WRITE_REGISTER_BUFFER_UCHAR function (miniport.h)

The WRITE_REGISTER_BUFFER_UCHAR routine writes a number of bytes from a buffer to the specified register.

Syntax

void WRITE_REGISTER_BUFFER_UCHAR(
  [in] volatile UCHAR *Register,
  [in] PUCHAR         Buffer,
  [in] ULONG          Count
);

Parameters

[in] Register

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

[in] Buffer

Pointer to a buffer from which an array of UCHAR values is to be written.

[in] Count

Specifies the number of bytes to be written to the register.

Return value

None

Remarks

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

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

Requirements