The Hercules Dualpix Exchange USB 2.0 webcam has two problems: 1) The built in microphone doesn't work anymore. (tried in Skype) 2) The video works, but the blue "video in use" light doesn't turn on anymore. (tried in Skype and Cheese) I confirmed that the webcam hardware is working correctly. I confirmed that the webcam works correctly with Linux kernel 2.6.32. Thank you.
This bug has been fixed as of Linux kernel 3.2.13. Thanks for your hard work! :)