Re: UHD function to determine USB version?

[Marcus Müller]

There's a property tree property that you can query, I keep forgetting which it 
is; I
think it can be derived from .../mboard0/max_link_rate. However, note, that the 
PT is
certainly not a UHD API.

Best regards,
Marcus M
On 27.08.21 23:46, Marcus D. Leech wrote:
> On 2021-08-27 5:39 p.m., Jeff Long wrote:
>> uhd_usrp_probe reports it doesn't it?
> Only as a side-effect of the driver opening the device. It doesn't do 
> anything explicit
> that I can see.
> 
> 
>>
>> On Fri, Aug 27, 2021, 17:35 Marcus D. Leech <patchvonbraun@gmail.com
>> <mailto:patchvonbraun@gmail.com>> wrote:
>>
>>     On 2021-08-27 2:49 p.m., Mike wrote:
>>     > Hello,
>>     >
>>     > I apologize if I missed it in the documentation, but is there a UHD
>>     > function that will return the USB version (e.g. USB 2 or USB 3) that 
>> the
>>     > USRP is using?
>>     >
>>     > I'm using a B200 in a custom C++ program and would like to
>>     > programmatically verify the USB connection speed before attempting high
>>     > rate sampling.
>>     >
>>     >
>>     > Thanks!
>>     >
>>     >
>>     >
>>     I don't think it's exposed in the API, but the driver code here:
>>
>>     
>> https://github.com/EttusResearch/uhd/blob/master/host/lib/usrp/b200/b200_impl.cpp
>>     
>> <https://github.com/EttusResearch/uhd/blob/master/host/lib/usrp/b200/b200_impl.cpp>
>>
>>     Calls a get_usb_speed() function.
>>
>>
>>
>