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Sep 28, 2024
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Explain libusb requirement in README #77

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516448a
Document USB issues in README.md
jgoerzen Aug 8, 2024
9a251e2
Mention the actual error when libusb is missing
maresb Sep 28, 2024
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13 changes: 13 additions & 0 deletions README.md
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Expand Up @@ -73,6 +73,19 @@ or on Arch with
sudo pacman -S python-pipx
```

In case the USB development libraries are not already installed, you may see an
error like

```python
DeviceManagerError: Failed scanning devices: No backend available
```

To fix this, on Ubuntu/Debian, install with

```bash
sudo apt-get --no-install-recommends install libusb-1.0-0
```

By default, users don't have permission to access generic USB devices, so you will
need to add a rule. The first time you run `labelle`, it will give instructions
about how to do this:
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