On 04/12/2021 12:06 PM, para...@kwesst.com wrote:
Hi everyone, I'm just starting out with the USRP B205 mini-i, and I'm
having some issues.
I'm running Ubuntu 20.04 LTS, I've also installed the UHD toolchain
using the instructions on the Ettus website (Building and Installing
the USRP Open-Source toolchain (UHD and GNURadio) on Linux. The UHD
version is v4.0.0.0.
So, after installing UHD and running the 'make test' diagnostic,
everything passes 100%, so it seems like everything is working
correctly. I've also made sure that the 'uhd-usrp.rules' file has been
copied to the /etc/udev/rules.d directory.
When I plug in the B205 mini and do a 'lsusb', it finds a device with
the VID/PID of 2500:0022 called "Cypress WestBridge". This is the B205
because when I unplug and run 'lsusb' it disappears, then if I plug it
back in it reappears. Great!
So next I try 'uhd_find_devices' and it finds nothing. It returns with:
[INFO] [UHD] linux; GNU C++ version 9.3.0; Boost_107100;
UHD_4.0.0.HEAD-0-g90ce6062
No UHD Devices Found
Questions:
1) Should the uhd-usrp.rules have a specific entry for the B205?
My "rules" file has the following for B2xx devices:
#B200
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2500", ATTRS{idProduct}=="0020",
MODE:="0666"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="2500", ATTRS{idProduct}=="0021",
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"
You could try:
uhd_usrp_probe --args type=b200
If that fails, try again as root.
If it works as root, then you have a rules issue.
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