UVSCOM(4)

📦
version 15.1 · 3 versions
, in freebsd 14.5, freebsd 15.1, nixpkgs unstable

💅 UVSCOM(4) — ok so this is the uvscom manual page, section 4 of the kernel interfaces manual 🎀

Bestie. Gather round. We're talking about the driver for USB support for SUNTAC Slipper U VS-10U serial adapters, and honestly? It's giving niche-but-iconic. ✨

🌸 NAME 🌸

uvscom — the USB support driver for SUNTAC Slipper U VS-10U serial adapters. That's the whole vibe. No cap.

✨ SYNOPSIS ✨

So you wanna compile this driver into the kernel? Respect. Drop these lines into your kernel configuration file, exactly like this, no notes:

device usb
device ucom
device uvscom

Or — lowkey the easier route — you can load the driver as a module at boot time instead. For that, go put this line in loader.conf(5):

uvscom_load="YES"

Slay. That's it. 🫶

🔥 HARDWARE 🔥

The uvscom driver supports these adapters, and I'm listing every single one because we don't do omissions here, periodt:

  • DDI Pocket Air H" C@rd
  • DDI Pocket Air H" C@rd 64
  • NTT P-in
  • NTT P-in m@ster

(yes, the C@rd spelling is real, that's the actual product name, don't come for me 💀)

💖 DESCRIPTION 💖

Okay so what does uvscom actually do? It provides support for the SUNTAC Slipper U VS-10U chip. And Slipper U — main character energy, honestly — is a PC Card to USB converter for data communication card adapters. Like it takes your data communication card adapter and makes it a USB thing. Iconic little middleman. 🦋

The device is accessed through the ucom(4) driver, which is what makes it behave like a tty(4). So basically: it walks in wearing ucom's clothes and pretends to be a terminal. And it works. 🎀

🎀 FILES 🎀

Here's your file map, bestie, learn it, love it:

  • /dev/ttyU* — for callin ports
  • /dev/ttyU*.init
  • /dev/ttyU*.lock — the corresponding callin initial-state and lock-state devices

and then the callout side:

  • /dev/cuaU* — for callout ports
  • /dev/cuaU*.init
  • /dev/cuaU*.lock — the corresponding callout initial-state and lock-state devices

✨ callin vs callout, init vs lock, know the difference, iykyk ✨

👑 SEE ALSO 👑

Go read these next, in this exact order if you're feeling tidy:

🌈 HISTORY 🌈

The uvscom driver first appeared in FreeBSD and later in NetBSD 1.6. And this manual page was adopted from NetBSD by Tom Rhodes <trhodes@FreeBSD.org> in April 2002. Shoutout Tom. 🫶

⭐ quick vibe check: everything above is straight from the page — nothing invented, nothing skipped, no guessing at behaviour. That's the rule. 💅

and that's the whole manpage, bestie, you ate that 🍓 — this page is from Debian, dated April 26, 2017, and it covers UVSCOM(4) in full. mwah 💋

📦 where this page comes from