NetBSD/share/man/man4/sb.4

.\"	$NetBSD: sb.4,v 1.7 1997/04/10 07:30:03 mikel Exp $
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.\" by John T. Kohl.
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.Dd November 4, 1995
.Dt SB 4
.Os NetBSD
.Sh NAME
.Nm sb
.Nd SoundBlaster family (and compatible) audio device driver
.Sh SYNOPSIS
.Cd "sb0 at isa? port 0x220 irq 5 drq 1"
.Cd "sb1 at isa? port 0x240 irq 7 drq 1 flags 1"
.Cd "sb2 at isapnp?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the SoundBlaster, SoundBlaster Pro,
SoundBlaster 16, Jazz 16, and hardware register-level compatible audio cards.
.Pp
The SoundBlaster series are half-duplex cards, capable of 8- and 16-bit
audio sample recording and playback at rates up to 44.1kHz (depending on
the particular model).
.Pp
The base I/O port address is usually jumper-selected to either 0x220 or
0x240 (newer cards may provide software configuration, but this driver
does not directly support them--you must configure the card for its I/O
addresses with other software).  The SoundBlaster takes 16 I/O ports.
For the SoundBlaster and SoundBlaster Pro, the IRQ and DRQ channels are
jumper-selected.  For the SoundBlaster 16, the IRQ and DRQ channels are
set by this driver to the values specified in the config file.  The IRQ
must be selected from the set {5,7,9,10}.
.Pp
The configuration file must use a nonzero 
.Cm flags
specification to enable the Jazz16 support.  This is to avoid potential
conflicts with other devices when probing the Jazz 16 because it requires
use of extra I/O ports not in the base port range.
.Pp
The joystick interface (if enabled by a jumper) is handled by the
.Xr joy 4
driver, and the optional SCSI CD-ROM interface is handled by the
.Xr aic 4
driver.
.Sh BUGS
The driver has not been extensively tested on original SoundBlaster,
SoundBlaster 16, or newer cards.
.Pp
The FM synthesizer, MIDI port, and non-SCSI CD-ROM interfaces are not
supported.
.Sh SEE ALSO
.Xr aic 4 ,
.Xr audio 4 ,
.Xr joy 4
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 1.0 .