Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Mon, 19 Mar 2018 22:11:21 +0000

Hi Konrad,

I can't think of a way for the driver to know the value of DTYP.  Of course you specify both the drvUser string and the datatype when you call createParam() so your driver knows the datatype that a particular drvUser string will be using.  Why do you need to know the DTYP?

Mark

> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf
> Of Konrad, Martin
> Sent: Monday, March 19, 2018 8:39 AM
> To: EPICS Tech Talk <[email protected]>
> Subject: Asyn getting DTYP field in drvUserCreate()
> 
> Hi,
> I'm wondering if there is a way I can get access to the DTYP field of
> the record from asynPortDriver's drvUserCreate method.
> 
> Once createParam() has been called in drvUserCreate() I can get the type
> by calling getParamType() but how do I get access to this information in
> drvUserCreate()?
> 
> It seems like other drivers are duplicating this information into the
> INP/OUT field (see e.g. [1]). I'm wondering if there is a more elegant
> way to do this.
> 
> Thanks a lot,
> 
> Martin
> 
> [1]
> http://controls.diamond.ac.uk/downloads/support/aravisGigE/0-3-
> 5dls5/documentation/doxygen/aravisCamera_8cpp_source.html#l00326
> 
> --
> Martin Konrad
> High Performance Controls Team Leader
> Facility for Rare Isotope Beams
> Michigan State University
> 640 South Shaw Lane
> East Lansing, MI 48824-1321, USA
> Tel. 517-908-7253
> Email: [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System