1 files changed, 37 insertions, 3 deletions

diff --git a/sys/contrib/dev/acpica/evmisc.c b/sys/contrib/dev/acpica/evmisc.c
index cb80387f5fa4..aae63b291a9f 100644
--- a/sys/contrib/dev/acpica/evmisc.c
+++ b/sys/contrib/dev/acpica/evmisc.c
@@ -1,8 +1,7 @@
 /******************************************************************************
  *
- * Module Name: evmisc - ACPI device notification handler dispatch
- *                       and ACPI Global Lock support
- *              $Revision: 47 $
+ * Module Name: evmisc - Miscellaneous event manager support functions
+ *              $Revision: 48 $
  *
  *****************************************************************************/
 
@@ -127,6 +126,41 @@
 
 /*******************************************************************************
  *
+ * FUNCTION:    AcpiEvIsNotifyObject
+ *
+ * PARAMETERS:  Node            - Node to check
+ *
+ * RETURN:      TRUE if notifies allowed on this object
+ *
+ * DESCRIPTION: Check type of node for a object that supports notifies.
+ *
+ *              TBD: This could be replaced by a flag bit in the node.
+ *
+ ******************************************************************************/
+
+BOOLEAN
+AcpiEvIsNotifyObject (
+    ACPI_NAMESPACE_NODE     *Node)
+{
+    switch (Node->Type)
+    {
+    case ACPI_TYPE_DEVICE:
+    case ACPI_TYPE_PROCESSOR:
+    case ACPI_TYPE_POWER:
+    case ACPI_TYPE_THERMAL:
+        /*
+         * These are the ONLY objects that can receive ACPI notifications
+         */
+        return (TRUE);
+
+    default:
+        return (FALSE);
+    }
+}
+
+
+/*******************************************************************************
+ *
  * FUNCTION:    AcpiEvGetGpeRegisterIndex
  *
  * PARAMETERS:  GpeNumber       - Raw GPE number