A call manager calls a different set of call manager functions than an MCM driver. A call manager calls NdisCm*Xxx* functions, and an MCM driver calls NdisMCm*Xxx* functions.
An MCM driver does not call the NdisCo*Xxx* functions that both connection-oriented clients and call managers call. Instead, an MCM driver calls the following comparable NdisMCm*Xxx* functions:
An MCM driver does not require a call that is comparable to NdisCoSendNetBufferLists, because the send interface between the call manager and the miniport driver is internal to an MCM driver and therefore opaque to NDIS.