[Qemu-devel] RFC/PULL: usb: add support for companion controllers

[Hans de Goede]

Hi Gerd et all,

These patches add support for adding an emulated uhci or ohci companion
controller to our emulated ehci controller. Usage examples:

-device usb-ehci,addr=0b.1,multifunction=on,id=ehci0
-device pci-ohci,addr=0b.0,multifunction=on,masterbus=ehci0.0,num-ports=4

-device usb-ehci,addr=0b.2,multifunction=on,id=ehci0
-device piix3-usb-uhci,addr=0b.0,multifunction=on,masterbus=ehci0.0,firstport=0
-device piix3-usb-uhci,addr=0b.1,multifunction=on,masterbus=ehci0.0,firstport=2

Please review and if there are no issues add these patches to your
usb tree.

These patches are also available in a git tree here:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=usbredir
Note this tree also contains some other patches.

Thanks & Regards,

Hans