WDF_READ_PORT_BUFFER_ULONG function (wdfhwaccess.h)

[Applies to UMDF only]

The WDF_READ_PORT_BUFFER_ULONG function reads a number of ULONG values from the specified port address into a buffer.

Syntax

void WDF_READ_PORT_BUFFER_ULONG(
  [in]  WDFDEVICE Device,
  [in]  PULONG    Port,
  [out] PULONG    Buffer,
  [in]  ULONG     Count
);

Parameters

[in] Device

A handle to a framework device object.

[in] Port

Specifies the port address, which must be a mapped memory range in I/O space.

[out] Buffer

A pointer to a buffer into which an array of ULONG values is read.

[in] Count

Specifies the number of ULONG values to be read into the buffer.

Return value

None

Requirements

Requirement Value
Minimum supported client Windows 8.1
Target Platform Universal
Minimum UMDF version 2.0
Header wdfhwaccess.h