USB error message

[Bert Thuiswerkplek]

Good Day,

This morning I received this error twice out of the blue, but I can not find what it means, nor what caused this message.
It did not reappear after the second time.

Is this a serious error, or did auto_rx loose its connection to the device?

2026-01-26 08:26:35 UTC – INFO
Telemetry Logger - Opening new log file: /home/rpi/radiosonde_auto_rx/auto_rx/log/20260126-082635_V3331056_RS41_405100_sonde.log
2026-01-26 08:23:41 UTC – INFO
Decoder (RTLSDR 0) RS41 405.100 - Starting decoder subprocess.
2026-01-26 08:23:40 UTC – INFO
Decoder (RTLSDR 0) RS41 405.100 - Using fsk_demod decoder chain.
2026-01-26 08:23:33 UTC – INFO
RTLSDR - Attempting to reset: Bus: 1 Device: 3
2026-01-26 08:23:33 UTC – WARNING
rtl_sdr test call resulted in return code of 124.
2026-01-26 08:23:27 UTC – INFO
Task Manager - SDR #0 has been allocated to Decoder (RS41, 405.100 MHz).

73's,
Bert PE1KZU

[Mark Jessop]

Some RTLSDR devices have a habit of locking up after time. Whether it's caused by power, heat, USB bus issues, it's difficult to really be sure.

Anyway, if one does lock up, auto_rx will try and issue a USB reset, which often will kick them back into life again. That's what's happening here.

The log entries being reversed makes it a little bit confusing, but what's happening here is the decoder thread gets started, the test of the SDR fails, a reset is issued, and then everything is able to start up.

73

Mark VK5QI

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[Bert Thuiswerkplek]

Thanks!
This eases my worries.

73,
Bert PE1KZU