VideoPortReadPortBufferUshort - NtDoc
Native API online documentation, based on the System Informer
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headers
// video.h
VIDEOPORT_DEPRECATED VIDEOPORT_API VOID VideoPortReadPortBufferUshort(
PUSHORT Port,
[out] PUSHORT Buffer,
ULONG Count
);
View the official Windows Driver Kit DDI referenceNo description available.
The VideoPortReadPortBufferUshort function reads a number of USHORT values from a mapped I/O port and writes them into a buffer.
PortPointer to the port. The given Port must be in a mapped I/O-space range returned by VideoPortGetDeviceBase.
Buffer [out]Pointer to a buffer into which an array of USHORT values is written.
CountSpecifies the number of USHORT values to be written to the buffer.
None
The buffer must be large enough to contain at least the specified number of USHORT values.
A miniport driver's HwVidInterrupt or HwVidSynchronizeExecutionCallback function can call VideoPortReadPortBufferUshort.
Callers of VideoPortReadPortBufferUshort can be running at any IRQL, provided that the memory pointed to by the Buffer parameter is resident and that pointed to by the Port parameter is resident, mapped device memory.
HwVidSynchronizeExecutionCallback