Multiplexer Driver Developer’s Guide
Contents
s
Mux_Drv_DevGuide_v07 Page 3 of 36 2006-9-27
Confidential / Released
Contents
0 Document History.................................................................................................................................... 7
1 Introduction.............................................................................................................................................. 9
1.1 Supported Product Versions ......................................................................................................... 10
1.2 Related Documents....................................................................................................................... 11
1.3 Abbreviations................................................................................................................................. 11
2 Architecture............................................................................................................................................ 12
2.1 Hierarchy Chart in the System ...................................................................................................... 12
2.2 Handling of the Physical Serial Port.............................................................................................. 13
2.3 Module Detection .......................................................................................................................... 13
2.4 Handling of Control Lines on Virtual Ports .................................................................................... 14
2.5 Limitation of Virtual Ports .............................................................................................................. 14
2.6 Module Initializing Sequence......................................................................................................... 15
2.7 Module Re-initialization ................................................................................................................. 16
2.8 Power Down.................................................................................................................................. 16
2.8.1 Power Down on PC Suspend ........................................................................................ 16
2.8.2 Power Down after Closing the Last Port........................................................................ 16
2.8.3 Power Down on PC Shutdown ...................................................................................... 17
3 Installation.............................................................................................................................................. 18
3.1 Files Required for WinMux2k Driver Installation ........................................................................... 18
3.2 Installing the WinMux2k Driver...................................................................................................... 18
3.3 Deinstalling the Driver ................................................................................................................... 19
4 Device Settings and Properties............................................................................................................ 20
4.1 Settings on the Serial Multiplexer Properties Page....................................................................... 20
4.2 Settings Stored in the Windows Registry ......................................................................................21
5 Settings for Applications ...................................................................................................................... 25
5.1 Dial-up Network Settings............................................................................................................... 25
5.2 Fax Settings .................................................................................................................................. 25
6 Translate Source Code.......................................................................................................................... 26
6.1 Software Requirements................................................................................................................. 26
6.2 Preparing the Translation.............................................................................................................. 26
6.3 Compiler Flags .............................................................................................................................. 26
7 Additional Source Documentation....................................................................................................... 27
7.1 Interaction of the Different Driver Objects ..................................................................................... 27
7.2 Internal Driver States..................................................................................................................... 28
7.3 Buffer Handling.............................................................................................................................. 29
7.4 Data Transfer ................................................................................................................................ 30
7.4.1 Block Flow Diagram for Data Received by the Module ................................................. 30
7.4.2 Block Flow Diagram for Data Sent to the Module via Virtual Port ................................. 31
7.4.3 SerMuxSend Function ................................................................................................... 32
7.5 The +++-Parser ............................................................................................................................. 34
8 Known Problems ................................................................................................................................... 35
8.1 Booting Operating System ............................................................................................................ 35
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