OS/2 2.x Adapter Device Drivers (ADD) - Course OS2DD303
   Device Drivers for SCSI or Proprietary I/O Interfaces

Objective
======================
   To expedite Independent Hardware Vendors (IHV) support of OS/2 2.x
by writing device drivers (DD) to support various PC I/O interfaces.
   This class will identify the protocol on how to communicate with the
Device Manager (DM) using the IORB.  Installation and debug techniques will
also be covered.

Target audience
======================
IBM or IHV programmers who code device drivers for...
   a.  PC I/O interfaces (which usually connect to DASD or CDROM)
   b.  The device interface type: SCSI or proprietary
   c.  Bus type: ISA, EISA, VLB, or MCA.

Attendee prerequisites
======================
   a. Programming expertise: C (MASM useful)
   b. Knowledge of OS/2 1.x Physical DD
         (attend OS2DD101 or equivalent to meet this prerequisite)
   c. Other device drivers for IHV hardware
         DOS, ROM BIOS code, utilities
   d. Intimate knowledge of IHV hardware & programming protocol
   e. Purchased development software (MASM 5.1, MSC 6.0, DDK, OS/2 2.1)

Course length: 5 days

Outline
======================
 OS/2 Structure
 Device Driver types
 Driver Stack under OS/2 2.0
   Adapter Device Driver (ADD)
   Filter ADD
   Device Manager (DM)
 CONFIG.SYS
   Installation (BASEDEV= )
 Boot sequence
 ADD Development considerations
   Command line parameters
  Error handling
 IORB
        Control
   Format
 TESTCFG.SYS
   IOctl functions, parameters
 Device Table Structure
 CDROM filter ADD example
 Sample Code layout
 Device Driver Profiles
 Impact: SCSI versus proprietary interfaces
 Lab:  device driver development