On Friday 23 February 2007 5:05 pm, Alan Stern wrote: > On Fri, 23 Feb 2007, Greg KH wrote:
> > I have heard rumors that both Intel and mvista are starting to dig up > > the old patches and want to get this stuff all sorted out and into the > > main kernel tree. Hopefully something comes of it... Certainly I'd anticipate much more email. Previous discussions have been inconclusive, IMO basically because they were too much in the category of "solution in search of problem". Also, ISTR they didn't even start to get near device-specific power management... but, maybe you're not thinking about the patches I'm recalling! > My crystal ball is looking particularly cloudy today. Eventually > something will have to be done, but will it be done independently by each > subsystem? Or will there be a centralized PM core API with a > subsystem-specific hook? I have no idea. If I were to bet, I'd say per-subsystem approaches will work better than any Grand Unified/Centralized Scheme. Per-driver approaches will also be needed. > So it comes down to the same question: Should I submit this USB-only > facility for inclusion now, with the understanding that it may need to be > changed later? I'd say submit it, but with a clear statement about how changeable the interface is. Such a statement would be a kind of new ground for Linux, which is needed ... some folk take the wrong lesson about stability of kernel interfaces, and want all interfaces to be stable. That's not a realistic expectation (IMO) in cases where some experimentation is needed to reach the eventual answer. But it _is_ realistic to expect that if an interface isn't fully cooked, it will be declared as such ... so that userspace developers will at least know they need to communicate with the kernel developers if they plan to make heavy use of that interface. - Dave ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
