@tonygurney , please see the doc page regarding GPIO and the offset:
https://docs.modalai.com/voxl2-linux-user-guide/#gpios
specifically,
Starting SDK 1.2.X/System Image 1.7.3, GPIOs are exported by default in /sys/class/gpio, the GPIO have an offest of 1100 (e.g. GPIO 84 = 1184).