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From: Stefan Hajnoczi <stefanha@gmail.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>,
	qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] usb: reword -usb command-line option and mention xHCI
Date: Thu, 15 Aug 2019 15:09:04 +0100	[thread overview]
Message-ID: <20190815140904.GF10996@stefanha-x1.localdomain> (raw)
In-Reply-To: <20190815061340.gryxnfwaaoswqqi7@sirius.home.kraxel.org>

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On Thu, Aug 15, 2019 at 08:13:40AM +0200, Gerd Hoffmann wrote:
>   Hi,
> 
> > > > -Enable the USB driver (if it is not used by default yet).
> > > > +Enable USB emulation on machine types with an on-board USB host controller (if
> > > > +not enabled by default).  Note that on-board USB host controllers may not
> > > > +support USB 3.0.  In this case -device nec-usb-xhci can be used instead on
> > > 
> > > Should we maybe rather recommend qemu-xhci instead?
> > 
> > I think nec-usb-xhci is preferred because there are Windows drivers.
> > IIRC qemu-xhci works under Linux but not under Windows (just because the
> > PCI Vendor/Device ID aren't covered by any driver).
> > 
> > Gerd: Can you confirm this?
> 
> That applies to windows 7 only, which is EOL next year.
> 
> win7 doesn't ship with xhci drivers, but you can download and use
> nec/renesas drivers which require nec-usb-xhci.
> 
> win8+ ships with generic xhci drivers which works with all xhci
> hardware, including qemu-xhci.
> 
> So it indeed makes sense to refer to qemu-xhci.

Thanks, will fix in v2!

Stefan

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  reply	other threads:[~2019-08-15 14:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13 13:30 [Qemu-devel] [PATCH] usb: reword -usb command-line option and mention xHCI Stefan Hajnoczi
2019-08-13 17:54 ` Thomas Huth
2019-08-14 13:23   ` Stefan Hajnoczi
2019-08-15  6:13     ` Gerd Hoffmann
2019-08-15 14:09       ` Stefan Hajnoczi [this message]
2019-08-14  9:58 ` Dr. David Alan Gilbert

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