From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-devel@nongnu.org, kraxel@redhat.com
Subject: Re: [Qemu-devel] [PATCH] usb: reword -usb command-line option and mention xHCI
Date: Wed, 14 Aug 2019 10:58:13 +0100 [thread overview]
Message-ID: <20190814095813.GA2921@work-vm> (raw)
In-Reply-To: <20190813133042.11683-1-stefanha@redhat.com>
* Stefan Hajnoczi (stefanha@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 <stefanha@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 / dgilbert@redhat.com / Manchester, UK
prev parent reply other threads:[~2019-08-14 9:59 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
2019-08-14 9:58 ` Dr. David Alan Gilbert [this message]
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