I think your issue is due to interrupts not being configured for the GPIO pin you are trying to monitor.
See this thread:
https://hub.libre.computer/t/interrupt-capable-pins-on-aml-s905x-cc/67
I think your issue is due to interrupts not being configured for the GPIO pin you are trying to monitor.
See this thread:
https://hub.libre.computer/t/interrupt-capable-pins-on-aml-s905x-cc/67