Rob;

Well.  All this talk of the Ondes Martinot and chainsaws have made me reconsider the performance art potential for the Catz / Gametrak controller.   When I plug it in, the OS X USB device manager knows its name, but (not surprisingly) chuck --probe doesn't show it.  Can anyone offer pointers on what I have to write to make it recognized as an HID device under OS X?  

Great!

"chuck --probe" never shows Hid devices so that's business as usual. If your OS recognises it as a joystick then it should be available to ChucK without further trouble. Have a look at /examples/hid/joy.ck ; you maybe have to edit the device number if you have more than one joystick device but that should get you going.

You may need to change that internal setting of the device that was hinted at before to make it properly compatible but that's a hardware issue and you'll have to ask Dan.

Kas.