Index: uspace/srv/hid/input/gsp.c
===================================================================
--- uspace/srv/hid/input/gsp.c	(revision ab87db55cb5f202637cfdb407053e0d954a16e7d)
+++ uspace/srv/hid/input/gsp.c	(revision 5e801dccc49faadcb18cd8ddee6200633e8f11b8)
@@ -64,7 +64,7 @@
 } trans_key_t;
 
-static size_t trans_key_hash(void *key)
-{
-	trans_key_t *trans_key = (trans_key_t *)key;
+static size_t trans_key_hash(const void *key)
+{
+	const trans_key_t *trans_key = key;
 	return hash_combine(trans_key->input, trans_key->old_state);
 }
@@ -76,7 +76,7 @@
 }
 
-static bool trans_key_equal(void *key, const ht_link_t *item)
-{
-	trans_key_t *trans_key = (trans_key_t *)key;
+static bool trans_key_equal(const void *key, const ht_link_t *item)
+{
+	const trans_key_t *trans_key = key;
 	gsp_trans_t *t = hash_table_get_inst(item, gsp_trans_t, link);