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From: | Nicolas Cuervo |
Subject: | Re: [Discuss-gnuradio] "USB open failed: insufficient permissions" |
Date: | Wed, 6 Jun 2018 20:54:22 +0200 |
hi Ale,Is it your first attempt with gnuradio? Did you install uhd as root or as a normal user? Maybe you need to open gnuradio as root.El mié., 6 de jun. de 2018 1:28 PM, Mercado, Alejandra <address@hidden> escribió:______________________________Dear all,I am attempting to recreate the FM receiver in GnuRadio described in wiki:... duly replacing all WX with QT...It seems a simple enough example, as seen here:And I see no errors in making the Python code. But when I attempt to I get this error:Any suggestions?Executing: '/usr/bin/python2 -u /home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_ 2_FM_RX.py' linux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_003.009.007-0-g50839059UHD Error:USB open failed: insufficient permissions.See the application notes for your device.Traceback (most recent call last):File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_ 2_FM_RX.py", line 250, in <module> main()File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_ 2_FM_RX.py", line 238, in main tb = top_block_cls()File "/home/mercado/workarea-gnuradio/gnuradio/ENTS622/Lab_ 2_FM_RX.py", line 80, in __init__ channels=range(1),File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/__ init__.py", line 122, in constructor_interceptor return old_constructor(*args)File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/ uhd_swig.py", line 2671, in make return _uhd_swig.usrp_source_make(*args) RuntimeError: LookupError: KeyError: No devices found for ----->Empty Device Address>>> Done_________________
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