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[Discuss-gnuradio] using USRP as non-root user

From: Anastasopoulos Achilleas
Subject: [Discuss-gnuradio] using USRP as non-root user
Date: Sat, 23 Apr 2005 18:31:42 -0400 (EDT)

Everything works fine with gnuradio and USRP when
I use it a s root.

When I tried to use it as a regular user,
when I run
./tvrx_wfm_rcv_gui.py 93.1
I get error messages that look  like
the obes below.

Is there a problem with permissions, etc that can be easily fixed?



usrp_open_interface: usb_claim_interface: failed conf 0
could not set config 1: Operation not permitted
open_nth_cmd_interface: open_cmd_interface failed
usrp: failed to load firmware
Traceback (most recent call last):
  File "./tvrx_wfm_rcv_gui.py", line 156, in ?
    app = stdgui.stdapp (wfm_rx_graph, "WFM RX")
  File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 35, in __init__
    wx.App.__init__ (self)
"/usr/lib/python2.3/site-packages/wx-2.5.4-gtk2-unicode/wx/_core.py", line
5577, in __init__
"/usr/lib/python2.3/site-packages/wx-2.5.4-gtk2-unicode/wx/_core.py", line
5229, in _BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 38, in OnInit
    frame = stdframe (self.flow_graph_maker, self.title)
  File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 59, in __init__
    self.panel = stdpanel (self, self, flow_graph_maker)
  File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 80, in __init__
    self.fg = flow_graph_maker (frame, self, vbox, sys.argv)
  File "./tvrx_wfm_rcv_gui.py", line 37, in __init__
    src = usrp.source_c (0, decim, 1, 0xf0f0f0f2, 0)
  File "/usr/local/lib/python2.3/site-packages/gnuradio/usrp.py", line 65,
in source_c
    return ((usrp0.source_c, usrp1.source_c)[look_for_usrp(which)])(which,
*args, **kwargs)
  File "/usr/local/lib/python2.3/site-packages/gnuradio/usrp1.py", line
1168, in source_c
    return _usrp1.source_c(*args)
RuntimeError: std::runtime_error

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