diff --git a/addons/deviceatlas/dummy/Os/daunix.c b/addons/deviceatlas/dummy/Os/daunix.c
new file mode 100644
index 0000000..ca696f9
--- /dev/null
+++ b/addons/deviceatlas/dummy/Os/daunix.c
@@ -0,0 +1,9 @@
+#include "dac.h"
+
+static char const __attribute__((unused)) rcsid[] = "$Id: dac.c, v dummy 1970/01/01 00:00:01 dcarlier Exp $";
+
+da_status_t
+da_atlas_read_mapped(const char *path, void *m, void **p, size_t *l)
+{
+    return DA_SYS;
+}
diff --git a/addons/deviceatlas/dummy/dac.h b/addons/deviceatlas/dummy/dac.h
index 92a9396..55bc6c0 100644
--- a/addons/deviceatlas/dummy/dac.h
+++ b/addons/deviceatlas/dummy/dac.h
@@ -224,6 +224,17 @@
 da_status_t da_atlas_open(da_atlas_t *atlas, da_property_decl_t *extra_props, const void *ptr, size_t pos);
 
 /**
+ * @brief read from a mapped data which then replace da_atlas_compile call
+ *
+ * @param dumppath, anonymous if NULL
+ * @param map for anonymous, it is the responsability of the caller to unmap it, ignored otherwise
+ * @param maplen for anonymous, it is the size of the mapped data, ignored otherwise
+ * @param ptr Pointer dynamically allocated if the mapping happened normally
+ * @param len size of the atlas image
+ * @return status of mapping
+ */
+da_status_t da_atlas_read_mapped(const char *path, void *m, void **p, size_t *l);
+/**
  * @brief Release any resources associated with the atlas structure atlas, which was previously generated from
  * da_read_atlas or da_compile_atlas.
  * @param atlas instance
diff --git a/addons/deviceatlas/dummy/dadwcom.c b/addons/deviceatlas/dummy/dadwcom.c
new file mode 100644
index 0000000..53c5fdf
--- /dev/null
+++ b/addons/deviceatlas/dummy/dadwcom.c
@@ -0,0 +1 @@
+#include <stdio.h>
diff --git a/addons/deviceatlas/dummy/dasch.c b/addons/deviceatlas/dummy/dasch.c
new file mode 100644
index 0000000..53c5fdf
--- /dev/null
+++ b/addons/deviceatlas/dummy/dasch.c
@@ -0,0 +1 @@
+#include <stdio.h>