diff --git a/include/chipdrivers/probing.h b/include/chipdrivers/probing.h
new file mode 100644
index 0000000..7563f74
--- /dev/null
+++ b/include/chipdrivers/probing.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of the flashprog project.
+ *
+ * Copyright (C) 2023 Nico Huber <nico.h@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __PROBING_H__
+#define __PROBING_H__ 1
+
+#include <stdint.h>
+
+enum id_type {
+	ID_FIXME = 0,
+	ID_NONE,
+
+	ID_82802AB,
+	ID_EDI,
+	ID_EN29LV640B,
+	ID_JEDEC,
+	ID_JEDEC_29GL,
+	ID_OPAQUE,
+	ID_SPI_AT25F,
+	ID_SPI_RDID,
+	ID_SPI_RDID4,
+	ID_SPI_REMS,
+	ID_SPI_RES1,
+	ID_SPI_RES2,
+	ID_SPI_RES3,
+	ID_SPI_SFDP,
+	ID_SPI_ST95,
+	ID_W29EE011,
+};
+
+/*
+ * With 32bit manufacture_id and model_id we can cover IDs up to
+ * (including) the 4th bank of JEDEC JEP106W Standard Manufacturer's
+ * Identification code.
+ */
+struct id_info {
+	uint32_t manufacture;
+	uint32_t model;
+	enum id_type type;
+};
+
+#endif /* !__PROBING_H__ */
diff --git a/include/flash.h b/include/flash.h
index a67e64c..60e35d0 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -32,6 +32,7 @@
 #undef max
 #endif
 
+#include "chipdrivers/probing.h"
 #include "libflashprog.h"
 #include "layout.h"
 #include "writeprotect.h"
@@ -248,13 +249,7 @@
 
 	enum chipbustype bustype;
 
-	/*
-	 * With 32bit manufacture_id and model_id we can cover IDs up to
-	 * (including) the 4th bank of JEDEC JEP106W Standard Manufacturer's
-	 * Identification code.
-	 */
-	uint32_t manufacture_id;
-	uint32_t model_id;
+	struct id_info id;
 
 	/* Total chip size in kilobytes */
 	unsigned int total_size;