On Tue, Aug 13, 2019 at 07:54:16PM +0200, Thomas Huth wrote: > On 8/13/19 3:30 PM, Stefan Hajnoczi wrote: > > The -usb section of the man page is not very clear on what exactly -usb > > does and fails to mention xHCI as a modern alternative (-device > > nec-usb-xhci). > > > > Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com> > > --- > > qemu-options.hx | 7 +++++-- > > 1 file changed, 5 insertions(+), 2 deletions(-) > > > > diff --git a/qemu-options.hx b/qemu-options.hx > > index 9621e934c0..7d11c016d1 100644 > > --- a/qemu-options.hx > > +++ b/qemu-options.hx > > @@ -1436,12 +1436,15 @@ STEXI > > ETEXI > > > > DEF("usb", 0, QEMU_OPTION_usb, > > - "-usb enable the USB driver (if it is not used by default > > yet)\n", > > + "-usb enable on-board USB host controller (if not enabled > > by default)\n", > > QEMU_ARCH_ALL) > > STEXI > > @item -usb > > @findex -usb > > -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? Stefan
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