kconfig-language.rst (ff36e78fdb251b9fa65028554689806961e011eb) kconfig-language.rst (def2fbffe62c00c330c7f41584a356001179c59c)
1================
2Kconfig Language
3================
4
5Introduction
6------------
7
8The configuration database is a collection of configuration options

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168
169 The following values are possible:
170
171 === === ============= ==============
172 FOO BAR BAZ's default choice for BAZ
173 === === ============= ==============
174 n y n N/m/y
175 m y m M/y/n
1================
2Kconfig Language
3================
4
5Introduction
6------------
7
8The configuration database is a collection of configuration options

--- 159 unchanged lines hidden (view full) ---

168
169 The following values are possible:
170
171 === === ============= ==============
172 FOO BAR BAZ's default choice for BAZ
173 === === ============= ==============
174 n y n N/m/y
175 m y m M/y/n
176 y y y Y/n
176 y y y Y/m/n
177 y n * N
178 === === ============= ==============
179
180 This is useful e.g. with multiple drivers that want to indicate their
181 ability to hook into a secondary subsystem while allowing the user to
182 configure that subsystem out without also having to unset these drivers.
183
177 y n * N
178 === === ============= ==============
179
180 This is useful e.g. with multiple drivers that want to indicate their
181 ability to hook into a secondary subsystem while allowing the user to
182 configure that subsystem out without also having to unset these drivers.
183
184 Note: If the combination of FOO=y and BAR=m causes a link error,
185 you can guard the function call with IS_REACHABLE()::
186
187 foo_init()
188 {
189 if (IS_REACHABLE(CONFIG_BAZ))
190 baz_register(&foo);
191 ...
192 }
193
184- limiting menu display: "visible if" <expr>
185
186 This attribute is only applicable to menu blocks, if the condition is
187 false, the menu block is not displayed to the user (the symbols
188 contained there can still be selected by other symbols, though). It is
189 similar to a conditional "prompt" attribute for individual menu
190 entries. Default value of "visible" is true.
191

--- 508 unchanged lines hidden --- 		194- limiting menu display: "visible if" <expr>
195
196 This attribute is only applicable to menu blocks, if the condition is
197 false, the menu block is not displayed to the user (the symbols
198 contained there can still be selected by other symbols, though). It is
199 similar to a conditional "prompt" attribute for individual menu
200 entries. Default value of "visible" is true.
201

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