From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D7A0E23E35F; Thu, 5 Feb 2026 17:33:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770312807; cv=none; b=HN8CmCHf6eikElwApG+TsfGKP/rScmIOYmCA5vFUE8rNrSWoIvy/AiLWlbHLW9qHNeAS6/6kAw5ngoveHOJQsk7EEiY1GN+siWPBOTUUZwEqDBLxYDMRwm41sQC4duU2/DCRuZeQUh6JgzbOZ/PmSkGJQ1xZFDUu5Odf2+XqAt0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770312807; c=relaxed/simple; bh=E0QQ6JFsS0MRxtYhUVUPd4RCwfdAxw9Ag5VEZBnSNHA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ahFItcwYBbibpJsIAa/uiPf4V1ShFQmkrgAPVUyjFIZghJdLrHZz18gG3Xt8rp/4hgBKNOybLR3nW0cmAu/Oj5j0T1DBOF/DaZaT0khZOlI7JVSUd7cGVSLAm9enuTLnG0WmyTKDtnlvoKayzt6oN3NRE3wXD5h30JniQXL6DLI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=D14FRH5M; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="D14FRH5M" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E529CC4CEF7; Thu, 5 Feb 2026 17:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770312806; bh=E0QQ6JFsS0MRxtYhUVUPd4RCwfdAxw9Ag5VEZBnSNHA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=D14FRH5MAL9c5i4EsHlosrXq2Os439jFsBfxkg7lEe4uNnjosVNYLArjBo3JLKabT eWJKoltkqRPbHmCCCcaDabbvLQcRZnz4RG+inCnmQG9Ykh614NO9GcLUusM69omX8R gQpXWAxAfRmwSMZ9WKy79OyZtRY/WN4WMxSFtH4s= Date: Thu, 5 Feb 2026 18:33:23 +0100 From: Greg KH To: sharms Cc: dev@a1rm4x.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, limiao@kylinos.cn, oneukum@suse.com, huanglei@kylinos.cn, lijiayi@kylinos.cn, johannes.bruederl@gmail.com Subject: Re: [PATCH] usb: add QUIRK_NO_BOS for several devices Message-ID: <2026020536-bullseye-smugly-4361@gregkh> References: <2026020527-ivy-gathering-93a7@gregkh> <20260205172432.1007632-1-sharms@snowfoundry.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260205172432.1007632-1-sharms@snowfoundry.com> On Thu, Feb 05, 2026 at 10:24:32AM -0700, sharms wrote: > From: Steve Harms > > On Thu, Feb 05, 2026 at 07:51:17AM +0100, Greg KH wrote: > > Ok, it looks like there is a very broken USB controller chip out there > > in all of these devices. > > Hey Greg, > > I think this references the same issues as in > https://lore.kernel.org/linux-usb/2025122837-creamlike-motivator-8dcb@gregkh/ Yes. > There are a few of us who need 10G support for video capture with > these devices. Understood, and I guess they are all using the same chip in the device? I have the one listed at the link above for testing, but it would be really good if someone could figure out why Windows doesn't have this problem and only Linux does... thanks, greg k-h