On Thu, 6 May 2004, Nate Lawson wrote:
> > Does devd receive lid status events? I'm thinking that it would be
> > advantageous for my battery life if I could throttle the cpu down whenever
> > the lid is closed.
>
> cat /etc/devd.conf:
> # Examples of notify hooks. A notify is a generic way for a kernel
> # subsystem to send event notification to userland.
>
> If you want to change CPU idle states and/or throttling on AC line
> transition, see the appropriate values in /etc/rc.conf. But for one-offs
> like lid to control CPU, using devd.conf and a small script is the way to
> go.
>
> -Nate
Good deal, it works as avertised. I even learned a bit of shell scripting
in the process of writing a simple speed switching script. :)
Of course, the real question is whether or not it'll actually help battery
life at all; this is a mobile celeron, I suspect that I won't have much of
an impact. Ah well.
Mike "Silby" Silbersack