Go Down

Topic: Linux Serial Communication Difficulty (Read 898 times) previous topic - next topic


Hi All,

I'm having some difficuly getting a machine running Debian to communicate with the Arduino UNO.  This application has absolutely no problems communicating with the Arduino Duemilanove through ttyUSB0.

When I connect the Arduino Duemilanove to the PC /dev will populate with ttyUSB0.

If I disconnect the Duemilanove and re-connect an Arduino UNO I do not see ttyUSB0 or ttyACM0…

Things I've tried:
•   I can connect to the UNO through Windows Vista so I know the Arduino works.
•   From my understanding the 8u2 USB to Serial IC uses usbcore - If I do a "lsmod" I can see usbcore running.
•   If I run the "lsusb" command I can see the UNO as: "Bus 002 Device 005: ID 2341:0001.

So why is /dev not populating with ttyUSB0 or ttyACM0 ?



have you tried to run..

'sudo modprobe cdc_acm'. If that still won't work, show me your lsmod output. Maybe I can help. Good luck.


I just had the same issue its cleared up by updating the firmware on the uno.
This post explains the process well -- > http://arduino.cc/forum/index.php/topic,38112.msg282438.html#msg282438

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131