Asyn Serial Timouts

[Bill Nolan <bnolan@biochem.wustl.edu>]

Hi All,
   I have a question about how the asyn drivers deal with a read timeout,
I am working with a device under devAsyn over a serial line through 
asynOctet.
What I am seeing is that devAsyn is dropping or ignoring input on a read.

   I send a command to the device to start a long 10-120 sec) process, 
I recive back an ACK and then wait in a loop that calls asynOctet->read, 
and check the return for errors or a completion notice.
   This model works most of the time, but if the completion notice 
arrives durring a the asyn timeoutHandler, then the data is lost.

Is this an intended behavior for devAsyn ?
Would using a asynOctetSyncIO where I can block solve this ?
If so do I need to change my entire device support to use 
asynOctetSyncIO , or can I have both a Octet and a SyncIO interface to 
the same device with out interfering with each other?

Thanks for any help.
--Bill

--
Bill Nolan
Washington University Medical School
Department of Biochemistry
4566 Scott Ave.
Mail Stop 8231
St. Louis, Mo 63110
1.314.362.4445 Fax 1.314.362.7183