Experimental Physics and
Industrial Control System

Marty Kraimer <[email protected]> · Mon, 22 Nov 2004 14:32:19 -0600

asynDriver release 4-0 is now available. See
http://www.aps.anl.gov/epics/modules/soft/asyn/
The release notes start with the statement
APOLOGY: Many interfaces have changed since release 3-3. This is the
reason this release is called 4-0.

I would like to expand on this a little.
If you are using the gpib support (devGpib and low level drivers) you
should see almost no changes.
If you are using asynManager then, except for an extra argument to
report, all old method have exactly the same prototypes as before. You
will, however, see new features.
If you are using asynOctet then there are some changes.
If you are using the register based interfaces and devEpics, which were
introduced in release R3-3, then you will see major changes. Release 3-3
did come with a warning that the register based interfaces/devEpics was
likely to undergo rapid evolution. This happened. We feel that the new
interfaces/devEpics is more flexable, easier to implement, and easier
to understand.
With the addition of interrupt support asynDriver now has all the core
components we have planned.

Hopefully the interfaces will now undergo only minor rather than major
evolution.
Also see the Known Problems for things that we did not have time to
implement for this release.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System