ASYN R4-12

[Eric Norum <norume@aps.anl.gov>]

We are preparing for a release of ASYN.    Although the changes are  
few, they are important.  In R4-11 operations that do not use the  
XXXSyncIO functions fail before iocInit.  This means, for example,  
that calls to asynSetOption() to set serial port parameters fail if  
done before iocInit().  R4-12 fixes this problem by decoupling  
autoconnect operations from iocInit().   As well, the asynSerialPort  
driver now remembers option settings and applies them when the port  
connects.
We're looking for courageous folks to try the current CVS snapshot and  
let us know of any problems
		http://www.aps.anl.gov/epics/download/modules/asyn_cvs.tar.gz

=========== Release Notes =============
asynManager: The autoconnect code is now decoupled from EPICS iocInit.

drvAsynSerialPort: Requests to set end-of-string values or serial port  
parameters are accepted even when the port is not connected. The  
request takes effect when the port is connected. This makes IOC  
startup more robust in the face of USB/serial adapters that may be  
unavailable on startup.
asynInt32Average, asynFloat64Average: If record is processed before  
new data have arrived (numAverage==0) set record to UDF/INVALID, set  
UDF to TRUE and leave value unchanged.


--
Eric Norum <norume@aps.anl.gov>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793