This is a known issue and we have been working with O2 micro to help them upstream their driver. This issue has been tracking in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1239938.
This is a known issue and we have been working with O2 micro to help them upstream their driver. This issue has been tracking in https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1239938.