• Cannot Access Serial Port Ubuntu

Spark serial monitor 1 Opening serial monitor for com port: '/dev/ttyACM0' Serial err: Error: Cannot open /dev/ttyACM0 Serial problems, please. Now whenever you plug in your Spark Core, the chmod command will be run, giving you full access to your spark core, making it so you never have to type in. One thing that might be good to check is to see if Tera Term or Putty are setting different serial port settings which cause the device to function. After uninstalling the previous 'Bash on Ubuntu on Windows' system, and installing Ubuntu WSL through the Windows Store I can confirm this issue has been. Jan 20, 2014  I need to run a terminal session (term) from within the guest OS, Ubuntu 12.04.3 LTS to a serial port on the Windows 8.1P host. In my case a USB to serial adapter that Windows has mapped to COM5. I don't really know where to start. In HyperV, under Settings, I see a Com1 and Com2 under hardware. There are no serial ports in Hyper-V. COM ports are.

Trying to debug I need to use serial out to a Ubuntu Terminal. But I get connection error. Using the CLI: gives me $ spark serial list Found 1 core(s) connected via serial: 1: /dev/ttyACM0 So the core is visible. But then: $ spark serial monitor 1 Opening serial monitor for com port: '/dev/ttyACM0' Serial err: Error: Cannot open /dev/ttyACM0 Serial problems, please reconnect the core. I assume that reconnect means unplug then replug, which also removes power in my case. I am a member of the dialout group: sudo usermod -a -G dialout xxxxx.

Nrobinson2000, thank you for the recommendation. Seems like something that should be included in the spark documentation somewhere. Still do not understand though why this is needed. I don't need similar to access usb drives, arduino's or multiple other devices.

In response to aceperry I read that it is not a good thing to run processes using superuser authority as this can leave my linux kernel open to attack. The general advice I see is that Superuser should be limited to maintenance activities where kernel changes are needed.

Cannot Access Serial Port Ubuntu

A lot of other packages come with rpm install scripts that will do things like add udev rules to change the permissions on USB devices they want to talk to. What you hear is correct, as a rule you want to avoid running packages under sudo, because it will result in painful things like files/directories created in your $HOME that you cannot access, overwrite or delete. The correct fix is adding and maintaining udev rules for the spark VID/PIDs, and automatically installing them as part of the install process.

If this is supposed to happen already then it is broken, if not then it should be made to happen.