OS/2 2.x Pointer Device Drivers - Course OS2DD304
  Enabling pointer support for OS/2 2.0

Objective
======================
    To expedite Independent Hardware Vendors (IHV) support of OS/2 2.x by
writing Physical Device Drivers (PDD) to support PC hardware.  This will
permit the pointer hardware (mice, pens, etc.) to be used by multiple OS/2
applications.
    This class will identify the protocol on how to communicate with the
other device drivers kernel using the DevHlp interface.  Installation and
debug techniques will also be covered.

Target audience
======================
IBM or IHV programmers who code device drivers for...
   a.  Pointer devices (mice, pens, etc.)
   b.  For various I/O interfaces (Serial, bus, etc.)

Attendee prerequisites
======================
   a. Programming expertise: C and/or MASM
   b. Knowledge of OS/2 2.x Physical DD (attend OS2DD101 or equivalent)
   c. Knowledge of OS/2 2.x Virtual DD  (attend OS2DD201 or equivalent)
   d. Have written other device drivers for IHV hardware
         DOS, ROM BIOS code, utilities
   e. Intimate knowledge of IHV hardware & programming protocol
   f. Purchased development software (OS/2 2.1, DDK, MSC 6.0, MASM 5.1)

Course length: 3 days

Outline
******************************
OS/2 Structure
Device Driver types
Pointer device driver model
   Character
   Elements: Physical, Virtual
   Device dependent code vs. device independent code
   Swappable/Resident
   Physical vs. logical
   FG/BG/Detached request processing
Required functions
   Collision check
   Pointer positioning logic
   Queue processing
IOCtl Support
Request handler structure
Error handling
IDC to other modules
Monitor processing
Lab: Developing OS/2 Pointer Device Driver