RBM11G- MiniPCIe- USB Mode

Has anyone been able to use cellular card in MiniPCIe form factor but using USB mode on Mikrotik RBM11G board? On Mikrotik RouterOS, there is a menu to switch MiniPCI vs USB mode on the board. However, I did not find any information about how to do it in OpenWRT and hence the question. Anyone have any leads in this subject?

Just use it, no switch is required.