On Sun, 25 Apr 2010, Rafael J. Wysocki wrote: > On Saturday 24 April 2010, Alan Stern wrote: > > On Fri, 23 Apr 2010, Arve Hjønnevåg wrote: > > > > > On Fri, Apr 23, 2010 at 2:08 PM, Dmitry Torokhov > > > <dmitry.torokhov@xxxxxxxxx> wrote: > > > > On Friday 23 April 2010 01:56:25 pm Randy Dunlap wrote: > > > >> On Thu, 22 Apr 2010 18:08:57 -0700 Arve Hjønnevåg wrote: > > > >> > Add an ioctl, EVIOCSSUSPENDBLOCK, to enable a suspend_blocker that will > > > >> > block suspend while the event queue is not empty. This allows userspace > > > >> > code to process input events while the device appears to be asleep. > > Is there some reason why this feature needs to be enabled by an > > ioctl? Why not make this suspend blocker permanently enabled? > > The ioctl is there so that user space can use suspend blockers, which is > needed because only user space know that some activities are going to continue > and therefore the system should not be suspended (like playing music "in the > background"). No, you're thinking of a different ioctl: SUSPEND_BLOCKER_IOCTL_BLOCK. This one (EVIOCSSUSPENDBLOCK) is present _only_ to enable one specific suspend blocker, which is activated when the input event queue is non-empty. I don't see any reason why it shouldn't be enabled all the time. Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
