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<div dir="ltr"><div>Hi Chris,</div><div><br></div><div>Mike will no doubt have a more useful reply, but...</div><div><br></div><div>The short answer is that, according to the IANA IPP Registry, the value of 'none' has</div><div>never been registered in any IETF or PWG IPP spec as a valid keyword value for the <br></div><div>"requested-attributes" operation attribute. Hm...</div><div><br></div><div>Wondering,</div><div>- Ira</div><div><br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><i><font size="1">Ira McDonald (Musician / Software Architect)<br>Co-Chair - TCG Trusted Mobility Solutions WG</font></i></div><div><i><font size="1">Co-Chair - TCG Metadata Access Protocol SG<br></font></i></div><div dir="ltr"><i><font size="1">Chair - Linux Foundation Open Printing WG<br>Secretary - IEEE-ISTO Printer Working Group<br>Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG<br>IETF Designated Expert - IPP & Printer MIB<br>Blue Roof Music / High North Inc<br><a style="color:rgb(51,51,255)" href="http://sites.google.com/site/blueroofmusic" target="_blank">http://sites.google.com/site/blueroofmusic</a><br><a style="color:rgb(102,0,204)" href="http://sites.google.com/site/highnorthinc" target="_blank">http://sites.google.com/site/highnorthinc</a><br>mailto: <a href="mailto:blueroofmusic@gmail.com" target="_blank">blueroofmusic@gmail.com</a><br>(permanent) PO Box 221 Grand Marais, MI 49839 906-494-2434</font></i></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 6, 2020 at 8:12 PM Rizzo, Christopher via ipp <<a href="mailto:ipp@pwg.org">ipp@pwg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11pt">Trying to find in what IPP spec a requested-attributes value of 'none' is documented.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Also wondering what is the purpose of a Get-Printer-Attributes request whose requested-attributes value = 'none'?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Chris<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Christopher Rizzo<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Xerox Corporation<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">GDG/Discovery/Advance Technology<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">26600 SW Parkway Ave.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Wilsonville, OR 97070-9251<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Phone: (585) 314-6936<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Email: <a href="mailto:Christopher.Rizzo@xerox.com" target="_blank">Christopher.Rizzo@xerox.com</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black">"The realization came over me with full force that a good part of the remainder of my life was going to be spent in finding errors in my own programs."<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Maurice Wilkes, <i>
Memoirs of a Computer Pioneer</i></span><u></u><u></u></p>
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