e4089287a3
Root cause: systemd PrivateDevices=yes hid /dev/ttyUSB* from the service, preventing .198 from connecting to its Heltec V3 after the security hardening. Changes: - Set PrivateDevices=no in systemd service (serial access needs physical devices; other hardening layers remain: NoNewPrivileges, ProtectSystem, RestrictNamespaces) - Add SupplementaryGroups=dialout for explicit serial permissions - Add fallback auto-detect when configured serial path fails to open - Add exponential backoff on reconnect (5s→60s cap) to reduce log spam - Add pre-open device existence check with actionable error messages - Add udev rule (99-mesh-radio.rules) for stable /dev/mesh-radio symlink - Add /dev/mesh-radio to serial candidate list (checked first) - Add Connect button per detected device in Mesh UI - Deploy udev rule to both servers and ISO build - Fix FEDI_HASH unbound variable in deploy script - Fix deploy binary step to handle hung service stop gracefully Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
7 lines
562 B
Plaintext
7 lines
562 B
Plaintext
# Stable symlink for USB serial adapters used as mesh radios.
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# Creates /dev/mesh-radio pointing to the underlying ttyUSB device.
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# Supports: CP2102 (Heltec V3), CH340 (T-Beam), FTDI (RAK WisBlock).
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SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", SYMLINK+="mesh-radio", MODE="0660", GROUP="dialout"
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SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", SYMLINK+="mesh-radio", MODE="0660", GROUP="dialout"
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SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", SYMLINK+="mesh-radio", MODE="0660", GROUP="dialout"
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