READ_REGISTER_BUFFER_ULONG function (miniport.h)

The READ_REGISTER_BUFFER_ULONG routine reads a number of ULONG values from the specified register address into a buffer.

Syntax

void READ_REGISTER_BUFFER_ULONG(
  [in]  volatile ULONG *Register,
  [out] PULONG         Buffer,
  [in]  ULONG          Count
);

Parameters

[in] Register

Pointer to the register, which must be a mapped range in memory space.

[out] Buffer

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

[in] Count

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

Return value

None

Remarks

The size of the buffer must be large enough to contain at least the specified number of ULONG values.

Callers of READ_REGISTER_BUFFER_ULONG can be running at any IRQL, assuming the Buffer is resident and the Register is resident, mapped device memory.

Requirements

Requirement	Value
Minimum supported client	Available starting with Windows 2000.
Target Platform	Universal
Header	miniport.h (include Wdm.h, Ntddk.h, Ntifs.h, Miniport.h, Wudfwdm.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	Any level (see Remarks section)