BIRD on HW ASIC

Hello! We are going to implement BIRD on HW ASIC platform. We try to understand how to untie bird from linux kernel and route its netlink or unix socket commands to ASIC driver (we carefully studied mail list, but did not find any info about this). We see that ioctl in BIRD will be deprecated in near future. Could you kindly clarify which is the best way of connecting of BIRD with proprietary hardware driver which runs in user space?   -- Roman