Re: [sensors] Is there a need for a oncalibrationneeded event

I don't know if all the sensors need it, but clearly some do; the 
current Device Orientation API has a 
[compassneedscalibration](https://www.w3.org/TR/orientation-event/#compassneedscalibration),
 which has the same characteristic as you describe regarding 
preventing defaults.

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Received on Thursday, 17 March 2016 13:53:02 UTC