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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