Also, when I try to export a gpio in sysfs<br><br>echo 9 > /sys/class/gpio/export<br><br>It gives me an error in dmesg<br>gpio_request: gpio-9 (sysfs) status -22<br>export_store: status -22<br><br>Here is a look of sysfs on my machine<br>
<br># ls /sys/class/gpio/ -la<br>drwxr-xr-x 4 root root 0 Jan 1 00:00 .<br>drwxr-xr-x 24 root root 0 Jan 1 00:00 ..<br>--w------- 1 root root 4096 Jan 1 00:10 export<br>
drwxr-xr-x 3 root root 0 Jan 1 00:00 gpiochip192<br>drwxr-xr-x 3 root root 0 Jan 1 00:00 gpiochip224<br>--w------- 1 root root 4096 Jan 1 00:00 unexport<br><br><br>