On Tue, 22 May 2007, Alan Stern wrote: > But if you kill the interrupt URB then there will be no more inputs and > hence nothing to generate any more output. Thus, when suspending you > should kill the inputs and wait for the outputs to drain (or else > explicitly plug the output queue). Then it will be safe to autoresume > whenever a new output queue entry arrives.
Hi Alan, I think that this is unfortunately not true. Let's take system with multiple keyboards and their LEDs as an excellent example again. If you kill the interrupt URB, there is nothing what will prevent other keyboard (PS/2 or even USB keyboard, which is not yet suspended) to generate an input event (user presses CapsLock/NumLock at a 'right' time). Then you'll get out of sync, won't you? Thanks, -- Jiri Kosina SUSE Labs ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
