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bba(4) [netbsd man page]

BBA(4)							   BSD Kernel Interfaces Manual 						    BBA(4)

NAME
bba -- IOASIC Baseboard Audio device driver SYNOPSIS
bba0 at ioasic? offset ? audio* at audiobus? DESCRIPTION
The bba driver provides support for the IOASIC baseboard audio found on DEC 3000/300, 3000/500 (NetBSD/alpha) and DEC Personal DECstation (NetBSD/pmax) systems. The baseboard audio driver is based on the AMD 79c30 ISDN and audio interface. The interface is only capable of playing and recording 8kHz mu-law audio. SEE ALSO
audio(4), ioasic(4) HISTORY
The bba device driver appeared in NetBSD 1.5. The name for the driver was adopted from the same driver in ULTRIX. BSD
June 22, 2005 BSD

Check Out this Related Man Page

ESS(4)							   BSD Kernel Interfaces Manual 						    ESS(4)

NAME
ess -- ESS Technology AudioDrive family audio device driver SYNOPSIS
ess* at isapnp? ess* at pnpbios? index ? ess* at ofisa? audio* at audiobus? opl* at ess? DESCRIPTION
The ess driver provides support for the ESS 1788, 1888, 1887, and 888 AudioDrive audio devices. The AudioDrive 1788 is a half-duplex device, while the 1888, 1887, and 888 are full-duplex. All are capable of 8- and 16-bit audio sample recording and playback at rates up to 44.1kHz. The AudioDrive takes 16 I/O ports. The I/O port range, IRQ, and DRQ channels are set by the driver to the values specified in the configura- tion file (or for isapnp, pnpbios, or ofisa, the values assigned from the firmware). The I/O port base must be one of 0x220, 0x230, 0x240, 0x250. The IRQ must be one of 5, 7, 9, 10 (or 15 on the 1887 only). The first DRQ channel must be selected from 0, 1, 3. The second DRQ chan- nel (used for playback by the full-duplex 1888/1887, ignored by the 1788) can additionally be set to 5. If both DRQ channels are used they must be different. The joystick interface (if enabled) is handled by the joy(4) driver. SEE ALSO
audio(4), isapnp(4), joy(4), ofisa(4), opl(4), pnpbios(4) HISTORY
The ess device driver appeared in NetBSD 1.4. BUGS
The AudioDrive devices have a SoundBlaster compatibility mode, and may be detected by the SoundBlaster driver (see sb(4)) rather than the AudioDrive driver. The workaround is to remove the SoundBlaster driver from the kernel configuration. BSD
June 22, 2005 BSD
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