WDF_READ_PORT_ULONG function (wdfhwaccess.h)

[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
);

[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.

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