Jump to content

VIAUDD.SYS: Difference between revisions

From EDM2
Ak120 (talk | contribs)
35,819 edits
Created page with "VIA audio sound system driver for the VIA Southbridge with built in AC97 Controller. DEVICE=VIAUDD.SYS '''NOTE:''' There are different drivers with the same name available. ..."
 
Ak120 (talk | contribs)
35,819 edits
mNo edit summary
 
Line 1: Line 1:
{{ProdS |V40=S|V45=S}}
VIA audio sound system driver for the VIA Southbridge with built in AC97 Controller.
VIA audio sound system driver for the VIA Southbridge with built in AC97 Controller.
  DEVICE=VIAUDD.SYS
  DEVICE=\MMOS2\VIAUDD.SYS


'''NOTE:''' There are different drivers with the same name available. Please consult the readme delivered with the driver.
;NOTE: There are different drivers with the same name available. Please consult the readme delivered with the driver.


'''Parameter:'''
==Parameter==
* /N: - Symbolic device name for binding with MMPM/2. This is automatically selected by MINSTALL.EXE. Defaults to VIAUD1$".
* /NO_IRQ_SHARING - Disable the IRQ sharing mode. Normally, VIAUDD.SYS automatically detects whether IRQ sharing is needed and performs the necessary setup.
* /!OEM - Prevent any special setup for AC'97 codec ICs. This parameter disables any vendor-specific setup done by the driver.
* /ALC|/!ALC - Override ALC-201A detection. Normally the driver detects the presence of ALC-201A automatically and performs the necessary setup; however, the presence of codec may be forced using /ALC or disabled with /!ALC (/!ALC is a synonym for /!OEM).
* /LFREQ|/AFREQ /LFREQ, which is the default for chip revisions >=0x30, uses a modified frequency algorithm known from VIA drivers for Linux. /AFREQ, default for the older revisions, uses the officially documented algorithm known from ALSA driver. Use /LFREQ if the sound plays too slowly; use /AFREQ if the sound plays too fast or with interruptions.
* /VERBOSE - Verbose output, useful for troubleshooting or finding out the capabilities of a specific AC'97 solution. Shows if any step during initialization fails and makes a pause to let the user examine the results.
* /QUIET - Quiet initialization - display no messages at all.
* /R: - Configure Audio Codec '97 registers manually. This is intended for advanced users, as the IOCTL90 mixer interface should be usually enough for customization. The format of is: <tt>=,,...</tt> or <tt>..=value,...</tt><br />Refer to AC'97 specification for a list of register values and their meanings.


* /N:
==Practical examples==
Symbolic device name for binding with MMPM/2. This is automatically selected by MINSTALL.EXE. Defaults to VIAUD1$".
 
* /NO_IRQ_SHARING
Disable the IRQ sharing mode. Normally, VIAUDD.SYS automatically detects whether IRQ sharing is needed and performs the necessary setup.
 
* /!OEM
Prevent any special setup for AC'97 codec ICs. This parameter disables any vendor-specific setup done by the driver.
 
* /ALC|/!ALC
Override ALC-201A detection. Normally the driver detects the presence of ALC-201A automatically and performs the necessary setup; however, the presence of codec may be forced using /ALC or disabled with /!ALC (/!ALC is a synonym for /!OEM).
 
* /LFREQ|/AFREQ /LFREQ,
which is the default for chip revisions >=0x30, uses a modified frequency algorithm known from VIA drivers for Linux. /AFREQ, default for the older revisions, uses the officially documented algorithm known from ALSA driver. Use /LFREQ if the sound plays too slowly; use /AFREQ if the sound plays too fast or with interruptions.
 
* /VERBOSE
Verbose output, useful for troubleshooting or finding out the capabilities of a specific AC'97 solution. Shows if any step during initialization fails and makes a pause to let the user examine the results.
 
* /QUIET
Quiet initialization - display no messages at all.
 
* /R:
Configure Audio Codec '97 registers manually. This is intended for advanced users, as the IOCTL90 mixer interface should be usually enough for customization. The format of is:
=,,...
or
..=value,...
 
Refer to AC'97 specification for a list of register values and their meanings.
 
'''Practical examples:'''
*Enable the +20 dB microphone gain: /R:0E=40
*Enable the +20 dB microphone gain: /R:0E=40
*Enable simulated stereo (if supported): /R:20=4000
*Enable simulated stereo (if supported): /R:20=4000
*Enable bass boost (if supported): /R:20=1000
*Enable bass boost (if supported): /R:20=1000
{| class="wikitable"
|+Platform Support:
!OS/2 2.x
!OS/2 3.0
!OS/2 4.0
!OS/2 4.5x
|-
|Yes
|Yes
|Yes
|Yes
|}


[[Category:DEVICE Statements]]
[[Category:DEVICE Statements]]

Latest revision as of 13:49, 10 April 2019

Product Support
OS/2 1.3
OS/2 2.0
OS/2 2.1
OS/2 2.11 SMP
OS/2 Warp 3
OS/2 Warp Connect
OS/2 Warp 4 S
OS/2 Warp Server for e-Business S

VIA audio sound system driver for the VIA Southbridge with built in AC97 Controller. 

DEVICE=\MMOS2\VIAUDD.SYS
NOTE
There are different drivers with the same name available. Please consult the readme delivered with the driver.

Parameter

  • /N: - Symbolic device name for binding with MMPM/2. This is automatically selected by MINSTALL.EXE. Defaults to VIAUD1$".
  • /NO_IRQ_SHARING - Disable the IRQ sharing mode. Normally, VIAUDD.SYS automatically detects whether IRQ sharing is needed and performs the necessary setup.
  • /!OEM - Prevent any special setup for AC'97 codec ICs. This parameter disables any vendor-specific setup done by the driver.
  • /ALC|/!ALC - Override ALC-201A detection. Normally the driver detects the presence of ALC-201A automatically and performs the necessary setup; however, the presence of codec may be forced using /ALC or disabled with /!ALC (/!ALC is a synonym for /!OEM).
  • /LFREQ|/AFREQ /LFREQ, which is the default for chip revisions >=0x30, uses a modified frequency algorithm known from VIA drivers for Linux. /AFREQ, default for the older revisions, uses the officially documented algorithm known from ALSA driver. Use /LFREQ if the sound plays too slowly; use /AFREQ if the sound plays too fast or with interruptions.
  • /VERBOSE - Verbose output, useful for troubleshooting or finding out the capabilities of a specific AC'97 solution. Shows if any step during initialization fails and makes a pause to let the user examine the results.
  • /QUIET - Quiet initialization - display no messages at all.
  • /R: - Configure Audio Codec '97 registers manually. This is intended for advanced users, as the IOCTL90 mixer interface should be usually enough for customization. The format of is: =,,... or ..=value,...
    Refer to AC'97 specification for a list of register values and their meanings.

Practical examples

  • Enable the +20 dB microphone gain: /R:0E=40
  • Enable simulated stereo (if supported): /R:20=4000
  • Enable bass boost (if supported): /R:20=1000
Retrieved from "https://www.edm2.com/index.php?title=VIAUDD.SYS&oldid=61532"