MCA(4)

💖 mca — introduction to machine-independent MCA bus support and drivers 💖

okay so first things first, bestie: this is the MCA(4) page, and it lives in the Kernel Interfaces Manual — that's the manual name, and we're folding it in right here at the top like a little name tag 🎀

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✨ NAME ✨

mca — literally the introduction to machine-independent MCA bus support and drivers 💅 periodt.

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🦋 SYNOPSIS 🦋

mca0 at mainbus?

options MCAVERBOSE

So this part is machine-dependent, meaning it depends on the bus topology and the MCA bus interface of your system — no cap, it's a you thing 🫶 Typical MCA buses are connected directly to the main system bus, iykyk ✨

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🌸 DESCRIPTION 🌸

NetBSD ships a machine-independent MCA bus subsystem, plus several machine-independent MCA device drivers. That's the whole vibe — subsystem main character energy 👑

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💀 HARDWARE 💀

NetBSD includes machine-independent MCA drivers, sorted by device type and driver name, so it's giving organized queen behavior 💅

🧚 SCSI controllers

• aha(4) — Adaptec AHA-1640 SCSI interface 🔥
• esp(4) — NCR 53C90 SCSI Adapter ✨

🎀 Disk and tape controllers

• edc(4) — IBM ESDI Fixed Disk Controller 💾

🍓 Serial interfaces

• com(4) — NS8250-, NS16450-, and NS16550-based serial cards. 🫶

🌈 Network interfaces

• ate(4) — Allied-Telesis 1720 Ethernet interface cards 🦋
• we(4) — WD/SMC WD80x3x Ethernet interface cards and clones 👯
• le(4) — SKNET Personal and MC+ Ethernet interface cards 💜
• elmc(4) — 3Com EtherLink/MC (3c523) Ethernet interface ⭐
• ep(4) — 3Com EtherLink III 3c529 Ethernet interface 🌸
• tra(4) — Tiara LANCard/E and Standard MicroSystems 3016/MC Ethernet interface 🎀

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👀 SEE ALSO 👀

intro(4), mca(9) — go read these next, bestie, they're literally right there 💖

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📜 HISTORY 📜

The machine-independent MCA subsystem appeared in NetBSD 1.5. iconic behavior, honestly 👑

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and that's the page, bestie — shoutout to Debian for the source/version, dated February 26, 2021, and yes it's still the MCA(4) page — slay 💅✨🎀