OS2DD201 - OS/2 Virtual Device Driver (VDD)

This five day workshop will enable programmers to write OS/2 virtual device drivers (VDDs). A VDD enables multiple DOS applications to share hardware.

This workshop will identify the protocol of how the VDD communicates with the OS/2 kernel and DOS session manager using Virtual Device Helper (VDH) services. Installation and debug techniques will also be covered. The OS/2 Developer Connection Device Driver Kit (Devcon-DDK) will be used extensively in order to build and test the VDD.

Length
5 Days

Target audience:
IBM or OEM programmers who code device drivers for PC hardware, such as serial and parallel, SCSI interfaces, and custom interfaces.

Attendee prerequisites:

 * Programming expertise: C, (MASM useful)
 * Have written device drivers/utilities for OEM hardware (DOS device drivers, ROM BIOS, test utilities)
 * Knowledge of OS/2 Physical Device Drivers (recommend attendance at OS2DD101 workshop
 * Attendee must be a licensee of the following software:
 * OS/2 2.1, OS/2 Warp
 * Developer Connection Device Driver Source Kit (DDK)
 * MSC 6.0

Outline:

 * OS/2 Structure
 * Device Driver types
 * Virtual Device Drivers
 * MVDM - Definition/overview
 * VDH - Virtual DevHlp
 * Event trapping: Interrupt, Port
 * Memory management
 * VDM initialization (Instance, global)
 * Synchronization with system events
 * Utilities, debuggers
 * Compiler, Assembler, Linker usage
 * Symbol Generation (MAPSYM)
 * Kernel Debugger (KDB)
 * DDK contents
 * Organization, Build tree, sample code
 * Debug procedures
 * Laboratory: Develop OEM Virtual Device Driver

Download

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