The IoAllocateAdapterChannel routine is obsolete and is exported only to support existing drivers. Use AllocateAdapterChannel instead.
NTSTATUS
IoAllocateAdapterChannel(
IN PADAPTER_OBJECT AdapterObject,
IN PDEVICE_OBJECT DeviceObject,
IN ULONG NumberOfMapRegisters,
IN PDRIVER_CONTROL ExecutionRoutine,
IN PVOID Context
);