On Wed, 25 Feb 2009, Alan Stern wrote: > On Tue, 24 Feb 2009, Rafael J. Wysocki wrote: > > > I think the most important source of level triggered interrupts are PCI > > devices, so perhaps we can make the PCI PM core use bit 10 of the PCI Device > > Control register to prevent devices from generating INTx after the drivers' > > suspend routines have been executed? > > I wish that were true. As I recall, the original PCI specification did > not define this bit, and older PCI devices don't support it. So you > can't count on being able to supress interrupt generation this way. It's definitely a new feature. In fact, I think even the current one makes it optional, so even for "new" devices it's very unclear how many of them actually support that bit. Linus _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
