OpenWrt Forum Archive

Topic: FTDI Driver not working properly

The content of this topic has been archived on 19 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
supergeen
2 Nov 2016, 18:07

Hey everyone,

I have been working on communicating with a modem with both RS232 to USB & RS485 to USB converters. The package kmod-usb-serial-ftdi was enough to communicate with the Rs232 converter, but the Rs485 still does not work.

When I use "lsusb" I notice the Product ID and Vendor ID are the same for both converters, the full output is "Bus 001 Device 019: ID 0403:6001 Future Technology Devices Internal, Ltd FT232 USB-Serial (UART) IC.

So, are there separate driver's needed for RS485 vs. RS232 converters? They are both authentic FTDI converters from USBconverters.com. Any suggestions?

Thanks!

Post #2
daimonion
12 Mar 2018, 21:35

RS485 normaly uses a transceiver to generate a differential signal.
Did you get it to work?

i have another problem with an usb2serail ftdi chip which has the same vendor product id 0403:6001
Which version of kmod-usb-serial-ftdi do you use?

The discussion might have continued from here.