Hi Niels, in fact, I was reading through your code the other day. I was doing a checkout of Haiku and discovered, that someone was working on a USB stack. I was very happy to see that, as I always felt, this is a really important feature. While I was looking through your code, I could see no obvious errors, I was just interested in how you designed and implemented it. Of course, I have no clue about USB bus managers, and their design needs. I didn't even have enough of a clue on the subject to judge how far down the road you are... I think once you have developed something, that can be used and tested, you will get a lot more attention and feedback, and it will also encourage other developers to join forces with you. Don't let the lack of feedback discourage you. I know exactly how that feels, but rest assured, your work is appreciated nonetheless, and other people or just busy with their own work (as in other parts of Haiku), which does not at all mean they don't take notice of your contribution. It's just that even though they might have looked at your code, like I did, they probably didn't feel anything wrong with it and just wanted to wait for some testable results. Please, by all means, keep at it! Maybe you can write Carlos Hasan to see how he feels about helping you out. I know he has done some stuff for Haiku previously, and back when Be was alive, I was chatting with him from time to time, and he had some ideas about wanting to rewrite the USB stack. He has driver development experience (ATI TV-In), and obviously some thoughts on the implementation of a USB stack. Also, I'm sure that Thomas Kurschel will help you out if you have questions regarding his new Haiku driver model. Just ask him directly, it might take two or three days for him to answer, but usually, he is very throughough. Last but not least, I would highly recommend attending the next BeGeistert event, you get to meet a lot of the active Haiku people in person! I'm sure Ingo Weinhold and Axel Dörfler, Thomas Kurschel, Marcus Overhagen and Rudolf Kornelissen will all be there. Best regards, -Stephan