At ${WORK} we frequently use single-digit milliTorr, as well as 1e-7
Torr or so, for lab measurements. I'm not sure that you want to support
sensors in that range; I'm just mentioning it in an attempt to quantify
a possible use case.
Take care,
-Konrad
On 1/2/19 11:31 AM, David Holland wrote:
On Wed, Jan 02, 2019 at 01:56:12PM -0500, Greg Troxel wrote:
> > I would make it Pa in the API and let userland translate to whatever
> > values we want to display by default.
>
> That seems somewhat reasonable, except that in my experience everybody
> wants to see atmospheric pressure in mb/hPa (if they aren't using inches
> or mm of Hg).
This is an integer API underneath, right? So the choice of kernel ->
user reporting unit should be made on precision and range grounds.
Which isn't much of a concern for atmospheric pressure as the possible
range is narrow, but one could imagine someone trying to use the same
interface for lab equipment.
