Manual browser: uftdi(4)

UFTDI(4) Kernel Interfaces Manual UFTDI(4)


uftdiUSB support for serial adapters based on the FT8U100AX and FT8U232AM


uftdi* at uhub?
ucom* at uftdi?


The uftdi driver provides support for various serial adapters based on the FTDI USB UART IC family. Supported chip models are FT8U100AX, FT8U232AM, FT232BM, FT232R, dual channel FT2232D, dual channel FT2232H, and quad channel FT4232H.

The device is accessed through the ucom(4) driver which makes it behave like a tty(4).


The uftdi driver supports the following adapters:

B&B Electronics uLinks RS-422/485
Coastal ChipWorks TNC-X
Crystalfontz CFA-631 LCD
Crystalfontz CFA-632 LCD
Crystalfontz CFA-633 LCD
Crystalfontz CFA-634 LCD
Crystalfontz CFA-635 LCD
CTI USB-485-Mini and and USB-Nano-485
Falcom Samba 55/56 GSM/GPRS modem
Falcom Twist GSM/GPRS modem
Future Technology Devices DB9
Future Technology Devices IC
Future Technology Devices KW
Future Technology Devices RS232
Future Technology Devices Y6
Future Technology Devices Y8
Future Technology Devices Y9
Future Technology Devices YS
GlobalScale Technogogies SheevaPlug and OpenRD
HP USB-Serial adapter shipped with some HP laptops
Inland UAS111
Intrepid Control Systems NeoVI Blue
Intrepid Control Systems ValueCAN
Matrix Orbital LK/VK/PK202-24 LCD
Matrix Orbital LK/VK204-24 LCD
Matrix Orbital MX2/MX3/MX6 Series
Matrix Orbital MX4/MX5 Series LCD
QVS USC-1000
Robot Electronics USB to I2C Communications Module
Sealevel Systems USB-Serial adapter
SIIG US2308 Serial
Telldus Tellstick and Tellstick Duo
VScom USB-COM Mini


tty(4), ucom(4), usb(4)


The uftdi driver appeared in NetBSD 1.5.
October 18, 2012 NetBSD 7.0