Dear USRP folks, If the steps in [1] and [2] are needed to prevent the sudo requirement (I have the same problem, Hojoon), then could Ettus please add those commands to the installation instructions in
https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux If it had not been for Hojoon's post, I would be at sea as to how to solve it. Regards On Tue, May 8, 2018 at 1:37 AM Nicolas Cuervo via USRP-users < usrp-users@lists.ettus.com> wrote: > All that you are seeing is part of the normal behavior. The warnings are > fairly descriptive on telling you what is happening. As you did, you set > the Udev rules as depicted in our manual [1]. Later, you see the thread > priority and you are encouraged to go to the manual again, where you will > find the description of that warning and what to do to set the thread > priority [2]. > > -Nicolas > > [1] https://files.ettus.com/manual/page_transport.html#transport_usb_udev > [2] > https://files.ettus.com/manual/page_general.html#general_threading_prio > > On Tue, May 8, 2018 at 6:15 AM, Hojoon Yang via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Hi, I resolved the "[ERROR] [USB] USB open failed: insufficient >> permissions." problem >> >> >> by the following commands, >> >> >> sudo cp uhd-usrp.rules /etc/udev/rules.d/ >> >> sudo udevadm control --reload-rules >> >> sudo udevadm trigger >> >> >> However, I still get the warning if I executed the uhd example programs >> without "sudo" >> >> >> [WARNING] [UHD] Unable to set the thread priority. Performance may be >> negatively affected. >> >> Please see the general application notes in the manual for instructions. >> >> EnvironmentError: OSError: error in pthread_setschedparam >> >> >> >> For example, >> >> >> >> sudo ./tx_waveforms .. -> No such warning >> >> ./tx_waveforms .. -> [WARNING] [UHD ]..... >> >> >> >> Is this a bug? or normal behavior? >> >> >> >> Regards, >> >> Hojoon >> >> >> >> -----------------------Original Message----------------------- >> From: Hojoon Yangvia USRP-users <usrp-users@lists.ettus.com> >> To: "Marcus D. Leech via USRP-users" <usrp-users@lists.ettus.com> >> Sent date: 2018-05-08 11:33:40 GMT +0900 (Asia/Seoul) >> Subject: Re: [USRP-users]UHD installation >> >> Thanks Marcus. >> >> >> >> I did it. But, nothing changed. I will re-install the uhd and come back >> if still have problems. >> >> >> >> But, is there any relationship between kernel version and uhd version? I >> use UHD 3.11. >> >> >> >> currently, I use Ubuntu 14.04.5 LTS and the kernel version is >> 4.2.0-42-generic >> >> >> Because, the latest kernel version NI RIO supports is 4.2.x. I need it >> for USRP X310. >> >> >> Regards, >> >> >> Hojoon >> >> >> >> -----------------------Original Message----------------------- >> From: "Marcus D. Leech via USRP-users" <usrp-users@lists.ettus.com> >> To: usrp-users@lists.ettus.com >> Sent date: 2018-05-08 10:47:47 GMT +0900 (Asia/Seoul) >> Subject: Re: [USRP-users] UHD installation >> On 05/07/2018 09:42 PM, Hojoon Yang via USRP-users wrote: >> >> Hi, >> >> >> >> When I executed the "uhd_find_devices" >> >> >> >> I got "[ERROR] [USB] USB open failed: insufficient permissions." >> >> >> However, when I put sudo in it(i.e. sudo uhd_find_devices", there is no >> such error. >> >> >> >> Also, when I typed "./tx_waveforms ..." >> >> >> >> I got an following WARNING >> >> "[WARNING] [UHD] Unable to set the thread priority. Performance may be >> negatively affected. >> >> Please see the general application notes in the manual for instructions. >> >> EnvironmentError: OSError: error in pthread_setschedparam" >> >> >> >> similarly, the warning disappeared when I put the sudo in it. >> >> >> >> Marcus said it is incomplete installation, if the sudo needed. >> >> >> >> As Marcus recommended, I created(because there was no such file) >> /etc/udev/rules.d/10-usrp.rules and put the following contents. >> >> >> >> # >> # Copyright 2011,2015 Ettus Research LLC >> # >> # This program is free software: you can redistribute it and/or modify >> # it under the terms of the GNU General Public License as published by >> # the Free Software Foundation, either version 3 of the License, or >> # (at your option) any later version. >> # >> # This program is distributed in the hope that it will be useful, >> # but WITHOUT ANY WARRANTY; without even the implied warranty of >> # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> # GNU General Public License for more details. >> # >> # You should have received a copy of the GNU General Public License >> # along with this program. If not, see <http://www.gnu.org/licenses/> >> <http://www.gnu.org/licenses/>. >> # >> >> #USRP1 >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="fffe", ATTRS{idProduct}=="0002", >> MODE:="0666" >> >> #B100 >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="2500", ATTRS{idProduct}=="0002", >> MODE:="0666" >> >> #B200 >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="2500", ATTRS{idProduct}=="0020", >> MODE:="0666" >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="2500", ATTRS{idProduct}=="0022", >> MODE:="0666" >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="3923", ATTRS{idProduct}=="7813", >> MODE:="0666" >> SUBSYSTEMS=="usb", ATTRS{idVendor}=="3923", ATTRS{idProduct}=="7814", >> MODE:="0666" >> >> >> >> However, nothing changed. >> >> >> Do I need to re-install the uhd? >> >> >> >> >> >> Regards, >> >> Hojoon >> >> You also need to: >> >> sudo udevadm control --reload-rules >> >> And then replug your USRP >> >> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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