ao record does not support SIMM=RAW

[Ralph Lange]

The ai record supports SIMM=RAW, where it fetches the value from SIOL/SVAL into RVAL and converts.

The ao record does not support this when writing through SIOL.

[Andrew Johnson (anj)]

No users have been asking for this, probably applies to all output record types.

[Evan Daykin (daykinev)]

@Ralph, what is your desired behavior here? Am I on the right track with the following:

-Change SIMM to menuSimm from menuYesNo. What is the usual practice for backwards database compatibility here?

case menuSimmYES:
case menuSimmRAW:
{
  ...
  if (prec->simm == menuSimmYES){
    //putLink SIOL directly to OVAL (no conversion)
  }
  else //
  {
    //put (long)floor(SIOL) to RVAL (convert)
  }
}

[Evan Daykin (daykinev)]

PR opened (finally)

https://github.com/epics-base/epics-base/pull/144