r8616 - in trunk/BOOK: introduction/welcome pst/printing

dj at linuxfromscratch.org dj at linuxfromscratch.org
Sat Sep 25 21:24:46 PDT 2010


Author: dj
Date: 2010-09-25 22:24:42 -0600 (Sat, 25 Sep 2010)
New Revision: 8616

Modified:
   trunk/BOOK/introduction/welcome/changelog.xml
   trunk/BOOK/pst/printing/cups.xml
Log:
Added note to cups page about the new CUPS USB backend and usblp driver being incompatible.

Modified: trunk/BOOK/introduction/welcome/changelog.xml
===================================================================
--- trunk/BOOK/introduction/welcome/changelog.xml	2010-09-26 03:51:16 UTC (rev 8615)
+++ trunk/BOOK/introduction/welcome/changelog.xml	2010-09-26 04:24:42 UTC (rev 8616)
@@ -47,6 +47,10 @@
         <listitem>
           <para>[dj] - Corrected Xorg font paths.</para>
         </listitem>
+        <listitem>
+          <para>[dj] - Added note to cups page about the new CUPS USB backend
+          and usblp driver being incompatible.</para>
+        </listitem>
       </itemizedlist>
     </listitem>
 

Modified: trunk/BOOK/pst/printing/cups.xml
===================================================================
--- trunk/BOOK/pst/printing/cups.xml	2010-09-26 03:51:16 UTC (rev 8615)
+++ trunk/BOOK/pst/printing/cups.xml	2010-09-26 04:24:42 UTC (rev 8616)
@@ -107,6 +107,24 @@
 
 <screen role="root"><userinput>useradd -c "Print Service User" -d /dev/null -g lp -s /bin/false -u 9 lp</userinput></screen>
 
+    <note>
+      <para>If you plan to use a USB printer with
+      <application>CUPS</application>, do not enable the
+      <quote>usblp</quote> driver as either built-in or as a module in
+      your kernel configuration as it will cause the new 
+      <application>CUPS</application> USB backend to fail.
+      <filename>/var/log/sys.log</filename> will contain entries similar to the
+      following:</para>
+
+      <screen>kernel: [54631.796465] usb 4-1: usbfs: interface 0 claimed by usblp while 'usb' sets config #1</screen>
+
+      <para>The kernel config option is
+      <parameter>CONFIG_USB_PRINTER</parameter>
+      and can be found in menuconfig under
+      <quote>Device Drivers ---> USB support --->
+      USB Printer support</quote>.</para>
+    </note>
+
     <para>Install <application>CUPS</application> by running the
     following commands:</para>
 
@@ -176,6 +194,9 @@
     but this is considered to be a hack by
     <application>CUPS</application> developers.</para>
 
+<!-- This should be obvious, not to mention the new problem with usblp.
+     Omitting completely for now.
+
     <sect3 role="kernel" id="cups-kernel">
       <title>Kernel Configuration</title>
 
@@ -185,6 +206,7 @@
       support</quote> for a USB printer.</para>
 
     </sect3>
+-->
 
     <sect3 id="cups-init">
       <title>Boot Script</title>




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