2 <description>block facility has events related to block read and block written.
</description>
5 <description>block read for disk data
</description>
6 <field name=
"major"> <description>major number of the device
</description> <int/> </field>
7 <field name=
"minor"> <description>minor number of the device
</description> <int/> </field>
8 <field name=
"bytes"> <description>number of bytes read
</description> <size_t/> </field>
12 <description>Block write event
</description>
13 <field name=
"major"> <description>major number of the device
</description> <int/> </field>
14 <field name=
"minor"> <description>minor number of the device
</description> <int/> </field>
15 <field name=
"bytes"> <description>number of bytes written
</description> <size_t/> </field>