[Qemu-devel] [Bug 1385934] Re: USB with passthrougth guest cannot enumerate USB host

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1385934

Title:
  USB with passthrougth guest cannot enumerate USB host

Status in QEMU:
  Expired

Bug description:
  Following the guide at 
http://www.linux-kvm.org/page/USB_Host_Device_Assigned_to_Guest
  Qemu is launched with qemu-system-x86_64 /dev/vgstripe/kvm_wifi -enable-kvm 
-m 512 -k fr -net nic -net tap,ifname=tap1,script=/bin/ifup.script -kernel 
/usr/src/linux_git/arch/x86_64/boot/bzImage -append root=/dev/sda -usb -device 
usb-host,hostbus=1,hostaddr=6
  The USB device does not show and USB stack seems not working
  On the guest:
  dmesg |grep -i usb
  [    1.416966] hub 1-0:1.0: USB hub found
  [    1.420431] usbcore: registered new interface driver usb-storage
  [    1.445374] usbcore: registered new interface driver usbhid
  [    1.446839] usbhid: USB HID core driver
  [    1.863226] usb 1-1: new low-speed USB device number 2 using uhci_hcd
  [    2.126173] usb 1-1: Invalid ep0 maxpacket: 64
  [    2.373161] usb 1-1: new low-speed USB device number 3 using uhci_hcd
  [    2.648112] usb 1-1: Invalid ep0 maxpacket: 64
  [    2.892404] usb 1-1: new low-speed USB device number 4 using uhci_hcd
  [    2.913001] usb 1-1: Invalid ep0 maxpacket: 64
  [    3.161367] usb 1-1: new low-speed USB device number 5 using uhci_hcd
  [    3.180070] usb 1-1: Invalid ep0 maxpacket: 64
  [    3.181633] usb usb1-port1: unable to enumerate USB device
  lsusb
  Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

  On the host:
  lsusb
  Bus 001 Device 006: ID 0457:0163 Silicon Integrated Systems Corp. SiS163U 
802.11 Wireless LAN Adapter
  qemu-system-x86_64 --version
  QEMU emulator version 2.1.2, Copyright (c) 2003-2008 Fabrice Bellard

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