--- /dev/null
+<?xml version="1.0"?>
+<facility name="fs">
+ <description>The fs facility contains events related to file system operation</description>
+
+ <event name="buf_wait_start">
+ <description>Staring to wait for a buffer</description>
+ <field name="address"> <description>Address of the buffer head.</description> <pointer/> </field>
+ </event>
+
+ <event name="buf_wait_end">
+ <description>Ending to wait for a buffer</description>
+ <field name="address"> <description>Address of the buffer head.</description> <pointer/> </field>
+ </event>
+
+ <event name="exec">
+ <description>Executing a file</description>
+ <field name="filename"> <description>File name</description>
+ <sequence>
+ <uint/>
+ <uchar/>
+ </sequence>
+ </field>
+ </event>
+
+ <event name="open">
+ <description>Opening a file</description>
+ <field name="filename"> <description>File name</description>
+ <sequence>
+ <uint/>
+ <uchar/>
+ </sequence>
+ </field>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ </event>
+
+ <event name="close">
+ <description>Closing a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ </event>
+
+ <event name="read">
+ <description>Reading from a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ <field name="count"> <description>Number of bytes to read</description> <size_t/> </field>
+ </event>
+
+ <event name="write">
+ <description>Write to a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ <field name="count"> <description>Number of bytes to write</description> <size_t/> </field>
+ </event>
+
+ <event name="seek">
+ <description>Seek a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ <field name="offset"> <description>Number of bytes to write</description> <off_t/> </field>
+ <field name="origin"> <description>Number of bytes to write</description> <uint size="4"/> </field>
+ </event>
+
+ <event name="ioctl">
+ <description>Do a IOCTL on a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ <field name="cmd"> <description>Command</description> <uint size="4"/> </field>
+ <field name="arg"> <description>Argument</description> <uint size="4"/> </field>
+ </event>
+
+ <event name="select">
+ <description>Do a select on a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ <field name="timeout"> <description>Time out</description> <ulong/> </field>
+ </event>
+
+ <event name="poll">
+ <description>Do a poll on a file descriptor</description>
+ <field name="fd"> <description>File descriptor</description> <uint size="4"/> </field>
+ </event>
+
+</facility>