Index: uspace/drv/hid/ps2mouse/ps2mouse.c
===================================================================
--- uspace/drv/hid/ps2mouse/ps2mouse.c	(revision c657bd7f48e0cda0c4e65bc45f24367c51318513)
+++ uspace/drv/hid/ps2mouse/ps2mouse.c	(revision 16f2dccd209e000faa95942cd1000cb27dbf408e)
@@ -36,4 +36,5 @@
 #include <stdbool.h>
 #include <errno.h>
+#include <str_error.h>
 #include <ddf/log.h>
 #include <io/keycode.h>
@@ -78,5 +79,5 @@
 	const int rc = chardev_read((mouse)->chardev, &data, 1, &nread); \
 	if (rc != EOK) { \
-		ddf_msg(LVL_ERROR, "Failed reading byte: %d", rc);\
+		ddf_msg(LVL_ERROR, "Failed reading byte: %s", str_error_name(rc));\
 		return rc; \
 	} \
@@ -95,5 +96,5 @@
 	const int rc = chardev_write((mouse)->chardev, &data, 1, &nwr); \
 	if (rc != EOK) { \
-		ddf_msg(LVL_ERROR, "Failed writing byte: %d", rc); \
+		ddf_msg(LVL_ERROR, "Failed writing byte: %s", str_error_name(rc)); \
 		return rc; \
 	} \