WDF_READ_PORT_BUFFER_ULONG - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
// wdfhwaccess.h

VOID WDF_READ_PORT_BUFFER_ULONG(
  [in]  WDFDEVICE Device,
  [in]  PULONG    Port,
  [out] PULONG    Buffer,
  [in]  ULONG     Count
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-wdfhwaccess-wdf_read_port_buffer_ulong)

WDF_READ_PORT_BUFFER_ULONG function

Description

[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.

Parameters

Device [in]

A handle to a framework device object.

Port [in]

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

Buffer [out]

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

Count [in]

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