Signal handling is broken on EPICS base R3.14.5 and lower. This will cause core dumps when a device times out and you're using readline.
The RPC library on Mac OSD 10.3.3 does not handle device timeouts properly and may cause core dumps. A bug report has been filed with Apple. A workaround is to use the GNU glibc RPC/XDR routines.
If a user callback calls a low level driver with an infinite or very long timeout, there is no way to make the call terminate. Is there a generic way to abort the call?
Does not support GPIB specific functions.
This needs to be implemented for asynDriver.
Think about creating generic support for connecting to EPICS records.
Consider generic support for various network protocals: Modbus, etherIP, etc.