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Help

This files lists help for common problems found

"Permission denied (os error 13)" (Linux ONLY)

Issue Description

This error is due to the user/application not having permissions to write to the USB device folders and files under /dev/bus/usb/.

In order for piggui to discover and control a USB connected porky device the user running it needs to write to a connected USB device, via these files and folders.

This is controlled by the Linux udev system. The file 70.pigg.rules gives these permissions to the user and is part of the project and shipped as part of releases.

Fixing the Issue:

To install the udev rules manually:

  • Download the 70.pigg.rules file from:
  • Run this command from the command line in a terminal window from the folder where you downloaded the file:
    • sudo cp 70.pigg.rules /etc/udev/rules.d/

If you have cloned the project repository, you can run this command from the command line in a terminal window, in the root folder of the project:

  • make usb (requites root permissions and will ask for your root password)

NOTE: For these rules to take effect you will need to restart your computer.