Bluecherry develops and maintains a free open source (GPL) driver for it’s line of hardware compression video capture cards.  This driver is included in the Linux main stream kernel as of 2.6.36.  You can optionally download the driver from GitHub:

https://github.com/bluecherrydvr/

A bug tracker for this driver is available here:

https://github.com/bluecherrydvr/solo6x10/issues