ndis with USB wifi dongle - no joy

[Tom K]

I'm running PC-BSD, with FreeBSD 6 under the hood. The device is a 
Netgear MA111, with Prism 2.5 chipset, which dmesg shows as

ugen1: vendor 0x0846 product 0x4110, rev 1.10/1.32

This is what I've done so far:

- Installed the kernel source in /usr/src/sys.
- Copied over the .inf and .sys files from the WinXP driver
- Run ndisgen, which reported success
- Copied the new module to /boot/kernel
- kldload ndis and kldload new_module

No ndis interface is created, and dmesg shows the following messages:

no match for USBD_CreateConfigurationRequestEx
no match for USBD_ParseConfigurationDescriptorEx

I can't find any reference anywhere to these errors, or anything like 
them. I'd be grateful for any suggestions.

TIA
Tom K.