I've tried USRP udev permission configuration, like below:
*# /usr/sbin/groupadd usrp
# /usr/sbin/usermod -a usrp [username]*
(in file, 10-usrp.rules)
# rule to grant read/write access on USRP to group named usrp.
# to use, install this file in /etc/udev/rules.d as 10-usrp.rules
*ACTION=="add", BUS=="usb", SYSFS{idVendor}=="fffe",
SYSFS{idProduct}=="0002", GROUP:="usrp", MODE:="0660"
*
after rebooting a machine,
*ls -lR /dev/bus/usb*
/dev/bus/usb:
total 0
drwxr-xr-x 2 root root 80 2010-11-15 13:13 001
drwxr-xr-x 2 root root 80 2010-11-15 13:09 002
/dev/bus/usb/001:
total 0
crw-rw-r-- 1 root root 189, 0 2010-11-15 13:09 001
crw-rw---- 1 root usrp 189, 2 2010-11-15 13:13 003
/dev/bus/usb/002:
total 0
crw-rw-r-- 1 root root 189, 128 2010-11-15 13:09 001
crw-rw-r-- 1 root root 189, 129 2010-11-15 13:09 002
So, the connection before execution is fine.
However, everytime I run a flow graph, it immediately disconnects.
And through me an error
usrp: failed to find usrp[0]
Traceback (most recent call last):
File "/home/songsong/Desktop/top_
block.py", line 84, in<module>
tb = top_block()
File "/home/songsong/Desktop/top_block.py", line 34, in __init__
self.usrp_simple_sink_x_0 = grc_usrp.simple_sink_c(which=0, side="A")
File
"/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/simple_usrp.py",
line 91, in __init__
self._make_usrp(which=which, nchan=1)
File "/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/common.py",
line 28, in _make_usrp
def _make_usrp(self, *args, **kwargs): self._u =
self._usrp_args[0](*args, **kwargs)
File "/usr/local/lib/python2.6/dist-packages/gnuradio/usrp/usrp_swig.py",
line 2475, in sink_c
return _usrp_swig.sink_c(*args, **kwargs)
RuntimeError: can't open usrp
2010/11/15 Josh Blum <[email protected]>
> Did you setup the udev permissions on your system? -Josh
>
>
> On 11/14/2010 07:13 PM, Songsong Gee wrote:
>
>> Now I'm trying to test a very simple TX/RX examples
>> I have a USRP1 and basic TX/RX board
>>
>> GNUradio flow graph is like a link here
>> http://picasaweb.google.com/gee.songsong/Study#5539608314025540050
>>
>> When I run it by pressing F6, it is terminated with an error message like
>> below:
>>
>> Generating: "/home/songsong/Desktop/top_block.py"
>> Executing: "/home/songsong/Desktop/top_block.py"
>>
>> usrp: failed to find usrp[0]
>> Traceback (most recent call last):
>> File "/home/songsong/Desktop/top_block.py", line 84, in<module>
>> tb = top_block()
>> File "/home/songsong/Desktop/top_block.py", line 34, in __init__
>> self.usrp_simple_sink_x_0 = grc_usrp.simple_sink_c(which=0, side="A")
>> File
>> "/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/simple_usrp.py",
>> line 91, in __init__
>> self._make_usrp(which=which, nchan=1)
>> File
>> "/usr/local/lib/python2.6/dist-packages/grc_gnuradio/usrp/common.py",
>> line 28, in _make_usrp
>> def _make_usrp(self, *args, **kwargs): self._u =
>> self._usrp_args[0](*args, **kwargs)
>> File
>> "/usr/local/lib/python2.6/dist-packages/gnuradio/usrp/usrp_swig.py",
>> line 2475, in sink_c
>> return _usrp_swig.sink_c(*args, **kwargs)
>> RuntimeError: can't open usrp
>>
>> Done
>>>>>
>>>>
>> I really really cannot find out what am I doing wrong :(
>>
>>
>>
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> [email protected]
>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>
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