Re: Some questions about callbacks...

On Wed, 30 Apr 2003, David Schleef wrote:

[...]
> > Finally, the INTTRIG instruction carries a third numerical argument;
> > what is the meaning of it? Encoding of driver-specific trigger
> > identification?
> 
> It is for future use.  It should be set to 0 by the application,
> and the driver should return -EINVAL if it is not 0.
> 
Okay. We planned to use it to make a distinction between different
INTTRIG instructions to the same channel; more in particular, to start
and stop a continuous pulse generator output (for the NI660x driver we are writing). So, a kind of software enable, say.
Is this the kind of meaning you have in mind for future use? If not,
we will have to issue a new command for each enabling :-(

Herman

-- 
  K.U.Leuven, Mechanical Engineering, Robotics Research Group
<http://people.mech.kuleuven.ac.be/~bruyninc> Tel: +32 16 322480

Received on 2003-04-30Z18:39:43