BBA(4)

🎀 bba(4) — the IOASIC Baseboard Audio device driver 🎀

okay bestie, welcome to the bba era of the manual pages 💅 this one's literally about your sound chip and honestly? she's iconic in a vintage way ✨

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🌸 NAME 🌸

bba — the IOASIC Baseboard Audio device driver, aka the girl who handles your audio on some very specific old-school DEC machines 🫶

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🦋 SYNOPSIS 🦋

bba0   at ioasic? offset ?
audio* at audiobus?

that's it, that's the whole config vibe ✨ attach bba0 at ioasic? with offset ?, and the audio* bits hang out at audiobus? 🎀

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💖 DESCRIPTION 💖

okay so the bba driver is the one that provides support for the IOASIC baseboard audio you find on:

• DEC 3000/300 and 3000/500 systems (that's NetBSD/alpha 👑)
• DEC Personal DECstation systems (that's NetBSD/pmax 🌈)

and like — the baseboard audio driver is based on the AMD 79c30 ISDN and audio interface, which is giving "vintage but make it cute" ngl 🦋

⚠️ real talk though: this interface is only capable of playing and recording 8kHz mu-law audio. that's the whole range, bestie. no cap. it does not do more than that 💀

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⭐ SEE ALSO ⭐

• audio(4) 💜
• ioasic(4) 💜

go read those, iykyk 🫶

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🎀 HISTORY 🎀

the bba device driver appeared in NetBSD 1.5 ✨ and the name for the driver was adopted from the same driver in ULTRIX — literally an heirloom name at this point, we love a legacy moment 👑

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🌸 and that's a wrap, bestie! this page is slay, it's iconic, it's dated June 22, 2005, and it came to you from Debian via the Kernel Interfaces Manual — periodt 💅💖

mwah 💋 go touch grass and then go listen to some 8kHz mu-law audio 🦋✨