TC(4)

🦋 TC(4) 🦋

okay so bestie, welcome to the tc page — the tc driver, aka the TURBOchannel expansion bus driver. this is the man page you're reading rn, from section 4 of the kernel interfaces manual, and honestly? she's iconic. let's get into it 💅

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✨ NAME ✨

tc — the TURBOchannel expansion bus driver, no cap 🚌💨

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🌸 SYNOPSIS 🌸

💜 alpha

tc* at tcasic?

💜 pmax

tc* at mainbus0

💜 vax

tc0 at vsbus0

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🎀 DESCRIPTION 🎀

so like, the tc driver gives you machine-independent support for the DEC TURBOchannel expansion bus — yk, the one that's literally on all DEC 5000-series machines with MIPS, DEC 3000-series with Alpha processors, and VAXstation 4000 machines with the optional TURBOchannel adaptor. she's versatile, she's everywhere, she ate 🫶

ur system may support additional TURBOchannel devices, bestie — the drivers for TURBOchannel devices that aren't listed here are machine-dependent. so go consult ur system's intro(4) for the extra info, mwah 💋

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🧚 HARDWARE 🧚

NetBSD includes machine-independent TURBOchannel drivers, sorted by device type and driver name (organized!! we love a structured queen 👑):

⭐ SCSI interfaces

• tcds(4) — PMAZ-DS, PMAZ-FS, PMAZB-AA and PMAZC-AA dual-channel SCSI adapters

⭐ Network interfaces

• le(4) — LANCE Ethernet interface

⭐ Frame buffers

• cfb(4) — PMAG-B CX colour unaccelerated 2-D framebuffer
• mfb(4) — PMAG-A MX monochrome framebuffer
• px(4) — PMAG-C PX accelerated graphics boards
• pxg(4) — PMAG-D, PMAG-E and PMAG-F PXG accelerated graphics boards
• sfb(4) — PMAGB-BA HX colour unaccelerated 2-D framebuffer
• tfb(4) — PMAG-J TX 24-bit colour unaccelerated 2-D framebuffer

⭐ Miscellaneous

• ioasic(4) — baseboard IO control ASIC for DEC TURBOchannel systems
• tcu(4) — TC-USB USB host and GPIO option

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🔥 SEE ALSO 🔥

intro(4), tc(9) — go read these too, iykyk 📚✨

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💖 HISTORY 💖

The tc driver first appeared in NetBSD 1.1. a true OG, main character energy since day one fr fr 🌈

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💀 BUGS 💀

The tc driver makes poor use of interrupt priority on the 5000/1xx series systems. 😭 not her best moment, but we still love her — just know that on 5000/1xx series systems the interrupt priority usage is, uh, not great. consider this ur vibe check warning 🙈

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and that's the whole page, bestie!! this one's from Debian, dated February 26, 2021 — so like, a little vintage but still slaying 💅🍓 mwah, go forth and TURBOchannel responsibly 🦋💜