1 files changed, 91 insertions, 0 deletions
diff --git a/grc/blocks/pad_source.xml b/grc/blocks/pad_source.xml
new file mode 100644
index 000000000..a56a65dcc
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+++ b/grc/blocks/pad_source.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Pad Source: IO Pads
+###################################################
+ -->
+<block>
+	<name>Pad Source</name>
+	<key>pad_source</key>
+    <make>#if str($type) == "message"
+None;self.message_port_register_hier_out($label)
+#end if</make>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value>in</value>
+		<type>string</type>
+	</param>
+	<param>
+		<name>Output Type</name>
+		<key>type</key>
+		<type>enum</type>
+		<option>
+			<name>Complex</name>
+			<key>complex</key>
+			<opt>size:gr.sizeof_gr_complex</opt>
+		</option>
+		<option>
+			<name>Float</name>
+			<key>float</key>
+			<opt>size:gr.sizeof_float</opt>
+		</option>
+		<option>
+			<name>Int</name>
+			<key>int</key>
+			<opt>size:gr.sizeof_int</opt>
+		</option>
+		<option>
+			<name>Short</name>
+			<key>short</key>
+			<opt>size:gr.sizeof_short</opt>
+		</option>
+		<option>
+			<name>Byte</name>
+			<key>byte</key>
+			<opt>size:gr.sizeof_char</opt>
+		</option>
+		<option>
+			<name>Message</name>
+			<key>message</key>
+			<opt>size:0</opt>
+		</option>
+		<option>
+			<name>Wildcard</name>
+			<key></key>
+			<opt>size:0</opt>
+		</option>
+	</param>
+	<param>
+		<name>Vec Length</name>
+		<key>vlen</key>
+		<value>1</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Optional</name>
+		<key>optional</key>
+		<value>False</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option>
+			<name>Optional</name>
+			<key>True</key>
+		</option>
+		<option>
+			<name>Required</name>
+			<key>False</key>
+		</option>
+	</param>
+	<check>$vlen &gt; 0</check>
+	<source>
+		<name>out</name>
+		<type>$type</type>
+		<vlen>$vlen</vlen>
+	</source>
+	<doc>
+The outputs of this block will become the inputs to this flow graph when it is instantiated as a hierarchical block.
+
+Pad sources will be ordered alphabetically by their ids. The first pad source will have an index of 0.
+	</doc>
+</block>