map through unknown usb device from host

Hello,

I am having a virtual machine running windows XP on a windows 7 64bit host. The device I attached to usb isn't recognized in Windows 7 because there are no drivers for it. This results showing up as Unknown Device in the device manager.

I want to connect this through to the virtual machine but it doesn't show up in the list of usb devices

I already tried to set HID devices to true in the VMX file, this results in showing up the mouse and keyboard to map but not the Unknown device I want to map.

Is it posible to map through a unkown device and if possible how do I get it to show up?