Index: uspace/lib/c/generic/adt/char_map.c
===================================================================
--- uspace/lib/c/generic/adt/char_map.c	(revision 442ebbe420d38f012f9a7effac24e47ce31fd0be)
+++ uspace/lib/c/generic/adt/char_map.c	(revision 7560814352b04d14225a9bb2f70d5244792a9283)
@@ -65,5 +65,5 @@
  */
 static int
-char_map_add_item(char_map_t *map, const char *identifier, size_t length,
+char_map_add_item(char_map_t *map, const uint8_t *identifier, size_t length,
     const int value)
 {
@@ -139,5 +139,5 @@
  */
 int
-char_map_add(char_map_t *map, const char *identifier, size_t length,
+char_map_add(char_map_t *map, const uint8_t *identifier, size_t length,
     const int value)
 {
@@ -200,5 +200,5 @@
  */
 static char_map_t *
-char_map_find_node(const char_map_t *map, const char *identifier,
+char_map_find_node(const char_map_t *map, const uint8_t *identifier,
     size_t length)
 {
@@ -241,5 +241,5 @@
  * @return		CHAR_MAP_NULL if the key is not assigned a value.
  */
-int char_map_exclude(char_map_t *map, const char *identifier, size_t length)
+int char_map_exclude(char_map_t *map, const uint8_t *identifier, size_t length)
 {
 	char_map_t *node;
@@ -269,5 +269,5 @@
  *  @return		CHAR_MAP_NULL if the key is not assigned a value.
  */
-int char_map_find(const char_map_t *map, const char *identifier, size_t length)
+int char_map_find(const char_map_t *map, const uint8_t *identifier, size_t length)
 {
 	char_map_t *node;
@@ -329,5 +329,5 @@
  */
 int
-char_map_update(char_map_t *map, const char *identifier, const size_t length,
+char_map_update(char_map_t *map, const uint8_t *identifier, const size_t length,
     const int value)
 {