VOID
READ_PORT_BUFFER_UCHAR(
IN PUCHAR Port,
IN PUCHAR Buffer,
IN ULONG Count
);
READ_PORT_BUFFER_UCHAR reads a number of bytes from the specified port address into a buffer.
Parameters
Port
Points to the port, which must be a mapped memory range in I/O 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_PORT_BUFFER_UCHAR can be running at any IRQL, assuming the Buffer is resident and the Port is resident, mapped device memory.