Re: [PATCH] iio: pressure: bmp280: add support for BMP180

[Vlad Dogaru <vlad.dogaru@intel.com>]

On Sat, Apr 09, 2016 at 03:53:39AM +0900, Akinobu Mita wrote:
> 2016-04-08 19:43 GMT+09:00 Vlad Dogaru <vlad.dogaru@intel.com>:
> > On Fri, Apr 08, 2016 at 12:57:01AM +0900, Akinobu Mita wrote:
> [...]
> >> +static int bmp180_chip_init(struct bmp280_data *data)
> >> +{
> >> +     return 0;
> >> +}
> >
> > When setting the oversampling ratio, we do a lookup in the available
> > values array, then call ops->init to write the values to the register.
> > This function does nothing in the bmp180 case.  Or am I missing
> > something?
> 
> Your understanding is correct.  There is nothing to do for bmp180 when
> the oversampling setting is changed by the user.  When the actual
> measurement is requested, the measurement conversion is started by
> writing ctrl_meas register with the oversampling setting and start
> conversion bit.

Ah, I see.  That makes sense, thanks for the explanation.

Vlad