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| -rw-r--r-- | Documentation/wmi/acpi-interface.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/wmi/acpi-interface.rst b/Documentation/wmi/acpi-interface.rst index d31af0ed9c08..06fb7fcf4413 100644 --- a/Documentation/wmi/acpi-interface.rst +++ b/Documentation/wmi/acpi-interface.rst @@ -93,4 +93,7 @@ _WED ACPI method ---------------- Used to retrieve additional WMI event data, its single parameter is a integer -holding the notification ID of the event. +holding the notification ID of the event. This method should be evaluated every +time an ACPI notification is received, since some ACPI implementations use a +queue to store WMI event data items. This queue will overflow after a couple +of WMI events are received without retrieving the associated WMI event data. |