david
8cd796e3dd
- USB gadget (UAC1 + MIDI) with boot persistence - USB host mode with auto-detection - Pure Data synth patch with ALSA + UDP netreceive MIDI input - MIDI rawmidi-to-UDP bridge (midi-bridge.py) - LED matrix visualization (led-matrix-viz.py via arduino-router RPC) - MCU sketch for LED matrix control (Arduino_RouterBridge + ArduinoGraphics) - Conftest/OPA Rego policy validation suite for .pd files - gen_synth_pd.py: programmatic .pd file generator - System services: midi-bridge, led-matrix-viz, pd-synth-auto, usb-role-detect - Justfile with deploy, enable, diagnostic recipes - Diagnostic script (diag.sh)
27 lines
716 B
Bash
Executable File
27 lines
716 B
Bash
Executable File
#!/bin/bash
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# on-usb-role-change.sh — Called by udev on USB role/connect events.
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# Re-detects role, stops/restarts Pd with appropriate config.
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set -euo pipefail
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ROLE_FILE="/run/usb-role"
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LOG_TAG="[USB-HOTPLUG]"
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# Debounce: skip if we just ran (within 3s)
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LOCK="/tmp/usb-role-change.lock"
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if [ -f "$LOCK" ]; then
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age=$(($(date +%s) - $(stat -c %Y "$LOCK" 2>/dev/null || echo 0)))
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[ "$age" -lt 3 ] && exit 0
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fi
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touch "$LOCK"
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logger -t "$LOG_TAG" "USB role change event — re-detecting..."
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/usr/local/bin/detect-usb-role.sh
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# Restart Pd if it's running
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if systemctl is-active pd-synth-auto &>/dev/null; then
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logger -t "$LOG_TAG" "Restarting Pd with new role"
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systemctl restart pd-synth-auto
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fi
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