USB to 1-Wire Adaptor Design Wanted - I now have one wkn.

Does any on have a design for a USB to 1-wire adaptor. I have the Chip and just need a design. Also will the USB chip supply power to the 1-Wire Device?

Thanks

Original Message Edited. Post Comment.
I now have a working Interface if any one is interested. Based on 1-wire Design. Works well. Thanks Brian for you help to get this going (if you read this).