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Re: UHD function to determine USB version?

From: Marcus D. Leech
Subject: Re: UHD function to determine USB version?
Date: Fri, 27 Aug 2021 17:46:30 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

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> 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:


Calls a get_usb_speed() function.

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