## Input/Output Device Driver Reference

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### Conventions

Double-Byte Character Set

Throughout this publication, there are references to specific values for character strings. These values are for the Single-Byte Character Set (SBCS ). When using the Double-Byte Character Set, note that one DBCS character equals two SBCS characters.

Version

Unless otherwise stated, "OS/2" as used in this book refers to the Warp Version of the IBM Operating System/2.