4 ms·

How to access GPIO interrupts: https://roboticsbackend.com/raspberry-pi-gpio-interrupts-tutorial/ https://roboticsbackend.com/raspberry-pi-gpio-interrupts-tut.

• bdemirkir 2y ago
  That's not an interrupt but an event sent from kernel's gpio subsystem. It may skip some events and there's not much guarantee on the delay between the interrupt itself and event userspace gets.