On Fri, Jul 11, 2014 at 9:27 AM, John Meloche <john1melo...@gmail.com> wrote:
> Hello, > > I did find a simlar entry to this problem on the forum from last month but > there was no usable solution for me unless I missed something. Also I have > not found a way to allow me to change the USB permissions. Any advise will > be a great help. > > Thanks > John > > I have this issue on TWO DIFFERENT MACHINES. Here is what I did on each > of them: > > Completely fresh install of Ubuntu 12.04.4 LTS > apt-get update > apt-get upgrade > apt-get libasound2-dev (because I need to use an 8 channel USB sound card > with my GRC app) > install and configure pybombs (used all default settings) > ./pybombs install gnuradio > > each time I want to run gnuradio-companion I must first set the enviroment > (a minor annoyance) > > ./pybombs env > You only need to run this once to create the environment setup file. > source /home/xxxx/target/setup_env.sh > You can put this in your ~/.bashrc (or equivalent) file to set up your environment when you log in. > sudo /home/xxxx/target/lib/uhd/utils/uhd_images_downloader.py > Again, this only needs to be done once, unless the UHD images change. > > and then > > gnuradio_companion (GRC 3.7.5 GUI works fine) > > However, I have no connection to the USRP B200 > > uhd_find_devices or uhd_usrp_probe returns the following: > > UHD Error: > USB open failed: insufficient permisssions. > See the application notes for your device. > No UHD Devices Found > > running lsusb returns the following: > > Bus 002 Device 006: ID 2500:0200 > > according the information in ~/target/lib/uhd/utils/uhd_usrp.rules, ID > 2500:0200 is the B200 USRP > Copy the uhd_usrp.rules file into /etc/udev/rules.d/ and then reload the udev rules: $ sudo udevadm control --reload-rules Tom
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