Do not have a N900 but usbip will be very useful am sure.
I had compiled in scratchbox and installed the modules on my N800(needed libwrap and libsysfs also), with my Linux desktop serving as the USBIP Server. Am able to list and attach the remote usb device on my N800. Havent played around with it much more though or checked the error with the usb.ids.

server:~# usbip_bind_driver --list
List USB devices
- busid 4-1 (045e:008a)
4-1:1.0 -> usbhid
4-1:1.1 -> usbhid

- busid 5-8 (058f:6335)
5-8:1.0 -> usbip

Client side(N800)
./usbip --list 1xx.xx.xxx.xx(server ip)
usbip err: vhci_attach.c: 586 (main ) open usb.ids
- 1xx.1xx.xx.xxx
5-8: unknown vendor : unknown product (058f:6335)
: /sys/devices/pci0000:00/0000:00:1d.7/usb5/5-8
: (Defined at Interface level) (00/00/00)
: 0 - unknown class / unknown subclass / unknown protocol (08/06/50)

./usbip --port
usbip err: vhci_attach.c: 586 (main ) open usb.ids
8 ports available

Port 00: <Port in Use> at High Speed(480Mbps)
unknown vendor : unknown product (058f:6335)
2-1 -> usbip://1xx.xxx.xx.xxx:3240/5-8 (remote devid 0005001d (bus/dev 005/029))
2-1:1.0 used by usb-storage
/sys/class/scsi_device/0:0:0:0/device
.........................

netstat -tapn (on server)
tcp6 0 0 1xx.1xx.xx.xxx:3240 1xx.xxx.xxx.xx:58989 ESTABLISHED