Most of the standard LayGO test programs are interactive, console mode programs. However, programs running in the RTX subsystem do not have access to stdin. So the dlaygo test program has been modified to simply run a loopback test and print the results. To run dlaygo, use rtssrun:
rtssrun dlaygo.rtss
dlaygo.rtss is located in the bin directory of the LayGO for RTX distribution.