Question: Does an API exist for implementing an ISR callback?

[guymcswain]

A quick search of lg APIs for 'isr', 'irq', 'interrupt' turned up empty. My purpose for asking is that if such an API (implementing ISR callback) did exist, I would like to 'graft' that code onto the pigpio library to replace the deprecated /sys/class/gpio implementation of gpioSetISRFunc().

For background see joan2937/pigpio#613

[Pereira-Lucas]

You could use lgGpioSetAlertsFunc

https://abyz.me.uk/lg/lgpio.html#lgGpioSetAlertsFunc

void myInterrupt(int num_alerts, lgGpioAlert_p alerts, void *userdata) {
    // Do something
}

void main() {
    lgGpioSetAlertsFunc(handle, buttonPin, myInterrupt, NULL);
    lgGpioClaimAlert(handle, LG_SET_PULL_DOWN, LG_FALLING_EDGE, buttonPin, -1);
}