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| author | Gerd Hoffmann <kraxel@redhat.com> | 2013-04-02 12:15:24 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2013-04-03 11:39:43 +0200 |
| commit | f9618633a86cc74b33f178f05154d4edbc08c0fc (patch) | |
| tree | 7497c000a95bc0278271cf4f05f3313f01c66775 /docs | |
| parent | a309ee6e0a256f690760abfba44fceaa52a7c2f3 (diff) | |
| download | qemu-f9618633a86cc74b33f178f05154d4edbc08c0fc.tar.gz | |
usb: update docs for bus name change
At some point the default usb bus name changed from 'usb.0' to
'usb-bus.0' (probably as part of the qom conversion). Update
the usb documentation accordingly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/usb2.txt | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/docs/usb2.txt b/docs/usb2.txt index 43dacdec28..c7a445afcd 100644 --- a/docs/usb2.txt +++ b/docs/usb2.txt @@ -11,7 +11,7 @@ one USB 2.0 bus driven by the EHCI controller. Devices must be attached to the correct controller manually. The '-usb' switch will make qemu create the UHCI controller as part of -the PIIX3 chipset. The USB 1.1 bus will carry the name "usb.0". +the PIIX3 chipset. The USB 1.1 bus will carry the name "usb-bus.0". You can use the standard -device switch to add a EHCI controller to your virtual machine. It is strongly recommended to specify an ID for @@ -27,7 +27,7 @@ a complete example: -drive if=none,id=usbstick,file=/path/to/image \ -usb \ -device usb-ehci,id=ehci \ - -device usb-tablet,bus=usb.0 \ + -device usb-tablet,bus=usb-bus.0 \ -device usb-storage,bus=ehci.0,drive=usbstick This attaches a usb tablet to the UHCI adapter and a usb mass storage @@ -88,22 +88,22 @@ ports (1-4), the emulated (1.1) USB hub has eight ports. Plugging a tablet into UHCI port 1 works like this: - -device usb-tablet,bus=usb.0,port=1 + -device usb-tablet,bus=usb-bus.0,port=1 Plugging a hub into UHCI port 2 works like this: - -device usb-hub,bus=usb.0,port=2 + -device usb-hub,bus=usb-bus.0,port=2 Plugging a virtual usb stick into port 4 of the hub just plugged works this way: - -device usb-storage,bus=usb.0,port=2.4,drive=... + -device usb-storage,bus=usb-bus.0,port=2.4,drive=... You can do basically the same in the monitor using the device_add command. If you want to unplug devices too you should specify some unique id which you can use to refer to the device ... - (qemu) device_add usb-tablet,bus=usb.0,port=1,id=my-tablet + (qemu) device_add usb-tablet,bus=usb-bus.0,port=1,id=my-tablet (qemu) device_del my-tablet ... when unplugging it with device_del. @@ -148,10 +148,10 @@ using for testing is bus 1 + port 1 for 2.0 devices and bus 3 + port 1 for 1.1 devices. Passing through any device plugged into that port and also assign them to the correct bus can be done this way: - qemu -M pc ${otheroptions} \ - -usb \ - -device usb-ehci,id=ehci \ - -device usb-host,bus=usb.0,hostbus=3,hostport=1 \ + qemu -M pc ${otheroptions} \ + -usb \ + -device usb-ehci,id=ehci \ + -device usb-host,bus=usb-bus.0,hostbus=3,hostport=1 \ -device usb-host,bus=ehci.0,hostbus=1,hostport=1 enjoy, |