Messages in this thread | | | Subject | Re: [RFC] Regulator: Possibility of passing notifications of non alarm events. | From | Liam Girdwood <> | Date | Sun, 04 Jan 2009 10:31:18 +0000 |
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On Sat, 2009-01-03 at 21:11 +0000, Jonathan Cameron wrote: > Dear All, > > I am in the process of writing an hwmon driver for the Sensiron SHT15 humidity > sensor. > > In common (I assume) with lots of other devices, the formula for converting > the outputs of this chip to real units involves the supply voltage. > Unfortunately the chip doesn't itself have any means of measuring this. > Obviously this can be supplied via a board config if it is constant. > > As I have it connected to a DA9030 pmic I can register it as a consumer > and hence query what the pmic thinks it is supplying. > > Unfortunately this regulator is shared with a number of other chips and so > there is no guarantee that this voltage won't be changed (within the bounds > supported by the SHT15). I'd like to avoid querying the regulator voltage > every time I do a conversion. > > As the regulator framework already allows you to register to receive events > such as under voltage detections, it seems to me that it would also make sense > to allow registrations of handlers for events that occur during normal > operation such as voltage changes. > > What do people think to adding this functionality?
Sounds fine. I assume you have a patch in development ;)
Thanks
Liam
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