HDAPS

[Kay Sievers]

On Mon, 2006-10-02 at 19:52 +0100, Richard Hughes wrote:
> On Mon, 2006-10-02 at 13:34 +0100, Bastien Nocera wrote:
> > On Mon, 2006-10-02 at 12:35 +0100, Richard Hughes wrote:
> > <snip>
> > > IMO, the kernel is the place where over-temperature is actioned, so it
> > > probably makes sense for the "laptop-is-falling" code to be there too.
> > > But then userspace can do funcy things and set policy. Opinions
> > > welcomed.
> > 
> > Overheating isn't as time-critical as falling down. Falling down to
> > possible failure < 1 sec. Overheating to possible failure ~= minutes?
> > 
> > And there isn't much of a policy either. It should park the heads, and
> > tell userspace about it.
> 
> Yes, you are probably correct. I'll start a thread on LKML.

It's a bit more complicated, you need to detect movements like you see
in a car while driving a rough road, and disable the automatic head
parking. That's some kind of policy - not sure if you need to be able to
tweak that in the kernel, or communicate with userspace for that, but
it's at least not too trivial.

Kay