PSC 1100 not detected in YellowDog Linux

I'm trying to get a PSC1100 configured in YellowDog 3.0.

ptal-init setup probes for usb devices, but doesn't find any.

cat /proc/bus/usb/devices shows the printer is detected, lsmod shows the 
printer module is loaded, but usbcore and usb-ohci aren't loaded. I'm 
presuming usb is compile in to the kernel since USB works for storage 
devices and if I try to insmod the usbcore and usb-ohci modules are not 
found. I've had a good look round for them and they really don't exist 
on my system.

I'm using hpoj-0.91 and hpijs-1.6 and cups-1.1.17.

Any clues?

Thanks

john




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