![]() When you run a process that wants to read or write to a USB device, the user/group of the process must have appropriate permission to do so. How can I change its default permission mode permanently on Linux? Looks like gpsd does not have permission to access the USB device ( /dev/ttyUSB0). Gpsd: gpsd:ERROR: device open failed: Permission denied - retrying read-only Gpsd: gpsd:ERROR: /dev/ttyUSB0: device activation failed. Gpsd: gpsd:ERROR: read-only device open failed: Permission denied ![]() However, I am getting the following errors from gpsd. Question: I am trying to run gpsd on my Linux with a USB GPS receiver.
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