Help Needed: Cracking the Code on LinuxCNC Servo Homing Setup!

sets joint.0.custom-homing-is-requested true

You are using the wrong hal command (sets) here as that is for setting a signal.
Use 'setp' instead:

Ok, I changed to setp, but the pin is not writebale.

M5_EtherCAT.hal:33: pin 'joint.0.custom-homing-is-requested' is not writable

[edit]
We are trying to set the wrong pin
I'm sorry the line should be:

Yepp, I did not see either.

But here is the next error:
HAL: ERROR: signal 'x-home-request' already has output pin

Besides this line: do you have another line with 'x-home-request' in your hal?
 

Ok, it seems that 'cia402.0.home' is of type 'IO' not 'IN' so I changed the custom homing comp to make 'joint.0.custom-homing-is-requested' have type 'IO'. Not sure if this works but give it a go:
 

Don't forget to halcompile --install the new comp.