CODEWITHSUNDEEP
pythonusbpyserialusbserialpyvisa
betelgeuse
betelgeuse

Reputation: 459

USB-to-serial driver for Linux

I have a USB device that I need to control in Linux using Python and serial commands, it works with ASCII commands.

In Windows it works fine after I install the vendor driver and in Device Manager I see it as a COM3 port and I communicate using pyserial or pyvisa modules.

In Linux I see it as /dev/ttyUSB1 but I cannot communicate with it using pyserial or pyvisa. The problem is that the vendor doesn't provide Linux drivers.

How am I able to get the device behave as a serial port in Linux?

Upvotes: 0

Views: 9316

Answers (1)

ralf htp
ralf htp

Reputation: 9412

try python -m serial.tools.miniterm /dev/ttyUSB1 and read the issue on https://github.com/pyserial/pyserial/issues/67 especially the version of pyserial

if this issue is related to yours possibly this also works :

Managed to bypass this issue by passing dsrdtr=True and rtscts=True to serial.Serial() ... as described here

your device is based on an FTDI chip, the inbuilt linux kernel module for this is ftdi_sio and usb_serial see http://www.ftdichip.com/Support/Documents/AppNotes/AN_220_FTDI_Drivers_Installation_Guide_for_Linux.pdf

Upvotes: 2

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