[lm-sensors] [RFC PATCH 09/10] lis3: Scale output values to mg

Daniel Mack daniel at caiaq.de
Tue Nov 10 14:31:15 CET 2009


On Tue, Nov 10, 2009 at 02:23:20PM +0100, Éric Piel wrote:
> Op 10-11-09 13:47, Daniel Mack schreef:
> > True, and I'm not against dropping legacy. However, if it affects every
> > user space application, we cannot simply change it. I happen to be
> > copied in this thread, so I can react on it, but all other users are
> > not.
> Yes in general I completely agree with you: if we define some interface
> that userspace is supposed to use, "we shall never change it". However,
> in this specific case I'm willing to accept the possibility of breakage.
> Because in the little chance that a program depends on this specific
> metric it is making too much assumption on the hardware anyway: so far,
> depending on the type of sensor (8b/12b, hdaps...) the values could be
> very different.

Does the change to the min/max parameters to input_set_abs_params()
also reflect the factor in which the multiplication factor alters?

In other words: If I scale the read value to the full range reported by
the input device - will I still get the same value before and after the
change? If that's the case, I guess the 'breakage' would be acceptable.

Daniel





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