NdisMDeregisterDmaChannel

NdisMDeregisterDmaChannel releases a miniport driver’s claim on a DMA channel for its NIC.

VOID 
  NdisMDeregisterDmaChannel(
    IN NDIS_HANDLE  MiniportDmaHandle
    );

Parameters

MiniportDmaHandle

Specifies the handle returned by NdisMRegisterDmaChannel.

Headers

Declared in Ndis.h. Include Ndis.h.

Comments

The caller should consider MiniportDmaHandle invalid as soon as it is passed to NdisMDeregisterDmaChannel. This function releases the NIC’s claim on the DMA channel in the registry.

NdisMDeregisterDmaChannel can be called only from a NIC driver’s MiniportInitialize and MiniportHalt functions.

Callers of NdisMDeregisterDmaChannel run at IRQL = PASSIVE_LEVEL.

See Also

MiniportHalt, MiniportInitialize, NdisMCompleteDmaTransfer, NdisMRegisterDmaChannel, NdisMSetupDmaTransfer