> I created a directory called quickcam, under > src/add-ons/kernel/driver/video, where there is also > an incomplete usb_vision driver. I copied its Jamfiles and did some > modification but with not success. A prefered way would be to implement it in my userland usb_webcam driver. There is already a template file for quickcam. Adding a driver for each webcam is not reasonable as they all have different chips but share sometimes the CMOS sensor. Besides, handling picture format convertion is much easier in userland. And you'll see there is not much left in kernel land when you move all that code to userland. Of course that means extending the USB Kit to support isochronous. François.