <expr>]
+
This is similar to "select" as it enforces a lower limit on another
symbol except that the "implied" symbol's value may still be set to n
from a direct dependency or with a visible prompt.
configure that subsystem out without also having to unset these drivers.
- 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
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
or equal to the first symbol and smaller than or equal to the second
symbol.
- help text: "help" or "---help---"
+
This defines a help text. The end of the help text is determined by
the indentation level, this means it ends at the first line which has
a smaller indentation than the first line of the help text.
the file as an aid to developers.
- misc options: "option" <symbol>[=<value>]
+
Various less common options can be defined via this option syntax,
which can modify the behaviour of the menu entry and its config
symbol. These options are currently possible:
The first five also start the definition of a menu entry.
config::
+
"config" <symbol>
<config options>
attributes as options.
menuconfig::
+
"menuconfig" <symbol>
<config options>