* Stefan Hajnoczi (stefa...@redhat.com) 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).
Isn't 'qemu-xhci' the current favoured device?
Dave
> 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
> +machines with PCI.
> ETEXI
>
> DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice,
> --
> 2.21.0
>
>
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
