## MMPM/2 Device Driver Reference

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### IDC Interface

IDC stands for inter-device-driver communication. It is a technique for making function calls from one driver to another, thereby allowing the two drivers to communicate with one another. For more information on IDC, refer to the OS/2 Physical Device Driver Reference.

Function prototypes and other declarations are found in MIDI_IDC.H. Note that "function pointers" and "entry points" are synonymous. All pointers, function or otherwise, are 16:16 (far) pointers.