MPG Jog Wheel

I'm trying to get a basic 1 axis jog wheel to work as a proof of concept, but it's not working yet. Here is the little section of hal:

# --- MPG Jog X ---
setp axis.x.jog-vel-mode 0
setp axis.x.jog-scale .01
net x-jog-enable hm2_5i25.0.7i73.0.1.input-22-not => axis.x.jog-enable
net mpg-counts hm2_5i25.0.7i73.0.1.enc0.count => axis.x.jog-counts



The jog enable is just through a switch for testing purposes.

According to hal meters:
The switch output does not make it to axis.x.jog-enable.
The enc0.counts does not make it to axis.x.jog-counts.

The machine is homed before testing.

Any ideas what I can test?

some more infos woudt be good what version of liuxcnc are you using
what OS
did you try the halui version in a postgui file

Andy was right about the hal file. I was referencing the wrong file.

With the correct hal file, axis.x.jog-count does change with the encoder, but the axis still does not move. I am running version 2.8 on Mint 19 with the preempt kernel.

Here is a snippet from the hal:
####### MPG #######
# --- MPG Jog X ---
setp axis.x.jog-vel-mode 1
net x-jog-enable hm2_5i25.0.7i73.0.1.input-20-not => axis.x.jog-enable
setp axis.x.jog-scale .01
net mpg-counts hm2_5i25.0.7i73.0.1.enc0.count
net mpg-counts => axis.x.jog-counts

####### Rapid Override #######
net rapid-override-enable hm2_5i25.0.7i73.0.1.input-22-not => halui.rapid-override.count-enable
net mpg-counts => halui.rapid-override.counts

Using the mpg to change the rapid override works.

Here is another clue: jogging via a button works with halui.joint.0.plus, but not with halui.axis.x.plus.

I have not tried putting the jogging hal in the poustgui hal file. How do I determine what to put in the postgui file?

Update:
Jogging via a jog button works with halui.joint.0.plus while unhomed, but not while homed.

Jogging via a jog button works with halui.axis.x.plus while homed, but not while unhomed.

The mpg action is similar. It works with joint.0.jog-counts while unhomed, but not while homed. It works with axis.x.jog-counts while homed, but not while unhomed.

So the jogging works with joints unhomed, but not while homed. Is this normal, or do I still have a problem?

Prior to homing you will need to jog joints, not axis!
Check if the machine moves after homing using the mpg

Yes, the machine moves after homing using the mpg when I connect the mpg to axis.x.jog-counts.

Would it be advisable to connect the jog buttons to both axis and joint like the following example using the x axis, so they would work before and after homing?

net jog-x-pos => halui.joint.0.plus halui.axis.x.plus

If this is okay, the jogging should be good to go.

Advisable for trivkins kinematics for branches 2.8 and
after

Ref: linuxcnc.org/docs/2.8/html/getting-start...dating-linuxcnc.html

Halui jogging:
linuxcnc.org/docs/2.8/html/getting-start...linuxcnc.html#_halui
Wheel (MPG) jogging:
linuxcnc.org/docs/2.8/html/getting-start...se_generator_jogging

Thanks for the help