---
name: "puc"
section: "4"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["linux", "freebsd", "openbsd"]
url: "https://new.carta.tech/puc"
---

# puc(4)

PCI “Universal” Communications driver

## NAME

**puc** – PCI “Universal” Communications driver

## SYNOPSIS

**device pci** **device puc** **device uart** **device ppc**

## DESCRIPTION

The **puc** driver acts as a shim to connect PCI multi-port serial and parallel adapters to the [uart(4)](/uart/4.md) and [ppc(4)](/ppc/4.md) driver.

## HARDWARE

The **puc** driver supports the following PCI/PCIe multi-port serial and parallel adapters:

- 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

## FILES

- *sys/dev/puc/pucdata.c*

  list of supported devices

## SEE ALSO

[ppc(4)](/ppc/4.md), [uart(4)](/uart/4.md)

## HISTORY

This driver took the idea from the NetBSD **puc** driver. It uses a substantial amount of the same data.