FTDI Community

Please login or register.

Login with username, password and session length.
Advanced Search  


Welcome to the FTDI Community!

Please read our Welcome Note

Technical Support enquires
please contact the team
@ FTDI Support

New Bridgetek Community is now open

Please note that we have created the Bridgetek Community to discuss all Bridgetek products e.g. EVE, MCU.

Please follow this link and create a new user account to get started.

Bridgetek Community

Author Topic: FT4232H -- RS232 Serial Use  (Read 1331 times)


  • Newbie
  • *
  • Posts: 1
    • View Profile
FT4232H -- RS232 Serial Use
« on: October 27, 2021, 05:15:34 PM »

I am on linux (Debian 10). 

I have a FT4232 configured like this:
-- Port A -- RS232
-- Port B -- I2C
-- Port C -- GPIO
-- Port D -- GPIO

I can see /dev/ttyUSB0 until I remove the modules using:
-- sudo rmmod ftdi_sio
-- sudo rmmod usbserial

I do this so I can use the linux driver libftd2xx

But when I remove the modules then the ttyUSB0 is now missing.

Is there anyway to send RS232 via the system (/dev/xxxx) or must I send/receive via api calls in software?

« Last Edit: October 27, 2021, 07:45:46 PM by weaver4 »

FTDI Community

  • Administrator
  • Hero Member
  • *****
  • Posts: 847
    • View Profile
Re: FT4232H -- RS232 Serial Use
« Reply #1 on: October 28, 2021, 05:13:05 PM »

Yes, You need to send/receive via the API

FTDI Community