NTSTATUS NTAPI HalAllocateAdapterChannel(IN PADAPTER_OBJECT AdapterObject, IN PWAIT_CONTEXT_BLOCK WaitContextBlock, IN ULONG NumberOfMapRegisters, IN PDRIVER_CONTROL ExecutionRoutine)
NTSTATUS NTAPI IoAllocateAdapterChannel(IN PADAPTER_OBJECT AdapterObject, IN PDEVICE_OBJECT DeviceObject, IN ULONG NumberOfMapRegisters, IN PDRIVER_CONTROL ExecutionRoutine, IN PVOID Context)
struct tagContext Context