ULONG
READ_PORT_ULONG(
IN PULONG Port
);
READ_PORT_ULONG reads a ULONG value from the specified port address.
Parameters
Port
Points to the port address, which must be a mapped range in I/O space.
Return Value
READ_PORT_ULONG returns the ULONG value read from the specified port address.
Comments
Callers of READ_PORT_ULONG can be running at any IRQL, assuming the Port is resident, mapped device memory.