Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 17 Sep 2012 10:12:20 -0500

Hi Hinko,

On 2012-09-17 Hinko Kocevar wrote:
> 
> If I understand the use of aSub correctly, it does not need allow DTYP
> being set. Since I can't bind any device to it, I was hoping that INPx
> field(s) might be set to point to INST_IO based link type, something like :

Sorry, I didn't realize you were using the waveform for I/O as well; in that 
case you probably still need the waveform record.

> @param(PARAM1=abc PARAM2=123)
> 
> but that does not seem to work as expected. The problem I see when
> trying to get link value (this is from init() at IOC startup):
> 
> rec->inpa.value.instio.string ==>> '@param(PARAM1=abc'
> 
>   ONLY half of string.. where is the other half?

You can't do that.  The code must look at the inpa.type field before examining 
any of the union members such as inpa.value.instio; the parser does *not* look 
at the syntax of the string to work out what link type to store.  In this case 
you'll find that the link has been made a CA link (CA_LINK from link.h) which 
is why the string stops at the first space.

You'll have to read in the array from the waveform using an INP link, process 
it, then output it again using an OUT link.

Sorry for the misdirection, hope this helps.

- Andrew
-- 
Never interrupt your enemy when he is making a mistake.
-- Napoleon Bonaparte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System