diff --git a/src/scsi_aha154x.h b/src/scsi_aha154x.h
new file mode 100644
index 000000000..67734e070
--- /dev/null
+++ b/src/scsi_aha154x.h
@@ -0,0 +1,17 @@
+#ifndef SCSI_AHA154X_H
+# define SCSI_AHA154X_H
+
+
+typedef struct {
+    uint8_t	flags;		/* local flags */
+    uint8_t	bid;		/* board ID */
+    char	fwl, fwh;	/* firmware info */
+} aha_info;
+#define AHA_GLAG_MEMEN	0x01	/* BIOS Shadow RAM enabled */
+
+
+extern device_t aha1540b_device;
+extern device_t aha1542cf_device;
+  
+  
+#endif	/*SCSI_AHA154X_H*/