WDF_READ_REGISTER_ULONG function (wdfhwaccess.h)

[Applies to UMDF only]

The WDF_READ_REGISTER_ULONG function reads a ULONG value from the specified register address.

Syntax

ULONG WDF_READ_REGISTER_ULONG(
  [in] WDFDEVICE Device,
  [in] PULONG    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_ULONG returns the ULONG value that is read from the specified port address.

Requirements