information when using the D-Bus routines.
<variablelist>
<varlistentry>
+ <term>transport</term>
+ <listitem><para>Show IO activity (e.g. reads and writes)</para></listitem>
+ </varlistentry>
+ <varlistentry>
<term>message</term>
<listitem><para>Show all sent and received D-Bus messages</para></listitem>
</varlistentry>