READ_REGISTER_BUFFER_UCHAR

VOID
    READ_REGISTER_BUFFER_UCHAR(
        IN PUCHAR  Register,
        IN PUCHAR  Buffer,
        IN ULONG  Count
        );

READ_REGISTER_BUFFER_UCHAR reads a number of bytes from the specified register address into a buffer.

Parameters

Register

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

Buffer

Points to a buffer into which an array of UCHAR values is read.

Count

Specifies the number of bytes to be read into the buffer.

Comments

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

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