Re: [Fwd: Re: stream without asynPort]

[Eric Norum <eric@norum.ca>]

I wrote a simply asynOctet driver to do this.  I've not yet packaged this up for official release until I hear back from the folks testing this.

I'm not 100% sure that it's a good idea to allow commands to be run as the result of record processing, but maybe there's a real need out there.

On Feb 21, 2011, at 1:03 AM, Dirk Zimoch wrote:

From: Dirk Zimoch <dirk.zimoch@psi.ch>

Date: February 21, 2011 1:02:31 AM PST

To: emmanuel_mayssat@lynceantech.com

Subject: Re: stream without asynPort

Hi Emmanual,

By design, a StreamDevice record needs to connect to a "bus". At the moment, I only support asynDriver as a bus system. For your application, you don't need it. Thus a "dummy" bus driver would do. I already have a "debug" bus driver that simply prints what function is called. From this is should be easy to write a "dummy" driver. I will try.

Dirk



emmanuel_mayssat@lynceantech.com wrote:

Hello,

I am tryign to use a feature I have seen in stream protocols.

I would like to call iocsh function from a process variable.

ex: when a bo record is set to 1, I would like to execute 'dbl' in the iocsh.

Q: is it possible to use stream without instanciating a asynPort ?

Q: is there another SIMPLE way to do this other than with stream ?

Q: apropos is it possible in stream to pass the value of the PV in exec lines?

  ex: exec "dbpr mbboPV <valueOfMbboPV>" ;

Thanks,

-- 
Eric Norum
eric@norum.ca