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Date:   Thu, 26 Jan 2023 11:23:42 -0500
From:   Alan Stern <stern@rowland.harvard.edu>
To:     Troels Liebe Bentsen <troels@connectedcars.dk>
Cc:     Hans Petter Selasky <hps@selasky.org>,
        Greg KH <gregkh@linuxfoundation.org>, linux-usb@vger.kernel.org
Subject: Re: All USB tools hang when one descriptor read fails and needs to
 timeout
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On Thu, Jan 26, 2023 at 04:26:24PM +0100, Troels Liebe Bentsen wrote:
> But that's another question, how do I get Linux to re-enumerating the
> device and update the sysfs files?

You can force a device reset using libusb or the usb-reset program 
floating around the Internet.  After the kernel resets a device, it 
checks to make sure the device, BOS, configuration, and serial-number 
string descriptors have not changed.  If any of them is different from 
what it used to be, the kernel will re-enumerate the device.

Or, you can get the same effect by unplugging the device and then 
plugging it back in.  But with direct-wired connections, that's not 
possible.

Alan Stern