i dont have programing knolage. i would like to learn how to program usb. would it be posible to learn it in under 3 months or so if i spend 2-3 hours a day atleast. also what program should i start in.

To learn anything in any given time frame is really up to your level of dedication and motivation. Is it possible, yes. If you are asking what language to start with... prehaps you should try C/C++ for starters. If ther is something that you need done oence for your USB device, chances are the code or program already exists to do just that. References: Bloodshed's Dev-C++ Compiler Google Search IR

Learn the API. Any language that can access the Windows API can use a USB device. You might try Python: http://www.oreilly.com/catalog/pythonwin32/reviews.html Visual Basic, VB.NET, VisualC++, and others work as well. http://www.codeproject.com/system/ppsc.asp http://www.lvr.com/usbcode.htm http://www.python.org/windows/win32/ And who said you needed Windows for this. You can lots of working source for Linux. http://wwwbode.cs.tum.edu/Par/arch/usb/ I recommend picking your platform and language, and then getting a good book (maybe from bookpool.com, an O'Reilly would be fine). I would recommend Python, as it is a scripting language (no compiling) and it's (generally) very clean. I would also recommend Windows if you have no experience in a Unix-like environment (to save you time). You can really use almost any programming language though.