1) Run: sudo chmod u+s /usr/local/bin/usrp2_socket_opener
2) As root edit /etc/security/limits.conf and add the line: @usrp - rtprio 50 If your not already in the USRP group add your user with: useradd -G usrp username (This will create the group if it doesn't already exist) -- Tim On Sat, Jan 16, 2010 at 1:56 PM, Mattias Kjellsson <m...@kth.se> wrote: > amarnath alapati wrote: > >> hi folks, >> I am using BENCHMARK_TX.PY, BENCHMARK_RX.PY to test the >> transmission and reception of signals. I have doubts regarding the outpu >> that is appearing on the screen. >> >> >>> gr_fir_fff: using SSE >> socket(PF_PACKET, SOCK_RAW, htons(0xBEEF)): Operation not permitted >> eth0: socket: No such file or directory >> Requested RX Bitrate: 100k >> Actual Bitrate: 125k >> Warning: Failed to enable realtime scheduling. >> >> >> 1) What is the SOCKET part in the output >> > Running as root should resolve this. But this should also be resolved by > means described on the wiki- page. > > 2) What is the difference between Actual Bitrate and Requested Bitrate >> > The actual bit rate is calculated from a couple of parameters, and I think > actual bit- rate is "close enough" to the requested one, given that there > are some limitations regarding decimation/interpolation rates and so > forth... > > 3)How to enable real time scheduling >> > There are some ways to elivate the privs. The quickest way is to run the > aplication as root. This is not the recomended way, which has something to > do with setting some privlegies and execution bits for an application. More > information should be avaliable in the archives, and on the wiki- page. > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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