OSMMCLPR - PARAMETERS FOR NEW CREATIVE LABS AUDIO DRIVERS IN OS/2 WARP 4
10/23/96
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               Parameters for New Creative Labs Audio Drivers in OS/2 Warp 4
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Please Read Entire Document for Full Explanation of Procedures
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DESCRIPTION

Due to changes in the drivers for Creative Labs audio cards, new 
documentation is needed to address the OS/2 Warp 4 multimedia drivers 
for Creative Labs sound cards.

RESOLUTION

The new drivers use a different command line syntax from the original 
Sound Blaster drivers installed with OS/2 Warp 3.0. The new device 
driver syntax is as follows:

DEVICE=<path>\SB16D2.SYS /C:n /D:n /H:n /I:x /A:xxx /B:n /M:xxx 
/N:SBAUD1$ [/Q] [/EXT]

Following is a description of each of the parameters:      
 
/C:   This sets the card number, usually 1

/D:   8-bit, or low, DMA channel
      Valid values - 0, 1, and 3
      (Sound Blaster cards that use Vibra chipset do not have 0).
      Default value - 1

/H:   16-bit, or high, DMA channel
      Valid values - 5, 6, and 7
      (Sound Blaster cards that use Vibra chipset do not have 6).
      Default value - 5

/I:   IRQ number,
      Valid values - 5, 7, 9, 10, and 11
      Default IRQ - 5

/A:   Base I/O address,
      Valid values - 220, 240, 260, and 280
      Default value - 220

/B:   Buffer size in KB,
      Valid values - 1-24. While any value in this range will work
      fine, for best results don't use this option; let
      the driver use the default buffer size.
      Default value - 8 KB

/M:   MPU-401, or MIDI, port address
      Valid values - 300 and 330
      Default value - 330

/N:   driver name, set this to SBAUD1$

/Q    Quiet mode flag, OPTIONAL
      Setting this option disables all initialization messages.
      If not specified, the initialization messages are displayed
      during startup.

/EXT  This tells the driver to use an external MPU-401 port instead of 
      the internal synthesizer. By default, the drivers are configured 
      to use the internal synthesizer. However, if you have a 
      daughterboard attached to your Sound Blaster card and you want
      MIDI playback to use the synthesizer in the daughterboard,
      specify this flag.

/P    Ignore Plug and Play BIOS if it is present. If Plug and Play BIOS 
      is present, the driver usually queries the BIOS for certain PnP 
      port addresses. Specifying this option causes the driver not to
      access the BIOS and determine these port addresses itself.

Notes: 1. The new driver does not recognize the old positional syntax.

       2. Some Sound Blaster cards do not have 16-bit DMA support. For 
           these cards, the drivers can be configured to use 8-bit DMA 
           channels for 16-bit DMA. Just set the 16-bit DMA Channel 
           parameter(/H:) to use one of the 8-bit
           DMA channels(0, 1 or 3).

A sample CONFIG.SYS statement looks like this:

DEVICE=C:\SBAWE32\SBAWED2.SYS /C:1 /D:1 /H:5 /I:5 /A:220 /B:8 /M:330 
/N:SBAUD1$



warp4
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