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1996-12-30
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OSMMCLPR - PARAMETERS FOR NEW CREATIVE LABS AUDIO DRIVERS IN OS/2 WARP 4
10/23/96
=======================================================================
Parameters for New Creative Labs Audio Drivers in OS/2 Warp 4
=======================================================================
Please Read Entire Document for Full Explanation of Procedures
--------------------------------------------------------------
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
______________________________________________________________________
IBM disclaims all warranties, whether express or implied, including
without limitation, warranties of fitness and merchantability with
respect to the information in this document. By furnishing this
document, IBM grants no licenses to any related patents or copyrights.
Copyright (c) 1994, 1995 IBM Corporation. Any trademarks and product
or brand names referenced in this document are the property of their
respective owners. Consult your product manuals for complete trademark
information.