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Diffstat (limited to 'Documentation/wmi/acpi-interface.rst')
| -rw-r--r-- | Documentation/wmi/acpi-interface.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/wmi/acpi-interface.rst b/Documentation/wmi/acpi-interface.rst index d31af0ed9c08..f1b28835d23c 100644 --- a/Documentation/wmi/acpi-interface.rst +++ b/Documentation/wmi/acpi-interface.rst @@ -89,8 +89,14 @@ Similar to the ``WExx`` ACPI methods, except that it controls data collection instead of events and thus the last two characters of the ACPI method name are the method ID of the data block to enable/disable. +Those ACPI methods are also called before setting data blocks to match the +behaviour of the Windows driver. + _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. |