In addition to the actual tools and source code available on The IBM Developer Connection Device Driver Kit for OS/2, it also includes the following DDK reference books in online format:

• The Physical Device Driver Reference
  
• The Storage Device Driver Reference
  
• The Input/Output Device Driver Reference
  
• The Pen for OS/2 Device Driver Reference
  
• The Virtual Device Driver Reference
  
• The Presentation Device Driver Reference
  
• The Display Device Driver Reference
  
• The Printer Device Driver Reference
  
• The Graphics Adapter Device Driver Reference
  
• The MMPM/2 Device Driver Reference (Multimedia)

┌────────────────────┬─────────────────────┬─────────────────────┐│U.S.A.:             │1-800-633-8266       │                     │
├────────────────────┼─────────────────────┼─────────────────────┤
│Canada:             │1-800-561-5293       │                     │
├────────────────────┼─────────────────────┼─────────────────────┤
│When calling from   │ English            │(+45) 48101500       │
│Europe, the Middle  │ French             │(+45) 48101200       │
│East, or Africa, the│ Italian            │(+45) 48101600       │
│number depends on   │ German             │(+45) 48101000       │
│the language you use│ Spanish            │(+45) 48101100       │
│to place the order: │ Dutch              │(+45) 48101400       │
│                    │ Danish             │(+45) 48101300       │
│                    │ Finish             │(+45) 48101650       │
│                    │ Swedish            │(+45) 48101150       │
│                    │ Norwegian          │(+45) 48101250       │
│                    │ FAX                │(+45) 48142207       │
├────────────────────┼─────────────────────┼─────────────────────┤
│When ordering from  │ Bolivia            │    02-35 1840       │
│Latin America or    │ Columbia           │   01-257-0111       │
│South America, the  │ Dominican Republic │      566-5161       │
│number depends on   │ El Salvador        │    02-98 5011       │
│the country from    │ Honduras           │       32-2319       │
│which you are       │ Paraguay           │   021-444 094       │
│calling:            │ Urugruay           │    02-923 617       │
│                    │ Chile              │   02-633-4400       │
│                    │ Costa Rica         │      223-6222       │
│                    │ Ecuador            │    02-56 5100       │
│                    │ Guatemala          │    02-31 5859       │
│                    │ Panama             │    02-639 977       │
│                    │ Peru               │   014-36 6345       │
│                    │ Venezuela          │   02-908-8901       │
│                    │ Argentina          │   01-313-0014       │
├────────────────────┼─────────────────────┼─────────────────────┤
│To order from Asia/ │ All except Japan   │(61) 2-354-7684      │
│Pacific:            │ Japan              │(81) 3-3495-2045(Fax)│
│                    │                     │Fax request to:      │
│                    │                     │DAP-J, IBM Japan     │
├────────────────────┼─────────────────────┼─────────────────────┤
│To order from SE    │(021) 800-6120(Voice)│                     │
│Brazil:             │(021) 800-6936(Fax)  │                     │
├────────────────────┼─────────────────────┼─────────────────────┤
│To order from       │ Mexico City        │627-2444             │
│Mexico:             │ Country            │91-800-00639         │
└────────────────────┴─────────────────────┴─────────────────────┘