Need Help - Unable to open RTL-SDR

SatNOGS Software
1

I can schedule observations, and produce a small data file (but no waterfall). Status comes out Failed. I can connect using rtl_tcp and everything looks ok. I’m using an rtl-sdr.

I think this is the problem related to SoapySDRUtil-“Error probing device: Unable to open RTL-SDR device” If you agree, please tell me how to fix it. I already did an upgrade/apply reboot.

pi@raspberrypi:~ $ SoapySDRUtil --find
######################################################

Soapy SDR – the SDR abstraction library

######################################################

[INFO] [UHD] linux; GNU C++ version 8.3.0; Boost_106700; UHD_3.15.0.0-4satnogs1

RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (default), No such file or directory.

usb_claim_interface error -6
Found device 0
driver = rtlsdr
label = Generic RTL2832U OEM :: 00000001
manufacturer = Realtek
product = RTL2838UHIDIR
serial = 00000001
tuner = unavailable

pi@raspberrypi:~ $ SoapySDRUtil --probe=“driver-rtlsdr”
######################################################

Soapy SDR – the SDR abstraction library

######################################################

Probe device driver-rtlsdr
[INFO] [UHD] linux; GNU C++ version 8.3.0; Boost_106700; UHD_3.15.0.0-4satnogs1

RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (default), No such file or directory.

usb_claim_interface error -6
[INFO] Opening Generic RTL2832U OEM :: 00000001…
usb_claim_interface error -6
Error probing device: Unable to open RTL-SDR device

2

I still have the same problem, but I found that the soapyremote-server was not running. I started it and got a similar message:
pi@raspberrypi:~ $ SoapySDRUtil --probe=“driver=rtlsdr,serial=00000001”
######################################################

Soapy SDR – the SDR abstraction library

######################################################

Probe device driver=rtlsdr,serial=00000001
usb_claim_interface error -6
[INFO] Opening Generic RTL2832U OEM :: 00000001…
usb_claim_interface error -6
Error probing device: Unable to open RTL-SDR device

3

This usually means the rtlsdr is locked by another process.

4

Good day,

I see a couple of issues you experience with your setup, can you please share more details on your setup. The more details the better.