Pricing
00
In productionbeginnerDevice identity

The drive moves to another device path

Keep the drive interface stable when another USB serial adapter is connected first.

Pairs with Linux devices and electrical evidence in Hardware Integration & CANopen. Read the concept first, then diagnose it here.

Open repair workspace

Operator report

The drive works as `/dev/ttyUSB0` until reboot, then the sensor receives that name.

Ubuntu 24.04, ROS 2 Jazzy, SocketCAN vcan, CANopen drive simulator, ros2_control

01

System boundary

Trace only the relevant path.

3 nodes
  1. 01USB descriptors→
  2. 02udev rule→
  3. 03drive device pathOUT
02

How this lab works

You diagnose it. No command list.

Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you - finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.

03

Verification

Pass more than the visible symptom.

4 checks
  • Stable symlink resolves
  • Reconnect order does not change target
  • Hidden regression behavior
  • Root cause explanation