Hi! > > Are there some patches to test? I'd like to power down USB bus, even > > when it has device connected (I do not user fingerprint scanner that > > much). > > There are some old patches. I could update them to the current -mm kernel > and post them next week. Yes, that would be great. > The idea of the patches is that they will autosuspend a USB hub when it > has no active (i.e., unsuspended) children, and autosuspending a root hub > stops the USB controller from doing DMA. However, non-hub devices are not > yet automatically suspended, so you will have to suspend the fingerprint > scanner by hand. That is okay, I can do that. It saves 2 hours of battery life on my machine... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
