如何为EtherCAT主站实现字符设备的用户空间实现？

Question

I am working on a personal project and want to try to come up with an implementation of the character device in the userspace instead of the kernelspace. I am using this github project https://github.com/ningfei/ethercat . I know it is something which is really exhaustive as I would need to replace all the linux kernel system calls by a mock representation. Can someone give me an idea on how to do so?

The image below shows the ethercat architecture. Ethercat architecture

Answer 1

So with other words you want all parts of EtherLAB master run in userspace, then try http://fh-soft.de/src/ethercat-userspace.html .

Bear in mind that a pure userspace version of EtherLAB master means higher latency and lower cycle frequency.