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sb(4) [netbsd man page]

SB(4)							   BSD Kernel Interfaces Manual 						     SB(4)

NAME
sb -- SoundBlaster family (and compatible) audio device driver SYNOPSIS
sb0 at isa? port 0x220 irq 5 drq 1 drq2 5 sb1 at isa? port 0x240 irq 7 drq 1 flags 1 sb* at isapnp? sb* at pnpbios? index ? audio* at audiobus? midi* at sb? mpu* at sb? opl* at sb? DESCRIPTION
The sb driver provides support for the SoundBlaster, SoundBlaster Pro, SoundBlaster 16, Jazz 16, SoundBlaster AWE 32, SoundBlaster AWE 64, and hardware register-level compatible audio cards. 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). 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}. The configuration file must use 1 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. With a SoundBlaster 16 card the device is full duplex, but it can only sensibly handle a precision of 8 bits. It does so by extending the output 8 bit samples to 16 bits and using the 8 bit DMA channel for input and the 16 bit channel for output. The joystick interface (if enabled by a jumper) is handled by the joy(4) driver, and the optional SCSI CD-ROM interface is handled by the aic(4) driver. SoundBlaster 16 cards have MPU401 emulation and can use the mpu attachment, older cards have a different way to generate MIDI and has a midi device attached directly to the sb. SEE ALSO
aic(4), audio(4), isa(4), isapnp(4), joy(4), midi(4), mpu(4), opl(4), pnpbios(4) HISTORY
The sb device driver appeared in NetBSD 1.0. BUGS
Non-SCSI CD-ROM interfaces are not supported. The MIDI interface on the SB hardware is braindead, and the driver needs to busy wait while writing MIDI data. This will consume a lot of system time. BSD
June 22, 2005 BSD

Check Out this Related Man Page

SND_SBC(4)						   BSD Kernel Interfaces Manual 						SND_SBC(4)

NAME
snd_sbc, snd_sb16, snd_sb8 -- Creative Sound Blaster ISA and compatible bridge device driver SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file: device sound device snd_sbc device snd_sb16 device snd_sb8 Alternatively, to load the driver as a module at boot time, place the following lines in loader.conf(5): snd_sbc_load="YES" snd_sb16_load="YES" snd_sb8_load="YES" Non-PnP cards require the following lines in device.hints(5): hint.sbc.0.at="isa" hint.sbc.0.port="0x220" hint.sbc.0.irq="5" hint.sbc.0.drq="1" hint.sbc.0.flags="0x15" DESCRIPTION
The snd_sbc bridge driver allows the generic audio driver sound(4) to attach to Creative Sound Blaster ISA (mostly SB16 or SB8, known as SoundBlaster Pro) compatible audio cards. The value of flags specifies the secondary DMA channel. If the secondary DMA channel is C, set the flags to (C | 0x10). For a sound card without the secondary DMA channel, the flags should be set to zero. HARDWARE
The snd_sbc driver supports the following sound cards: o Avance Asound 110 o Avance Logic ALS100+ o Avance Logic ALS120 o Creative SB16 o Creative SB32 o Creative AWE64 o Creative AWE64 Gold o Creative ViBRA16C o Creative ViBRA16X o ESS ES1681 o ESS ES1688 o ESS ES1868 o ESS ES1869 o ESS ES1878 o ESS ES1879 o ESS ES1888 DIAGNOSTICS
sb_dspwr(XX) timed out. A command to the DSP has timed out. Check the I/O port configuration. bad irq XX (5/7/9/10 valid) The IRQ given to the driver is not valid. SEE ALSO
sound(4) HISTORY
The snd_sbc device driver first appeared in FreeBSD 4.0. AUTHORS
Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> BSD
February 17, 2007 BSD
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