[Qemu-discuss] usb hid device

[Maja Massarini]

Hi all,

I'm trying to use a hid device inside qemu/kvm without success.
My host OS is Ubuntu and the guest is a Windows XP. 
I have disabled apparmor to have, hopefully, less problems. 
Inside the Windows XP "Device Manager" I see the "Human Interface
Device" listed but I'm not really able to use it. I have already seen
this same behaviour when using the device in a vmware virtual machine
where there was no *usb.generic.allowHID = "TRUE"* directive inside
the .vmx file. 
Adding that directive I'm now able to use the hid device properly inside
the vmware virtual machines. 
When the vmware virtual machine starts I can see in the host, through
dmesg, that the modules usbhid and hid are removed from the kernel.

        313 Mar  5 10:37:21 maja-desktop kernel: [ 7878.457020] usbcore:
deregistering interface driver usbhid
        314 Mar  5 10:37:21 maja-desktop kernel: [ 7878.457135] usbcore:
deregistering interface driver hiddev

When qemu/kvm starts I see no deregistration messages, therefore I
thought to remove the modules by hand (through rmmod) before starting
qemu/kvm but nothing had changed; The hid device is listed inside the
guest system but I can't use it (I mean I can not receive or send any
message/packet through it).

Running the virtual machine with qemu this is what I got:

sudo qemu -m 512 /var/lib/libvirt/images/builder.img -usb -usbdevice
host:c251:1101

pci_add_option_rom: failed to find romfile "pxe-rtl8139.bin"
usb_create: no bus specified, using "usb.0" for "usb-host"
husb: open device 2.6
husb: config #1 need -1
husb: 1 interfaces claimed for configuration 1
husb: grabbed usb device 2.6
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1
husb: config #1 need 1
husb: 1 interfaces claimed for configuration 1

I really don't have a clue about what to do...

Thanks,

Maja