diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2019-08-15 15:14:28 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-08-21 10:42:36 +0200 |
| commit | 73f46fef7400dc1dc6cb5e8914d3d1b3b673459f (patch) | |
| tree | e9ecc7760c57078ee3932e5edb84a08367d8a871 /qemu-options.hx | |
| parent | dc2c037fd23ea3dcf2e13afda22c1c64ab56f96b (diff) | |
usb: reword -usb command-line option and mention xHCI
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 <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190815141428.29080-1-stefanha@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 9621e934c0..1fb362f06f 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 @option{-device qemu-xhci} can be used instead +on machines with PCI. ETEXI DEF("usbdevice", HAS_ARG, QEMU_OPTION_usbdevice, |