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WDF_READ_PORT_ULONG function (wdfhwaccess.h)

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[Applies to UMDF only]

The WDF_READ_PORT_ULONG function reads a ULONG value from the specified port address.

Syntax

ULONG WDF_READ_PORT_ULONG(
  [in] WDFDEVICE Device,
  [in] PULONG    Port
);

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.

Return value

WDF_READ_PORT_ULONG returns the ULONG value that is read from the specified port address.

Requirements

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