Claude (homelab agent)andClaude Opus 5.5
56eb5af0ff
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
19 lines
1.1 KiB
Bash
Executable File
19 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# Restart the scanner when the HackRF stream is dead (USB re-enumeration / brownout leaves
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# rtl_airband looping on "readStream failed: TIMEOUT" forever).
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systemctl is-active -q sdr-scanner.service || exit 0
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# only judge a process that has been up for > 45 s (old errors stay in the journal window)
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start_us=$(systemctl show -p ExecMainStartTimestampMonotonic --value sdr-scanner.service)
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now_us=$(awk "{printf \"%d\", \$1*1000000}" /proc/uptime)
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[ $(( (now_us - start_us) / 1000000 )) -ge 45 ] || exit 0
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n=$(journalctl -u sdr-scanner.service --since "-40s" --no-pager -q 2>/dev/null | grep -c "readStream failed" || true)
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if [ "${n:-0}" -ge 10 ]; then
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# a restart alone does not wake a HackRF wedged by the hourly hackrf_sweep (2026-10-23: 9 h of TIMEOUT loops);
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# a USB reset of that one device does (no port power switching: the webcam shares the hub)
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echo "HackRF stream dead ($n errors in 40 s), USB reset of the HackRF and restart of sdr-scanner"
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systemctl stop sdr-scanner.service
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usbreset 1d50:6089 || echo "usbreset failed"
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sleep 2
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systemctl start sdr-scanner.service
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fi
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