# How to add RTL\_SDR into 3.7.8 gnuradio library?

**URL:** <https://www.ruby-forum.com/t/how-to-add-rtl-sdr-into-3-7-8-gnuradio-library/241947>\
**Category:** GNU Radio\
**Created:** [May 14, 2015, 7:05pm UTC](https://www.ruby-forum.com/t/how-to-add-rtl-sdr-into-3-7-8-gnuradio-library/241947 "2015-05-14T19:05:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [May 14, 2015, 7:05pm UTC](https://www.ruby-forum.com/t/how-to-add-rtl-sdr-into-3-7-8-gnuradio-library/241947/1 "2015-05-14T19:05:06Z")

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Hello all

I installed the latest version 3.7.8 of gnuradio from source. But the  
repository removed rtl\_sdr folder from the source files. I google a way  
to  
add rtl-sdr to the library. but it did not work for me.  
I followed the official osmocom website.

> **[Rtl-sdr - rtl-sdr - Open Source Mobile Communications](https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr)**
>
> Redmine

I install the RTL-SDR folder inside of my gnuradio file. then follow the  
steps below  
cd rtl-sdr/  
mkdir build  
cd build  
cmake …/  
make  
sudo make install  
sudo ldconfig

I know probably there is some link I have to create between this folder  
and  
gnuradio software. Is there anyone know how to add rtl-sdr to library?  
if  
you know, please tell me the exact steps I have to do. I really  
appreciate  
any help from you!

Cheers!

Shaun

–  
View this message in context:  
[http://gnuradio.4.n7.nabble.com/How-to-add-RTL-SDR-into-3-7-8-gnuradio-library-tp53711.html](http://gnuradio.4.n7.nabble.com/How-to-add-RTL-SDR-into-3-7-8-gnuradio-library-tp53711.html)  
Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com).

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**Author:** ![shaunwang](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/5e9695/32.png) [@shaunwang](https://www.ruby-forum.com/u/shaunwang)\
**Post date:** [May 15, 2015, 10:40am UTC](https://www.ruby-forum.com/t/how-to-add-rtl-sdr-into-3-7-8-gnuradio-library/241947/2 "2015-05-15T10:40:24Z")

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Hi Shaunwag,

rtl-sdr doesn’t belong inside your GNU radio source tree, and it never  
did. Both things are unrelated.  
Compile rtl-sdr anywhere you’ve downloaded it, “make install” it;  
install GNU Radio.  
After both, build the gr-osmosdr module, and you will get GNU Radio  
blocks that allow you to access the rtl-sdr devices; that’s probably the  
“glue” you were looking for.

Best regards,  
Marcus