With the upgrade to Big Sur, I’ve been unable to initialize my B210.
(Hope the markup works…
```
$ uhd_usrp_probe
[INFO] [UHD] Mac OS; Clang version 12.0.0 (clang-1200.0.32.27);
Boost_107100; UHD_3.15.0.0-MacPorts-Release
[INFO] [B200] Loading firmware image:
/opt/local/share/uhd/images/usrp_b200_fw.hex...
Error: LookupError: KeyError: No devices found for ----->
Empty Device Address
$ uhd_usrp_probe
[INFO] [UHD] Mac OS; Clang version 12.0.0 (clang-1200.0.32.27);
Boost_107100; UHD_3.15.0.0-MacPorts-Release
Error: LookupError: KeyError: No devices found for ----->
Empty Device Address
$ uhd_usrp_probe --args type=b200
Error: LookupError: KeyError: No devices found for ----->
Device Address:
type: b200
```
This happens after a fresh reboot (where the USB connection was made
*after* the reboot) and many times thereafter.
Running Big Sur 11.2.1 on a 2018 Mac mini (x86).
In the hardware summary, the device shows up as “Manufacturer: Unknown” but
the USRP's serial number is reported correctly. This indicates that there
is enough of a path from host to USRP for the USB driver to see the device
serial number. But, oddly, not enough to get a product and vendor id.
I’m at a bit of a loss.
The device works as expected on a linux box with UHD 4.0 as it did with UHD
3.15.
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