asyn: what if a driver wants to force callbacks?

["Ford, Christopher" <caf@slac.stanford.edu>]

Hi,

In 2015 there was some discussion on Tech-Talk about how to force a callback for a parameter that had not changed values.
Mark Rivers suggested a work-around, as shown below.
I wonder if anyone has an update on the situation since then?  Has any other method appeared?  Or did you have success with the work-around?

Thanks,
 -Chris Ford, SLAC

On16 Nov 2015 Mark Rivers writes:
> If a driver wants to force a callback there is a method that does not require any changes to the base classes, e.g. exposing statusChanged_ as protected or adding a new
> isMotorRecordnowFilterButAlwaysProcess_ flag.  The driver simply needs to set a parameter to a different value from present and then back to its current value, for example
>  setDoubleParam(pC_->motorPosition_(position+1.);
>  setDoubleParam(pC_->motorPosition_(position);
>  callParamCallbacks();