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deva-ctrl-sb.so

Driver for Sound Blaster 16 and compatible sound cards.


Note: You must be root to start this driver.

Syntax:

Direct invocation (also causes a new io-audio process to start):

io-audio -dsb ioport=port,irq=req,dma=ch,dma1=ch &

Mounting (requires that io-audio is already running):

mount -Tio-audio -oioport=port,irq=req,dma=ch,dma1=ch \
/lib/dll/deva-ctrl-sb.so &

Runs on:

x86 only (requires ISA bus)

Options:

dma=ch
The primary DMA channel to be used. The value of ch may be 0, 1, 3, 5, 6, or 7. The default value is 1.
dma1=ch
The secondary DMA channel to be used. The value of ch may be 0, 1, 3, 5, 6, or 7. The default value is 0.
ioport=port
Specifies the base I/O port for Sound Blaster commands. The value of port is usually 0x220, 0x240, 0x260, or 0x280. The default value is 0x220.
irq=req
The interrupt request line specified by req cannot be shared. The default value is 10.

Description:

The deva-ctrl-sb.so shared object is a DLL for the io-audio manager. It uses the API described in the Audio Developer's Guide.

While deva-ctrl-sb.so is running, you can use applications with sound, and those that control the sound-system (e.g. mixer).

Errors:

When an error occurs, deva-ctrl-sb.so sends a description of the error to the system logger (see slogger).

Caveats:

Some sound cards listed as being Sound Blaster compatible default to another mode (e.g. some ESS 18xx series (not ESS 1869), OPTi 931, Yamaha OPL3-SA). These cards will not work with this driver.

See also:

io-audio, mixer Audio Developer's Guide


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