In virDomainDeviceDefParse, parsing an input device was actually setting it's type as DEVICE_DISK. The attached patch fixes this. Thanks, Cole commit 75150ac2536c427f74875fc563abf2fc06595dda Author: Cole Robinson <crobinso(a)dhcp-100-19-219.bos.redhat.com&gt; Date: Thu Aug 21 13:27:38 2008 -0400 Fix setting input device type in virDomainDeviceDefParse. diff --git a/src/domain_conf.c b/src/domain_conf.c index d482e68..6b23474 100644 --- a/src/domain_conf.c +++ b/src/domain_conf.c @@ -1656,7 +1656,7 @@ virDomainDeviceDefPtr virDomainDeviceDefParse(virConnectPtr conn, if (!(dev->data.net = virDomainNetDefParseXML(conn, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "input")) { - dev->type = VIR_DOMAIN_DEVICE_DISK; + dev->type = VIR_DOMAIN_DEVICE_INPUT; if (!(dev->data.input = virDomainInputDefParseXML(conn, def->os.type, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "sound")) {