WRITE_PORT_BUFFER_ULONG function (wudfddi_hwaccess.h)

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

The WRITE_PORT_BUFFER_ULONG function writes a number of ULONG values from a buffer to the specified port address.

Syntax

void WRITE_PORT_BUFFER_ULONG(
  [in] IWDFDevice3 *pDevice,
  [in] PULONG      Port,
  [in] PULONG      Buffer,
  [in] ULONG       Count
);

Parameters

[in] pDevice

Specifies a pointer to the IWDFDevice3 interface for the device object of the device to access.

[in] Port

A pointer to the port, which must be a mapped memory range in I/O space.

[in] Buffer

A pointer to a buffer from which an array of ULONG values is to be written.

[in] Count

Specifies the number of ULONG values to be written to the buffer.

Return value

None

Remarks

For more information, see Reading and Writing to Device Registers in UMDF 1.x Drivers.

Requirements