Exclude all host application directories from the Doxygen configuration files.

Demos/Device/ClassDriver/GenericHID/Doxygen.conf

@@ -780,7 +780,8 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = Documentation/
+EXCLUDE                = Documentation/ \
+                         HostTestApp/
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded

Demos/Device/LowLevel/BulkVendor/Doxygen.conf

@@ -780,7 +780,9 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = Documentation/
+EXCLUDE                = Documentation/ \
+                         HostTestApp/ \
+                         WindowsDriver/
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded

Demos/Device/LowLevel/GenericHID/Doxygen.conf

@@ -780,7 +780,8 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = Documentation/
+EXCLUDE                = Documentation/ \
+                         HostTestApp/
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded