Originally Posted by Krones
I'm using a USB-serial (FTDI) board to help me understand this problem. When plugged, it creates (correctly) /dev/ttyUSB0. Sometimes I can access it by echoing something directly to the device (echo 'text' >> /dev/ttyUSB0), and I can see the leds on the board blinking to signal the communication, which is all correct. Then eventually it stops working.
What does (1) dmesg
(command) show after this?, and (2) what does /var/log/messages
) show ?