https://www.kernel.org/doc/Documentation/gpio/sysfs.txt 
<https://www.kernel.org/doc/Documentation/gpio/sysfs.txt>

Regards,
John




> On Mar 11, 2016, at 2:54 AM, [email protected] wrote:
> 
> Hello, i am new at linux.. I use bbb with debian and usb remote desktop
> I try this command on terminal:
>  /sys/class/gpio/export
> 
> I always receive: -bash: /sys/class/gpio/export: Permission denied
> 
> I also have change the permisson on the gpio folder per GUI... but without 
> success??
> 
> ThankYou
> 
> 
> 
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