Index: uspace/lib/c/include/ipc/vol.h
===================================================================
--- uspace/lib/c/include/ipc/vol.h	(revision d858a660afff3b05ffdfe37e6957b83b447f6b26)
+++ uspace/lib/c/include/ipc/vol.h	(revision 9c2c7d2247cc1ad0410cd61ab534af9a246d328b)
@@ -43,5 +43,6 @@
 	VOL_PART_INFO,
 	VOL_PART_EMPTY,
-	VOL_PART_MKFS
+	VOL_PART_LSUPP,
+	VOL_PART_MKFS,
 } vol_request_t;
 
Index: uspace/lib/c/include/types/vol.h
===================================================================
--- uspace/lib/c/include/types/vol.h	(revision d858a660afff3b05ffdfe37e6957b83b447f6b26)
+++ uspace/lib/c/include/types/vol.h	(revision 9c2c7d2247cc1ad0410cd61ab534af9a246d328b)
@@ -38,4 +38,5 @@
 #include <async.h>
 #include <ipc/vol.h>
+#include <stdbool.h>
 
 typedef enum {
@@ -76,4 +77,10 @@
 } vol_part_info_t;
 
+/** Volume label support */
+typedef struct {
+	/** Volume labels are supported */
+	bool supported;
+} vol_label_supp_t;
+
 #endif
 
Index: uspace/lib/c/include/vol.h
===================================================================
--- uspace/lib/c/include/vol.h	(revision d858a660afff3b05ffdfe37e6957b83b447f6b26)
+++ uspace/lib/c/include/vol.h	(revision 9c2c7d2247cc1ad0410cd61ab534af9a246d328b)
@@ -48,5 +48,6 @@
 extern int vol_part_info(vol_t *, service_id_t, vol_part_info_t *);
 extern int vol_part_empty(vol_t *, service_id_t);
-extern int vol_part_mkfs(vol_t *, service_id_t, vol_fstype_t);
+extern int vol_part_get_lsupp(vol_t *, vol_fstype_t, vol_label_supp_t *);
+extern int vol_part_mkfs(vol_t *, service_id_t, vol_fstype_t, const char *);
 
 #endif