PUC(4)

📦
version 15.1 · 4 versions
, in freebsd 15.1, nixpkgs unstable

🌈 PUC(4) — PCI "Universal" Communications driver 💅

okay so first things first, bestie: this page is from the Kernel Interfaces Manual, and it's all about the puc driver. it's lowkey a legend, no cap. let's get into it.

✨ SYNOPSIS ✨

device pci
device puc
device uart
device ppc

like, you literally just drop these into your kernel config and you're vibing. periodt. 🫶

💖 DESCRIPTION 💖

the puc driver is a shim — and yes, it's giving "middle management" energy, but in the best way possible. it's the glue that connects PCI multi-port serial and parallel adapters to the uart(4) and ppc(4) drivers. so it doesn't do the actual work itself; it just makes the introductions. iconic behavior, honestly. 🎀

🌸 HARDWARE 🌸

okay bestie, this is the part where it gets long. the puc driver supports the following PCI/PCIe multi-port serial and parallel adapters — and no, i'm not skipping any of them, we don't do that here. 💅

  • Advantech 2-port PCI PCI-1602/1603 Rev A/B1
  • Applied Micro Circuits PCI 8 Port UART
  • Avlab Technology PCI IO 2S
  • Avlab Low Profile PCI 4 Serial
  • Boca Research PCI Turbo Serial 658/654
  • Brainboxes:
    • Instashield PCIe IX-400, IX-200, IX-100
    • Instashield PCI IS-400, IS-200
    • PX Series PCIe RS232/RS422/RS485/LPT
    • UC Series Universal PCI RS232/RS422/RS485/LPT
    • UP Series PCI Dual RS232
  • Comtrol RocketPort 550 PCI 16/8/4 port
  • Decision Computer PCCOM PCI 8/4/2 port
  • Digi Neo PCIe 4 and 8 Port (with and without RJ45)
  • Digi Neo PCI 4 and 8 Port
  • Dolphin Peripherals PCI 4035/4014
  • Exar:
    • XR17C/D152
    • XR17C154
    • XR17C158
    • XR17V258IV
    • XR17V352
    • XR17V354
    • XR17V358
  • Feasso PCI FPP-02 2S1P
  • HP Diva Serial [GSP] Multiport UART:
    • Tosca Console
    • Tosca Secondary
    • Maestro SP2
    • Superdome Console
    • Keystone SP2
    • Everest SP2
  • I-O DATA RSA-PCI2/R
  • IBM SurePOS 300 Series (481033H) serial ports
  • IC Book Labs:
    • Dreadnought x16 Pro/Lite
    • Ironclad x8 Pro
    • Gunboat x4 Pro/Lite/Low Profile
    • Gunboat x2 Low Profile
  • Kuroutoshikou SERIAL4P-LPPCI2
  • Lava Computers:
    • Dual Serial PCI
    • Quattro-PCIe
    • Quattro-PCI
    • Octopus-550 PCI
  • Moxa Technologies:
    • Smartio CP-102E/PCIe
    • Smartio CP-102EL/PCIe
    • Smartio C104H/PCI
    • Smartio CP-104UL/PCI
    • Smartio CP-104JU/PCI
    • Smartio CP-104EL/PCIe
    • Smartio CP-104EL-A/PCIe
    • CP-112UL PCI
    • Industio CP-114
    • Smartio CP-114EL/PCIe
    • Smartio CP-118EL-A/PCIe
    • C168H/PCI
    • C168U/PCI
    • CP-168EL/PCIe
    • Smartio CP-168EL-A/PCIe
  • NetMos NM9815 Dual 1284 Printer port PCI
  • NetMos NM9835 2/1 port UART + 1284 Printer PCI
  • NetMos NM9845 4/6 port UART + 1284 Printer PCI
  • NetMos NM9865 4/3/2 port UART + 1/2 port 1284 Printer PCI
  • Oxford Semiconductor based boards:
    • OX16PCI952 UART (with and without Parallel port)
    • OX16PCI954 UART
    • OX9160/OX16PCI954 UARTs
    • OX16PCI958 UART
  • Perle Ultraport4 Express PCIe Serial
  • Perle Speed8/Speed4/Speed2 LE PCI Serial
  • Quatech:
    • DSC-300/200/100 PCI
    • DSCLP-300/200/100 PCI
    • ESC-100/100D/100M PCI
    • QSC-300/200/100 PCI
    • QSCLP-100 PCI
  • SIIG Cyber Series of UART and parallel port boards:
    • Cyber 2S and 2SP1 PCI 16550
    • Cyber 4 and 4S PCI 16C650 (10x family and 20x family)
    • Cyber I/O PCI (10x family and 20x family)
    • Cyber Parallel Dual PCI (10x family and 20x family)
    • Cyber Serial Dual PCI (10x family and 20x family)
    • Cyber 2S1P PCI (10x family and 20x family)
    • PS8000 8S PCI 16C650 (20x family)
    • Quartet Serial 850 PCI
  • Sun 1040 PCI Quad Serial
  • Sunix MIO5xxxx 4/2/1 port UART and 1284 Printer
  • Sunix SUN1889/1888 PCI dual port serial
  • Sunix SER5xxxx 8/4/2 port serial
  • Syba Tech Ltd PCI-4S2P-550-ECP
  • Systembase SB16C1054/8 4/8 port serial
  • Titan PCI-800H/PCI-200H
  • VScom:
    • PCIex-800H
    • PCI-200HV2
    • 200Li uPCI
    • PCI-800L, PCI-200L, and PCI-100L
    • PCI-800, PCI-400, and PCI-200

like… that's a lot of hardware. but every single one of them is on the list, and we respect the hustle. 🔥

🦋 FILES 🦋

  • sys/dev/puc/pucdata.c — the literal list of supported devices. it's giving "the receipts" energy. keep it close. 💜

🌟 SEE ALSO 🌟

go read those if you wanna know what actually happens after puc makes the intro. iykyk. 😌

⭐ HISTORY ⭐

so this driver took the idea from the NetBSD puc driver, and it uses a substantial amount of the same data. respectfully borrowing, not stealing — we love a collaborative moment. 🫶

and that's the tea, bestie 💅 — this page came from the Debian crew, and it was signed off on June 11, 2025. now go forth and connect all the serial ports your heart desires. mwah! 🎀✨

📦 where this page comes from