Index: uspace/lib/libc/include/device/hw_res.h
===================================================================
--- uspace/lib/libc/include/device/hw_res.h	(revision 5cd136abc29be1860cb1f40730725d7f1d76a017)
+++ uspace/lib/libc/include/device/hw_res.h	(revision c1a8ae52fba8b8b7f0dfe4c310347c3d44299e2b)
@@ -39,4 +39,38 @@
 #include <bool.h>
 
+/** HW resource (e.g. interrupt, memory register, i/o register etc.). */
+typedef struct hw_resource {
+	hw_res_type_t type;
+	union {
+		struct {
+			uint64_t address;
+			endianness_t endianness;			
+			size_t size;			
+		} mem_range;
+		struct {
+			uint64_t address;
+			endianness_t endianness;			
+			size_t size;			
+		} io_range;
+		struct {
+			int irq;			
+		} interrupt;		
+	} res;	
+} hw_resource_t;
+
+typedef struct hw_resource_list {
+	size_t count;
+	hw_resource_t *resources;	
+} hw_resource_list_t;
+
+static inline void clean_hw_resource_list(hw_resource_list_t *hw_res)
+{
+	if(NULL != hw_res->resources) {
+		free(hw_res->resources);
+		hw_res->resources = NULL;
+	}
+	hw_res->count = 0;	
+}
+
 
 bool get_hw_resources(int dev_phone, hw_resource_list_t *hw_resources);