So, this is odd. I'm running Ubuntu 14.04, and my system did a kernel upgrade from the repository from 3.13.0-63-generic to 3.13.0-65-generic. And pyserial (2.7, installed through pip) stopped working.
Specifically, when I make read() calls on a Serial object, I get the error serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected?) This comes from the PosixSerial.read() method in serialposix.py, and seems to be a result of the select.select call screwing up. I reboot under 3.13.0-63-generic. My code works. I reboot under 3.13.0-65-generic. My code doesn't. Implication would seem to be that somehow between these kernel versions, the select() logic in the serial driver changed. This happens regardless of whether the serial port is real, FTDI USB-UART, or Prolific USB-UART. Can anyone else confirm? Also, who do I try to report this one to? Thanks, Rob -- Rob Gaddi, Highland Technology -- www.highlandtechnology.com Email address domain is currently out of order. See above to fix. -- https://mail.python.org/mailman/listinfo/python-list
