[MSDN Library June 1998] 7.2.2.3 Handling Device Control Requests in StartIo (22.7999181669394%)
MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Kernel-Mode Drivers > Design Guide > Chapter 7 StartIo and Queue Management Routines > 7.2 StartIo Routine Requirements > 7.2.2 StartIo Routine Functionality