--- /dev/null
+<?xml version="1.0"?>
+<facility name="block">
+ <description></description>
+
+ <event name="_blk_request_issue">
+ <description></description>
+
+ <field name="major"><description></description><uint/></field>
+ <field name="minor"><description></description><uint/></field>
+ <field name="direction"><description></description><uint/></field>
+ </event>
+
+ <event name="_blk_request_complete">
+ <description></description>
+
+ <field name="major"><description></description><uint/></field>
+ <field name="minor"><description></description><uint/></field>
+ <field name="direction"><description></description><uint/></field>
+ </event>
+
+</facility>