Hello Armbian forum, I need to have a GPIO interrupt on Orange PI5. I have successfully installed WiringOP and I am using it with C code. The problem is that the interrupt is not working, and I am receiving the following error. How can I proceed? Does anyone know how to enable the WiringOP interrupt on the GPIO PIN?

 

Code C :

#define AUX 13

wiringPiISR(AUX, INT_EDGE_FALLING, &MyFunction);

 

Error:

wiringPiISR: unable to open /sys/class/gpio/gpio92/value: No such file or directory

 

PS. I have just successfully installed this version: Armbian 23.02 Jammy Gnome

Edited May 28, 20233 yr by elsabz

I don't have experiences with wiringpi in c code, but did you look at the examples and do you use the "next" branch for the library?

https://github.com/orangepi-xunlong/wiringOP/tree/next/examples

Hi @royk thanks for the answer, I had already looked in the library but I can't find anything different from the code I use, if you look at the isr.c example the call is the same as the one I use, except for the number of PINs that goes from 0 to 7, I tried to put PIN 0 but nothing changes, always the same error.

Hi @royk i check with the next branch is the same problem... 

@elsabz You could try to run first:

"gpio export 92 out"

@royk With the command you suggested, when I run the code it no longer gives an error, but sadly the interrupt doesn't work!

Is it possible that the orange PI 5 interrupt is not implemented at the hardware level?

@elsabz After setting "gpio export 46 in"  and "gpio export 54 in" I can see it counts interrupts when I connect it to ground.

test.c

@royk Unfortunately it doesn't work for me, but I have to do a test by grounding the input, I'm doing it this weekend, thanks