I saw a kernel option today in menuconfig that used braces for its checkbox.

{*}   Button

This isn't listed in the legend at the top of the screen.

[*] built-in  [ ] excluded  <M> module  < > module capable

What do the braces signify?

1 Answer 1


It represents an option that has been implied to a specific value by another option.

This Gentoo's wiki has a clear explanation and lists all the available types that menuconfig can display. For example: the hyphen is also listed there.

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