From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from [140.186.70.92] (port=39163 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1POfq9-00019j-Kp
	for qemu-devel@nongnu.org; Fri, 03 Dec 2010 19:19:02 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <kraxel@redhat.com>) id 1POfq8-0004yM-BI
	for qemu-devel@nongnu.org; Fri, 03 Dec 2010 19:19:01 -0500
Received: from mx1.redhat.com ([209.132.183.28]:23359)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kraxel@redhat.com>) id 1POfq8-0004xt-3I
	for qemu-devel@nongnu.org; Fri, 03 Dec 2010 19:19:00 -0500
Message-ID: <4CF988EC.6010004@redhat.com>
Date: Sat, 04 Dec 2010 01:18:52 +0100
From: Gerd Hoffmann <kraxel@redhat.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] State of EHCI emulation for QEMU
References: <4CDEE6C5.3010808@web.de>
In-Reply-To: <4CDEE6C5.3010808@web.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, "David S. Ahern" <daahern@cisco.com>

   Hi,

> as you may know, there is an experimental git repository at
>
> 	git://git.kiszka.org/qemu.git ehci

Looking into this right now as I'm busy with various usb issues anyway.
Current state:
   http://cgit.freedesktop.org/spice/qemu/log/?h=usb.1

>   - lacks integration with UHCI (currently, only EHCI is provided by
>     that tree, breaking USB 1.1 devices)

Sort-of fixed (see docs/usb2.txt).

> David furthermore provided the following to-dos:
>   - lacks periodic frames support
>   - lacks isochronous traffic support

--verbose please.  There seems to be some code for that?

>   - lacks split transactions support

That would need a USB 2.0 HUB emulation to be useful.
We lack that one too ;)

>   - NAK/reload support is kludgy at best

--verbose please.

cheers,
   Gerd