[Cbe-oss-dev] Twiddler2 on PS3?

[jrc at skylon.demon.co.uk]

I have been trying to install Linux onto a UK specification PS3,
upgraded to the 1.60 firmware, using a Twiddler2 (www.handykey.com), a
combined chording keyboard and TrackPoint mouse.

However, the Twiddler2 doesn't work either in the web browser under the
PS3 OS or when attempting to respond to the 'kboot:' prompt when
installing Linux.

CELL-Linux-CL_20061110-ADDON.iso was used to obtain the boot
environment.

The Twiddler2 works well on another Linux system:

gateway:/ # lsusb
Bus 002 Device 012: ID 04b4:0101 Cypress Semiconductor Corp. 
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000  
gateway:/ # lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/10p, 12M
    |__ Port 6: Dev 12, If 0, Class=HID, Driver=usbhid, 1.5M
    |__ Port 6: Dev 12, If 1, Class=HID, Driver=usbhid, 1.5M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/10p, 480M
gateway:/ # 

Is the problem because the keyboard and mouse are beyond a hub?

Is there a fix or work around?