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

Show Posts

You can view here all posts made by this member. Note that you can only see posts made in areas to which you currently have access.

Messages - vogl

Pages: [1]
Discussion - Drivers / Re: FT4222H and Windows driver 2021
« on: June 17, 2021, 05:09:46 PM »
With new driver version  the USB-GPIO bridge works.

Discussion - Drivers / FT4222H and Windows driver 2021
« on: June 08, 2021, 02:04:40 PM »
For abaout five  years we use successfully a FT4222H to implement a  USB-SPI and USB-GPIO bridge in a Windows 10  based system.
The version of the FTDI Windows driver was up to now

Recently some customers did a Windows update and the FTDI driver version changed to
With this version we cannot use the USB-GPIO bridge function.
The library call  „FT_CreateDeviceInfoList()“ recognizes only 1 device (the USB-SPI-bridge).
With the former driver 2 logical devices were recognized.

In the Windows device-manager both logical devices  „FT4222H Interface A“ and „FT4222H Interface B“ are shown regardless of the driver version.

This behaviour can be reproduced with the „gpio_write“-sample in LibFT4222-v1.4.4.

Any hints?

Pages: [1]