MMPM/2 Device Driver Reference: Difference between revisions

Revision as of 08:33, 15 April 2016

By IBM

MMPM/2 Device Driver Reference

Reprint Courtesy of International Business Machines Corporation, © International Business Machines Corporation

About This Book

The MMPM/2 Device Driver Reference for OS/2 is for subsystem developers who want to write their own physical device drivers (and associated virtual device drivers) to support audio and video adapters in the Multimedia Presentation Manager/2 system.

Note: Multimedia Presentation Manager/2 (MMPM/2) is also referred to as "OS/2 Multimedia".

The IBM Developer Connection Device Driver Kit for OS/2 (DDK) provides PDD and VDD source code that serves as a template that can be modified easily to meet your hardware requirements. Tools to test your device drivers are also available.

Related Information

You should be familiar with the IBM Developer's Toolkit for OS/2. Related OS/2 and OS/2 multimedia technical information includes:

OS/2 Physical Device Driver Reference Defines what a physical device driver is, and how it operates. It also describes the types of physical device drivers, their interfaces, and available system services.

An online version of this book is provided in this package.

OS/2 Virtual Device Driver Reference Defines what a virtual device driver is, how it operates, and when to use one. It also describes the types of virtual device drivers, their interfaces, and available kernel services.

An online version of this book is provided in this package.

OS/2 Multimedia Technical Library

Online versions of the following books are provided with the OS/2 Developer's Toolkit.

OS/2 Multimedia Subsystem Programming Guide Provides guidelines for developing multimedia subsystems. Each subsystem component is described in detail in individual chapters. Models are used to complement the information provided by component sample program templates.

OS/2 Multimedia Application Programming Guide Provides advisory information on application interfaces to help you select and implement functions for your OS/2 multimedia applications. Code examples from fully documented sample programs accompany the descriptions of the functions.

OS/2 Multimedia Programming Reference Provides detailed information on multimedia functions, messages, and data structures to enable you to write code for your multimedia application programs and subsystems.

Using the Online Reference

Before you begin to use this reference, it would be helpful to understand how you can:

Expand the Contents window to see all available topics
Obtain additional information for a highlighted word or phrase
Use action bar choices

How to Use the Contents

When the Contents window first appears, some topics have a plus (+) sign beside them. The plus sign (+) indicates that additional topics are available.

To expand the Contents if you are using a mouse, click on the plus sign. If you are using a keyboard, use the Up or Down Arrow key to highlight the topic, and press the plus key (+).

To view a topic, double-click on the topic (or press the Up or Down Arrow key to highlight the topic, and then press Enter).

How to Obtain Additional Information

After you select a topic, the information for that topic appears in a window. Highlighted words or phrases indicate that additional information is available. You will notice that certain words in the following paragraph are highlighted in green letters. These are called "hypertext terms". If you are using a mouse, double-click on the highlighted word. If you are using a keyboard, press the Tab key to move to the highlighted word and then press Enter. Additional information will appear in a window.

To return to the window you were viewing before you selected a hypertext term, press Esc.

How to Use Action Bar Choices

Several choices are available for managing information presented in the online MMPM/2 Device Driver Reference. There are three pull-down menus on the action bar: the Services menu, the Options menu, and the Help menu.

The actions that are selectable from the Services menu operate in the active window currently displayed on the screen. These actions include the following:

Bookmark Sets a place holder so you can retrieve information of interest to you.

When you place a bookmark on a topic, it is added to a list of bookmarks you have previously set. You can view the list, and you can remove one or all bookmarks from the list. If you have not set any bookmarks, the list is empty.

To set a bookmark, do the following:

Select a topic from the Contents.
When that topic appears, choose the Bookmark option from the Services menu.
If you want to change the name used for the bookmark, type the new name in the field.
Select the Place radio button (or press the Up or Down Arrow key to select it).
Select OK. The bookmark is then added to the bookmark list.

Search Finds occurrences of a word or phrase in the current topic, selected topics, or all topics.

You can specify a word or phrase to be searched. You can also limit the search to a set of topics by first marking the topics in the Contents list.

To search for a word or phrase in all topics, do the following:

Choose the Search option from the Services pull-down.
Type the word or words to be searched.
Select All sections.
Select Search to begin the search.
The list of topics where the word or phrase appears is displayed.

Print: Prints one or more topics. You can also print a set of topics by first marking the topics in the Contents list.

You can print one or more topics. You can also print a set of topics by first marking the topics on the Contents list.

To print the document Contents list, do the following:

Select Print from the Services menu.
Select Contents.
Select Print.
The Contents list is printed on your printer.

Copy: Copies a topic you are viewing to a file you can edit.

You can copy a topic you are viewing into a temporary file named "TEXT.TMP". You can later edit that file by using an editor such as the System Editor.

To copy a topic, do the following:

Expand the Contents list and select a topic.
When the topic appears, select Copy to file from the Services menu.

The system copies the text pertaining to that topic into the temporary TEXT.TMP file.

For information on any of the other choices in the Services menu, highlight the choice and press the F1 key.

Options: Changes the way the Contents list is displayed.

You can control the appearance of the Contents list.

To expand the Contents and show all levels for all topics, select Expand all from the Options menu.

For information on any of the other choices in the Options menu, highlight the choice and press the F1 key.

What's New

Discussion of and pointers to the PAS16 audio sample have been removed.
Pointers to the new object-oriented audio driver sample, TROPEZ.SYS have been included.
References to the AUDIOVDD.SYS virtual driver have been removed. The VBSAUDIO.SYS driver serves as its replacement.

For information on any items discussed in this reference that have been added to OS/2 (beginning with Warp) and their compatibility with different versions of OS/2, see OS/2 Version Compatibility Considerations.

Assistance

There is no technical support for device driver development provided by IBM

Ordering Information

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)

MMPM/2 Device Driver Reference:Adding Support for Audio and Video Adapters

MMPM/2 Device Driver Reference:Audio Physical Device Driver Template

MMPM/2 Device Driver Reference:Audio Virtual Device Driver Template

MMPM/2 Device Driver Reference:MAD16 PDD and VDD Sample Device Drivers

MMPM/2 Device Driver Reference:PDD Sample for Video Capture Adapters

MMPM/2 Device Driver Reference:PDD Sample for MPEG Video Playback Devices

MMPM/2 Device Driver Reference:Audio Sample for Vendor-Specific Drivers

MMPM/2 Device Driver Reference:Using the High-Resolution Timer

MMPM/2 Device Driver Reference:Real-Time MIDI Subsystem

MMPM/2 Device Driver Reference:Audio Device Driver Exerciser (PMADDE) Tool

MMPM/2 Device Driver Reference:AP2/P2STRING Tool

MMPM/2 Device Driver Reference:Ultimotion Data Stream Specification

MMPM/2 Device Driver Reference:DDCMD Messages

MMPM/2 Device Driver Reference:SHD Messages

MMPM/2 Device Driver Reference:Vendor-Specific Driver Commands

MMPM/2 Device Driver Reference:IOCtl Functions

MMPM/2 Device Driver Reference:Data Types

MMPM/2 Device Driver Reference:Types of MIDI Messages

Addendums

OS/2 Version Compatibility Considerations

The following table lists items discussed in this reference that have been added to OS/2 since OS/2 Warp Version 3.0 and discusses their compatibility with different versions of OS/2.

Item Added or Changed	Date Item Added or Changed	Compatibility of Addition or Change
MIDI Driver	November 1995	OS/2 Warp, Version 3.0 and Later
Timer Device Driver	November 1995	OS/2 Warp, Version 3.0 and Later
VSD Updates	November 1995	OS/2 Warp, Version 3.0 and Later

MMPM/2 Device Driver Reference:Notices

MMPM/2 Device Driver Reference:Glossary

@@ Line 118: / Line 118: @@
 === Assistance ===
-Technical support for device driver development is provided by the IBM Driver Development Support Center (DDSC) through a bulletin board system (BBS). You are encouraged to use the DDSC to obtain support by sending in your questions and reviewing the question and answer database which can be downloaded for off-line review.
+There is no technical support for device driver development provided by IBM
-To access the DDSC BBS, dial 512-838-9717 (using a modem) to register and access the support system. For voice support in the United States, call 512-838-9493.
-Additional assistance is available through the IBM Solution Developer Program. For membership information:
-: Internet: ibmsdp@vnet.ibm.com
-: US/Canada: 800-627-8363
-: International: 770-835-9902
-: International Fax: 770-835-9444
 === Ordering Information ===
@@ Line 141: / Line 133: @@
 *The Graphics Adapter Device Driver Reference
 *The MMPM/2 Device Driver Reference (Multimedia)
-To order the DDK call:
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 [[MMPM/2 Device Driver Reference:Adding Support for Audio and Video Adapters]]