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* Only for C-program example it also needed:
** Add shortcircuit cable between J990:20 and J990:22 pins. By default, GPIO 156 (J990:20) and GPIO 157 (J990:22) are available on these J990 pins.
Another boards tested:
*IGEP COM MODULE
*IGEP COM AQUILA
== How to chek an GPIO ==
The gpio-int-test.c program shows one way of using the sysfs file /sys/class/gpio/gpioXX/value to block program execution using poll() until the input level on GPIOXX changes.
[[File:GPIO_TEST.tar]]
== Bash commandline ==
At first remote terminal you should read a message similar like this:
<pre>poll() GPIO 157 interrupt occurred </pre>
