TD>
	</TR>
	<TR><TD><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=3 WIDTH=100%>
		<TR><TH VALIGN=TOP NOWRAP>SMP -> IOP</TH>
			<TD>
			The SMP sends a 'set filter' command followed by the BPF commands.
			</TD>
		</TR>
		<TR><TH VALIGN=TOP NOWRAP>IOP -> SMP</TH>
			<TD>
			The IOP returns a null terminated error string if it failed to accept the filter.
			If no error occurred, then a NULL terminated empty string is returned instead.
			Errors are:
			<UL>
			<LI>"Invalid BPF."
			<LI>"Insufficient resources fo