bugAVR Downloader/UploaDEr - Bugs: bug #53279, Permission denied accessing...

 
 

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bug #53279: Permission denied accessing /sys/class/gpio/gpioX/direction would leave pin exported

Submitter:  None
Submitted:  Sat 03 Mar 2018 10:10:16 PM UTC
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Michael Cain
Originator Email:  * -email is unavailable- Open/Closed:  Open
Release:  * 6.3 Programmer hardware:  linuxgpio
Device type:  RaspberryPi
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Sat 03 Mar 2018 10:10:16 PM UTC, original submission:  

When using a Raspberry Pi to program an atmega2560 using linuxgpio and you do not have the permission to access /sys/class/gpio/gpioX/direction it would leave the gpio pin exported.  The only way to unexport the pin would be to reboot the Rasbperry Pi.

The problem lies in the function linuxgpio_open, change line 280 from:
if (r < 0)
   return r;

TO:
if (r < 0) {
   linuxgpio_unexport(pin);
   return r;
}

Anonymous

 

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