Index: uspace/srv/hid/input/port/chardev.c
===================================================================
--- uspace/srv/hid/input/port/chardev.c	(revision c8ea6eca1c41df9b67e9c83a3b830bb036e10da8)
+++ uspace/srv/hid/input/port/chardev.c	(revision 063a364794dc48510948ecc3cf9196cd0a7cee9e)
@@ -138,5 +138,6 @@
 
 	while (true) {
-		rc = chardev_read(chardev, &b, sizeof(b), &nread);
+		rc = chardev_read(chardev, &b, sizeof(b), &nread,
+		    chardev_f_none);
 		if (rc != EOK || nread != sizeof(b)) {
 			printf("%s: Error reading data", NAME);