How to specify custom transformer and layerfuser for newly added EP?

[alter-xp]

Hi everyone!

I am working on adding a new EP for RISCV. However, a problem has confused me. When I add the relu operator, it works well. But when I add conv2d as I did with relu, it will not work as I expected. It always uses transformer to convert layout to nchwc and uses the implementation in nchwc_ops.cc.
My question is how to specify and control custom transformer for the newly added EP. Additionally, how can I control the layerfuser？

Looking forward to your reply.

[alter-xp]

I know the reason... I mistakenly registered Conv as Conv2d............