Asus N53 USB WiFi Driver porting

Hi folks, I have a board with 2.6.27.5 kernel and I want to use Asus N53 USB WiFi dongle on it in direct mode. I have used rt5572sta driver ver 2.6.0.1 and the dongle is able to work in infra and ad hoc mode, but direct mode is not working. Only ra0 interface is made when the module is inserted, interface p2p0 needed for direct mode does not comes up. I can not change my kernel version as all my running applications can not be ported to newer kernels. Thanks in advance for your help! Regards, A Sharma