On 2012/12/01 04:26, Daniel P. Berrange wrote:
From: "Daniel P. Berrange" <berrange@redhat.com>
This adds support for host device passthrough with the LXC driver. Since there is only a single kernel image, it doesn't make sense to pass through PCI devices, but USB devices are fine. For the latter we merely need to make the /dev/bus/usb/NNN/MMM character device exist in the container's /dev
Signed-off-by: Daniel P. Berrange <berrange@redhat.com> ---
[...]
+static int lxcContainerSetupHostdevSubsysUSB(virDomainDefPtr vmDef ATTRIBUTE_UNUSED, + virDomainHostdevDefPtr def ATTRIBUTE_UNUSED, + const char *dstprefix ATTRIBUTE_UNUSED, + virSecurityManagerPtr securityDriver ATTRIBUTE_UNUSED) +{ + int ret = -1; + char *src = NULL; + char *dstdir = NULL; + char *dstfile = NULL; + struct stat sb; + mode_t mode; + + if (virAsprintf(&dstdir, "/dev/bus/usb/%03d", + def->source.subsys.u.usb.bus) < 0) {
better to use USB_DEVFS instead of /dev/bus/usb/