Kernel compatible with "CPU tuner" (market app)?

[SweetBearCub]

I've been playing around with a market app called "CPU tuner" (for rooted phones only) which is similar to SetCPU, but free, without messing with APKs.

The app has a diagnostic portion which tests the phone to make sure that it has all the access it needs to function fully. When I run it, it reports that it cannot set the minimum or maximum CPU frequencies. As far as I know, this is because those functions are either restricted by the current (stock Eclair 2.1) kernel, or possibly the code is just not there.

If my phone is already rooted, is it possible to load a kernel that does allow these functions? If so, I'd appreciate a link to such a kernel, as I'm a virtual noob when it comes to this. I can however follow directions and understand concepts.

Thanks..