Hi. On Sun, 2008-10-05 at 11:49 +0200, Pavel Machek wrote: > On Mon 2008-09-22 17:19:59, Yauhen Kharuzhy wrote: > > Hi. > > > > We have an ARM board which does wakeup on USB cable connection to > > it. In our power supply driver "USB connect" interrupt handler calls > > power_supply_changed() which cause generation of uevent (in > > power_supply_changed_work() ). But usermodehelper_disabled > > still equals to 1 because resume process is not finished yet and > > userspace helper is not executed. > > > > How to fix this behaviour without breaking other kernel parts? We > > definitely need to invoke userspace helper on USB cable insertion. Yes, > > we can generate event after some time with timer but I think that a more > > elegant solution can be found. > > If you do it such that your 'delayed uevent' code can be reused by > other subsystems, it should not be too bad... One option would be to use the pm_notifier call chain, but it sounds to me like a better solution would be for someone to modify the kernel/kmod.c to handle delaying tasks until post hibernate/suspend if they're UMH_NO_WAIT (Yauhen, is your call blocking?) Regards, Nigel _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
