Hello Alejandra, Both of the instructions are correct. The confusion is that the manual copies the file from the installed version of UHD and the application note copies it from the source code directory. By default the install location will be "/usr/local/" so the full path in [1] would be /usr/local/lib/uhd/utils.
The app note does include the instructions for configuring non-root USB access. https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux#Configuring_USB It also includes the notes about threading priority at the end. https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux#Thread_priority_scheduling I'll have a think about how to make it clear that those sections are necessary reads after finishing the base installation process. A note at the end of the UHD installation section makes sense. Best regards, Derek On Thu, Jul 5, 2018 at 5:03 PM, Alejandra Mercado via USRP-users < usrp-users@lists.ettus.com> wrote: > I believe these instructions are all the more necessary, since they (the > instructions) seem to be unstable. > > For example, [1] says to change folder to <install-path>/lib/uhd/utils > > But there is no such path (at least in UHD version 3.9.7). The closest is > workarea-uhd/uhd/host/lib/utils > > Which, though easy enough to find, begs the question if other paths have > changed then will some of these batches help or hurt? > > Thanks and regards > > > > On Thu, Jul 5, 2018 at 11:56 AM Alejandra Mercado <merc...@ece.umd.edu> > wrote: > >> 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 >>> >> > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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