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BBA(4) NetBSD Kernel Interfaces Manual BBA(4)
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bba -- IOASIC Baseboard Audio device driver
bba0 at ioasic? offset ?
audio* at audiobus?
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.
The bba device driver appeared in NetBSD 1.5. The name for the driver
was adopted from the same driver in ULTRIX.
NetBSD 9.2 June 22, 2005 NetBSD 9.2