rtl_test -t results in failed to open rtlsdr device #0.

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Marcus Müller marcus.mueller at ettus.com
Wed Apr 5 12:35:44 UTC 2017


Hi Joachim,

"I tried many [...] but it doesn't work": so, what exactly you've tried
would be kind of relevant :)

I'll go out on a limb here based on statistics and say: you might have
missed what
http://osmocom.org/projects/sdr/wiki/rtl-sdr#rtlsdr-library-amp-capture-tool
says:

sudo make install-udev-rules

Best regards,
Marcus

On 05.04.2017 07:30, pantos at pantokratoren.de wrote:
> Hello,
>
> a few days ago I tried to install rtl-sdr on my raspberry pi. I'm
> using a dvb-t usb stick with Realtek, RTL2838UHIDIR chipset. I build
> the software following the guide in the wiki. I used two additional
> switches: cmake ../ -DINSTALL_UDEV_RULES=ON -DDETACH_KERNEL_DRIVER=ON
>
> After installing the software I created a blacklist in cd /etc/modprobe.d:
>
> blacklist dvb_usb_rtl28xxu
> blacklist rtl2832
> blacklist rtl2830
> blacklist rtl2838
>
> After rebooting the device I tried to test rtl-sdr with rtl_test -t
> and got this result:
>
> Found 1 device(s):
> 0: Realtek, RTL2838UHIDIR, SN: 00000001
>
> Using device 0: Generic RTL2832U OEM
> usb_claim_interface error -6
> Failed to open rtlsdr device #0.
>
> I don't know how to fix this error. I tried many suggestions found via
> google but it doesn't work.
>
> Can someone help me to fix this?
>
> Thanks for your help!!
>
> Joachim
>




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