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<== Date ==> <== Thread ==>
Subject: Re: Proposed change in asyn interruptCallback APIs
From: Andrew Johnson <[email protected]>
To: Mark Rivers <[email protected]>
Cc: Eric Norum <[email protected]>, tech-talk tech-talk <[email protected]>
Date: Thu, 29 Mar 2007 14:00:50 -0500
Mark Rivers wrote: 

I have found a problem in the APIs used by device support to receive
callbacks from asynDrivers.  These are the callbacks that an asyn driver
supports via pasynManager->registerInterruptSource, and device support
accesses via, for example, pasynInt32->registerInterruptUser.  These
callbacks allow EPICS records to have "I/O Intr" record processing, i.e.
the record only gets processed when the driver calls back device support
with "new" data.

Assuming that the only changes you'd be making to the asyn API would be to the routines mentioned, i.e. pasynManager->registerInterruptSource() and to methods for specific ASYN message types such as asynInt32 (but not to asynOctet) then this should not affect my directNetAsyn layer at all.

If you make any non-trivial changes to asynOctet I'm sure mine would not be the only code affected, but from your description it doesn't appear that this will be necessary.

- Andrew
--
The right to be heard does not automatically include
the right to be taken seriously. -- Hubert H. Humphrey
References:
Proposed change in asyn interruptCallback APIs Mark Rivers
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