diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 2e6a17f255..615adb96cb 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1369,6 +1369,30 @@
+
+ pixbufcache.bbclass
+
+
+ The pixbufcache class generates the proper
+ post-install and post-remove (postinst/postrm) scriptlets for packages
+ that install pixbuf loaders, which are used with
+ gdk-pixbuf.
+ These scriptlets call update_pixbuf_cache
+ to add the input method modules to the cache.
+ Since the cache files are architecture-specific,
+ update_pixbuf_cache is run using QEMU if the
+ postinst scriptlets need to be run on the build host during image
+ creation.
+
+
+
+ If the pixbuf loaders modules being installed are in packages other
+ than the main package, set
+ PIXBUF_PACKAGES
+ to include the packages containing the modules.
+
+
+
Perl Modules - cpan.bbclass
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 5e3edcd937..fccffe77bb 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -4646,6 +4646,24 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
+ PIXBUF_PACKAGES
+
+
+ When a recipe inherits the
+ pixbufcache
+ class, this variable identifies packages that contain
+ the pixbuf loaders modules used with
+ gdk-pixbuf that the OpenEmbedded build
+ system installs.
+ By default, these modules appear in the main package
+ (i.e. ${PN}).
+ Use this variable if the modules that have the pixbuf
+ loaders you need appear in a package other than that main
+ package.
+
+
+
+
PKGD