On 2014年05月09日 15:38, Pavel Machek wrote: > Hi! > >> Most time of battery resume callback is spent on executing AML code >> _BTP, _BIF and _BIF to get battery info, status and set alarm. These >> AML methods may access EC operation regions several times and consumes >> time. >> >> These operations are not necessary during devices resume and can run >> during POST_SUSPEND/HIBERNATION event when all processes are thawed. > > Does it mean that userspace will see pre-hibernation battery level for a while > after resume? Hi Pavel: Thanks for your review. No, when user access the battery sysfs interface, driver will read battery info and return new data. > > Pavel > -- Best regards Tianyu Lan -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html