The latest kernel in -updates (3.0.0-16.29) brings two bug fixes [0] for the ftdi_sio driver - one of them is for a previous regression in the 3.0-stable tree. Please test and see if this issue persists.
[0] USB: ftdi_sio: fix initial baud rate USB: ftdi_sio: fix TIOCSSERIAL baud_base handling -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/928334 Title: ftdi_sio does not work ok in 3.0.0.15 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/928334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs