2.6 allmodconfig question

I remember a discussion a while ago where it was mentioned that one could force certain drivers to be compiled in to the kernel by creating a certain file with a list of the desired exeptions to the allmodconfig target. Is this still true for 2.6?

Is there documentation somewhere that I should read? I don't seem to be able to find it.

Else, could some kind soul name the file and show the format?

Thanks,

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