bad ffi signature as follows
Not enough info. Show us the C and mJS code, please.
let f = ffi(‘int my_func(int, int)’);
print('Calling C my_func: ', f(5,4));
in src
#include “mgos.h”
int my_func(int a, int b){
return a+b;
}
Did you build and flash after adding the call in init.js?
yes i did . i found the solution.
I added both file in mos.yml file.
in sources:
-fs
-src