PVIDEO_HW_START_DMA callback function (video.h)
A video miniport driver's HwStartDma function starts a DMA transfer. Reserved for system use.
Syntax
PVIDEO_HW_START_DMA PvideoHwStartDma;
HW_DMA_RETURN PvideoHwStartDma(
PVOID HwDeviceExtension,
PDMA pDma
)
{...}
Parameters
HwDeviceExtension
Pointer to the miniport driver's per-adapter storage area. For more information, see Device Extensions.
pDma
Opaque type for DMA handle.
Return value
HwStartDma returns a HW_DMA_RETURN enumeration value.
Requirements
| Requirement | Value |
|---|---|
| Header | video.h |