From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= Subject: Re: Bug: USB Bridge Will Not PassThru Date: Wed, 18 Jun 2014 17:10:53 +0300 Message-ID: <20140618141053.GA18930@reaktio.net> References: <1403071231.18741.130039173.1102B089@webmail.messagingengine.com> <20140618064857.GY18930@reaktio.net> <1403099135.28919.130179277.1700E6D0@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <1403099135.28919.130179277.1700E6D0@webmail.messagingengine.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: merc1984@f-m.fm Cc: Xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On Wed, Jun 18, 2014 at 06:45:35AM -0700, merc1984@f-m.fm wrote: > On Tue, Jun 17, 2014, at 23:48, Pasi K=E4rkk=E4inen wrote: > = > On Tue, Jun 17, 2014 at 11:00:31PM -0700, [1]merc1984@f-m.fm wrote: > = > = > I have a device which is a programmable bridge by Cirrus > Semiconductor. > It converts parallel TTL to USB2. I've built udev rules to upload= its > firmware when detected (by VID/PID), and to set the permissions an= d a > systemd alias of its new identity after the firmware is loaded. > ... > = > Are you using qemu-traditional or qemu-upstream for this HVM guest? > = > Note that qemu-traditional only supports USB 1.1 emulated passthru, > while qemu-upstream also supports USB2 and USB3. > = > = > Using qemu-xen-traditional, as I must have VGA passthrough. This USB > bridge is a USB2 device and must work at those speeds. Is this going = to > be possible? > = > More info in my next email. > = USB2 is not possible with qemu-traditional. You've have to use PVUSB, which has USB2 support, if you have the drivers. -- Pasi