PHW_DMA_STARTED - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// srb.h

PHW_DMA_STARTED PhwDmaStarted;

VOID PhwDmaStarted(
  [in] PVOID DeviceExtension
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-srb-phw_dma_started)

PHW_DMA_STARTED callback

Description

The PHW_DMA_STARTED routine prototype declares a SCSI miniport driver routine that starts DMA for subordinate DMA device.

Parameters

DeviceExtension [in]

Pointer to the miniport driver's per-HBA storage area.

Remarks

If the HBA is a subordinate DMA device, the SCSI miniport driver's HwScsiDmaStarted routine is called after the OS-specific port driver has set up the system DMA controller for a DMA transfer.

Miniport drivers that work with the StorPort driver do not support adapters that require subordinate DMA.

See also

HwScsiDmaStarted

View the official Windows Driver Kit DDI reference

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