robert.bielik wrote: > > Hmm... USB Audio 2 class is a standardized specification. I would've > assumed that Microsoft generally would be keen on standards compliance? > The nice thing about standards is that there are so many to choose from. There are a number of USB class specs that do not have generic in-the-box drivers from Microsoft. There has to be a business case to justify the considerable development and testing expense. Standards are only interesting if they are used. If USB Audio 2 is a niche standard that is only interesting to a tiny fraction of the market (and the current evidence suggests that is the case), then it doesn't make sense to develop a class driver. To four decimal places, Audio Class 1.0 satisfies 100% of the Windows users in the world. As a point of comparison, remember that Visual C++ STILL does not support the C99 ISO standard, and there are a lot more C99 developers than there are USB Audio 2 devices. -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc.