2011/2/13 MargoAndTodd <margoandtodd at gmail.com>: > On 02/12/2011 05:30 PM, Kenni Lund wrote: >> 2011/2/13 MargoAndTodd<margoandtodd at gmail.com>: >>> Eventually, I am going to remove Virtual Box from my and all >>> my customer's machines in favor of KVM. So the Harmony may >>> be short lived if KVM does not also support USB as well >>> as Virtual Box 4.0.x. >> >> KVM only supports emulated USB 1.1 at the moment, all USB devices >> requiring USB 2.0 doesn't work (which includes all iPhones and newer >> iPods AFAIK). qemu-kvm 0.14 which will be out soon, has received some >> USB 2.0 patches, but still no initial 2.0 support. Don't expect >> emulated USB 2.0 support in KVM in CentOS anytime soon. >> >> If you have a host with VT-d support, you can try to passthrough one >> of the USB controllers on your motherboard to a guest - or to add a >> PCI/PCIe USB card to the host and dedicate it to a guest. I haven't >> had any luck with ~4-5 different USB controllers/cards, so don't put >> your expectations too high. >> >> Best regards >> Kenni > > Thank you for the heads up! Btw, I haven't tested PCI passthrough of USB controllers with VT-d on SL6/CentOS6. Given that the upstream documentation actually uses an onboard Intel USB controller as an example, it seems like there's a good chance that it will actually work in CentOS 6 if you've got the right hardware: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/sect-Virtualization-PCding_a_PCI_device_to_a_host.html Best regards Kenni