Edit

WDF_READ_REGISTER_ULONG64 function (wdfhwaccess.h)

  • Article

[Applies to UMDF only]

The WDF_READ_REGISTER_ULONG64 function reads a ULONG64 value from the specified register address.

Syntax

ULONG64 WDF_READ_REGISTER_ULONG64(
  [in] WDFDEVICE Device,
  [in] PULONG64  Register
);

Parameters

[in] Device

A handle to a framework device object.

[in] Register

A pointer to the register address, which must be a mapped range in memory space.

Return value

WDF_READ_REGISTER_ULONG64 returns the ULONG64 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