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... I'm not sure if it's a kvm or a qemu issue, for sure its really important to me solve this problem otherwise I can not leave vmware for kvm. Thanks all, Maja -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html