diff --git a/src/datamatrix/decoder/mod.rs b/src/datamatrix/decoder/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/datamatrix/detector/mod.rs b/src/datamatrix/detector/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/datamatrix/encoder/mod.rs b/src/datamatrix/encoder/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/datamatrix/mod.rs b/src/datamatrix/mod.rs
new file mode 100644
index 0000000..49c643e
--- /dev/null
+++ b/src/datamatrix/mod.rs
@@ -0,0 +1,3 @@
+pub mod decoder;
+pub mod detector;
+pub mod encoder;
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 20517f3..f907498 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -82,3 +82,8 @@ pub use planar_yuv_luminance_source::*;
 
 mod rgb_luminance_source;
 pub use rgb_luminance_source::*;
+
+pub mod datamatrix;
+pub  mod multi;
+pub mod oned;
+pub mod pdf417;
\ No newline at end of file
diff --git a/src/multi/mod.rs b/src/multi/mod.rs
new file mode 100644
index 0000000..ef58fdc
--- /dev/null
+++ b/src/multi/mod.rs
@@ -0,0 +1 @@
+pub mod qrcode;
\ No newline at end of file
diff --git a/src/multi/qrcode/detector/mod.rs b/src/multi/qrcode/detector/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/multi/qrcode/mod.rs b/src/multi/qrcode/mod.rs
new file mode 100644
index 0000000..e08e35c
--- /dev/null
+++ b/src/multi/qrcode/mod.rs
@@ -0,0 +1 @@
+pub mod detector;
\ No newline at end of file
diff --git a/src/oned/mod.rs b/src/oned/mod.rs
new file mode 100644
index 0000000..4c7a948
--- /dev/null
+++ b/src/oned/mod.rs
@@ -0,0 +1 @@
+pub mod rss;
\ No newline at end of file
diff --git a/src/oned/rss/expanded/decoders/mod.rs b/src/oned/rss/expanded/decoders/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/oned/rss/expanded/mod.rs b/src/oned/rss/expanded/mod.rs
new file mode 100644
index 0000000..77772f4
--- /dev/null
+++ b/src/oned/rss/expanded/mod.rs
@@ -0,0 +1 @@
+pub mod decoders;
\ No newline at end of file
diff --git a/src/oned/rss/mod.rs b/src/oned/rss/mod.rs
new file mode 100644
index 0000000..df83649
--- /dev/null
+++ b/src/oned/rss/mod.rs
@@ -0,0 +1 @@
+pub mod expanded;
\ No newline at end of file
diff --git a/src/pdf417/decoder/ec/mod.rs b/src/pdf417/decoder/ec/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/pdf417/decoder/mod.rs b/src/pdf417/decoder/mod.rs
new file mode 100644
index 0000000..d62fa72
--- /dev/null
+++ b/src/pdf417/decoder/mod.rs
@@ -0,0 +1 @@
+pub mod ec;
\ No newline at end of file
diff --git a/src/pdf417/detector/mod.rs b/src/pdf417/detector/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/pdf417/encoder/mod.rs b/src/pdf417/encoder/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/src/pdf417/mod.rs b/src/pdf417/mod.rs
new file mode 100644
index 0000000..49c643e
--- /dev/null
+++ b/src/pdf417/mod.rs
@@ -0,0 +1,3 @@
+pub mod decoder;
+pub mod detector;
+pub mod encoder;
\ No newline at end of file