Notes from installation of ethercat on Raspberry Pi 4

The video looks great! Can you let me know please what components you use in set-up: motors, drivers, motion cards, etc. I have servo motors with Ethercat. Can you recommend a motion card that may work?
Thank you!

Sorry, newbie, but there is one question from the experience of forum members, because time has passed, and experience is power.
Is the Raspberry Pi4 network controller with Ethercat stable?
If so, on which versions of Linuxcnc and on which Linux kernel?
Thank you all for your responses and feedback.

I think it's supposed to be stable; the Etherlab folks have a specific driver for it, but I don't have any specific details on using it handy.

Hi, sorry for asking too many questions. In the linuxcnc downloads web page,there is this note";“linuxcnc-uspace” will also run on a standard Linux kernel for use as a simulator, but it should not be used to control hardware."
Does it mean that in order to actually run a machine, I have to use the “linuxcnc” with specific RTAI kernel?
Please let me know which package I have to download! Thank You! 

Hi Hakan,
I am using Raspberry pi5. I build Linuxcnc from source code .now i started installing ethercat from source code following your notes but now i am facing some issues in etherlab master build ($make dkms_build) in this line.
i also attached output log. is there any other way for RP5 ..?    

3 years is a long time in this space.
I would try installing the Raspberry pi 5 image on the downloads page and then follow these instructions
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step

The ethercat repositories should be installed for you already so hopefully, you will find there is no need to build from source if iGh supports the pi5 now.