CE(4)

💖 CE(4) — the Cronyx Tau-PCI/32 WAN adapter driver, bestie edition 💖

okay so this one lives in the i386 Kernel Interfaces Manual, and it's literally the driver for synchronous Cronyx Tau-PCI/32 WAN adapters. yes it's niche. yes it's iconic. let's get into it 🦋

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✨ NAME ✨

ce — driver for synchronous Cronyx Tau-PCI/32 WAN adapters

like. that's the whole name section. short, sweet, slays.

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🌸 SYNOPSIS 🌸

so to get this driver baked into your kernel, you drop this line into your kernel configuration file:

device ce

or, if you'd rather load it as a module at boot time (main character energy, no recompile), put this line in loader.conf(5):

if_ce_load="YES"

and there's more! additional options, bestie:

device sppp
options NETGRAPH
options NETGRAPH_CRONYX

that's the whole vibe check. moving on 💅

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💜 DESCRIPTION 💜

ngl this is the important part. the ce driver needs either sppp(4) or netgraph(4). which one?? that's not up to you, actually — it's determined by the NETGRAPH_CRONYX option, no cap.

• if NETGRAPH_CRONYX is present in your kernel configuration file → ce gets compiled with netgraph(4) support ✨
• otherwise → it gets compiled with sppp(4) support 💫

and if you're like "okay but how do I actually configure this thing", go read sconfig(8). it has all the info about ce adapter configuration. that's your girl for that. 🎀

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🦋 HARDWARE 🦋

the ce driver supports the following models of Tau-PCI/32 WAN adapters, and honestly, look at them:

• Cronyx Tau-PCI/32 — two fractional/unframed E1 interfaces, with 32 HDLC channels shared between them, with total adapter throughput 2048 kbps. two interfaces, one shared pool of channels, we love to see it 🔥
• Cronyx Tau-PCI/32-Lite — single fractional/unframed E1 interface, with 32 HDLC channels. the lite version! one interface, still 32 HDLC channels, still eating 💅

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🌈 SEE ALSO 🌈

the whole friend group, fr fr:

• cp(4)
• ctau(4)
• cx(4)
• sppp(4)
• ifconfig(8)
• sconfig(8)
• spppcontrol(8)

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👑 HISTORY 👑

the ce driver was added in FreeBSD 6.2, FreeBSD 5.5 and FreeBSD 4.11. three whole releases, she was everywhere, she was booked and busy. ⭐

and if you're on previous versions of FreeBSD and feeling left out — the ce driver for those is available from http://www.cronyx.ru/. go get her. 🫶

also real talk: the adapter config details live in sconfig(8), and the driver genuinely needs sppp(4) or netgraph(4) — pick your NETGRAPH_CRONYX situation before you build, bestie, or you're gonna have a bad time 😭

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and that's the whole page! this one's from the Debian crew, dated January 30, 2006 — a whole classic, and she's still here, still serving. 💖✨