>> 1) Start qemu: >> qemu -usbdevice host:auto:3.* >> qemu places a "grab" for all ports in this bus. > > A bus' host controller is a PCI device you can unbind from its driver. > Nothing but a hotplug event or a module load would reprobe it. > > What happens if you unbind a USB device and produce a port > statuschange on its parent is a good question. Simply try it, you > can trigger it by hand through sysfs. The "bus" above was qemu terminology (the syntax for claiming a host device is either bus.addr or VID:PID) and for that I apologize. I 'm not really interested in unbinding the HCD. What I 'm trying to achieve is to be able to assign one or more (root) hub ports to a guest VM, in a way that this assignment is persistent across device resets/disconnects/reconnects until the user issues an explicit "I don't care about this port anymore" call. Thanks, Pantelis -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
