Re: Difference between select and enable in Kconfig

From: Randy.Dunlap (rddunlap_at_osdl.org)
Date: 12/21/03

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    Date:	Sat, 20 Dec 2003 20:54:33 -0800
To: Marcel Holtmann <marcel@holtmann.org>

    On Sun, 21 Dec 2003 03:46:54 +0100 Marcel Holtmann <marcel@holtmann.org> wrote:

    | Hi,
    |
    | while porting some of my drivers to 2.6 which use the firmware loader
    | for example I came to the question whether to use select or enable to
    | achieve the desired result. Looking at the documention don't gives me
    | the answer and from zconf.l I feel that both options are the same. Can
    | anyone please explain me the differences if there are any?

    I agree, they look like synonyms.
    There's nothing about "enable" in Documentation/kbuild/kconfig-language.txt
    and there's evidence in zconf.l (as you mention) and in menu.c
    that they are the same:

                            case P_SELECT:
                                    sym2 = prop_get_symbol(prop);
                                    if ((sym->type != S_BOOLEAN && sym->type != S_TRISTATE) ||
                                        (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE))
                                            fprintf(stderr, "%s:%d:warning: enable is only allowed with boolean and tristate symbols\n",
                                                                            ~~~~~~ 

    --
~Randy
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