I just updated EMC2 on the Sherline CNC mill from 2.4.6 to 2.4.7 (which mis-identifies itself as 2.4.6 on the splash screen) and the Axis UI failed to start. A bit of digging shows that the name of Button 1 (the left button in the right-hand quad, clearly labeled 1) has inexplicably changed from btn-trigger to btn-joystick.

Most likely the change has nothing to do with EMC2, because (I think) those names bubble up from the HID driver that actually talks to the hardware and that stuff has also been updated; this is all on Ubuntu 10.04 LTS. But in any event, the name is now different.
That requires a tweak to the Eagle schematics, which will regenerate Logitech_Gamepad.hal, but you can just edit the latter file and change btn-trigger to btn-joystick.
As nearly as I can tell, changing the pin name in the Logitech library component, saving the library, then updating the library in the schematic doesn’t do squat. Evidently, Eagle keeps track of which components you’ve used and won’t update them unless you do some manual gymnatistics, which makes a certain amount of sense.
That means one must:
- Delete both “gates” of the old component (INPUT.0.BUTTONS first, then INPUT.0)
- Make sure you’re on Page 2 where the basic gate will go
- Add the revised LOGITECH_DUAL_ACTION_GAMEPAD to get the INPUT.1 “gate”
- Rename it to INPUT.0
- Use Move to jiggle it around a bit to ensure its pins get hitched up to the existing nets
- Switch to Page 1 where the button nets lie in wait
- Type invoke input.0 into the Eagle command line
- Pick -BUTTONS from the list to select that “gate”
- Position that gate appropriately
- Use Move to jiggle the gate
- Save everything
- Run the Eagle2Hal ULP to get a new HAL output file
- Put that file where it’ll do the most good
There, now, wasn’t that obvious?
The modified Logitech_Gamepad.hal file:
# HAL config file automatically generated by Eagle-CAD ULP: # [/mnt/bulkdata/Project Files/eagle/ulp/hal-write-2.4.ulp] # (C) Martin Schoeneck.de 2008 # Mods Ed Nisley 2010 # Path [/mnt/bulkdata/Project Files/eagle/projects/EMC2 HAL Configuration/] # ProjectName [Logitech Gamepad - 2.4.7] # File name [/mnt/bulkdata/Project Files/eagle/projects/EMC2 HAL Configuration/Logitech Gamepad - 2.4.7.hal] # Created [10:40:31 11-Nov-2011] #################################################### # Load realtime and userspace modules loadrt constant count=16 loadrt and2 count=17 loadrt flipflop count=4 loadrt mux2 count=5 loadrt mux4 count=1 loadrt not count=8 loadrt or2 count=10 loadrt scale count=7 loadrt timedelay count=1 loadrt toggle count=1 loadrt wcomp count=6 #################################################### # Hook functions into threads addf toggle.0 servo-thread addf wcomp.1 servo-thread addf wcomp.2 servo-thread addf wcomp.3 servo-thread addf and2.0 servo-thread addf and2.4 servo-thread addf and2.3 servo-thread addf and2.2 servo-thread addf and2.1 servo-thread addf constant.6 servo-thread addf constant.5 servo-thread addf constant.4 servo-thread addf constant.3 servo-thread addf constant.2 servo-thread addf constant.1 servo-thread addf constant.0 servo-thread addf constant.7 servo-thread addf constant.8 servo-thread addf scale.1 servo-thread addf scale.2 servo-thread addf scale.3 servo-thread addf mux4.0 servo-thread addf mux2.0 servo-thread addf scale.4 servo-thread addf scale.0 servo-thread addf wcomp.5 servo-thread addf wcomp.4 servo-thread addf wcomp.0 servo-thread addf flipflop.1 servo-thread addf flipflop.0 servo-thread addf and2.5 servo-thread addf and2.6 servo-thread addf and2.7 servo-thread addf and2.8 servo-thread addf flipflop.2 servo-thread addf flipflop.3 servo-thread addf or2.4 servo-thread addf or2.8 servo-thread addf or2.7 servo-thread addf or2.6 servo-thread addf or2.5 servo-thread addf or2.3 servo-thread addf or2.2 servo-thread addf or2.1 servo-thread addf or2.0 servo-thread addf not.1 servo-thread addf not.2 servo-thread addf not.3 servo-thread addf not.4 servo-thread addf not.5 servo-thread addf not.6 servo-thread addf not.7 servo-thread addf not.0 servo-thread addf constant.9 servo-thread addf mux2.1 servo-thread addf mux2.2 servo-thread addf mux2.3 servo-thread addf mux2.4 servo-thread addf constant.10 servo-thread addf constant.11 servo-thread addf scale.5 servo-thread addf scale.6 servo-thread addf constant.12 servo-thread addf constant.13 servo-thread addf timedelay.0 servo-thread addf constant.14 servo-thread addf constant.15 servo-thread addf and2.16 servo-thread addf and2.15 servo-thread addf and2.14 servo-thread addf and2.13 servo-thread addf and2.12 servo-thread addf and2.11 servo-thread addf and2.10 servo-thread addf and2.9 servo-thread addf or2.9 servo-thread #################################################### # Set parameters #################################################### # Set constants setp constant.0.value +0.02 setp constant.1.value -0.02 setp constant.2.value 60 setp constant.3.value 1.00 setp constant.4.value 0.10 setp constant.5.value 0.50 setp constant.6.value 0.10 setp constant.7.value +0.5 setp constant.8.value -0.5 setp constant.9.value 0.0 setp constant.10.value [TRAJ]MAX_LINEAR_VELOCITY setp constant.11.value [TRAJ]MAX_ANGULAR_VELOCITY setp constant.12.value -1.0 setp constant.13.value 0.1 setp constant.14.value 0.020 setp constant.15.value 0.000 #################################################### # Connect Modules with nets net a-button-minus or2.2.in0 input.0.btn-joystick and2.15.in0 net a-button-plus or2.2.in1 input.0.btn-thumb2 and2.16.in0 net a-buttons-active or2.2.out or2.3.in0 or2.4.in1 net a-disable not.7.out and2.5.in1 net a-enable or2.4.in0 flipflop.3.out not.7.in mux2.4.sel net a-jog wcomp.2.in input.0.abs-z-position mux2.4.in1 net a-knob-active not.2.out and2.7.in1 net a-knob-inactive wcomp.2.out not.2.in and2.6.in1 net a-select and2.8.in0 and2.7.out net a-set flipflop.3.set and2.8.out net angular_motion or2.4.out mux2.0.sel net any-buttons-active mux4.0.sel0 or2.8.out net az-buttons-active or2.3.out or2.8.in1 or2.9.in0 net az-reset flipflop.2.reset and2.6.out flipflop.3.reset net button-crawl scale.4.out mux4.0.in3 net button-fast scale.2.out mux4.0.in1 scale.4.in net jog-crawl toggle.0.out mux4.0.sel1 net jog-speed halui.jog-speed mux4.0.out net knob-crawl mux4.0.in2 scale.3.out net knob-fast mux4.0.in0 scale.1.out scale.3.in net n_1 constant.10.out mux2.0.in0 net n_2 and2.0.in0 input.0.btn-top2 net n_3 and2.0.in1 input.0.btn-base net n_4 and2.0.out halui.abort net n_5 halui.mode.manual input.0.btn-base3 net n_6 wcomp.0.max wcomp.1.max wcomp.2.max wcomp.3.max constant.0.out net n_7 halui.program.resume input.0.btn-base4 net n_8 wcomp.0.min wcomp.1.min wcomp.2.min wcomp.3.min constant.1.out net n_9 mux2.0.in1 constant.11.out net n_10 constant.12.out scale.5.gain scale.6.gain net n_11 or2.0.in0 input.0.btn-base5 net n_12 or2.0.in1 input.0.btn-base6 net n_13 constant.9.out mux2.1.in0 mux2.2.in0 mux2.3.in0 mux2.4.in0 net n_14 mux2.1.out halui.jog.0.analog net n_15 toggle.0.in or2.0.out net n_16 constant.2.out scale.0.gain net n_17 constant.5.out scale.1.gain net n_18 constant.3.out scale.2.gain net n_19 constant.4.out scale.3.gain net n_20 scale.4.gain constant.6.out net n_21 halui.jog.1.analog mux2.2.out net n_22 mux2.2.in1 scale.5.out net n_23 scale.6.out mux2.3.in1 net n_24 constant.13.out halui.jog-deadband net n_25 wcomp.4.max constant.7.out wcomp.5.max net n_26 constant.8.out wcomp.4.min wcomp.5.min net n_27 mux2.3.out halui.jog.2.analog net n_28 halui.jog.3.analog mux2.4.out net n_29 timedelay.0.out and2.9.in1 and2.10.in1 and2.12.in1 and2.11.in1 and2.13.in1 and2.14.in1 and2.16.in1 and2.15.in1 net n_30 and2.9.out halui.jog.0.minus net n_31 or2.9.out timedelay.0.in net n_32 constant.14.out timedelay.0.on-delay net n_33 constant.15.out timedelay.0.off-delay net n_34 and2.10.out halui.jog.0.plus net n_35 and2.11.out halui.jog.1.minus net n_36 halui.jog.1.plus and2.12.out net n_37 and2.13.out halui.jog.2.minus net n_38 and2.14.out halui.jog.2.plus net n_39 and2.15.out halui.jog.3.minus net n_40 and2.16.out halui.jog.3.plus net vel-per-minute scale.0.out scale.1.in scale.2.in net vel-per-second mux2.0.out scale.0.in net x-buttons-active or2.7.in0 or2.5.out net x-disable not.4.out and2.4.in1 net x-enable not.4.in flipflop.0.out mux2.1.sel net x-hat-jog wcomp.4.in input.0.abs-hat0x-position net x-hat-minus wcomp.4.under or2.5.in1 and2.9.in0 net x-hat-plus or2.5.in0 wcomp.4.over and2.10.in0 net x-jog wcomp.0.in input.0.abs-x-position mux2.1.in1 net x-knob-active not.0.out and2.1.in0 net x-knob-inactive wcomp.0.out not.0.in and2.2.in0 and2.3.in0 net x-set and2.1.out flipflop.0.set net xy-buttons-active or2.7.out or2.8.in0 or2.9.in1 net xy-reset flipflop.0.reset and2.2.out flipflop.1.reset net y-buttons-active or2.6.out or2.7.in1 net y-disable not.5.out and2.1.in1 net y-enable flipflop.1.out not.5.in mux2.2.sel net y-hat-jog wcomp.5.in input.0.abs-hat0y-position net y-hat-minus wcomp.5.under or2.6.in1 and2.12.in0 net y-hat-plus or2.6.in0 wcomp.5.over and2.11.in0 net y-jog wcomp.1.in input.0.abs-y-position scale.5.in net y-knob-active not.1.out and2.3.in1 net y-knob-inactive not.1.in wcomp.1.out and2.2.in1 net y-select and2.4.in0 and2.3.out net y-set flipflop.1.set and2.4.out net z-button-minus or2.1.in0 input.0.btn-thumb and2.13.in0 net z-button-plus or2.1.in1 input.0.btn-top and2.14.in0 net z-buttons-active or2.1.out or2.3.in1 net z-disable not.6.out and2.8.in1 net z-enable not.6.in flipflop.2.out mux2.3.sel net z-jog wcomp.3.in input.0.abs-rz-position scale.6.in net z-knob-active not.3.out and2.5.in0 net z-knob-inactive not.3.in wcomp.3.out and2.7.in0 and2.6.in0 net z-set and2.5.out flipflop.2.set
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