> I’m beginner of Midas, and trying to develop the slow control front-end with the latest Midas.
> I found the scfe.cxx in the “example”, but not enough to refer to write the front-end for my own devices 
> because it contains only nulldevice and null bus driver case...
> (I could have succeeded to run the HV front-end for ISEG MPod, because there is the device driver...)
> 
> Can I get some frontend examples such as simple TCP/IP and/or RS232 devices?
> Hopefully, I would like to have examples of frontend and device driver.
> (if any device driver which is included in the package is similar, please tell me.)

Have you checked the documentation?

https://midas.triumf.ca/MidasWiki/index.php/Slow_Control_System

Basically you have to replace the nulldevice driver with a "real" driver. You find all existing drivers under 
midas/drivers/device. If your favourite is not there, you have to write it. Use one which is close to the one 
you need and modify it.

Best,
Stefan