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feat: Auto-detect serial port from /dev/serial/by-id/

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When MC_SERIAL_PORT=auto, bridge scans /dev/serial/by-id/ and:
- Uses the device if exactly one found
- Fails with helpful message if multiple devices (list provided)
- Fails if no devices found

docker-compose.yml now uses device_cgroup_rules instead of explicit
device mapping, allowing auto-detection inside the container.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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MarekWo
2026-01-15 15:18:07 +01:00
parent b8a77285ab
commit b2496b17b0
4 changed files with 79 additions and 11 deletions
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8
README.md
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@@ -68,11 +68,15 @@ For detailed feature documentation, see the [User Guide](docs/user-guide.md).
```
**Required changes in .env:**
- `MC_SERIAL_PORT=/dev/serial/by-id/<your-device-id>`
- `MC_SERIAL_PORT=auto` (recommended) or `/dev/serial/by-id/<your-device-id>`
- `MC_DEVICE_NAME=auto` (recommended) or your device name
- `TZ=Europe/Warsaw` (optional, set your timezone)
**Note:** With `MC_DEVICE_NAME=auto`, the system automatically detects your device name from meshcli. This is the recommended setting as it ensures the `.msgs` file always matches your actual device name.
**Note:** With `auto` settings, the system automatically detects:
- **Serial port** from `/dev/serial/by-id/` (works if only one USB device connected)
- **Device name** from meshcli prompt (ensures `.msgs` file matches actual device)
If you have multiple USB serial devices, run `ls /dev/serial/by-id/` and specify `MC_SERIAL_PORT` explicitly.
**Leave these as default:**
```bash