Can high-level-viwi-service support two single lowlevel binding

Right now I'm creating a new binding to connect usb wheel, and give data to application. I want use the High-Low-Can model like this.

<vehicle can> — <low binding>
                                                   --- <high viwi binding> — <application>
<usb wheel> — <wheel binding>

I checked high binding source, and found out high-can can only connected with low-can.
    afb_daemon_require_api("low-can", 1); 

Please help me with it. Should high viwi support mutli low level bindings.