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Date: Wed, 14 Feb 2024 16:22:45 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Muni Sekhar <munisekharrms@gmail.com>
Cc: linux-usb@vger.kernel.org
Subject: Re: usb: read interface string descriptor(iInterface) from linux
 service
Message-ID: <2024021432-woven-affix-1b4e@gregkh>
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On Wed, Feb 14, 2024 at 08:04:46PM +0530, Muni Sekhar wrote:
> HI all,
> 
> USB devices can have multiple interfaces (functional units) that serve
> different purposes (e.g., data transfer, control, audio, etc.).
> 
> Each interface can have an associated string descriptor (referred to
> as iInterface). The string descriptor provides a human-readable name
> or description for the interface.
> 
> >From user space service utility, How to scan all the USB devices
> connected to the system and read each interface string
> descriptor(iInterface)  and check whether it matches "Particular
> String" or not.
> 
> The service program should trigger scanning all the USB devices on any
> USB device detection or removal. Can libusb be used for it?
> 
> Any input would be appreciated.

You asked this already on the systemd mailing list, why the duplicate
here?