> I don't think the problem is within usbd. The 'no hubs' message > really does mean what it says -- it seems the kernel hasn't succeeded > in initialising the usb host interface to the extent where it sees > the built-in hub which usbd needs to enumerate devices. > > I think you need input from a qemu expert here -- I've never tried qemu > myself. What version of qemu are you using, on what OS? Maybe there's > a trick to configuring usb on qemu, or maybe that version of qemu just > doesn't emulate usb in quite the way that Plan 9 wants to see.
Haven't used qemu much lately. There must be plenty of examples on the web but from what I remember, you have to tell qemu a few things. $ qemu -usb -monitor stdio ... To find vendor/product ids for a device you want, use lsusb on linux or usbconfig on freebsd. The host *must not* load any driver for this device. Tell qemu about it either via command line with "-usbdevice host:<vendor><product>" or later via its monitor shell on stdio with "usb_add host:<vendor><product>"
